1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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>
35 #include "lpfc_sli4.h"
37 #include "lpfc_disc.h"
38 #include "lpfc_scsi.h"
40 #include "lpfc_logmsg.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43 #include "lpfc_debugfs.h"
45 static int lpfc_els_retry(struct lpfc_hba
*, struct lpfc_iocbq
*,
47 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba
*, struct lpfc_iocbq
*,
49 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
);
50 static int lpfc_issue_els_fdisc(struct lpfc_vport
*vport
,
51 struct lpfc_nodelist
*ndlp
, uint8_t retry
);
52 static int lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
,
53 struct lpfc_iocbq
*iocb
);
55 static int lpfc_max_els_tries
= 3;
58 * lpfc_els_chk_latt - Check host link attention event for a vport
59 * @vport: pointer to a host virtual N_Port data structure.
61 * This routine checks whether there is an outstanding host link
62 * attention event during the discovery process with the @vport. It is done
63 * by reading the HBA's Host Attention (HA) register. If there is any host
64 * link attention events during this @vport's discovery process, the @vport
65 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
66 * be issued if the link state is not already in host link cleared state,
67 * and a return code shall indicate whether the host link attention event
70 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
71 * state in LPFC_VPORT_READY, the request for checking host link attention
72 * event will be ignored and a return code shall indicate no host link
73 * attention event had happened.
76 * 0 - no host link attention event happened
77 * 1 - host link attention event happened
80 lpfc_els_chk_latt(struct lpfc_vport
*vport
)
82 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
83 struct lpfc_hba
*phba
= vport
->phba
;
86 if (vport
->port_state
>= LPFC_VPORT_READY
||
87 phba
->link_state
== LPFC_LINK_DOWN
||
88 phba
->sli_rev
> LPFC_SLI_REV3
)
91 /* Read the HBA Host Attention Register */
92 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
95 if (!(ha_copy
& HA_LATT
))
98 /* Pending Link Event during Discovery */
99 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
100 "0237 Pending Link Event during "
101 "Discovery: State x%x\n",
102 phba
->pport
->port_state
);
104 /* CLEAR_LA should re-enable link attention events and
105 * we should then immediately take a LATT event. The
106 * LATT processing should call lpfc_linkdown() which
107 * will cleanup any left over in-progress discovery
110 spin_lock_irq(shost
->host_lock
);
111 vport
->fc_flag
|= FC_ABORT_DISCOVERY
;
112 spin_unlock_irq(shost
->host_lock
);
114 if (phba
->link_state
!= LPFC_CLEAR_LA
)
115 lpfc_issue_clear_la(phba
, vport
);
121 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
122 * @vport: pointer to a host virtual N_Port data structure.
123 * @expectRsp: flag indicating whether response is expected.
124 * @cmdSize: size of the ELS command.
125 * @retry: number of retries to the command IOCB when it fails.
126 * @ndlp: pointer to a node-list data structure.
127 * @did: destination identifier.
128 * @elscmd: the ELS command code.
130 * This routine is used for allocating a lpfc-IOCB data structure from
131 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
132 * passed into the routine for discovery state machine to issue an Extended
133 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
134 * and preparation routine that is used by all the discovery state machine
135 * routines and the ELS command-specific fields will be later set up by
136 * the individual discovery machine routines after calling this routine
137 * allocating and preparing a generic IOCB data structure. It fills in the
138 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
139 * payload and response payload (if expected). The reference count on the
140 * ndlp is incremented by 1 and the reference to the ndlp is put into
141 * context1 of the IOCB data structure for this IOCB to hold the ndlp
142 * reference for the command's callback function to access later.
145 * Pointer to the newly allocated/prepared els iocb data structure
146 * NULL - when els iocb data structure allocation/preparation failed
149 lpfc_prep_els_iocb(struct lpfc_vport
*vport
, uint8_t expectRsp
,
150 uint16_t cmdSize
, uint8_t retry
,
151 struct lpfc_nodelist
*ndlp
, uint32_t did
,
154 struct lpfc_hba
*phba
= vport
->phba
;
155 struct lpfc_iocbq
*elsiocb
;
156 struct lpfc_dmabuf
*pcmd
, *prsp
, *pbuflist
;
157 struct ulp_bde64
*bpl
;
161 if (!lpfc_is_link_up(phba
))
164 /* Allocate buffer for command iocb */
165 elsiocb
= lpfc_sli_get_iocbq(phba
);
171 * If this command is for fabric controller and HBA running
172 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
174 if ((did
== Fabric_DID
) &&
175 (phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
176 ((elscmd
== ELS_CMD_FLOGI
) ||
177 (elscmd
== ELS_CMD_FDISC
) ||
178 (elscmd
== ELS_CMD_LOGO
)))
181 elsiocb
->iocb_flag
|=
182 ((LPFC_ELS_ID_FLOGI
<< LPFC_FIP_ELS_ID_SHIFT
)
183 & LPFC_FIP_ELS_ID_MASK
);
186 elsiocb
->iocb_flag
|=
187 ((LPFC_ELS_ID_FDISC
<< LPFC_FIP_ELS_ID_SHIFT
)
188 & LPFC_FIP_ELS_ID_MASK
);
191 elsiocb
->iocb_flag
|=
192 ((LPFC_ELS_ID_LOGO
<< LPFC_FIP_ELS_ID_SHIFT
)
193 & LPFC_FIP_ELS_ID_MASK
);
197 elsiocb
->iocb_flag
&= ~LPFC_FIP_ELS_ID_MASK
;
199 icmd
= &elsiocb
->iocb
;
201 /* fill in BDEs for command */
202 /* Allocate buffer for command payload */
203 pcmd
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
205 pcmd
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &pcmd
->phys
);
206 if (!pcmd
|| !pcmd
->virt
)
207 goto els_iocb_free_pcmb_exit
;
209 INIT_LIST_HEAD(&pcmd
->list
);
211 /* Allocate buffer for response payload */
213 prsp
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
215 prsp
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
217 if (!prsp
|| !prsp
->virt
)
218 goto els_iocb_free_prsp_exit
;
219 INIT_LIST_HEAD(&prsp
->list
);
223 /* Allocate buffer for Buffer ptr list */
224 pbuflist
= kmalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
226 pbuflist
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
,
228 if (!pbuflist
|| !pbuflist
->virt
)
229 goto els_iocb_free_pbuf_exit
;
231 INIT_LIST_HEAD(&pbuflist
->list
);
234 icmd
->un
.elsreq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
235 icmd
->un
.elsreq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
236 icmd
->un
.elsreq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
237 icmd
->un
.elsreq64
.bdl
.bdeSize
= (2 * sizeof(struct ulp_bde64
));
239 icmd
->un
.elsreq64
.remoteID
= did
; /* DID */
240 icmd
->ulpCommand
= CMD_ELS_REQUEST64_CR
;
241 icmd
->ulpTimeout
= phba
->fc_ratov
* 2;
243 icmd
->un
.xseq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
244 icmd
->un
.xseq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
245 icmd
->un
.xseq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
246 icmd
->un
.xseq64
.bdl
.bdeSize
= sizeof(struct ulp_bde64
);
247 icmd
->un
.xseq64
.xmit_els_remoteID
= did
; /* DID */
248 icmd
->ulpCommand
= CMD_XMIT_ELS_RSP64_CX
;
250 icmd
->ulpBdeCount
= 1;
252 icmd
->ulpClass
= CLASS3
;
255 * If we have NPIV enabled, we want to send ELS traffic by VPI.
256 * For SLI4, since the driver controls VPIs we also want to include
257 * all ELS pt2pt protocol traffic as well.
259 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) ||
260 ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
261 (vport
->fc_flag
& FC_PT2PT
))) {
264 icmd
->un
.elsreq64
.myID
= vport
->fc_myDID
;
266 /* For ELS_REQUEST64_CR, use the VPI by default */
267 icmd
->ulpContext
= phba
->vpi_ids
[vport
->vpi
];
271 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
272 if (elscmd
== ELS_CMD_ECHO
)
273 icmd
->ulpCt_l
= 0; /* context = invalid RPI */
275 icmd
->ulpCt_l
= 1; /* context = VPI */
278 bpl
= (struct ulp_bde64
*) pbuflist
->virt
;
279 bpl
->addrLow
= le32_to_cpu(putPaddrLow(pcmd
->phys
));
280 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(pcmd
->phys
));
281 bpl
->tus
.f
.bdeSize
= cmdSize
;
282 bpl
->tus
.f
.bdeFlags
= 0;
283 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
287 bpl
->addrLow
= le32_to_cpu(putPaddrLow(prsp
->phys
));
288 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(prsp
->phys
));
289 bpl
->tus
.f
.bdeSize
= FCELSSIZE
;
290 bpl
->tus
.f
.bdeFlags
= BUFF_TYPE_BDE_64
;
291 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
294 /* prevent preparing iocb with NULL ndlp reference */
295 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
296 if (!elsiocb
->context1
)
297 goto els_iocb_free_pbuf_exit
;
298 elsiocb
->context2
= pcmd
;
299 elsiocb
->context3
= pbuflist
;
300 elsiocb
->retry
= retry
;
301 elsiocb
->vport
= vport
;
302 elsiocb
->drvrTimeout
= (phba
->fc_ratov
<< 1) + LPFC_DRVR_TIMEOUT
;
305 list_add(&prsp
->list
, &pcmd
->list
);
308 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
309 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
310 "0116 Xmit ELS command x%x to remote "
311 "NPORT x%x I/O tag: x%x, port state: x%x\n",
312 elscmd
, did
, elsiocb
->iotag
,
315 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
316 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
317 "0117 Xmit ELS response x%x to remote "
318 "NPORT x%x I/O tag: x%x, size: x%x\n",
319 elscmd
, ndlp
->nlp_DID
, elsiocb
->iotag
,
324 els_iocb_free_pbuf_exit
:
326 lpfc_mbuf_free(phba
, prsp
->virt
, prsp
->phys
);
329 els_iocb_free_prsp_exit
:
330 lpfc_mbuf_free(phba
, pcmd
->virt
, pcmd
->phys
);
333 els_iocb_free_pcmb_exit
:
335 lpfc_sli_release_iocbq(phba
, elsiocb
);
340 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
341 * @vport: pointer to a host virtual N_Port data structure.
343 * This routine issues a fabric registration login for a @vport. An
344 * active ndlp node with Fabric_DID must already exist for this @vport.
345 * The routine invokes two mailbox commands to carry out fabric registration
346 * login through the HBA firmware: the first mailbox command requests the
347 * HBA to perform link configuration for the @vport; and the second mailbox
348 * command requests the HBA to perform the actual fabric registration login
352 * 0 - successfully issued fabric registration login for @vport
353 * -ENXIO -- failed to issue fabric registration login for @vport
356 lpfc_issue_fabric_reglogin(struct lpfc_vport
*vport
)
358 struct lpfc_hba
*phba
= vport
->phba
;
360 struct lpfc_dmabuf
*mp
;
361 struct lpfc_nodelist
*ndlp
;
362 struct serv_parm
*sp
;
366 sp
= &phba
->fc_fabparam
;
367 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
368 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
373 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
379 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
380 lpfc_config_link(phba
, mbox
);
381 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
384 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
385 if (rc
== MBX_NOT_FINISHED
) {
390 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
395 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, Fabric_DID
, (uint8_t *)sp
, mbox
,
402 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_fabric_reg_login
;
404 /* increment the reference count on ndlp to hold reference
405 * for the callback routine.
407 mbox
->context2
= lpfc_nlp_get(ndlp
);
409 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
410 if (rc
== MBX_NOT_FINISHED
) {
412 goto fail_issue_reg_login
;
417 fail_issue_reg_login
:
418 /* decrement the reference count on ndlp just incremented
419 * for the failed mbox command.
422 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
423 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
426 mempool_free(mbox
, phba
->mbox_mem_pool
);
429 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
430 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
431 "0249 Cannot issue Register Fabric login: Err %d\n", err
);
436 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
437 * @vport: pointer to a host virtual N_Port data structure.
439 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
440 * the @vport. This mailbox command is necessary for SLI4 port only.
443 * 0 - successfully issued REG_VFI for @vport
444 * A failure code otherwise.
447 lpfc_issue_reg_vfi(struct lpfc_vport
*vport
)
449 struct lpfc_hba
*phba
= vport
->phba
;
451 struct lpfc_nodelist
*ndlp
;
452 struct serv_parm
*sp
;
453 struct lpfc_dmabuf
*dmabuf
;
456 sp
= &phba
->fc_fabparam
;
457 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
458 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
459 !(phba
->link_flag
& LS_LOOPBACK_MODE
) &&
460 !(vport
->fc_flag
& FC_PT2PT
)) {
461 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
462 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
468 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
473 dmabuf
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &dmabuf
->phys
);
476 goto fail_free_dmabuf
;
479 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
482 goto fail_free_coherent
;
484 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
485 memcpy(dmabuf
->virt
, &phba
->fc_fabparam
, sizeof(vport
->fc_sparam
));
486 lpfc_reg_vfi(mboxq
, vport
, dmabuf
->phys
);
487 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vfi
;
488 mboxq
->vport
= vport
;
489 mboxq
->context1
= dmabuf
;
490 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
491 if (rc
== MBX_NOT_FINISHED
) {
498 mempool_free(mboxq
, phba
->mbox_mem_pool
);
500 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
504 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
505 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
506 "0289 Issue Register VFI failed: Err %d\n", rc
);
511 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
512 * @vport: pointer to a host virtual N_Port data structure.
514 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
515 * the @vport. This mailbox command is necessary for SLI4 port only.
518 * 0 - successfully issued REG_VFI for @vport
519 * A failure code otherwise.
522 lpfc_issue_unreg_vfi(struct lpfc_vport
*vport
)
524 struct lpfc_hba
*phba
= vport
->phba
;
525 struct Scsi_Host
*shost
;
529 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
531 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
532 "2556 UNREG_VFI mbox allocation failed"
533 "HBA state x%x\n", phba
->pport
->port_state
);
537 lpfc_unreg_vfi(mboxq
, vport
);
538 mboxq
->vport
= vport
;
539 mboxq
->mbox_cmpl
= lpfc_unregister_vfi_cmpl
;
541 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
542 if (rc
== MBX_NOT_FINISHED
) {
543 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
544 "2557 UNREG_VFI issue mbox failed rc x%x "
546 rc
, phba
->pport
->port_state
);
547 mempool_free(mboxq
, phba
->mbox_mem_pool
);
551 shost
= lpfc_shost_from_vport(vport
);
552 spin_lock_irq(shost
->host_lock
);
553 vport
->fc_flag
&= ~FC_VFI_REGISTERED
;
554 spin_unlock_irq(shost
->host_lock
);
559 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
560 * @vport: pointer to a host virtual N_Port data structure.
561 * @sp: pointer to service parameter data structure.
563 * This routine is called from FLOGI/FDISC completion handler functions.
564 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
565 * node nodename is changed in the completion service parameter else return
566 * 0. This function also set flag in the vport data structure to delay
567 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
568 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
569 * node nodename is changed in the completion service parameter.
572 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
573 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
577 lpfc_check_clean_addr_bit(struct lpfc_vport
*vport
,
578 struct serv_parm
*sp
)
580 uint8_t fabric_param_changed
= 0;
581 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
583 if ((vport
->fc_prevDID
!= vport
->fc_myDID
) ||
584 memcmp(&vport
->fabric_portname
, &sp
->portName
,
585 sizeof(struct lpfc_name
)) ||
586 memcmp(&vport
->fabric_nodename
, &sp
->nodeName
,
587 sizeof(struct lpfc_name
)))
588 fabric_param_changed
= 1;
591 * Word 1 Bit 31 in common service parameter is overloaded.
592 * Word 1 Bit 31 in FLOGI request is multiple NPort request
593 * Word 1 Bit 31 in FLOGI response is clean address bit
595 * If fabric parameter is changed and clean address bit is
596 * cleared delay nport discovery if
597 * - vport->fc_prevDID != 0 (not initial discovery) OR
598 * - lpfc_delay_discovery module parameter is set.
600 if (fabric_param_changed
&& !sp
->cmn
.clean_address_bit
&&
601 (vport
->fc_prevDID
|| lpfc_delay_discovery
)) {
602 spin_lock_irq(shost
->host_lock
);
603 vport
->fc_flag
|= FC_DISC_DELAYED
;
604 spin_unlock_irq(shost
->host_lock
);
607 return fabric_param_changed
;
612 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
613 * @vport: pointer to a host virtual N_Port data structure.
614 * @ndlp: pointer to a node-list data structure.
615 * @sp: pointer to service parameter data structure.
616 * @irsp: pointer to the IOCB within the lpfc response IOCB.
618 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
619 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
620 * port in a fabric topology. It properly sets up the parameters to the @ndlp
621 * from the IOCB response. It also check the newly assigned N_Port ID to the
622 * @vport against the previously assigned N_Port ID. If it is different from
623 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
624 * is invoked on all the remaining nodes with the @vport to unregister the
625 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
626 * is invoked to register login to the fabric.
629 * 0 - Success (currently, always return 0)
632 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
633 struct serv_parm
*sp
, IOCB_t
*irsp
)
635 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
636 struct lpfc_hba
*phba
= vport
->phba
;
637 struct lpfc_nodelist
*np
;
638 struct lpfc_nodelist
*next_np
;
639 uint8_t fabric_param_changed
;
641 spin_lock_irq(shost
->host_lock
);
642 vport
->fc_flag
|= FC_FABRIC
;
643 spin_unlock_irq(shost
->host_lock
);
645 phba
->fc_edtov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
646 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
647 phba
->fc_edtov
= (phba
->fc_edtov
+ 999999) / 1000000;
649 phba
->fc_edtovResol
= sp
->cmn
.edtovResolution
;
650 phba
->fc_ratov
= (be32_to_cpu(sp
->cmn
.w2
.r_a_tov
) + 999) / 1000;
652 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
653 spin_lock_irq(shost
->host_lock
);
654 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
655 spin_unlock_irq(shost
->host_lock
);
658 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
659 memcpy(&ndlp
->nlp_portname
, &sp
->portName
, sizeof(struct lpfc_name
));
660 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
, sizeof(struct lpfc_name
));
661 ndlp
->nlp_class_sup
= 0;
662 if (sp
->cls1
.classValid
)
663 ndlp
->nlp_class_sup
|= FC_COS_CLASS1
;
664 if (sp
->cls2
.classValid
)
665 ndlp
->nlp_class_sup
|= FC_COS_CLASS2
;
666 if (sp
->cls3
.classValid
)
667 ndlp
->nlp_class_sup
|= FC_COS_CLASS3
;
668 if (sp
->cls4
.classValid
)
669 ndlp
->nlp_class_sup
|= FC_COS_CLASS4
;
670 ndlp
->nlp_maxframe
= ((sp
->cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
671 sp
->cmn
.bbRcvSizeLsb
;
673 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
674 memcpy(&vport
->fabric_portname
, &sp
->portName
,
675 sizeof(struct lpfc_name
));
676 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
677 sizeof(struct lpfc_name
));
678 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
680 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
681 if (sp
->cmn
.response_multiple_NPort
) {
682 lpfc_printf_vlog(vport
, KERN_WARNING
,
684 "1816 FLOGI NPIV supported, "
685 "response data 0x%x\n",
686 sp
->cmn
.response_multiple_NPort
);
687 spin_lock_irq(&phba
->hbalock
);
688 phba
->link_flag
|= LS_NPIV_FAB_SUPPORTED
;
689 spin_unlock_irq(&phba
->hbalock
);
691 /* Because we asked f/w for NPIV it still expects us
692 to call reg_vnpid atleast for the physcial host */
693 lpfc_printf_vlog(vport
, KERN_WARNING
,
695 "1817 Fabric does not support NPIV "
696 "- configuring single port mode.\n");
697 spin_lock_irq(&phba
->hbalock
);
698 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
699 spin_unlock_irq(&phba
->hbalock
);
703 if (fabric_param_changed
&&
704 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
706 /* If our NportID changed, we need to ensure all
707 * remaining NPORTs get unreg_login'ed.
709 list_for_each_entry_safe(np
, next_np
,
710 &vport
->fc_nodes
, nlp_listp
) {
711 if (!NLP_CHK_NODE_ACT(np
))
713 if ((np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
714 !(np
->nlp_flag
& NLP_NPR_ADISC
))
716 spin_lock_irq(shost
->host_lock
);
717 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
718 spin_unlock_irq(shost
->host_lock
);
719 lpfc_unreg_rpi(vport
, np
);
721 lpfc_cleanup_pending_mbox(vport
);
723 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
724 lpfc_sli4_unreg_all_rpis(vport
);
725 lpfc_mbx_unreg_vpi(vport
);
726 spin_lock_irq(shost
->host_lock
);
727 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
728 spin_unlock_irq(shost
->host_lock
);
732 * For SLI3 and SLI4, the VPI needs to be reregistered in
733 * response to this fabric parameter change event.
735 spin_lock_irq(shost
->host_lock
);
736 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
737 spin_unlock_irq(shost
->host_lock
);
738 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
739 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
741 * Driver needs to re-reg VPI in order for f/w
742 * to update the MAC address.
744 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
745 lpfc_register_new_vport(phba
, vport
, ndlp
);
749 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
750 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_REG_LOGIN_ISSUE
);
751 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
&&
752 vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
753 lpfc_register_new_vport(phba
, vport
, ndlp
);
755 lpfc_issue_fabric_reglogin(vport
);
757 ndlp
->nlp_type
|= NLP_FABRIC
;
758 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
759 if ((!(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) &&
760 (vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
761 lpfc_start_fdiscs(phba
);
762 lpfc_do_scr_ns_plogi(phba
, vport
);
763 } else if (vport
->fc_flag
& FC_VFI_REGISTERED
)
764 lpfc_issue_init_vpi(vport
);
766 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
767 "3135 Need register VFI: (x%x/%x)\n",
768 vport
->fc_prevDID
, vport
->fc_myDID
);
769 lpfc_issue_reg_vfi(vport
);
776 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
777 * @vport: pointer to a host virtual N_Port data structure.
778 * @ndlp: pointer to a node-list data structure.
779 * @sp: pointer to service parameter data structure.
781 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
782 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
783 * in a point-to-point topology. First, the @vport's N_Port Name is compared
784 * with the received N_Port Name: if the @vport's N_Port Name is greater than
785 * the received N_Port Name lexicographically, this node shall assign local
786 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
787 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
788 * this node shall just wait for the remote node to issue PLOGI and assign
796 lpfc_cmpl_els_flogi_nport(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
797 struct serv_parm
*sp
)
799 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
800 struct lpfc_hba
*phba
= vport
->phba
;
804 spin_lock_irq(shost
->host_lock
);
805 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
806 spin_unlock_irq(shost
->host_lock
);
808 phba
->fc_edtov
= FF_DEF_EDTOV
;
809 phba
->fc_ratov
= FF_DEF_RATOV
;
810 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
811 sizeof(vport
->fc_portname
));
813 /* This side will initiate the PLOGI */
814 spin_lock_irq(shost
->host_lock
);
815 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
816 spin_unlock_irq(shost
->host_lock
);
819 * N_Port ID cannot be 0, set our to LocalID the other
820 * side will be RemoteID.
825 vport
->fc_myDID
= PT2PT_LocalID
;
827 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
831 lpfc_config_link(phba
, mbox
);
833 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
835 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
836 if (rc
== MBX_NOT_FINISHED
) {
837 mempool_free(mbox
, phba
->mbox_mem_pool
);
842 * For SLI4, the VFI/VPI are registered AFTER the
843 * Nport with the higher WWPN sends the PLOGI with
844 * an assigned NPortId.
848 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && rc
)
849 lpfc_issue_reg_vfi(vport
);
851 /* Decrement ndlp reference count indicating that ndlp can be
852 * safely released when other references to it are done.
856 ndlp
= lpfc_findnode_did(vport
, PT2PT_RemoteID
);
859 * Cannot find existing Fabric ndlp, so allocate a
862 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
865 lpfc_nlp_init(vport
, ndlp
, PT2PT_RemoteID
);
866 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
867 ndlp
= lpfc_enable_node(vport
, ndlp
,
868 NLP_STE_UNUSED_NODE
);
873 memcpy(&ndlp
->nlp_portname
, &sp
->portName
,
874 sizeof(struct lpfc_name
));
875 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
,
876 sizeof(struct lpfc_name
));
877 /* Set state will put ndlp onto node list if not already done */
878 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
879 spin_lock_irq(shost
->host_lock
);
880 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
881 spin_unlock_irq(shost
->host_lock
);
883 /* This side will wait for the PLOGI, decrement ndlp reference
884 * count indicating that ndlp can be released when other
885 * references to it are done.
889 /* If we are pt2pt with another NPort, force NPIV off! */
890 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
892 spin_lock_irq(shost
->host_lock
);
893 vport
->fc_flag
|= FC_PT2PT
;
894 spin_unlock_irq(shost
->host_lock
);
896 /* Start discovery - this should just do CLEAR_LA */
897 lpfc_disc_start(vport
);
904 * lpfc_cmpl_els_flogi - Completion callback function for flogi
905 * @phba: pointer to lpfc hba data structure.
906 * @cmdiocb: pointer to lpfc command iocb data structure.
907 * @rspiocb: pointer to lpfc response iocb data structure.
909 * This routine is the top-level completion callback function for issuing
910 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
911 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
912 * retry has been made (either immediately or delayed with lpfc_els_retry()
913 * returning 1), the command IOCB will be released and function returned.
914 * If the retry attempt has been given up (possibly reach the maximum
915 * number of retries), one additional decrement of ndlp reference shall be
916 * invoked before going out after releasing the command IOCB. This will
917 * actually release the remote node (Note, lpfc_els_free_iocb() will also
918 * invoke one decrement of ndlp reference count). If no error reported in
919 * the IOCB status, the command Port ID field is used to determine whether
920 * this is a point-to-point topology or a fabric topology: if the Port ID
921 * field is assigned, it is a fabric topology; otherwise, it is a
922 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
923 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
924 * specific topology completion conditions.
927 lpfc_cmpl_els_flogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
928 struct lpfc_iocbq
*rspiocb
)
930 struct lpfc_vport
*vport
= cmdiocb
->vport
;
931 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
932 IOCB_t
*irsp
= &rspiocb
->iocb
;
933 struct lpfc_nodelist
*ndlp
= cmdiocb
->context1
;
934 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
935 struct serv_parm
*sp
;
939 /* Check to see if link went down during discovery */
940 if (lpfc_els_chk_latt(vport
)) {
941 /* One additional decrement on node reference count to
942 * trigger the release of the node
948 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
949 "FLOGI cmpl: status:x%x/x%x state:x%x",
950 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
953 if (irsp
->ulpStatus
) {
955 * In case of FIP mode, perform roundrobin FCF failover
956 * due to new FCF discovery
958 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
959 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
)) {
960 if (phba
->link_state
< LPFC_LINK_UP
)
961 goto stop_rr_fcf_flogi
;
962 if ((phba
->fcoe_cvl_eventtag_attn
==
963 phba
->fcoe_cvl_eventtag
) &&
964 (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
965 (irsp
->un
.ulpWord
[4] == IOERR_SLI_ABORTED
))
966 goto stop_rr_fcf_flogi
;
968 phba
->fcoe_cvl_eventtag_attn
=
969 phba
->fcoe_cvl_eventtag
;
970 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
971 "2611 FLOGI failed on FCF (x%x), "
972 "status:x%x/x%x, tmo:x%x, perform "
973 "roundrobin FCF failover\n",
974 phba
->fcf
.current_rec
.fcf_indx
,
975 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
977 lpfc_sli4_set_fcf_flogi_fail(phba
,
978 phba
->fcf
.current_rec
.fcf_indx
);
979 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
980 rc
= lpfc_sli4_fcf_rr_next_proc(vport
, fcf_index
);
987 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
988 "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n",
989 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
992 /* Check for retry */
993 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
997 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
998 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
999 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1002 /* FLOGI failed, so there is no fabric */
1003 spin_lock_irq(shost
->host_lock
);
1004 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1005 spin_unlock_irq(shost
->host_lock
);
1007 /* If private loop, then allow max outstanding els to be
1008 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1009 * alpa map would take too long otherwise.
1011 if (phba
->alpa_map
[0] == 0)
1012 vport
->cfg_discovery_threads
= LPFC_MAX_DISC_THREADS
;
1013 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1014 (!(vport
->fc_flag
& FC_VFI_REGISTERED
) ||
1015 (vport
->fc_prevDID
!= vport
->fc_myDID
))) {
1016 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
1017 lpfc_sli4_unreg_all_rpis(vport
);
1018 lpfc_issue_reg_vfi(vport
);
1024 spin_lock_irq(shost
->host_lock
);
1025 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
1026 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
1027 spin_unlock_irq(shost
->host_lock
);
1030 * The FLogI succeeded. Sync the data for the CPU before
1033 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
1035 sp
= prsp
->virt
+ sizeof(uint32_t);
1037 /* FLOGI completes successfully */
1038 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1039 "0101 FLOGI completes successfully "
1040 "Data: x%x x%x x%x x%x\n",
1041 irsp
->un
.ulpWord
[4], sp
->cmn
.e_d_tov
,
1042 sp
->cmn
.w2
.r_a_tov
, sp
->cmn
.edtovResolution
);
1044 if (vport
->port_state
== LPFC_FLOGI
) {
1046 * If Common Service Parameters indicate Nport
1047 * we are point to point, if Fport we are Fabric.
1050 rc
= lpfc_cmpl_els_flogi_fabric(vport
, ndlp
, sp
, irsp
);
1051 else if (!(phba
->hba_flag
& HBA_FCOE_MODE
))
1052 rc
= lpfc_cmpl_els_flogi_nport(vport
, ndlp
, sp
);
1054 lpfc_printf_vlog(vport
, KERN_ERR
,
1056 "2831 FLOGI response with cleared Fabric "
1057 "bit fcf_index 0x%x "
1058 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1060 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1061 phba
->fcf
.current_rec
.fcf_indx
,
1062 phba
->fcf
.current_rec
.switch_name
[0],
1063 phba
->fcf
.current_rec
.switch_name
[1],
1064 phba
->fcf
.current_rec
.switch_name
[2],
1065 phba
->fcf
.current_rec
.switch_name
[3],
1066 phba
->fcf
.current_rec
.switch_name
[4],
1067 phba
->fcf
.current_rec
.switch_name
[5],
1068 phba
->fcf
.current_rec
.switch_name
[6],
1069 phba
->fcf
.current_rec
.switch_name
[7],
1070 phba
->fcf
.current_rec
.fabric_name
[0],
1071 phba
->fcf
.current_rec
.fabric_name
[1],
1072 phba
->fcf
.current_rec
.fabric_name
[2],
1073 phba
->fcf
.current_rec
.fabric_name
[3],
1074 phba
->fcf
.current_rec
.fabric_name
[4],
1075 phba
->fcf
.current_rec
.fabric_name
[5],
1076 phba
->fcf
.current_rec
.fabric_name
[6],
1077 phba
->fcf
.current_rec
.fabric_name
[7]);
1079 spin_lock_irq(&phba
->hbalock
);
1080 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1081 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1082 spin_unlock_irq(&phba
->hbalock
);
1086 /* Mark the FCF discovery process done */
1087 if (phba
->hba_flag
& HBA_FIP_SUPPORT
)
1088 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_FIP
|
1090 "2769 FLOGI to FCF (x%x) "
1091 "completed successfully\n",
1092 phba
->fcf
.current_rec
.fcf_indx
);
1093 spin_lock_irq(&phba
->hbalock
);
1094 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
1095 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
1096 spin_unlock_irq(&phba
->hbalock
);
1104 if (!lpfc_error_lost_link(irsp
)) {
1105 /* FLOGI failed, so just use loop map to make discovery list */
1106 lpfc_disc_list_loopmap(vport
);
1108 /* Start discovery */
1109 lpfc_disc_start(vport
);
1110 } else if (((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
1111 ((irsp
->un
.ulpWord
[4] != IOERR_SLI_ABORTED
) &&
1112 (irsp
->un
.ulpWord
[4] != IOERR_SLI_DOWN
))) &&
1113 (phba
->link_state
!= LPFC_CLEAR_LA
)) {
1114 /* If FLOGI failed enable link interrupt. */
1115 lpfc_issue_clear_la(phba
, vport
);
1118 lpfc_els_free_iocb(phba
, cmdiocb
);
1122 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1123 * @vport: pointer to a host virtual N_Port data structure.
1124 * @ndlp: pointer to a node-list data structure.
1125 * @retry: number of retries to the command IOCB.
1127 * This routine issues a Fabric Login (FLOGI) Request ELS command
1128 * for a @vport. The initiator service parameters are put into the payload
1129 * of the FLOGI Request IOCB and the top-level callback function pointer
1130 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1131 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1132 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1134 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1135 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1136 * will be stored into the context1 field of the IOCB for the completion
1137 * callback function to the FLOGI ELS command.
1140 * 0 - successfully issued flogi iocb for @vport
1141 * 1 - failed to issue flogi iocb for @vport
1144 lpfc_issue_els_flogi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1147 struct lpfc_hba
*phba
= vport
->phba
;
1148 struct serv_parm
*sp
;
1150 struct lpfc_iocbq
*elsiocb
;
1151 struct lpfc_sli_ring
*pring
;
1157 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1159 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1160 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1161 ndlp
->nlp_DID
, ELS_CMD_FLOGI
);
1166 icmd
= &elsiocb
->iocb
;
1167 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1169 /* For FLOGI request, remainder of payload is service parameters */
1170 *((uint32_t *) (pcmd
)) = ELS_CMD_FLOGI
;
1171 pcmd
+= sizeof(uint32_t);
1172 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1173 sp
= (struct serv_parm
*) pcmd
;
1175 /* Setup CSPs accordingly for Fabric */
1176 sp
->cmn
.e_d_tov
= 0;
1177 sp
->cmn
.w2
.r_a_tov
= 0;
1178 sp
->cmn
.virtual_fabric_support
= 0;
1179 sp
->cls1
.classValid
= 0;
1180 sp
->cls2
.seqDelivery
= 1;
1181 sp
->cls3
.seqDelivery
= 1;
1182 if (sp
->cmn
.fcphLow
< FC_PH3
)
1183 sp
->cmn
.fcphLow
= FC_PH3
;
1184 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1185 sp
->cmn
.fcphHigh
= FC_PH3
;
1187 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1188 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
1189 LPFC_SLI_INTF_IF_TYPE_0
) {
1190 elsiocb
->iocb
.ulpCt_h
= ((SLI4_CT_FCFI
>> 1) & 1);
1191 elsiocb
->iocb
.ulpCt_l
= (SLI4_CT_FCFI
& 1);
1192 /* FLOGI needs to be 3 for WQE FCFI */
1193 /* Set the fcfi to the fcfi we registered with */
1194 elsiocb
->iocb
.ulpContext
= phba
->fcf
.fcfi
;
1197 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1198 sp
->cmn
.request_multiple_Nport
= 1;
1199 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1203 sp
->cmn
.request_multiple_Nport
= 0;
1206 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
1207 icmd
->un
.elsreq64
.myID
= 0;
1208 icmd
->un
.elsreq64
.fl
= 1;
1211 tmo
= phba
->fc_ratov
;
1212 phba
->fc_ratov
= LPFC_DISC_FLOGI_TMO
;
1213 lpfc_set_disctmo(vport
);
1214 phba
->fc_ratov
= tmo
;
1216 phba
->fc_stat
.elsXmitFLOGI
++;
1217 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_flogi
;
1219 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1220 "Issue FLOGI: opt:x%x",
1221 phba
->sli3_options
, 0, 0);
1223 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
1224 if (rc
== IOCB_ERROR
) {
1225 lpfc_els_free_iocb(phba
, elsiocb
);
1232 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1233 * @phba: pointer to lpfc hba data structure.
1235 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1236 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1237 * list and issues an abort IOCB commond on each outstanding IOCB that
1238 * contains a active Fabric_DID ndlp. Note that this function is to issue
1239 * the abort IOCB command on all the outstanding IOCBs, thus when this
1240 * function returns, it does not guarantee all the IOCBs are actually aborted.
1243 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1246 lpfc_els_abort_flogi(struct lpfc_hba
*phba
)
1248 struct lpfc_sli_ring
*pring
;
1249 struct lpfc_iocbq
*iocb
, *next_iocb
;
1250 struct lpfc_nodelist
*ndlp
;
1253 /* Abort outstanding I/O on NPort <nlp_DID> */
1254 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1255 "0201 Abort outstanding I/O on NPort x%x\n",
1258 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1261 * Check the txcmplq for an iocb that matches the nport the driver is
1264 spin_lock_irq(&phba
->hbalock
);
1265 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
1267 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) {
1268 ndlp
= (struct lpfc_nodelist
*)(iocb
->context1
);
1269 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
1270 (ndlp
->nlp_DID
== Fabric_DID
))
1271 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
1274 spin_unlock_irq(&phba
->hbalock
);
1280 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1281 * @vport: pointer to a host virtual N_Port data structure.
1283 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1284 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1285 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1286 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1287 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1288 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1292 * 0 - failed to issue initial flogi for @vport
1293 * 1 - successfully issued initial flogi for @vport
1296 lpfc_initial_flogi(struct lpfc_vport
*vport
)
1298 struct lpfc_hba
*phba
= vport
->phba
;
1299 struct lpfc_nodelist
*ndlp
;
1301 vport
->port_state
= LPFC_FLOGI
;
1302 lpfc_set_disctmo(vport
);
1304 /* First look for the Fabric ndlp */
1305 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1307 /* Cannot find existing Fabric ndlp, so allocate a new one */
1308 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1311 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1312 /* Set the node type */
1313 ndlp
->nlp_type
|= NLP_FABRIC
;
1314 /* Put ndlp onto node list */
1315 lpfc_enqueue_node(vport
, ndlp
);
1316 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1317 /* re-setup ndlp without removing from node list */
1318 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1323 if (lpfc_issue_els_flogi(vport
, ndlp
, 0)) {
1324 /* This decrement of reference count to node shall kick off
1325 * the release of the node.
1334 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1335 * @vport: pointer to a host virtual N_Port data structure.
1337 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1338 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1339 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1340 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1341 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1342 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1346 * 0 - failed to issue initial fdisc for @vport
1347 * 1 - successfully issued initial fdisc for @vport
1350 lpfc_initial_fdisc(struct lpfc_vport
*vport
)
1352 struct lpfc_hba
*phba
= vport
->phba
;
1353 struct lpfc_nodelist
*ndlp
;
1355 /* First look for the Fabric ndlp */
1356 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1358 /* Cannot find existing Fabric ndlp, so allocate a new one */
1359 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1362 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1363 /* Put ndlp onto node list */
1364 lpfc_enqueue_node(vport
, ndlp
);
1365 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1366 /* re-setup ndlp without removing from node list */
1367 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1372 if (lpfc_issue_els_fdisc(vport
, ndlp
, 0)) {
1373 /* decrement node reference count to trigger the release of
1383 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1384 * @vport: pointer to a host virtual N_Port data structure.
1386 * This routine checks whether there are more remaining Port Logins
1387 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1388 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1389 * to issue ELS PLOGIs up to the configured discover threads with the
1390 * @vport (@vport->cfg_discovery_threads). The function also decrement
1391 * the @vport's num_disc_node by 1 if it is not already 0.
1394 lpfc_more_plogi(struct lpfc_vport
*vport
)
1398 if (vport
->num_disc_nodes
)
1399 vport
->num_disc_nodes
--;
1401 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1402 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1403 "0232 Continue discovery with %d PLOGIs to go "
1404 "Data: x%x x%x x%x\n",
1405 vport
->num_disc_nodes
, vport
->fc_plogi_cnt
,
1406 vport
->fc_flag
, vport
->port_state
);
1407 /* Check to see if there are more PLOGIs to be sent */
1408 if (vport
->fc_flag
& FC_NLP_MORE
)
1409 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1410 sentplogi
= lpfc_els_disc_plogi(vport
);
1416 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1417 * @phba: pointer to lpfc hba data structure.
1418 * @prsp: pointer to response IOCB payload.
1419 * @ndlp: pointer to a node-list data structure.
1421 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1422 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1423 * The following cases are considered N_Port confirmed:
1424 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1425 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1426 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1427 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1428 * 1) if there is a node on vport list other than the @ndlp with the same
1429 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1430 * on that node to release the RPI associated with the node; 2) if there is
1431 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1432 * into, a new node shall be allocated (or activated). In either case, the
1433 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1434 * be released and the new_ndlp shall be put on to the vport node list and
1435 * its pointer returned as the confirmed node.
1437 * Note that before the @ndlp got "released", the keepDID from not-matching
1438 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1439 * of the @ndlp. This is because the release of @ndlp is actually to put it
1440 * into an inactive state on the vport node list and the vport node list
1441 * management algorithm does not allow two node with a same DID.
1444 * pointer to the PLOGI N_Port @ndlp
1446 static struct lpfc_nodelist
*
1447 lpfc_plogi_confirm_nport(struct lpfc_hba
*phba
, uint32_t *prsp
,
1448 struct lpfc_nodelist
*ndlp
)
1450 struct lpfc_vport
*vport
= ndlp
->vport
;
1451 struct lpfc_nodelist
*new_ndlp
;
1452 struct lpfc_rport_data
*rdata
;
1453 struct fc_rport
*rport
;
1454 struct serv_parm
*sp
;
1455 uint8_t name
[sizeof(struct lpfc_name
)];
1456 uint32_t rc
, keepDID
= 0;
1459 struct lpfc_node_rrqs rrq
;
1461 /* Fabric nodes can have the same WWPN so we don't bother searching
1462 * by WWPN. Just return the ndlp that was given to us.
1464 if (ndlp
->nlp_type
& NLP_FABRIC
)
1467 sp
= (struct serv_parm
*) ((uint8_t *) prsp
+ sizeof(uint32_t));
1468 memset(name
, 0, sizeof(struct lpfc_name
));
1470 /* Now we find out if the NPort we are logging into, matches the WWPN
1471 * we have for that ndlp. If not, we have some work to do.
1473 new_ndlp
= lpfc_findnode_wwpn(vport
, &sp
->portName
);
1475 if (new_ndlp
== ndlp
&& NLP_CHK_NODE_ACT(new_ndlp
))
1477 memset(&rrq
.xri_bitmap
, 0, sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1479 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1480 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1481 ndlp
, ndlp
->nlp_DID
, new_ndlp
);
1484 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1485 sizeof(struct lpfc_name
));
1488 new_ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_ATOMIC
);
1491 lpfc_nlp_init(vport
, new_ndlp
, ndlp
->nlp_DID
);
1492 } else if (!NLP_CHK_NODE_ACT(new_ndlp
)) {
1493 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1494 sizeof(struct lpfc_name
));
1497 new_ndlp
= lpfc_enable_node(vport
, new_ndlp
,
1498 NLP_STE_UNUSED_NODE
);
1501 keepDID
= new_ndlp
->nlp_DID
;
1502 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1503 memcpy(&rrq
.xri_bitmap
,
1504 &new_ndlp
->active_rrqs
.xri_bitmap
,
1505 sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1507 keepDID
= new_ndlp
->nlp_DID
;
1508 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1509 memcpy(&rrq
.xri_bitmap
,
1510 &new_ndlp
->active_rrqs
.xri_bitmap
,
1511 sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1514 lpfc_unreg_rpi(vport
, new_ndlp
);
1515 new_ndlp
->nlp_DID
= ndlp
->nlp_DID
;
1516 new_ndlp
->nlp_prev_state
= ndlp
->nlp_prev_state
;
1517 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1518 memcpy(new_ndlp
->active_rrqs
.xri_bitmap
,
1519 &ndlp
->active_rrqs
.xri_bitmap
,
1520 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1522 if (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
)
1523 new_ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1524 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1526 /* Set state will put new_ndlp on to node list if not already done */
1527 lpfc_nlp_set_state(vport
, new_ndlp
, ndlp
->nlp_state
);
1529 /* Move this back to NPR state */
1530 if (memcmp(&ndlp
->nlp_portname
, name
, sizeof(struct lpfc_name
)) == 0) {
1531 /* The new_ndlp is replacing ndlp totally, so we need
1532 * to put ndlp on UNUSED list and try to free it.
1534 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1535 "3179 PLOGI confirm NEW: %x %x\n",
1536 new_ndlp
->nlp_DID
, keepDID
);
1538 /* Fix up the rport accordingly */
1539 rport
= ndlp
->rport
;
1541 rdata
= rport
->dd_data
;
1542 if (rdata
->pnode
== ndlp
) {
1545 rdata
->pnode
= lpfc_nlp_get(new_ndlp
);
1546 new_ndlp
->rport
= rport
;
1548 new_ndlp
->nlp_type
= ndlp
->nlp_type
;
1550 /* We shall actually free the ndlp with both nlp_DID and
1551 * nlp_portname fields equals 0 to avoid any ndlp on the
1552 * nodelist never to be used.
1554 if (ndlp
->nlp_DID
== 0) {
1555 spin_lock_irq(&phba
->ndlp_lock
);
1556 NLP_SET_FREE_REQ(ndlp
);
1557 spin_unlock_irq(&phba
->ndlp_lock
);
1560 /* Two ndlps cannot have the same did on the nodelist */
1561 ndlp
->nlp_DID
= keepDID
;
1562 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1563 memcpy(&ndlp
->active_rrqs
.xri_bitmap
,
1565 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1566 lpfc_drop_node(vport
, ndlp
);
1569 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1570 "3180 PLOGI confirm SWAP: %x %x\n",
1571 new_ndlp
->nlp_DID
, keepDID
);
1573 lpfc_unreg_rpi(vport
, ndlp
);
1575 /* Two ndlps cannot have the same did */
1576 ndlp
->nlp_DID
= keepDID
;
1577 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1578 memcpy(&ndlp
->active_rrqs
.xri_bitmap
,
1580 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1582 /* Since we are swapping the ndlp passed in with the new one
1583 * and the did has already been swapped, copy over state.
1584 * The new WWNs are already in new_ndlp since thats what
1585 * we looked it up by in the begining of this routine.
1587 new_ndlp
->nlp_state
= ndlp
->nlp_state
;
1589 /* Since we are switching over to the new_ndlp, the old
1590 * ndlp should be put in the NPR state, unless we have
1591 * already started re-discovery on it.
1593 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
1594 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
1595 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
1597 /* Fix up the rport accordingly */
1598 rport
= ndlp
->rport
;
1600 rdata
= rport
->dd_data
;
1601 put_node
= rdata
->pnode
!= NULL
;
1602 put_rport
= ndlp
->rport
!= NULL
;
1603 rdata
->pnode
= NULL
;
1608 put_device(&rport
->dev
);
1615 * lpfc_end_rscn - Check and handle more rscn for a vport
1616 * @vport: pointer to a host virtual N_Port data structure.
1618 * This routine checks whether more Registration State Change
1619 * Notifications (RSCNs) came in while the discovery state machine was in
1620 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1621 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1622 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1623 * handling the RSCNs.
1626 lpfc_end_rscn(struct lpfc_vport
*vport
)
1628 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1630 if (vport
->fc_flag
& FC_RSCN_MODE
) {
1632 * Check to see if more RSCNs came in while we were
1633 * processing this one.
1635 if (vport
->fc_rscn_id_cnt
||
1636 (vport
->fc_flag
& FC_RSCN_DISCOVERY
) != 0)
1637 lpfc_els_handle_rscn(vport
);
1639 spin_lock_irq(shost
->host_lock
);
1640 vport
->fc_flag
&= ~FC_RSCN_MODE
;
1641 spin_unlock_irq(shost
->host_lock
);
1647 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1648 * @phba: pointer to lpfc hba data structure.
1649 * @cmdiocb: pointer to lpfc command iocb data structure.
1650 * @rspiocb: pointer to lpfc response iocb data structure.
1652 * This routine will call the clear rrq function to free the rrq and
1653 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1654 * exist then the clear_rrq is still called because the rrq needs to
1659 lpfc_cmpl_els_rrq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1660 struct lpfc_iocbq
*rspiocb
)
1662 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1664 struct lpfc_nodelist
*ndlp
;
1665 struct lpfc_node_rrq
*rrq
;
1667 /* we pass cmdiocb to state machine which needs rspiocb as well */
1668 rrq
= cmdiocb
->context_un
.rrq
;
1669 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1671 irsp
= &rspiocb
->iocb
;
1672 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1673 "RRQ cmpl: status:x%x/x%x did:x%x",
1674 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1675 irsp
->un
.elsreq64
.remoteID
);
1677 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1678 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || ndlp
!= rrq
->ndlp
) {
1679 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1680 "2882 RRQ completes to NPort x%x "
1681 "with no ndlp. Data: x%x x%x x%x\n",
1682 irsp
->un
.elsreq64
.remoteID
,
1683 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1688 /* rrq completes to NPort <nlp_DID> */
1689 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1690 "2880 RRQ completes to NPort x%x "
1691 "Data: x%x x%x x%x x%x x%x\n",
1692 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1693 irsp
->ulpTimeout
, rrq
->xritag
, rrq
->rxid
);
1695 if (irsp
->ulpStatus
) {
1696 /* Check for retry */
1697 /* RRQ failed Don't print the vport to vport rjts */
1698 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1699 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1700 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1701 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1702 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1703 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1704 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1705 irsp
->un
.ulpWord
[4]);
1709 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
1710 lpfc_els_free_iocb(phba
, cmdiocb
);
1714 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1715 * @phba: pointer to lpfc hba data structure.
1716 * @cmdiocb: pointer to lpfc command iocb data structure.
1717 * @rspiocb: pointer to lpfc response iocb data structure.
1719 * This routine is the completion callback function for issuing the Port
1720 * Login (PLOGI) command. For PLOGI completion, there must be an active
1721 * ndlp on the vport node list that matches the remote node ID from the
1722 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1723 * ignored and command IOCB released. The PLOGI response IOCB status is
1724 * checked for error conditons. If there is error status reported, PLOGI
1725 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1726 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1727 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1728 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1729 * there are additional N_Port nodes with the vport that need to perform
1730 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1734 lpfc_cmpl_els_plogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1735 struct lpfc_iocbq
*rspiocb
)
1737 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1738 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1740 struct lpfc_nodelist
*ndlp
;
1741 struct lpfc_dmabuf
*prsp
;
1742 int disc
, rc
, did
, type
;
1744 /* we pass cmdiocb to state machine which needs rspiocb as well */
1745 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1747 irsp
= &rspiocb
->iocb
;
1748 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1749 "PLOGI cmpl: status:x%x/x%x did:x%x",
1750 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1751 irsp
->un
.elsreq64
.remoteID
);
1753 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1754 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
1755 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1756 "0136 PLOGI completes to NPort x%x "
1757 "with no ndlp. Data: x%x x%x x%x\n",
1758 irsp
->un
.elsreq64
.remoteID
,
1759 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1764 /* Since ndlp can be freed in the disc state machine, note if this node
1765 * is being used during discovery.
1767 spin_lock_irq(shost
->host_lock
);
1768 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
1769 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1770 spin_unlock_irq(shost
->host_lock
);
1773 /* PLOGI completes to NPort <nlp_DID> */
1774 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1775 "0102 PLOGI completes to NPort x%x "
1776 "Data: x%x x%x x%x x%x x%x\n",
1777 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1778 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
1779 /* Check to see if link went down during discovery */
1780 if (lpfc_els_chk_latt(vport
)) {
1781 spin_lock_irq(shost
->host_lock
);
1782 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1783 spin_unlock_irq(shost
->host_lock
);
1787 /* ndlp could be freed in DSM, save these values now */
1788 type
= ndlp
->nlp_type
;
1789 did
= ndlp
->nlp_DID
;
1791 if (irsp
->ulpStatus
) {
1792 /* Check for retry */
1793 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1794 /* ELS command is being retried */
1796 spin_lock_irq(shost
->host_lock
);
1797 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1798 spin_unlock_irq(shost
->host_lock
);
1802 /* PLOGI failed Don't print the vport to vport rjts */
1803 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1804 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1805 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1806 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1807 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1808 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1809 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1810 irsp
->un
.ulpWord
[4]);
1811 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1812 if (lpfc_error_lost_link(irsp
))
1813 rc
= NLP_STE_FREED_NODE
;
1815 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1816 NLP_EVT_CMPL_PLOGI
);
1818 /* Good status, call state machine */
1819 prsp
= list_entry(((struct lpfc_dmabuf
*)
1820 cmdiocb
->context2
)->list
.next
,
1821 struct lpfc_dmabuf
, list
);
1822 ndlp
= lpfc_plogi_confirm_nport(phba
, prsp
->virt
, ndlp
);
1823 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1824 NLP_EVT_CMPL_PLOGI
);
1827 if (disc
&& vport
->num_disc_nodes
) {
1828 /* Check to see if there are more PLOGIs to be sent */
1829 lpfc_more_plogi(vport
);
1831 if (vport
->num_disc_nodes
== 0) {
1832 spin_lock_irq(shost
->host_lock
);
1833 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1834 spin_unlock_irq(shost
->host_lock
);
1836 lpfc_can_disctmo(vport
);
1837 lpfc_end_rscn(vport
);
1842 lpfc_els_free_iocb(phba
, cmdiocb
);
1847 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1848 * @vport: pointer to a host virtual N_Port data structure.
1849 * @did: destination port identifier.
1850 * @retry: number of retries to the command IOCB.
1852 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1853 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1854 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1855 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1856 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1858 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1859 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1860 * will be stored into the context1 field of the IOCB for the completion
1861 * callback function to the PLOGI ELS command.
1864 * 0 - Successfully issued a plogi for @vport
1865 * 1 - failed to issue a plogi for @vport
1868 lpfc_issue_els_plogi(struct lpfc_vport
*vport
, uint32_t did
, uint8_t retry
)
1870 struct lpfc_hba
*phba
= vport
->phba
;
1871 struct serv_parm
*sp
;
1873 struct lpfc_nodelist
*ndlp
;
1874 struct lpfc_iocbq
*elsiocb
;
1875 struct lpfc_sli
*psli
;
1882 ndlp
= lpfc_findnode_did(vport
, did
);
1883 if (ndlp
&& !NLP_CHK_NODE_ACT(ndlp
))
1886 /* If ndlp is not NULL, we will bump the reference count on it */
1887 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1888 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
1893 icmd
= &elsiocb
->iocb
;
1894 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1896 /* For PLOGI request, remainder of payload is service parameters */
1897 *((uint32_t *) (pcmd
)) = ELS_CMD_PLOGI
;
1898 pcmd
+= sizeof(uint32_t);
1899 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1900 sp
= (struct serv_parm
*) pcmd
;
1903 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1904 * to device on remote loops work.
1906 if ((vport
->fc_flag
& FC_FABRIC
) && !(vport
->fc_flag
& FC_PUBLIC_LOOP
))
1907 sp
->cmn
.altBbCredit
= 1;
1909 if (sp
->cmn
.fcphLow
< FC_PH_4_3
)
1910 sp
->cmn
.fcphLow
= FC_PH_4_3
;
1912 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1913 sp
->cmn
.fcphHigh
= FC_PH3
;
1915 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1916 "Issue PLOGI: did:x%x",
1919 phba
->fc_stat
.elsXmitPLOGI
++;
1920 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
1921 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
1923 if (ret
== IOCB_ERROR
) {
1924 lpfc_els_free_iocb(phba
, elsiocb
);
1931 * lpfc_cmpl_els_prli - Completion callback function for prli
1932 * @phba: pointer to lpfc hba data structure.
1933 * @cmdiocb: pointer to lpfc command iocb data structure.
1934 * @rspiocb: pointer to lpfc response iocb data structure.
1936 * This routine is the completion callback function for a Process Login
1937 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
1938 * status. If there is error status reported, PRLI retry shall be attempted
1939 * by invoking the lpfc_els_retry() routine. Otherwise, the state
1940 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
1941 * ndlp to mark the PRLI completion.
1944 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1945 struct lpfc_iocbq
*rspiocb
)
1947 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1948 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1950 struct lpfc_sli
*psli
;
1951 struct lpfc_nodelist
*ndlp
;
1954 /* we pass cmdiocb to state machine which needs rspiocb as well */
1955 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1957 irsp
= &(rspiocb
->iocb
);
1958 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
1959 spin_lock_irq(shost
->host_lock
);
1960 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
1961 spin_unlock_irq(shost
->host_lock
);
1963 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1964 "PRLI cmpl: status:x%x/x%x did:x%x",
1965 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1967 /* PRLI completes to NPort <nlp_DID> */
1968 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1969 "0103 PRLI completes to NPort x%x "
1970 "Data: x%x x%x x%x x%x\n",
1971 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1972 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
1974 vport
->fc_prli_sent
--;
1975 /* Check to see if link went down during discovery */
1976 if (lpfc_els_chk_latt(vport
))
1979 if (irsp
->ulpStatus
) {
1980 /* Check for retry */
1981 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1982 /* ELS command is being retried */
1986 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1987 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
1988 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1989 irsp
->un
.ulpWord
[4]);
1990 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1991 if (lpfc_error_lost_link(irsp
))
1994 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1997 /* Good status, call state machine */
1998 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2001 lpfc_els_free_iocb(phba
, cmdiocb
);
2006 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2007 * @vport: pointer to a host virtual N_Port data structure.
2008 * @ndlp: pointer to a node-list data structure.
2009 * @retry: number of retries to the command IOCB.
2011 * This routine issues a Process Login (PRLI) ELS command for the
2012 * @vport. The PRLI service parameters are set up in the payload of the
2013 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2014 * is put to the IOCB completion callback func field before invoking the
2015 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2017 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2018 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2019 * will be stored into the context1 field of the IOCB for the completion
2020 * callback function to the PRLI ELS command.
2023 * 0 - successfully issued prli iocb command for @vport
2024 * 1 - failed to issue prli iocb command for @vport
2027 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2030 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2031 struct lpfc_hba
*phba
= vport
->phba
;
2034 struct lpfc_iocbq
*elsiocb
;
2038 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
2039 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2040 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
2044 icmd
= &elsiocb
->iocb
;
2045 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2047 /* For PRLI request, remainder of payload is service parameters */
2048 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
2049 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
2050 pcmd
+= sizeof(uint32_t);
2052 /* For PRLI, remainder of payload is PRLI parameter page */
2053 npr
= (PRLI
*) pcmd
;
2055 * If our firmware version is 3.20 or later,
2056 * set the following bits for FC-TAPE support.
2058 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
2059 npr
->ConfmComplAllowed
= 1;
2061 npr
->TaskRetryIdReq
= 1;
2063 npr
->estabImagePair
= 1;
2064 npr
->readXferRdyDis
= 1;
2066 /* For FCP support */
2067 npr
->prliType
= PRLI_FCP_TYPE
;
2068 npr
->initiatorFunc
= 1;
2070 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2071 "Issue PRLI: did:x%x",
2072 ndlp
->nlp_DID
, 0, 0);
2074 phba
->fc_stat
.elsXmitPRLI
++;
2075 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
2076 spin_lock_irq(shost
->host_lock
);
2077 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
2078 spin_unlock_irq(shost
->host_lock
);
2079 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2081 spin_lock_irq(shost
->host_lock
);
2082 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
2083 spin_unlock_irq(shost
->host_lock
);
2084 lpfc_els_free_iocb(phba
, elsiocb
);
2087 vport
->fc_prli_sent
++;
2092 * lpfc_rscn_disc - Perform rscn discovery for a vport
2093 * @vport: pointer to a host virtual N_Port data structure.
2095 * This routine performs Registration State Change Notification (RSCN)
2096 * discovery for a @vport. If the @vport's node port recovery count is not
2097 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2098 * the nodes that need recovery. If none of the PLOGI were needed through
2099 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2100 * invoked to check and handle possible more RSCN came in during the period
2101 * of processing the current ones.
2104 lpfc_rscn_disc(struct lpfc_vport
*vport
)
2106 lpfc_can_disctmo(vport
);
2108 /* RSCN discovery */
2109 /* go thru NPR nodes and issue ELS PLOGIs */
2110 if (vport
->fc_npr_cnt
)
2111 if (lpfc_els_disc_plogi(vport
))
2114 lpfc_end_rscn(vport
);
2118 * lpfc_adisc_done - Complete the adisc phase of discovery
2119 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2121 * This function is called when the final ADISC is completed during discovery.
2122 * This function handles clearing link attention or issuing reg_vpi depending
2123 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2125 * This function is called with no locks held.
2128 lpfc_adisc_done(struct lpfc_vport
*vport
)
2130 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2131 struct lpfc_hba
*phba
= vport
->phba
;
2134 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2135 * and continue discovery.
2137 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2138 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2139 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2140 lpfc_issue_reg_vpi(phba
, vport
);
2144 * For SLI2, we need to set port_state to READY
2145 * and continue discovery.
2147 if (vport
->port_state
< LPFC_VPORT_READY
) {
2148 /* If we get here, there is nothing to ADISC */
2149 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
2150 lpfc_issue_clear_la(phba
, vport
);
2151 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2152 vport
->num_disc_nodes
= 0;
2153 /* go thru NPR list, issue ELS PLOGIs */
2154 if (vport
->fc_npr_cnt
)
2155 lpfc_els_disc_plogi(vport
);
2156 if (!vport
->num_disc_nodes
) {
2157 spin_lock_irq(shost
->host_lock
);
2158 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2159 spin_unlock_irq(shost
->host_lock
);
2160 lpfc_can_disctmo(vport
);
2161 lpfc_end_rscn(vport
);
2164 vport
->port_state
= LPFC_VPORT_READY
;
2166 lpfc_rscn_disc(vport
);
2170 * lpfc_more_adisc - Issue more adisc as needed
2171 * @vport: pointer to a host virtual N_Port data structure.
2173 * This routine determines whether there are more ndlps on a @vport
2174 * node list need to have Address Discover (ADISC) issued. If so, it will
2175 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2176 * remaining nodes which need to have ADISC sent.
2179 lpfc_more_adisc(struct lpfc_vport
*vport
)
2183 if (vport
->num_disc_nodes
)
2184 vport
->num_disc_nodes
--;
2185 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2186 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2187 "0210 Continue discovery with %d ADISCs to go "
2188 "Data: x%x x%x x%x\n",
2189 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2190 vport
->fc_flag
, vport
->port_state
);
2191 /* Check to see if there are more ADISCs to be sent */
2192 if (vport
->fc_flag
& FC_NLP_MORE
) {
2193 lpfc_set_disctmo(vport
);
2194 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2195 sentadisc
= lpfc_els_disc_adisc(vport
);
2197 if (!vport
->num_disc_nodes
)
2198 lpfc_adisc_done(vport
);
2203 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2204 * @phba: pointer to lpfc hba data structure.
2205 * @cmdiocb: pointer to lpfc command iocb data structure.
2206 * @rspiocb: pointer to lpfc response iocb data structure.
2208 * This routine is the completion function for issuing the Address Discover
2209 * (ADISC) command. It first checks to see whether link went down during
2210 * the discovery process. If so, the node will be marked as node port
2211 * recovery for issuing discover IOCB by the link attention handler and
2212 * exit. Otherwise, the response status is checked. If error was reported
2213 * in the response status, the ADISC command shall be retried by invoking
2214 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2215 * the response status, the state machine is invoked to set transition
2216 * with respect to NLP_EVT_CMPL_ADISC event.
2219 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2220 struct lpfc_iocbq
*rspiocb
)
2222 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2223 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2225 struct lpfc_nodelist
*ndlp
;
2228 /* we pass cmdiocb to state machine which needs rspiocb as well */
2229 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2231 irsp
= &(rspiocb
->iocb
);
2232 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2234 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2235 "ADISC cmpl: status:x%x/x%x did:x%x",
2236 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2239 /* Since ndlp can be freed in the disc state machine, note if this node
2240 * is being used during discovery.
2242 spin_lock_irq(shost
->host_lock
);
2243 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2244 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2245 spin_unlock_irq(shost
->host_lock
);
2246 /* ADISC completes to NPort <nlp_DID> */
2247 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2248 "0104 ADISC completes to NPort x%x "
2249 "Data: x%x x%x x%x x%x x%x\n",
2250 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2251 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2252 /* Check to see if link went down during discovery */
2253 if (lpfc_els_chk_latt(vport
)) {
2254 spin_lock_irq(shost
->host_lock
);
2255 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2256 spin_unlock_irq(shost
->host_lock
);
2260 if (irsp
->ulpStatus
) {
2261 /* Check for retry */
2262 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2263 /* ELS command is being retried */
2265 spin_lock_irq(shost
->host_lock
);
2266 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2267 spin_unlock_irq(shost
->host_lock
);
2268 lpfc_set_disctmo(vport
);
2273 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2274 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2275 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2276 irsp
->un
.ulpWord
[4]);
2277 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2278 if (!lpfc_error_lost_link(irsp
))
2279 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2280 NLP_EVT_CMPL_ADISC
);
2282 /* Good status, call state machine */
2283 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2284 NLP_EVT_CMPL_ADISC
);
2286 /* Check to see if there are more ADISCs to be sent */
2287 if (disc
&& vport
->num_disc_nodes
)
2288 lpfc_more_adisc(vport
);
2290 lpfc_els_free_iocb(phba
, cmdiocb
);
2295 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2296 * @vport: pointer to a virtual N_Port data structure.
2297 * @ndlp: pointer to a node-list data structure.
2298 * @retry: number of retries to the command IOCB.
2300 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2301 * @vport. It prepares the payload of the ADISC ELS command, updates the
2302 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2303 * to issue the ADISC ELS command.
2305 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2306 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2307 * will be stored into the context1 field of the IOCB for the completion
2308 * callback function to the ADISC ELS command.
2311 * 0 - successfully issued adisc
2312 * 1 - failed to issue adisc
2315 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2318 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2319 struct lpfc_hba
*phba
= vport
->phba
;
2322 struct lpfc_iocbq
*elsiocb
;
2326 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2327 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2328 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2332 icmd
= &elsiocb
->iocb
;
2333 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2335 /* For ADISC request, remainder of payload is service parameters */
2336 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2337 pcmd
+= sizeof(uint32_t);
2339 /* Fill in ADISC payload */
2340 ap
= (ADISC
*) pcmd
;
2341 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2342 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2343 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2344 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2346 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2347 "Issue ADISC: did:x%x",
2348 ndlp
->nlp_DID
, 0, 0);
2350 phba
->fc_stat
.elsXmitADISC
++;
2351 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2352 spin_lock_irq(shost
->host_lock
);
2353 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2354 spin_unlock_irq(shost
->host_lock
);
2355 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2357 spin_lock_irq(shost
->host_lock
);
2358 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2359 spin_unlock_irq(shost
->host_lock
);
2360 lpfc_els_free_iocb(phba
, elsiocb
);
2367 * lpfc_cmpl_els_logo - Completion callback function for logo
2368 * @phba: pointer to lpfc hba data structure.
2369 * @cmdiocb: pointer to lpfc command iocb data structure.
2370 * @rspiocb: pointer to lpfc response iocb data structure.
2372 * This routine is the completion function for issuing the ELS Logout (LOGO)
2373 * command. If no error status was reported from the LOGO response, the
2374 * state machine of the associated ndlp shall be invoked for transition with
2375 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2376 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2379 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2380 struct lpfc_iocbq
*rspiocb
)
2382 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2383 struct lpfc_vport
*vport
= ndlp
->vport
;
2384 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2386 struct lpfc_sli
*psli
;
2387 struct lpfcMboxq
*mbox
;
2388 unsigned long flags
;
2389 uint32_t skip_recovery
= 0;
2392 /* we pass cmdiocb to state machine which needs rspiocb as well */
2393 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2395 irsp
= &(rspiocb
->iocb
);
2396 spin_lock_irq(shost
->host_lock
);
2397 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2398 spin_unlock_irq(shost
->host_lock
);
2400 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2401 "LOGO cmpl: status:x%x/x%x did:x%x",
2402 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2405 /* LOGO completes to NPort <nlp_DID> */
2406 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2407 "0105 LOGO completes to NPort x%x "
2408 "Data: x%x x%x x%x x%x\n",
2409 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2410 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2412 if (lpfc_els_chk_latt(vport
)) {
2417 /* Check to see if link went down during discovery */
2418 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2419 /* NLP_EVT_DEVICE_RM should unregister the RPI
2420 * which should abort all outstanding IOs.
2422 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2428 if (irsp
->ulpStatus
) {
2429 /* Check for retry */
2430 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2431 /* ELS command is being retried */
2436 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2437 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2438 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2439 irsp
->un
.ulpWord
[4]);
2440 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2441 if (lpfc_error_lost_link(irsp
)) {
2447 /* Call state machine. This will unregister the rpi if needed. */
2448 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
, NLP_EVT_CMPL_LOGO
);
2451 lpfc_els_free_iocb(phba
, cmdiocb
);
2452 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2453 if ((vport
->fc_flag
& FC_PT2PT
) &&
2454 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2455 phba
->pport
->fc_myDID
= 0;
2456 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2458 lpfc_config_link(phba
, mbox
);
2459 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2460 mbox
->vport
= vport
;
2461 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2463 mempool_free(mbox
, phba
->mbox_mem_pool
);
2470 * If the node is a target, the handling attempts to recover the port.
2471 * For any other port type, the rpi is unregistered as an implicit
2474 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) && (skip_recovery
== 0)) {
2475 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2476 spin_lock_irqsave(shost
->host_lock
, flags
);
2477 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2478 spin_unlock_irqrestore(shost
->host_lock
, flags
);
2480 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2481 "3187 LOGO completes to NPort x%x: Start "
2482 "Recovery Data: x%x x%x x%x x%x\n",
2483 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2484 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
,
2485 vport
->num_disc_nodes
);
2486 lpfc_disc_start(vport
);
2492 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2493 * @vport: pointer to a virtual N_Port data structure.
2494 * @ndlp: pointer to a node-list data structure.
2495 * @retry: number of retries to the command IOCB.
2497 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2498 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2499 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2500 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2502 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2503 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2504 * will be stored into the context1 field of the IOCB for the completion
2505 * callback function to the LOGO ELS command.
2508 * 0 - successfully issued logo
2509 * 1 - failed to issue logo
2512 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2515 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2516 struct lpfc_hba
*phba
= vport
->phba
;
2518 struct lpfc_iocbq
*elsiocb
;
2523 spin_lock_irq(shost
->host_lock
);
2524 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2525 spin_unlock_irq(shost
->host_lock
);
2528 spin_unlock_irq(shost
->host_lock
);
2530 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2531 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2532 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2536 icmd
= &elsiocb
->iocb
;
2537 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2538 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2539 pcmd
+= sizeof(uint32_t);
2541 /* Fill in LOGO payload */
2542 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2543 pcmd
+= sizeof(uint32_t);
2544 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2546 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2547 "Issue LOGO: did:x%x",
2548 ndlp
->nlp_DID
, 0, 0);
2551 * If we are issuing a LOGO, we may try to recover the remote NPort
2552 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2553 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2554 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2555 * for that ELS cmd. To avoid this situation, lets get rid of the
2556 * RPI right now, before any ELS cmds are sent.
2558 spin_lock_irq(shost
->host_lock
);
2559 ndlp
->nlp_flag
|= NLP_ISSUE_LOGO
;
2560 spin_unlock_irq(shost
->host_lock
);
2561 if (lpfc_unreg_rpi(vport
, ndlp
)) {
2562 lpfc_els_free_iocb(phba
, elsiocb
);
2566 phba
->fc_stat
.elsXmitLOGO
++;
2567 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2568 spin_lock_irq(shost
->host_lock
);
2569 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2570 ndlp
->nlp_flag
&= ~NLP_ISSUE_LOGO
;
2571 spin_unlock_irq(shost
->host_lock
);
2572 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2574 if (rc
== IOCB_ERROR
) {
2575 spin_lock_irq(shost
->host_lock
);
2576 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2577 spin_unlock_irq(shost
->host_lock
);
2578 lpfc_els_free_iocb(phba
, elsiocb
);
2585 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2586 * @phba: pointer to lpfc hba data structure.
2587 * @cmdiocb: pointer to lpfc command iocb data structure.
2588 * @rspiocb: pointer to lpfc response iocb data structure.
2590 * This routine is a generic completion callback function for ELS commands.
2591 * Specifically, it is the callback function which does not need to perform
2592 * any command specific operations. It is currently used by the ELS command
2593 * issuing routines for the ELS State Change Request (SCR),
2594 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2595 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2596 * certain debug loggings, this callback function simply invokes the
2597 * lpfc_els_chk_latt() routine to check whether link went down during the
2598 * discovery process.
2601 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2602 struct lpfc_iocbq
*rspiocb
)
2604 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2607 irsp
= &rspiocb
->iocb
;
2609 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2610 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2611 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2612 irsp
->un
.elsreq64
.remoteID
);
2613 /* ELS cmd tag <ulpIoTag> completes */
2614 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2615 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2616 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2617 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2618 /* Check to see if link went down during discovery */
2619 lpfc_els_chk_latt(vport
);
2620 lpfc_els_free_iocb(phba
, cmdiocb
);
2625 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2626 * @vport: pointer to a host virtual N_Port data structure.
2627 * @nportid: N_Port identifier to the remote node.
2628 * @retry: number of retries to the command IOCB.
2630 * This routine issues a State Change Request (SCR) to a fabric node
2631 * on a @vport. The remote node @nportid is passed into the function. It
2632 * first search the @vport node list to find the matching ndlp. If no such
2633 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2634 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2635 * routine is invoked to send the SCR IOCB.
2637 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2638 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2639 * will be stored into the context1 field of the IOCB for the completion
2640 * callback function to the SCR ELS command.
2643 * 0 - Successfully issued scr command
2644 * 1 - Failed to issue scr command
2647 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2649 struct lpfc_hba
*phba
= vport
->phba
;
2651 struct lpfc_iocbq
*elsiocb
;
2652 struct lpfc_sli
*psli
;
2655 struct lpfc_nodelist
*ndlp
;
2658 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2660 ndlp
= lpfc_findnode_did(vport
, nportid
);
2662 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2665 lpfc_nlp_init(vport
, ndlp
, nportid
);
2666 lpfc_enqueue_node(vport
, ndlp
);
2667 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2668 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2673 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2674 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2677 /* This will trigger the release of the node just
2684 icmd
= &elsiocb
->iocb
;
2685 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2687 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2688 pcmd
+= sizeof(uint32_t);
2690 /* For SCR, remainder of payload is SCR parameter page */
2691 memset(pcmd
, 0, sizeof(SCR
));
2692 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2694 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2695 "Issue SCR: did:x%x",
2696 ndlp
->nlp_DID
, 0, 0);
2698 phba
->fc_stat
.elsXmitSCR
++;
2699 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2700 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2702 /* The additional lpfc_nlp_put will cause the following
2703 * lpfc_els_free_iocb routine to trigger the rlease of
2707 lpfc_els_free_iocb(phba
, elsiocb
);
2710 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2711 * trigger the release of node.
2718 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2719 * @vport: pointer to a host virtual N_Port data structure.
2720 * @nportid: N_Port identifier to the remote node.
2721 * @retry: number of retries to the command IOCB.
2723 * This routine issues a Fibre Channel Address Resolution Response
2724 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2725 * is passed into the function. It first search the @vport node list to find
2726 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2727 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2728 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2730 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2731 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2732 * will be stored into the context1 field of the IOCB for the completion
2733 * callback function to the PARPR ELS command.
2736 * 0 - Successfully issued farpr command
2737 * 1 - Failed to issue farpr command
2740 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2742 struct lpfc_hba
*phba
= vport
->phba
;
2744 struct lpfc_iocbq
*elsiocb
;
2745 struct lpfc_sli
*psli
;
2750 struct lpfc_nodelist
*ondlp
;
2751 struct lpfc_nodelist
*ndlp
;
2754 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2756 ndlp
= lpfc_findnode_did(vport
, nportid
);
2758 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2761 lpfc_nlp_init(vport
, ndlp
, nportid
);
2762 lpfc_enqueue_node(vport
, ndlp
);
2763 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2764 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2769 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2770 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2772 /* This will trigger the release of the node just
2779 icmd
= &elsiocb
->iocb
;
2780 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2782 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2783 pcmd
+= sizeof(uint32_t);
2785 /* Fill in FARPR payload */
2786 fp
= (FARP
*) (pcmd
);
2787 memset(fp
, 0, sizeof(FARP
));
2788 lp
= (uint32_t *) pcmd
;
2789 *lp
++ = be32_to_cpu(nportid
);
2790 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2792 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2794 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2795 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2796 ondlp
= lpfc_findnode_did(vport
, nportid
);
2797 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2798 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2799 sizeof(struct lpfc_name
));
2800 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2801 sizeof(struct lpfc_name
));
2804 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2805 "Issue FARPR: did:x%x",
2806 ndlp
->nlp_DID
, 0, 0);
2808 phba
->fc_stat
.elsXmitFARPR
++;
2809 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2810 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2812 /* The additional lpfc_nlp_put will cause the following
2813 * lpfc_els_free_iocb routine to trigger the release of
2817 lpfc_els_free_iocb(phba
, elsiocb
);
2820 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2821 * trigger the release of the node.
2828 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2829 * @vport: pointer to a host virtual N_Port data structure.
2830 * @nlp: pointer to a node-list data structure.
2832 * This routine cancels the timer with a delayed IOCB-command retry for
2833 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2834 * removes the ELS retry event if it presents. In addition, if the
2835 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2836 * commands are sent for the @vport's nodes that require issuing discovery
2840 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2842 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2843 struct lpfc_work_evt
*evtp
;
2845 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2847 spin_lock_irq(shost
->host_lock
);
2848 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2849 spin_unlock_irq(shost
->host_lock
);
2850 del_timer_sync(&nlp
->nlp_delayfunc
);
2851 nlp
->nlp_last_elscmd
= 0;
2852 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2853 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2854 /* Decrement nlp reference count held for the delayed retry */
2855 evtp
= &nlp
->els_retry_evt
;
2856 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2858 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2859 spin_lock_irq(shost
->host_lock
);
2860 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2861 spin_unlock_irq(shost
->host_lock
);
2862 if (vport
->num_disc_nodes
) {
2863 if (vport
->port_state
< LPFC_VPORT_READY
) {
2864 /* Check if there are more ADISCs to be sent */
2865 lpfc_more_adisc(vport
);
2867 /* Check if there are more PLOGIs to be sent */
2868 lpfc_more_plogi(vport
);
2869 if (vport
->num_disc_nodes
== 0) {
2870 spin_lock_irq(shost
->host_lock
);
2871 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2872 spin_unlock_irq(shost
->host_lock
);
2873 lpfc_can_disctmo(vport
);
2874 lpfc_end_rscn(vport
);
2883 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2884 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2886 * This routine is invoked by the ndlp delayed-function timer to check
2887 * whether there is any pending ELS retry event(s) with the node. If not, it
2888 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2889 * adds the delayed events to the HBA work list and invokes the
2890 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2891 * event. Note that lpfc_nlp_get() is called before posting the event to
2892 * the work list to hold reference count of ndlp so that it guarantees the
2893 * reference to ndlp will still be available when the worker thread gets
2894 * to the event associated with the ndlp.
2897 lpfc_els_retry_delay(unsigned long ptr
)
2899 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2900 struct lpfc_vport
*vport
= ndlp
->vport
;
2901 struct lpfc_hba
*phba
= vport
->phba
;
2902 unsigned long flags
;
2903 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
2905 spin_lock_irqsave(&phba
->hbalock
, flags
);
2906 if (!list_empty(&evtp
->evt_listp
)) {
2907 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2911 /* We need to hold the node by incrementing the reference
2912 * count until the queued work is done
2914 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
2915 if (evtp
->evt_arg1
) {
2916 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
2917 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2918 lpfc_worker_wake_up(phba
);
2920 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2925 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
2926 * @ndlp: pointer to a node-list data structure.
2928 * This routine is the worker-thread handler for processing the @ndlp delayed
2929 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
2930 * the last ELS command from the associated ndlp and invokes the proper ELS
2931 * function according to the delayed ELS command to retry the command.
2934 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
2936 struct lpfc_vport
*vport
= ndlp
->vport
;
2937 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2938 uint32_t cmd
, did
, retry
;
2940 spin_lock_irq(shost
->host_lock
);
2941 did
= ndlp
->nlp_DID
;
2942 cmd
= ndlp
->nlp_last_elscmd
;
2943 ndlp
->nlp_last_elscmd
= 0;
2945 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
2946 spin_unlock_irq(shost
->host_lock
);
2950 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2951 spin_unlock_irq(shost
->host_lock
);
2953 * If a discovery event readded nlp_delayfunc after timer
2954 * firing and before processing the timer, cancel the
2957 del_timer_sync(&ndlp
->nlp_delayfunc
);
2958 retry
= ndlp
->nlp_retry
;
2959 ndlp
->nlp_retry
= 0;
2963 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
2966 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
2967 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2968 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
2972 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
2973 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2974 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
2978 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
2979 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2980 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
2984 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
2985 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2986 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
2990 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
2991 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
2998 * lpfc_els_retry - Make retry decision on an els command iocb
2999 * @phba: pointer to lpfc hba data structure.
3000 * @cmdiocb: pointer to lpfc command iocb data structure.
3001 * @rspiocb: pointer to lpfc response iocb data structure.
3003 * This routine makes a retry decision on an ELS command IOCB, which has
3004 * failed. The following ELS IOCBs use this function for retrying the command
3005 * when previously issued command responsed with error status: FLOGI, PLOGI,
3006 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3007 * returned error status, it makes the decision whether a retry shall be
3008 * issued for the command, and whether a retry shall be made immediately or
3009 * delayed. In the former case, the corresponding ELS command issuing-function
3010 * is called to retry the command. In the later case, the ELS command shall
3011 * be posted to the ndlp delayed event and delayed function timer set to the
3012 * ndlp for the delayed command issusing.
3015 * 0 - No retry of els command is made
3016 * 1 - Immediate or delayed retry of els command is made
3019 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3020 struct lpfc_iocbq
*rspiocb
)
3022 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3023 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3024 IOCB_t
*irsp
= &rspiocb
->iocb
;
3025 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3026 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
3029 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
3035 /* Note: context2 may be 0 for internal driver abort
3036 * of delays ELS command.
3039 if (pcmd
&& pcmd
->virt
) {
3040 elscmd
= (uint32_t *) (pcmd
->virt
);
3044 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
3045 did
= ndlp
->nlp_DID
;
3047 /* We should only hit this case for retrying PLOGI */
3048 did
= irsp
->un
.elsreq64
.remoteID
;
3049 ndlp
= lpfc_findnode_did(vport
, did
);
3050 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
3051 && (cmd
!= ELS_CMD_PLOGI
))
3055 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
3056 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3057 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3059 switch (irsp
->ulpStatus
) {
3060 case IOSTAT_FCP_RSP_ERROR
:
3062 case IOSTAT_REMOTE_STOP
:
3063 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3064 /* This IO was aborted by the target, we don't
3065 * know the rxid and because we did not send the
3066 * ABTS we cannot generate and RRQ.
3068 lpfc_set_rrq_active(phba
, ndlp
,
3069 cmdiocb
->sli4_lxritag
, 0, 0);
3072 case IOSTAT_LOCAL_REJECT
:
3073 switch ((irsp
->un
.ulpWord
[4] & 0xff)) {
3074 case IOERR_LOOP_OPEN_FAILURE
:
3075 if (cmd
== ELS_CMD_FLOGI
) {
3076 if (PCI_DEVICE_ID_HORNET
==
3077 phba
->pcidev
->device
) {
3078 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
3079 phba
->pport
->fc_myDID
= 0;
3080 phba
->alpa_map
[0] = 0;
3081 phba
->alpa_map
[1] = 0;
3084 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
3089 case IOERR_ILLEGAL_COMMAND
:
3090 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3091 "0124 Retry illegal cmd x%x "
3092 "retry:x%x delay:x%x\n",
3093 cmd
, cmdiocb
->retry
, delay
);
3095 /* All command's retry policy */
3097 if (cmdiocb
->retry
> 2)
3101 case IOERR_NO_RESOURCES
:
3102 logerr
= 1; /* HBA out of resources */
3104 if (cmdiocb
->retry
> 100)
3109 case IOERR_ILLEGAL_FRAME
:
3114 case IOERR_SEQUENCE_TIMEOUT
:
3115 case IOERR_INVALID_RPI
:
3121 case IOSTAT_NPORT_RJT
:
3122 case IOSTAT_FABRIC_RJT
:
3123 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
3129 case IOSTAT_NPORT_BSY
:
3130 case IOSTAT_FABRIC_BSY
:
3131 logerr
= 1; /* Fabric / Remote NPort out of resources */
3136 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
3137 /* Added for Vendor specifc support
3138 * Just keep retrying for these Rsn / Exp codes
3140 switch (stat
.un
.b
.lsRjtRsnCode
) {
3141 case LSRJT_UNABLE_TPC
:
3142 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3143 LSEXP_CMD_IN_PROGRESS
) {
3144 if (cmd
== ELS_CMD_PLOGI
) {
3151 if (stat
.un
.b
.lsRjtRsnCodeExp
==
3152 LSEXP_CANT_GIVE_DATA
) {
3153 if (cmd
== ELS_CMD_PLOGI
) {
3160 if (cmd
== ELS_CMD_PLOGI
) {
3162 maxretry
= lpfc_max_els_tries
+ 1;
3166 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3167 (cmd
== ELS_CMD_FDISC
) &&
3168 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3169 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3170 "0125 FDISC Failed (x%x). "
3171 "Fabric out of resources\n",
3172 stat
.un
.lsRjtError
);
3173 lpfc_vport_set_state(vport
,
3174 FC_VPORT_NO_FABRIC_RSCS
);
3178 case LSRJT_LOGICAL_BSY
:
3179 if ((cmd
== ELS_CMD_PLOGI
) ||
3180 (cmd
== ELS_CMD_PRLI
)) {
3183 } else if (cmd
== ELS_CMD_FDISC
) {
3184 /* FDISC retry policy */
3186 if (cmdiocb
->retry
>= 32)
3192 case LSRJT_LOGICAL_ERR
:
3193 /* There are some cases where switches return this
3194 * error when they are not ready and should be returning
3195 * Logical Busy. We should delay every time.
3197 if (cmd
== ELS_CMD_FDISC
&&
3198 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3204 case LSRJT_PROTOCOL_ERR
:
3205 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3206 (cmd
== ELS_CMD_FDISC
) &&
3207 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3208 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3210 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3211 "0122 FDISC Failed (x%x). "
3212 "Fabric Detected Bad WWN\n",
3213 stat
.un
.lsRjtError
);
3214 lpfc_vport_set_state(vport
,
3215 FC_VPORT_FABRIC_REJ_WWN
);
3221 case IOSTAT_INTERMED_RSP
:
3229 if (did
== FDMI_DID
)
3232 if ((cmd
== ELS_CMD_FLOGI
) &&
3233 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3234 !lpfc_error_lost_link(irsp
)) {
3235 /* FLOGI retry policy */
3237 /* retry FLOGI forever */
3239 if (cmdiocb
->retry
>= 100)
3241 else if (cmdiocb
->retry
>= 32)
3243 } else if ((cmd
== ELS_CMD_FDISC
) && !lpfc_error_lost_link(irsp
)) {
3244 /* retry FDISCs every second up to devloss */
3246 maxretry
= vport
->cfg_devloss_tmo
;
3251 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3252 phba
->fc_stat
.elsRetryExceeded
++;
3256 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3260 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3261 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3262 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3263 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3264 "2849 Stop retry ELS command "
3265 "x%x to remote NPORT x%x, "
3266 "Data: x%x x%x\n", cmd
, did
,
3267 cmdiocb
->retry
, delay
);
3272 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3273 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3274 "0107 Retry ELS command x%x to remote "
3275 "NPORT x%x Data: x%x x%x\n",
3276 cmd
, did
, cmdiocb
->retry
, delay
);
3278 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3279 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3280 ((irsp
->un
.ulpWord
[4] & 0xff) != IOERR_NO_RESOURCES
))) {
3281 /* Don't reset timer for no resources */
3283 /* If discovery / RSCN timer is running, reset it */
3284 if (timer_pending(&vport
->fc_disctmo
) ||
3285 (vport
->fc_flag
& FC_RSCN_MODE
))
3286 lpfc_set_disctmo(vport
);
3289 phba
->fc_stat
.elsXmitRetry
++;
3290 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3291 phba
->fc_stat
.elsDelayRetry
++;
3292 ndlp
->nlp_retry
= cmdiocb
->retry
;
3294 /* delay is specified in milliseconds */
3295 mod_timer(&ndlp
->nlp_delayfunc
,
3296 jiffies
+ msecs_to_jiffies(delay
));
3297 spin_lock_irq(shost
->host_lock
);
3298 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3299 spin_unlock_irq(shost
->host_lock
);
3301 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3302 if (cmd
== ELS_CMD_PRLI
)
3303 lpfc_nlp_set_state(vport
, ndlp
,
3304 NLP_STE_REG_LOGIN_ISSUE
);
3306 lpfc_nlp_set_state(vport
, ndlp
,
3308 ndlp
->nlp_last_elscmd
= cmd
;
3314 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3317 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3320 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3321 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3322 lpfc_nlp_set_state(vport
, ndlp
,
3323 NLP_STE_PLOGI_ISSUE
);
3325 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3328 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3329 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3330 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3333 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3334 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3335 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3338 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3339 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);
3340 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3344 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3346 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3347 "0137 No retry ELS command x%x to remote "
3348 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3349 cmd
, did
, irsp
->ulpStatus
,
3350 irsp
->un
.ulpWord
[4]);
3353 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3354 "0108 No retry ELS command x%x to remote "
3355 "NPORT x%x Retried:%d Error:x%x/%x\n",
3356 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3357 irsp
->un
.ulpWord
[4]);
3363 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3364 * @phba: pointer to lpfc hba data structure.
3365 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3367 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3368 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3369 * checks to see whether there is a lpfc DMA buffer associated with the
3370 * response of the command IOCB. If so, it will be released before releasing
3371 * the lpfc DMA buffer associated with the IOCB itself.
3374 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3377 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3379 struct lpfc_dmabuf
*buf_ptr
;
3381 /* Free the response before processing the command. */
3382 if (!list_empty(&buf_ptr1
->list
)) {
3383 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3386 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3389 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3395 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3396 * @phba: pointer to lpfc hba data structure.
3397 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3399 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3400 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3404 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3407 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3409 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3415 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3416 * @phba: pointer to lpfc hba data structure.
3417 * @elsiocb: pointer to lpfc els command iocb data structure.
3419 * This routine frees a command IOCB and its associated resources. The
3420 * command IOCB data structure contains the reference to various associated
3421 * resources, these fields must be set to NULL if the associated reference
3423 * context1 - reference to ndlp
3424 * context2 - reference to cmd
3425 * context2->next - reference to rsp
3426 * context3 - reference to bpl
3428 * It first properly decrements the reference count held on ndlp for the
3429 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3430 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3431 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3432 * adds the DMA buffer the @phba data structure for the delayed release.
3433 * If reference to the Buffer Pointer List (BPL) is present, the
3434 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3435 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3436 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3439 * 0 - Success (currently, always return 0)
3442 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3444 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3445 struct lpfc_nodelist
*ndlp
;
3447 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3449 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3452 /* If the ndlp is not being used by another discovery
3455 if (!lpfc_nlp_not_used(ndlp
)) {
3456 /* If ndlp is being used by another discovery
3457 * thread, just clear NLP_DEFER_RM
3459 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3464 elsiocb
->context1
= NULL
;
3466 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3467 if (elsiocb
->context2
) {
3468 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3469 /* Firmware could still be in progress of DMAing
3470 * payload, so don't free data buffer till after
3473 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3474 buf_ptr
= elsiocb
->context2
;
3475 elsiocb
->context2
= NULL
;
3478 spin_lock_irq(&phba
->hbalock
);
3479 if (!list_empty(&buf_ptr
->list
)) {
3480 list_remove_head(&buf_ptr
->list
,
3481 buf_ptr1
, struct lpfc_dmabuf
,
3483 INIT_LIST_HEAD(&buf_ptr1
->list
);
3484 list_add_tail(&buf_ptr1
->list
,
3488 INIT_LIST_HEAD(&buf_ptr
->list
);
3489 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3491 spin_unlock_irq(&phba
->hbalock
);
3494 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3495 lpfc_els_free_data(phba
, buf_ptr1
);
3499 if (elsiocb
->context3
) {
3500 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3501 lpfc_els_free_bpl(phba
, buf_ptr
);
3503 lpfc_sli_release_iocbq(phba
, elsiocb
);
3508 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3509 * @phba: pointer to lpfc hba data structure.
3510 * @cmdiocb: pointer to lpfc command iocb data structure.
3511 * @rspiocb: pointer to lpfc response iocb data structure.
3513 * This routine is the completion callback function to the Logout (LOGO)
3514 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3515 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3516 * release the ndlp if it has the last reference remaining (reference count
3517 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3518 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3519 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3520 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3521 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3522 * IOCB data structure.
3525 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3526 struct lpfc_iocbq
*rspiocb
)
3528 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3529 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3532 irsp
= &rspiocb
->iocb
;
3533 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3534 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3535 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3536 /* ACC to LOGO completes to NPort <nlp_DID> */
3537 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3538 "0109 ACC to LOGO completes to NPort x%x "
3539 "Data: x%x x%x x%x\n",
3540 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3543 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3544 /* NPort Recovery mode or node is just allocated */
3545 if (!lpfc_nlp_not_used(ndlp
)) {
3546 /* If the ndlp is being used by another discovery
3547 * thread, just unregister the RPI.
3549 lpfc_unreg_rpi(vport
, ndlp
);
3551 /* Indicate the node has already released, should
3552 * not reference to it from within lpfc_els_free_iocb.
3554 cmdiocb
->context1
= NULL
;
3559 * The driver received a LOGO from the rport and has ACK'd it.
3560 * At this point, the driver is done so release the IOCB
3562 lpfc_els_free_iocb(phba
, cmdiocb
);
3565 * Remove the ndlp reference if it's a fabric node that has
3566 * sent us an unsolicted LOGO.
3568 if (ndlp
->nlp_type
& NLP_FABRIC
)
3575 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3576 * @phba: pointer to lpfc hba data structure.
3577 * @pmb: pointer to the driver internal queue element for mailbox command.
3579 * This routine is the completion callback function for unregister default
3580 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3581 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3582 * decrements the ndlp reference count held for this completion callback
3583 * function. After that, it invokes the lpfc_nlp_not_used() to check
3584 * whether there is only one reference left on the ndlp. If so, it will
3585 * perform one more decrement and trigger the release of the ndlp.
3588 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3590 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3591 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3593 pmb
->context1
= NULL
;
3594 pmb
->context2
= NULL
;
3596 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3598 mempool_free(pmb
, phba
->mbox_mem_pool
);
3600 if (NLP_CHK_NODE_ACT(ndlp
)) {
3602 /* This is the end of the default RPI cleanup logic for
3603 * this ndlp. If no other discovery threads are using
3604 * this ndlp, free all resources associated with it.
3606 lpfc_nlp_not_used(ndlp
);
3608 lpfc_drop_node(ndlp
->vport
, ndlp
);
3616 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3617 * @phba: pointer to lpfc hba data structure.
3618 * @cmdiocb: pointer to lpfc command iocb data structure.
3619 * @rspiocb: pointer to lpfc response iocb data structure.
3621 * This routine is the completion callback function for ELS Response IOCB
3622 * command. In normal case, this callback function just properly sets the
3623 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3624 * field in the command IOCB is not NULL, the referred mailbox command will
3625 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3626 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3627 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3628 * routine shall be invoked trying to release the ndlp if no other threads
3629 * are currently referring it.
3632 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3633 struct lpfc_iocbq
*rspiocb
)
3635 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3636 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3637 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3640 LPFC_MBOXQ_t
*mbox
= NULL
;
3641 struct lpfc_dmabuf
*mp
= NULL
;
3642 uint32_t ls_rjt
= 0;
3644 irsp
= &rspiocb
->iocb
;
3646 if (cmdiocb
->context_un
.mbox
)
3647 mbox
= cmdiocb
->context_un
.mbox
;
3649 /* First determine if this is a LS_RJT cmpl. Note, this callback
3650 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3652 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3653 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3654 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3655 /* A LS_RJT associated with Default RPI cleanup has its own
3656 * separate code path.
3658 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3662 /* Check to see if link went down during discovery */
3663 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3665 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3667 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3670 mempool_free(mbox
, phba
->mbox_mem_pool
);
3672 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3673 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3674 if (lpfc_nlp_not_used(ndlp
)) {
3676 /* Indicate the node has already released,
3677 * should not reference to it from within
3678 * the routine lpfc_els_free_iocb.
3680 cmdiocb
->context1
= NULL
;
3685 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3686 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3687 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3688 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3689 /* ELS response tag <ulpIoTag> completes */
3690 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3691 "0110 ELS response tag x%x completes "
3692 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3693 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3694 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3695 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3698 if ((rspiocb
->iocb
.ulpStatus
== 0)
3699 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3700 lpfc_unreg_rpi(vport
, ndlp
);
3701 /* Increment reference count to ndlp to hold the
3702 * reference to ndlp for the callback function.
3704 mbox
->context2
= lpfc_nlp_get(ndlp
);
3705 mbox
->vport
= vport
;
3706 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3707 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3708 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3711 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3712 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3713 lpfc_nlp_set_state(vport
, ndlp
,
3714 NLP_STE_REG_LOGIN_ISSUE
);
3716 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3717 != MBX_NOT_FINISHED
)
3720 /* Decrement the ndlp reference count we
3721 * set for this failed mailbox command.
3725 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3726 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3727 "0138 ELS rsp: Cannot issue reg_login for x%x "
3728 "Data: x%x x%x x%x\n",
3729 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3732 if (lpfc_nlp_not_used(ndlp
)) {
3734 /* Indicate node has already been released,
3735 * should not reference to it from within
3736 * the routine lpfc_els_free_iocb.
3738 cmdiocb
->context1
= NULL
;
3741 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3742 if (!lpfc_error_lost_link(irsp
) &&
3743 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3744 if (lpfc_nlp_not_used(ndlp
)) {
3746 /* Indicate node has already been
3747 * released, should not reference
3748 * to it from within the routine
3749 * lpfc_els_free_iocb.
3751 cmdiocb
->context1
= NULL
;
3755 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3757 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3760 mempool_free(mbox
, phba
->mbox_mem_pool
);
3763 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3764 spin_lock_irq(shost
->host_lock
);
3765 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3766 spin_unlock_irq(shost
->host_lock
);
3768 /* If the node is not being used by another discovery thread,
3769 * and we are sending a reject, we are done with it.
3770 * Release driver reference count here and free associated
3774 if (lpfc_nlp_not_used(ndlp
))
3775 /* Indicate node has already been released,
3776 * should not reference to it from within
3777 * the routine lpfc_els_free_iocb.
3779 cmdiocb
->context1
= NULL
;
3782 lpfc_els_free_iocb(phba
, cmdiocb
);
3787 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3788 * @vport: pointer to a host virtual N_Port data structure.
3789 * @flag: the els command code to be accepted.
3790 * @oldiocb: pointer to the original lpfc command iocb data structure.
3791 * @ndlp: pointer to a node-list data structure.
3792 * @mbox: pointer to the driver internal queue element for mailbox command.
3794 * This routine prepares and issues an Accept (ACC) response IOCB
3795 * command. It uses the @flag to properly set up the IOCB field for the
3796 * specific ACC response command to be issued and invokes the
3797 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3798 * @mbox pointer is passed in, it will be put into the context_un.mbox
3799 * field of the IOCB for the completion callback function to issue the
3800 * mailbox command to the HBA later when callback is invoked.
3802 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3803 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3804 * will be stored into the context1 field of the IOCB for the completion
3805 * callback function to the corresponding response ELS IOCB command.
3808 * 0 - Successfully issued acc response
3809 * 1 - Failed to issue acc response
3812 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3813 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3816 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3817 struct lpfc_hba
*phba
= vport
->phba
;
3820 struct lpfc_iocbq
*elsiocb
;
3821 struct lpfc_sli
*psli
;
3825 ELS_PKT
*els_pkt_ptr
;
3828 oldcmd
= &oldiocb
->iocb
;
3832 cmdsize
= sizeof(uint32_t);
3833 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3834 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3836 spin_lock_irq(shost
->host_lock
);
3837 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3838 spin_unlock_irq(shost
->host_lock
);
3842 icmd
= &elsiocb
->iocb
;
3843 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3844 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3845 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3846 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3847 pcmd
+= sizeof(uint32_t);
3849 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3850 "Issue ACC: did:x%x flg:x%x",
3851 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3854 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3855 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3856 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3860 icmd
= &elsiocb
->iocb
;
3861 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3862 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3863 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3866 elsiocb
->context_un
.mbox
= mbox
;
3868 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3869 pcmd
+= sizeof(uint32_t);
3870 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
3872 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3873 "Issue ACC PLOGI: did:x%x flg:x%x",
3874 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3877 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
3878 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3879 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
3883 icmd
= &elsiocb
->iocb
;
3884 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3885 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3886 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3888 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
3889 sizeof(uint32_t) + sizeof(PRLO
));
3890 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
3891 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
3892 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
3894 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3895 "Issue ACC PRLO: did:x%x flg:x%x",
3896 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3901 /* Xmit ELS ACC response tag <ulpIoTag> */
3902 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3903 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
3904 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
3906 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
3907 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3908 ndlp
->nlp_rpi
, vport
->fc_flag
);
3909 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
3910 spin_lock_irq(shost
->host_lock
);
3911 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3912 spin_unlock_irq(shost
->host_lock
);
3913 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
3915 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3918 phba
->fc_stat
.elsXmitACC
++;
3919 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3920 if (rc
== IOCB_ERROR
) {
3921 lpfc_els_free_iocb(phba
, elsiocb
);
3928 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
3929 * @vport: pointer to a virtual N_Port data structure.
3931 * @oldiocb: pointer to the original lpfc command iocb data structure.
3932 * @ndlp: pointer to a node-list data structure.
3933 * @mbox: pointer to the driver internal queue element for mailbox command.
3935 * This routine prepares and issue an Reject (RJT) response IOCB
3936 * command. If a @mbox pointer is passed in, it will be put into the
3937 * context_un.mbox field of the IOCB for the completion callback function
3938 * to issue to the HBA later.
3940 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3941 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3942 * will be stored into the context1 field of the IOCB for the completion
3943 * callback function to the reject response ELS IOCB command.
3946 * 0 - Successfully issued reject response
3947 * 1 - Failed to issue reject response
3950 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
3951 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3954 struct lpfc_hba
*phba
= vport
->phba
;
3957 struct lpfc_iocbq
*elsiocb
;
3958 struct lpfc_sli
*psli
;
3964 cmdsize
= 2 * sizeof(uint32_t);
3965 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
3966 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
3970 icmd
= &elsiocb
->iocb
;
3971 oldcmd
= &oldiocb
->iocb
;
3972 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
3973 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
3974 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3976 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
3977 pcmd
+= sizeof(uint32_t);
3978 *((uint32_t *) (pcmd
)) = rejectError
;
3981 elsiocb
->context_un
.mbox
= mbox
;
3983 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
3984 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3985 "0129 Xmit ELS RJT x%x response tag x%x "
3986 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
3988 rejectError
, elsiocb
->iotag
,
3989 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
3990 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
3991 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3992 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
3993 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
3995 phba
->fc_stat
.elsXmitLSRJT
++;
3996 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3997 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3999 if (rc
== IOCB_ERROR
) {
4000 lpfc_els_free_iocb(phba
, elsiocb
);
4007 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4008 * @vport: pointer to a virtual N_Port data structure.
4009 * @oldiocb: pointer to the original lpfc command iocb data structure.
4010 * @ndlp: pointer to a node-list data structure.
4012 * This routine prepares and issues an Accept (ACC) response to Address
4013 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4014 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4016 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4017 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4018 * will be stored into the context1 field of the IOCB for the completion
4019 * callback function to the ADISC Accept response ELS IOCB command.
4022 * 0 - Successfully issued acc adisc response
4023 * 1 - Failed to issue adisc acc response
4026 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4027 struct lpfc_nodelist
*ndlp
)
4029 struct lpfc_hba
*phba
= vport
->phba
;
4031 IOCB_t
*icmd
, *oldcmd
;
4032 struct lpfc_iocbq
*elsiocb
;
4037 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
4038 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4039 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4043 icmd
= &elsiocb
->iocb
;
4044 oldcmd
= &oldiocb
->iocb
;
4045 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4046 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4048 /* Xmit ADISC ACC response tag <ulpIoTag> */
4049 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4050 "0130 Xmit ADISC ACC response iotag x%x xri: "
4051 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4052 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4053 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4055 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4057 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4058 pcmd
+= sizeof(uint32_t);
4060 ap
= (ADISC
*) (pcmd
);
4061 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
4062 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4063 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4064 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
4066 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4067 "Issue ACC ADISC: did:x%x flg:x%x",
4068 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4070 phba
->fc_stat
.elsXmitACC
++;
4071 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4072 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4073 if (rc
== IOCB_ERROR
) {
4074 lpfc_els_free_iocb(phba
, elsiocb
);
4081 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4082 * @vport: pointer to a virtual N_Port data structure.
4083 * @oldiocb: pointer to the original lpfc command iocb data structure.
4084 * @ndlp: pointer to a node-list data structure.
4086 * This routine prepares and issues an Accept (ACC) response to Process
4087 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4088 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4090 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4091 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4092 * will be stored into the context1 field of the IOCB for the completion
4093 * callback function to the PRLI Accept response ELS IOCB command.
4096 * 0 - Successfully issued acc prli response
4097 * 1 - Failed to issue acc prli response
4100 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
4101 struct lpfc_nodelist
*ndlp
)
4103 struct lpfc_hba
*phba
= vport
->phba
;
4108 struct lpfc_iocbq
*elsiocb
;
4109 struct lpfc_sli
*psli
;
4116 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
4117 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4118 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
4122 icmd
= &elsiocb
->iocb
;
4123 oldcmd
= &oldiocb
->iocb
;
4124 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4125 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4127 /* Xmit PRLI ACC response tag <ulpIoTag> */
4128 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4129 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4130 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4131 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
4132 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
4134 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4136 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
4137 pcmd
+= sizeof(uint32_t);
4139 /* For PRLI, remainder of payload is PRLI parameter page */
4140 memset(pcmd
, 0, sizeof(PRLI
));
4142 npr
= (PRLI
*) pcmd
;
4145 * If the remote port is a target and our firmware version is 3.20 or
4146 * later, set the following bits for FC-TAPE support.
4148 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4149 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
4150 npr
->ConfmComplAllowed
= 1;
4152 npr
->TaskRetryIdReq
= 1;
4155 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
4156 npr
->estabImagePair
= 1;
4157 npr
->readXferRdyDis
= 1;
4158 npr
->ConfmComplAllowed
= 1;
4160 npr
->prliType
= PRLI_FCP_TYPE
;
4161 npr
->initiatorFunc
= 1;
4163 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4164 "Issue ACC PRLI: did:x%x flg:x%x",
4165 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4167 phba
->fc_stat
.elsXmitACC
++;
4168 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4170 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4171 if (rc
== IOCB_ERROR
) {
4172 lpfc_els_free_iocb(phba
, elsiocb
);
4179 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4180 * @vport: pointer to a virtual N_Port data structure.
4181 * @format: rnid command format.
4182 * @oldiocb: pointer to the original lpfc command iocb data structure.
4183 * @ndlp: pointer to a node-list data structure.
4185 * This routine issues a Request Node Identification Data (RNID) Accept
4186 * (ACC) response. It constructs the RNID ACC response command according to
4187 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4188 * issue the response. Note that this command does not need to hold the ndlp
4189 * reference count for the callback. So, the ndlp reference count taken by
4190 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4191 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4192 * there is no ndlp reference available.
4194 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4195 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4196 * will be stored into the context1 field of the IOCB for the completion
4197 * callback function. However, for the RNID Accept Response ELS command,
4198 * this is undone later by this routine after the IOCB is allocated.
4201 * 0 - Successfully issued acc rnid response
4202 * 1 - Failed to issue acc rnid response
4205 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4206 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4208 struct lpfc_hba
*phba
= vport
->phba
;
4210 IOCB_t
*icmd
, *oldcmd
;
4211 struct lpfc_iocbq
*elsiocb
;
4212 struct lpfc_sli
*psli
;
4218 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4219 + (2 * sizeof(struct lpfc_name
));
4221 cmdsize
+= sizeof(RNID_TOP_DISC
);
4223 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4224 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4228 icmd
= &elsiocb
->iocb
;
4229 oldcmd
= &oldiocb
->iocb
;
4230 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
4231 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
4233 /* Xmit RNID ACC response tag <ulpIoTag> */
4234 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4235 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4236 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4237 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4238 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4239 pcmd
+= sizeof(uint32_t);
4241 memset(pcmd
, 0, sizeof(RNID
));
4242 rn
= (RNID
*) (pcmd
);
4243 rn
->Format
= format
;
4244 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4245 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4246 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4249 rn
->SpecificLen
= 0;
4251 case RNID_TOPOLOGY_DISC
:
4252 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4253 memcpy(&rn
->un
.topologyDisc
.portName
,
4254 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4255 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4256 rn
->un
.topologyDisc
.physPort
= 0;
4257 rn
->un
.topologyDisc
.attachedNodes
= 0;
4261 rn
->SpecificLen
= 0;
4265 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4266 "Issue ACC RNID: did:x%x flg:x%x",
4267 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4269 phba
->fc_stat
.elsXmitACC
++;
4270 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4272 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4273 if (rc
== IOCB_ERROR
) {
4274 lpfc_els_free_iocb(phba
, elsiocb
);
4281 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4282 * @vport: pointer to a virtual N_Port data structure.
4283 * @iocb: pointer to the lpfc command iocb data structure.
4284 * @ndlp: pointer to a node-list data structure.
4289 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4290 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4292 struct lpfc_hba
*phba
= vport
->phba
;
4297 struct lpfc_node_rrq
*prrq
;
4300 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4301 pcmd
+= sizeof(uint32_t);
4302 rrq
= (struct RRQ
*)pcmd
;
4303 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4304 rxid
= bf_get(rrq_rxid
, rrq
);
4306 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4307 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4309 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4310 bf_get(rrq_oxid
, rrq
),
4312 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4314 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4315 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4316 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4317 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4318 xri
= bf_get(rrq_oxid
, rrq
);
4321 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4323 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4328 * lpfc_els_rsp_echo_acc - Issue echo acc response
4329 * @vport: pointer to a virtual N_Port data structure.
4330 * @data: pointer to echo data to return in the accept.
4331 * @oldiocb: pointer to the original lpfc command iocb data structure.
4332 * @ndlp: pointer to a node-list data structure.
4335 * 0 - Successfully issued acc echo response
4336 * 1 - Failed to issue acc echo response
4339 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4340 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4342 struct lpfc_hba
*phba
= vport
->phba
;
4343 struct lpfc_iocbq
*elsiocb
;
4344 struct lpfc_sli
*psli
;
4350 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4352 /* The accumulated length can exceed the BPL_SIZE. For
4353 * now, use this as the limit
4355 if (cmdsize
> LPFC_BPL_SIZE
)
4356 cmdsize
= LPFC_BPL_SIZE
;
4357 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4358 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4362 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri / rx_id */
4363 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= oldiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
4365 /* Xmit ECHO ACC response tag <ulpIoTag> */
4366 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4367 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4368 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4369 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4370 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4371 pcmd
+= sizeof(uint32_t);
4372 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4374 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4375 "Issue ACC ECHO: did:x%x flg:x%x",
4376 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4378 phba
->fc_stat
.elsXmitACC
++;
4379 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4381 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4382 if (rc
== IOCB_ERROR
) {
4383 lpfc_els_free_iocb(phba
, elsiocb
);
4390 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4391 * @vport: pointer to a host virtual N_Port data structure.
4393 * This routine issues Address Discover (ADISC) ELS commands to those
4394 * N_Ports which are in node port recovery state and ADISC has not been issued
4395 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4396 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4397 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4398 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4399 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4400 * IOCBs quit for later pick up. On the other hand, after walking through
4401 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4402 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4403 * no more ADISC need to be sent.
4406 * The number of N_Ports with adisc issued.
4409 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4411 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4412 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4415 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4416 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4417 if (!NLP_CHK_NODE_ACT(ndlp
))
4419 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4420 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4421 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4422 spin_lock_irq(shost
->host_lock
);
4423 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4424 spin_unlock_irq(shost
->host_lock
);
4425 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4426 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4427 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4429 vport
->num_disc_nodes
++;
4430 if (vport
->num_disc_nodes
>=
4431 vport
->cfg_discovery_threads
) {
4432 spin_lock_irq(shost
->host_lock
);
4433 vport
->fc_flag
|= FC_NLP_MORE
;
4434 spin_unlock_irq(shost
->host_lock
);
4439 if (sentadisc
== 0) {
4440 spin_lock_irq(shost
->host_lock
);
4441 vport
->fc_flag
&= ~FC_NLP_MORE
;
4442 spin_unlock_irq(shost
->host_lock
);
4448 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4449 * @vport: pointer to a host virtual N_Port data structure.
4451 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4452 * which are in node port recovery state, with a @vport. Each time an ELS
4453 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4454 * the per @vport number of discover count (num_disc_nodes) shall be
4455 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4456 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4457 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4458 * later pick up. On the other hand, after walking through all the ndlps with
4459 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4460 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4461 * PLOGI need to be sent.
4464 * The number of N_Ports with plogi issued.
4467 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4469 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4470 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4473 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4474 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4475 if (!NLP_CHK_NODE_ACT(ndlp
))
4477 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4478 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4479 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4480 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4481 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4482 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4483 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4485 vport
->num_disc_nodes
++;
4486 if (vport
->num_disc_nodes
>=
4487 vport
->cfg_discovery_threads
) {
4488 spin_lock_irq(shost
->host_lock
);
4489 vport
->fc_flag
|= FC_NLP_MORE
;
4490 spin_unlock_irq(shost
->host_lock
);
4496 lpfc_set_disctmo(vport
);
4499 spin_lock_irq(shost
->host_lock
);
4500 vport
->fc_flag
&= ~FC_NLP_MORE
;
4501 spin_unlock_irq(shost
->host_lock
);
4507 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
4508 * @vport: pointer to a host virtual N_Port data structure.
4510 * This routine cleans up any Registration State Change Notification
4511 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
4512 * @vport together with the host_lock is used to prevent multiple thread
4513 * trying to access the RSCN array on a same @vport at the same time.
4516 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
4518 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4519 struct lpfc_hba
*phba
= vport
->phba
;
4522 spin_lock_irq(shost
->host_lock
);
4523 if (vport
->fc_rscn_flush
) {
4524 /* Another thread is walking fc_rscn_id_list on this vport */
4525 spin_unlock_irq(shost
->host_lock
);
4528 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
4529 vport
->fc_rscn_flush
= 1;
4530 spin_unlock_irq(shost
->host_lock
);
4532 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4533 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
4534 vport
->fc_rscn_id_list
[i
] = NULL
;
4536 spin_lock_irq(shost
->host_lock
);
4537 vport
->fc_rscn_id_cnt
= 0;
4538 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
4539 spin_unlock_irq(shost
->host_lock
);
4540 lpfc_can_disctmo(vport
);
4541 /* Indicate we are done walking this fc_rscn_id_list */
4542 vport
->fc_rscn_flush
= 0;
4546 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
4547 * @vport: pointer to a host virtual N_Port data structure.
4548 * @did: remote destination port identifier.
4550 * This routine checks whether there is any pending Registration State
4551 * Configuration Notification (RSCN) to a @did on @vport.
4554 * None zero - The @did matched with a pending rscn
4555 * 0 - not able to match @did with a pending rscn
4558 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
4563 uint32_t payload_len
, i
;
4564 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4566 ns_did
.un
.word
= did
;
4568 /* Never match fabric nodes for RSCNs */
4569 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
4572 /* If we are doing a FULL RSCN rediscovery, match everything */
4573 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
4576 spin_lock_irq(shost
->host_lock
);
4577 if (vport
->fc_rscn_flush
) {
4578 /* Another thread is walking fc_rscn_id_list on this vport */
4579 spin_unlock_irq(shost
->host_lock
);
4582 /* Indicate we are walking fc_rscn_id_list on this vport */
4583 vport
->fc_rscn_flush
= 1;
4584 spin_unlock_irq(shost
->host_lock
);
4585 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4586 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
4587 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4588 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4589 while (payload_len
) {
4590 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
4591 payload_len
-= sizeof(uint32_t);
4592 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
4593 case RSCN_ADDRESS_FORMAT_PORT
:
4594 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4595 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
4596 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
4597 goto return_did_out
;
4599 case RSCN_ADDRESS_FORMAT_AREA
:
4600 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4601 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
4602 goto return_did_out
;
4604 case RSCN_ADDRESS_FORMAT_DOMAIN
:
4605 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4606 goto return_did_out
;
4608 case RSCN_ADDRESS_FORMAT_FABRIC
:
4609 goto return_did_out
;
4613 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4614 vport
->fc_rscn_flush
= 0;
4617 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4618 vport
->fc_rscn_flush
= 0;
4623 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
4624 * @vport: pointer to a host virtual N_Port data structure.
4626 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
4627 * state machine for a @vport's nodes that are with pending RSCN (Registration
4628 * State Change Notification).
4631 * 0 - Successful (currently alway return 0)
4634 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
4636 struct lpfc_nodelist
*ndlp
= NULL
;
4638 /* Move all affected nodes by pending RSCNs to NPR state. */
4639 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4640 if (!NLP_CHK_NODE_ACT(ndlp
) ||
4641 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
4642 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
4644 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
4645 NLP_EVT_DEVICE_RECOVERY
);
4646 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4652 * lpfc_send_rscn_event - Send an RSCN event to management application
4653 * @vport: pointer to a host virtual N_Port data structure.
4654 * @cmdiocb: pointer to lpfc command iocb data structure.
4656 * lpfc_send_rscn_event sends an RSCN netlink event to management
4660 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
4661 struct lpfc_iocbq
*cmdiocb
)
4663 struct lpfc_dmabuf
*pcmd
;
4664 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4665 uint32_t *payload_ptr
;
4666 uint32_t payload_len
;
4667 struct lpfc_rscn_event_header
*rscn_event_data
;
4669 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4670 payload_ptr
= (uint32_t *) pcmd
->virt
;
4671 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
4673 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
4674 payload_len
, GFP_KERNEL
);
4675 if (!rscn_event_data
) {
4676 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
4677 "0147 Failed to allocate memory for RSCN event\n");
4680 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
4681 rscn_event_data
->payload_length
= payload_len
;
4682 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
4685 fc_host_post_vendor_event(shost
,
4686 fc_get_event_number(),
4687 sizeof(struct lpfc_els_event_header
) + payload_len
,
4688 (char *)rscn_event_data
,
4691 kfree(rscn_event_data
);
4695 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
4696 * @vport: pointer to a host virtual N_Port data structure.
4697 * @cmdiocb: pointer to lpfc command iocb data structure.
4698 * @ndlp: pointer to a node-list data structure.
4700 * This routine processes an unsolicited RSCN (Registration State Change
4701 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
4702 * to invoke fc_host_post_event() routine to the FC transport layer. If the
4703 * discover state machine is about to begin discovery, it just accepts the
4704 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
4705 * contains N_Port IDs for other vports on this HBA, it just accepts the
4706 * RSCN and ignore processing it. If the state machine is in the recovery
4707 * state, the fc_rscn_id_list of this @vport is walked and the
4708 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
4709 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
4710 * routine is invoked to handle the RSCN event.
4713 * 0 - Just sent the acc response
4714 * 1 - Sent the acc response and waited for name server completion
4717 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4718 struct lpfc_nodelist
*ndlp
)
4720 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4721 struct lpfc_hba
*phba
= vport
->phba
;
4722 struct lpfc_dmabuf
*pcmd
;
4723 uint32_t *lp
, *datap
;
4725 uint32_t payload_len
, length
, nportid
, *cmd
;
4727 int rscn_id
= 0, hba_id
= 0;
4730 icmd
= &cmdiocb
->iocb
;
4731 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4732 lp
= (uint32_t *) pcmd
->virt
;
4734 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4735 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4737 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4738 "0214 RSCN received Data: x%x x%x x%x x%x\n",
4739 vport
->fc_flag
, payload_len
, *lp
,
4740 vport
->fc_rscn_id_cnt
);
4742 /* Send an RSCN event to the management application */
4743 lpfc_send_rscn_event(vport
, cmdiocb
);
4745 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
4746 fc_host_post_event(shost
, fc_get_event_number(),
4747 FCH_EVT_RSCN
, lp
[i
]);
4749 /* If we are about to begin discovery, just ACC the RSCN.
4750 * Discovery processing will satisfy it.
4752 if (vport
->port_state
<= LPFC_NS_QRY
) {
4753 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4754 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
4755 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4757 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4761 /* If this RSCN just contains NPortIDs for other vports on this HBA,
4762 * just ACC and ignore it.
4764 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
4765 !(vport
->cfg_peer_port_login
)) {
4770 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
4771 i
-= sizeof(uint32_t);
4773 if (lpfc_find_vport_by_did(phba
, nportid
))
4776 if (rscn_id
== hba_id
) {
4777 /* ALL NPortIDs in RSCN are on HBA */
4778 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4780 "Data: x%x x%x x%x x%x\n",
4781 vport
->fc_flag
, payload_len
,
4782 *lp
, vport
->fc_rscn_id_cnt
);
4783 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4784 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
4785 ndlp
->nlp_DID
, vport
->port_state
,
4788 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
4794 spin_lock_irq(shost
->host_lock
);
4795 if (vport
->fc_rscn_flush
) {
4796 /* Another thread is walking fc_rscn_id_list on this vport */
4797 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4798 spin_unlock_irq(shost
->host_lock
);
4800 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4803 /* Indicate we are walking fc_rscn_id_list on this vport */
4804 vport
->fc_rscn_flush
= 1;
4805 spin_unlock_irq(shost
->host_lock
);
4806 /* Get the array count after successfully have the token */
4807 rscn_cnt
= vport
->fc_rscn_id_cnt
;
4808 /* If we are already processing an RSCN, save the received
4809 * RSCN payload buffer, cmdiocb->context2 to process later.
4811 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
4812 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4813 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
4814 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4816 spin_lock_irq(shost
->host_lock
);
4817 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
4818 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
4819 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
4820 vport
->fc_flag
|= FC_RSCN_MODE
;
4821 spin_unlock_irq(shost
->host_lock
);
4823 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
4824 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
4827 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
4828 *cmd
&= ELS_CMD_MASK
;
4829 *cmd
|= cpu_to_be32(payload_len
+ length
);
4830 memcpy(((uint8_t *)cmd
) + length
, lp
,
4833 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
4834 vport
->fc_rscn_id_cnt
++;
4835 /* If we zero, cmdiocb->context2, the calling
4836 * routine will not try to free it.
4838 cmdiocb
->context2
= NULL
;
4841 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4842 "0235 Deferred RSCN "
4843 "Data: x%x x%x x%x\n",
4844 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4847 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4848 spin_unlock_irq(shost
->host_lock
);
4849 /* ReDiscovery RSCN */
4850 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4851 "0234 ReDiscovery RSCN "
4852 "Data: x%x x%x x%x\n",
4853 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4856 /* Indicate we are done walking fc_rscn_id_list on this vport */
4857 vport
->fc_rscn_flush
= 0;
4859 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4860 /* send RECOVERY event for ALL nodes that match RSCN payload */
4861 lpfc_rscn_recovery_check(vport
);
4862 spin_lock_irq(shost
->host_lock
);
4863 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
4864 spin_unlock_irq(shost
->host_lock
);
4867 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4868 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
4869 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4871 spin_lock_irq(shost
->host_lock
);
4872 vport
->fc_flag
|= FC_RSCN_MODE
;
4873 spin_unlock_irq(shost
->host_lock
);
4874 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
4875 /* Indicate we are done walking fc_rscn_id_list on this vport */
4876 vport
->fc_rscn_flush
= 0;
4878 * If we zero, cmdiocb->context2, the calling routine will
4879 * not try to free it.
4881 cmdiocb
->context2
= NULL
;
4882 lpfc_set_disctmo(vport
);
4884 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4885 /* send RECOVERY event for ALL nodes that match RSCN payload */
4886 lpfc_rscn_recovery_check(vport
);
4887 return lpfc_els_handle_rscn(vport
);
4891 * lpfc_els_handle_rscn - Handle rscn for a vport
4892 * @vport: pointer to a host virtual N_Port data structure.
4894 * This routine handles the Registration State Configuration Notification
4895 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
4896 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
4897 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
4898 * NameServer shall be issued. If CT command to the NameServer fails to be
4899 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
4900 * RSCN activities with the @vport.
4903 * 0 - Cleaned up rscn on the @vport
4904 * 1 - Wait for plogi to name server before proceed
4907 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
4909 struct lpfc_nodelist
*ndlp
;
4910 struct lpfc_hba
*phba
= vport
->phba
;
4912 /* Ignore RSCN if the port is being torn down. */
4913 if (vport
->load_flag
& FC_UNLOADING
) {
4914 lpfc_els_flush_rscn(vport
);
4918 /* Start timer for RSCN processing */
4919 lpfc_set_disctmo(vport
);
4921 /* RSCN processed */
4922 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4923 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
4924 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
4927 /* To process RSCN, first compare RSCN data with NameServer */
4928 vport
->fc_ns_retry
= 0;
4929 vport
->num_disc_nodes
= 0;
4931 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
4932 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
4933 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
4934 /* Good ndlp, issue CT Request to NameServer */
4935 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
4936 /* Wait for NameServer query cmpl before we can
4940 /* If login to NameServer does not exist, issue one */
4941 /* Good status, issue PLOGI to NameServer */
4942 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
4943 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
4944 /* Wait for NameServer login cmpl before we can
4949 ndlp
= lpfc_enable_node(vport
, ndlp
,
4950 NLP_STE_PLOGI_ISSUE
);
4952 lpfc_els_flush_rscn(vport
);
4955 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
4957 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
4959 lpfc_els_flush_rscn(vport
);
4962 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
4963 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4964 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4966 ndlp
->nlp_type
|= NLP_FABRIC
;
4967 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
4968 /* Wait for NameServer login cmpl before we can
4974 lpfc_els_flush_rscn(vport
);
4979 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
4980 * @vport: pointer to a host virtual N_Port data structure.
4981 * @cmdiocb: pointer to lpfc command iocb data structure.
4982 * @ndlp: pointer to a node-list data structure.
4984 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
4985 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
4986 * point topology. As an unsolicited FLOGI should not be received in a loop
4987 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
4988 * lpfc_check_sparm() routine is invoked to check the parameters in the
4989 * unsolicited FLOGI. If parameters validation failed, the routine
4990 * lpfc_els_rsp_reject() shall be called with reject reason code set to
4991 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
4992 * FLOGI shall be compared with the Port WWN of the @vport to determine who
4993 * will initiate PLOGI. The higher lexicographical value party shall has
4994 * higher priority (as the winning port) and will initiate PLOGI and
4995 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
4996 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
4997 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5000 * 0 - Successfully processed the unsolicited flogi
5001 * 1 - Failed to process the unsolicited flogi
5004 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5005 struct lpfc_nodelist
*ndlp
)
5007 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5008 struct lpfc_hba
*phba
= vport
->phba
;
5009 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5010 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
5011 IOCB_t
*icmd
= &cmdiocb
->iocb
;
5012 struct serv_parm
*sp
;
5019 sp
= (struct serv_parm
*) lp
;
5021 /* FLOGI received */
5023 lpfc_set_disctmo(vport
);
5025 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
5026 /* We should never receive a FLOGI in loop mode, ignore it */
5027 did
= icmd
->un
.elsreq64
.remoteID
;
5029 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5031 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5032 "0113 An FLOGI ELS command x%x was "
5033 "received from DID x%x in Loop Mode\n",
5038 if ((lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1))) {
5039 /* For a FLOGI we accept, then if our portname is greater
5040 * then the remote portname we initiate Nport login.
5043 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
5044 sizeof(struct lpfc_name
));
5047 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5048 mbox
= mempool_alloc(phba
->mbox_mem_pool
,
5052 lpfc_linkdown(phba
);
5053 lpfc_init_link(phba
, mbox
,
5055 phba
->cfg_link_speed
);
5056 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5057 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5058 mbox
->vport
= vport
;
5059 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
5061 lpfc_set_loopback_flag(phba
);
5062 if (rc
== MBX_NOT_FINISHED
)
5063 mempool_free(mbox
, phba
->mbox_mem_pool
);
5066 /* abort the flogi coming back to ourselves
5067 * due to external loopback on the port.
5069 lpfc_els_abort_flogi(phba
);
5072 } else if (rc
> 0) { /* greater than */
5073 spin_lock_irq(shost
->host_lock
);
5074 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
5075 spin_unlock_irq(shost
->host_lock
);
5077 /* If we have the high WWPN we can assign our own
5078 * myDID; otherwise, we have to WAIT for a PLOGI
5079 * from the remote NPort to find out what it
5082 vport
->fc_myDID
= PT2PT_LocalID
;
5086 * The vport state should go to LPFC_FLOGI only
5087 * AFTER we issue a FLOGI, not receive one.
5089 spin_lock_irq(shost
->host_lock
);
5090 vport
->fc_flag
|= FC_PT2PT
;
5091 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
5092 spin_unlock_irq(shost
->host_lock
);
5095 * We temporarily set fc_myDID to make it look like we are
5096 * a Fabric. This is done just so we end up with the right
5097 * did / sid on the FLOGI ACC rsp.
5099 did
= vport
->fc_myDID
;
5100 vport
->fc_myDID
= Fabric_DID
;
5103 /* Reject this request because invalid parameters */
5104 stat
.un
.b
.lsRjtRsvd0
= 0;
5105 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5106 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_SPARM_OPTIONS
;
5107 stat
.un
.b
.vendorUnique
= 0;
5110 * We temporarily set fc_myDID to make it look like we are
5111 * a Fabric. This is done just so we end up with the right
5112 * did / sid on the FLOGI LS_RJT rsp.
5114 did
= vport
->fc_myDID
;
5115 vport
->fc_myDID
= Fabric_DID
;
5117 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5120 /* Now lets put fc_myDID back to what its supposed to be */
5121 vport
->fc_myDID
= did
;
5127 lpfc_els_rsp_acc(vport
, ELS_CMD_PLOGI
, cmdiocb
, ndlp
, NULL
);
5129 /* Now lets put fc_myDID back to what its supposed to be */
5130 vport
->fc_myDID
= did
;
5132 if (!(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
5134 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5138 lpfc_config_link(phba
, mbox
);
5140 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5141 mbox
->vport
= vport
;
5142 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5143 if (rc
== MBX_NOT_FINISHED
) {
5144 mempool_free(mbox
, phba
->mbox_mem_pool
);
5155 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5156 * @vport: pointer to a host virtual N_Port data structure.
5157 * @cmdiocb: pointer to lpfc command iocb data structure.
5158 * @ndlp: pointer to a node-list data structure.
5160 * This routine processes Request Node Identification Data (RNID) IOCB
5161 * received as an ELS unsolicited event. Only when the RNID specified format
5162 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5163 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5164 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5165 * rejected by invoking the lpfc_els_rsp_reject() routine.
5168 * 0 - Successfully processed rnid iocb (currently always return 0)
5171 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5172 struct lpfc_nodelist
*ndlp
)
5174 struct lpfc_dmabuf
*pcmd
;
5181 icmd
= &cmdiocb
->iocb
;
5182 did
= icmd
->un
.elsreq64
.remoteID
;
5183 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5184 lp
= (uint32_t *) pcmd
->virt
;
5191 switch (rn
->Format
) {
5193 case RNID_TOPOLOGY_DISC
:
5195 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
5198 /* Reject this request because format not supported */
5199 stat
.un
.b
.lsRjtRsvd0
= 0;
5200 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5201 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5202 stat
.un
.b
.vendorUnique
= 0;
5203 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5210 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5211 * @vport: pointer to a host virtual N_Port data structure.
5212 * @cmdiocb: pointer to lpfc command iocb data structure.
5213 * @ndlp: pointer to a node-list data structure.
5216 * 0 - Successfully processed echo iocb (currently always return 0)
5219 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5220 struct lpfc_nodelist
*ndlp
)
5224 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
5226 /* skip over first word of echo command to find echo data */
5227 pcmd
+= sizeof(uint32_t);
5229 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
5234 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5235 * @vport: pointer to a host virtual N_Port data structure.
5236 * @cmdiocb: pointer to lpfc command iocb data structure.
5237 * @ndlp: pointer to a node-list data structure.
5239 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5240 * received as an ELS unsolicited event. Currently, this function just invokes
5241 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5244 * 0 - Successfully processed lirr iocb (currently always return 0)
5247 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5248 struct lpfc_nodelist
*ndlp
)
5252 /* For now, unconditionally reject this command */
5253 stat
.un
.b
.lsRjtRsvd0
= 0;
5254 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5255 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5256 stat
.un
.b
.vendorUnique
= 0;
5257 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5262 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5263 * @vport: pointer to a host virtual N_Port data structure.
5264 * @cmdiocb: pointer to lpfc command iocb data structure.
5265 * @ndlp: pointer to a node-list data structure.
5267 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5268 * received as an ELS unsolicited event. A request to RRQ shall only
5269 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5270 * Nx_Port N_Port_ID of the target Exchange is the same as the
5271 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5272 * not accepted, an LS_RJT with reason code "Unable to perform
5273 * command request" and reason code explanation "Invalid Originator
5274 * S_ID" shall be returned. For now, we just unconditionally accept
5275 * RRQ from the target.
5278 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5279 struct lpfc_nodelist
*ndlp
)
5281 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5282 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
5283 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
5287 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5288 * @phba: pointer to lpfc hba data structure.
5289 * @pmb: pointer to the driver internal queue element for mailbox command.
5291 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5292 * mailbox command. This callback function is to actually send the Accept
5293 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5294 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5295 * mailbox command, constructs the RPS response with the link statistics
5296 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5297 * response to the RPS.
5299 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5300 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5301 * will be stored into the context1 field of the IOCB for the completion
5302 * callback function to the RPS Accept Response ELS IOCB command.
5306 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5310 struct RLS_RSP
*rls_rsp
;
5312 struct lpfc_iocbq
*elsiocb
;
5313 struct lpfc_nodelist
*ndlp
;
5320 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5321 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5322 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5323 pmb
->context1
= NULL
;
5324 pmb
->context2
= NULL
;
5326 if (mb
->mbxStatus
) {
5327 mempool_free(pmb
, phba
->mbox_mem_pool
);
5331 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
5332 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5333 lpfc_max_els_tries
, ndlp
,
5334 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5336 /* Decrement the ndlp reference count from previous mbox command */
5340 mempool_free(pmb
, phba
->mbox_mem_pool
);
5344 icmd
= &elsiocb
->iocb
;
5345 icmd
->ulpContext
= rxid
;
5346 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5348 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5349 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5350 pcmd
+= sizeof(uint32_t); /* Skip past command */
5351 rls_rsp
= (struct RLS_RSP
*)pcmd
;
5353 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5354 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5355 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5356 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5357 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5358 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5359 mempool_free(pmb
, phba
->mbox_mem_pool
);
5360 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5361 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5362 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
5363 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5364 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5365 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5367 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5368 phba
->fc_stat
.elsXmitACC
++;
5369 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5370 lpfc_els_free_iocb(phba
, elsiocb
);
5374 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5375 * @phba: pointer to lpfc hba data structure.
5376 * @pmb: pointer to the driver internal queue element for mailbox command.
5378 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5379 * mailbox command. This callback function is to actually send the Accept
5380 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5381 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5382 * mailbox command, constructs the RPS response with the link statistics
5383 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5384 * response to the RPS.
5386 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5387 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5388 * will be stored into the context1 field of the IOCB for the completion
5389 * callback function to the RPS Accept Response ELS IOCB command.
5393 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5399 struct lpfc_iocbq
*elsiocb
;
5400 struct lpfc_nodelist
*ndlp
;
5408 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5409 rxid
= (uint16_t) ((unsigned long)(pmb
->context1
) & 0xffff);
5410 oxid
= (uint16_t) (((unsigned long)(pmb
->context1
) >> 16) & 0xffff);
5411 pmb
->context1
= NULL
;
5412 pmb
->context2
= NULL
;
5414 if (mb
->mbxStatus
) {
5415 mempool_free(pmb
, phba
->mbox_mem_pool
);
5419 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
5420 mempool_free(pmb
, phba
->mbox_mem_pool
);
5421 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5422 lpfc_max_els_tries
, ndlp
,
5423 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5425 /* Decrement the ndlp reference count from previous mbox command */
5431 icmd
= &elsiocb
->iocb
;
5432 icmd
->ulpContext
= rxid
;
5433 icmd
->unsli3
.rcvsli3
.ox_id
= oxid
;
5435 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5436 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5437 pcmd
+= sizeof(uint32_t); /* Skip past command */
5438 rps_rsp
= (RPS_RSP
*)pcmd
;
5440 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5444 if (phba
->pport
->fc_flag
& FC_FABRIC
)
5448 rps_rsp
->portStatus
= cpu_to_be16(status
);
5449 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5450 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5451 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5452 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5453 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5454 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5455 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
5456 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5457 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
5458 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5459 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5460 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5462 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5463 phba
->fc_stat
.elsXmitACC
++;
5464 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5465 lpfc_els_free_iocb(phba
, elsiocb
);
5470 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
5471 * @vport: pointer to a host virtual N_Port data structure.
5472 * @cmdiocb: pointer to lpfc command iocb data structure.
5473 * @ndlp: pointer to a node-list data structure.
5475 * This routine processes Read Port Status (RPL) IOCB received as an
5476 * ELS unsolicited event. It first checks the remote port state. If the
5477 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5478 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5479 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5480 * for reading the HBA link statistics. It is for the callback function,
5481 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
5482 * to actually sending out RPL Accept (ACC) response.
5485 * 0 - Successfully processed rls iocb (currently always return 0)
5488 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5489 struct lpfc_nodelist
*ndlp
)
5491 struct lpfc_hba
*phba
= vport
->phba
;
5493 struct lpfc_dmabuf
*pcmd
;
5496 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5497 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5498 /* reject the unsolicited RPS request and done with it */
5501 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5503 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5505 lpfc_read_lnk_stat(phba
, mbox
);
5506 mbox
->context1
= (void *)((unsigned long)
5507 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5508 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5509 mbox
->context2
= lpfc_nlp_get(ndlp
);
5510 mbox
->vport
= vport
;
5511 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
5512 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5513 != MBX_NOT_FINISHED
)
5514 /* Mbox completion will send ELS Response */
5516 /* Decrement reference count used for the failed mbox
5520 mempool_free(mbox
, phba
->mbox_mem_pool
);
5523 /* issue rejection response */
5524 stat
.un
.b
.lsRjtRsvd0
= 0;
5525 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5526 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5527 stat
.un
.b
.vendorUnique
= 0;
5528 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5533 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
5534 * @vport: pointer to a host virtual N_Port data structure.
5535 * @cmdiocb: pointer to lpfc command iocb data structure.
5536 * @ndlp: pointer to a node-list data structure.
5538 * This routine processes Read Timout Value (RTV) IOCB received as an
5539 * ELS unsolicited event. It first checks the remote port state. If the
5540 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5541 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5542 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
5543 * Value (RTV) unsolicited IOCB event.
5545 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5546 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5547 * will be stored into the context1 field of the IOCB for the completion
5548 * callback function to the RPS Accept Response ELS IOCB command.
5551 * 0 - Successfully processed rtv iocb (currently always return 0)
5554 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5555 struct lpfc_nodelist
*ndlp
)
5557 struct lpfc_hba
*phba
= vport
->phba
;
5559 struct RTV_RSP
*rtv_rsp
;
5561 struct lpfc_iocbq
*elsiocb
;
5565 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5566 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5567 /* reject the unsolicited RPS request and done with it */
5570 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
5571 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5572 lpfc_max_els_tries
, ndlp
,
5573 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5578 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5579 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5580 pcmd
+= sizeof(uint32_t); /* Skip past command */
5582 /* use the command's xri in the response */
5583 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
; /* Xri / rx_id */
5584 elsiocb
->iocb
.unsli3
.rcvsli3
.ox_id
= cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
;
5586 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
5588 /* populate RTV payload */
5589 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
5590 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
5591 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
5592 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
5593 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
5595 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5596 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5597 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
5598 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
5599 "Data: x%x x%x x%x\n",
5600 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5601 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5603 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
5604 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5605 phba
->fc_stat
.elsXmitACC
++;
5606 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5607 lpfc_els_free_iocb(phba
, elsiocb
);
5611 /* issue rejection response */
5612 stat
.un
.b
.lsRjtRsvd0
= 0;
5613 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5614 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5615 stat
.un
.b
.vendorUnique
= 0;
5616 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5620 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
5621 * @vport: pointer to a host virtual N_Port data structure.
5622 * @cmdiocb: pointer to lpfc command iocb data structure.
5623 * @ndlp: pointer to a node-list data structure.
5625 * This routine processes Read Port Status (RPS) IOCB received as an
5626 * ELS unsolicited event. It first checks the remote port state. If the
5627 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5628 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
5629 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5630 * for reading the HBA link statistics. It is for the callback function,
5631 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
5632 * to actually sending out RPS Accept (ACC) response.
5635 * 0 - Successfully processed rps iocb (currently always return 0)
5638 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5639 struct lpfc_nodelist
*ndlp
)
5641 struct lpfc_hba
*phba
= vport
->phba
;
5645 struct lpfc_dmabuf
*pcmd
;
5649 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5650 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5651 /* reject the unsolicited RPS request and done with it */
5654 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5655 lp
= (uint32_t *) pcmd
->virt
;
5656 flag
= (be32_to_cpu(*lp
++) & 0xf);
5660 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
5661 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
5662 sizeof(struct lpfc_name
)) == 0))) {
5664 printk("Fix me....\n");
5666 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5668 lpfc_read_lnk_stat(phba
, mbox
);
5669 mbox
->context1
= (void *)((unsigned long)
5670 ((cmdiocb
->iocb
.unsli3
.rcvsli3
.ox_id
<< 16) |
5671 cmdiocb
->iocb
.ulpContext
)); /* rx_id */
5672 mbox
->context2
= lpfc_nlp_get(ndlp
);
5673 mbox
->vport
= vport
;
5674 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
5675 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5676 != MBX_NOT_FINISHED
)
5677 /* Mbox completion will send ELS Response */
5679 /* Decrement reference count used for the failed mbox
5683 mempool_free(mbox
, phba
->mbox_mem_pool
);
5688 /* issue rejection response */
5689 stat
.un
.b
.lsRjtRsvd0
= 0;
5690 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5691 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5692 stat
.un
.b
.vendorUnique
= 0;
5693 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5697 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
5698 * @vport: pointer to a host virtual N_Port data structure.
5699 * @ndlp: pointer to a node-list data structure.
5700 * @did: DID of the target.
5701 * @rrq: Pointer to the rrq struct.
5703 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
5704 * Successful the the completion handler will clear the RRQ.
5707 * 0 - Successfully sent rrq els iocb.
5708 * 1 - Failed to send rrq els iocb.
5711 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5712 uint32_t did
, struct lpfc_node_rrq
*rrq
)
5714 struct lpfc_hba
*phba
= vport
->phba
;
5715 struct RRQ
*els_rrq
;
5717 struct lpfc_iocbq
*elsiocb
;
5723 if (ndlp
!= rrq
->ndlp
)
5725 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
5728 /* If ndlp is not NULL, we will bump the reference count on it */
5729 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
5730 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
5735 icmd
= &elsiocb
->iocb
;
5736 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5738 /* For RRQ request, remainder of payload is Exchange IDs */
5739 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
5740 pcmd
+= sizeof(uint32_t);
5741 els_rrq
= (struct RRQ
*) pcmd
;
5743 bf_set(rrq_oxid
, els_rrq
, phba
->sli4_hba
.xri_ids
[rrq
->xritag
]);
5744 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
5745 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
5746 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
5747 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
5750 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5751 "Issue RRQ: did:x%x",
5752 did
, rrq
->xritag
, rrq
->rxid
);
5753 elsiocb
->context_un
.rrq
= rrq
;
5754 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
5755 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5757 if (ret
== IOCB_ERROR
) {
5758 lpfc_els_free_iocb(phba
, elsiocb
);
5765 * lpfc_send_rrq - Sends ELS RRQ if needed.
5766 * @phba: pointer to lpfc hba data structure.
5767 * @rrq: pointer to the active rrq.
5769 * This routine will call the lpfc_issue_els_rrq if the rrq is
5770 * still active for the xri. If this function returns a failure then
5771 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
5773 * Returns 0 Success.
5777 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
5779 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
5781 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
5782 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
5789 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
5790 * @vport: pointer to a host virtual N_Port data structure.
5791 * @cmdsize: size of the ELS command.
5792 * @oldiocb: pointer to the original lpfc command iocb data structure.
5793 * @ndlp: pointer to a node-list data structure.
5795 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
5796 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
5798 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5799 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5800 * will be stored into the context1 field of the IOCB for the completion
5801 * callback function to the RPL Accept Response ELS command.
5804 * 0 - Successfully issued ACC RPL ELS command
5805 * 1 - Failed to issue ACC RPL ELS command
5808 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
5809 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
5811 struct lpfc_hba
*phba
= vport
->phba
;
5812 IOCB_t
*icmd
, *oldcmd
;
5814 struct lpfc_iocbq
*elsiocb
;
5817 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
5818 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5823 icmd
= &elsiocb
->iocb
;
5824 oldcmd
= &oldiocb
->iocb
;
5825 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri / rx_id */
5826 icmd
->unsli3
.rcvsli3
.ox_id
= oldcmd
->unsli3
.rcvsli3
.ox_id
;
5828 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5829 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5830 pcmd
+= sizeof(uint16_t);
5831 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
5832 pcmd
+= sizeof(uint16_t);
5834 /* Setup the RPL ACC payload */
5835 rpl_rsp
.listLen
= be32_to_cpu(1);
5837 rpl_rsp
.port_num_blk
.portNum
= 0;
5838 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
5839 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
5840 sizeof(struct lpfc_name
));
5841 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
5842 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
5843 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5844 "0120 Xmit ELS RPL ACC response tag x%x "
5845 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
5847 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5848 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5850 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5851 phba
->fc_stat
.elsXmitACC
++;
5852 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
5854 lpfc_els_free_iocb(phba
, elsiocb
);
5861 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
5862 * @vport: pointer to a host virtual N_Port data structure.
5863 * @cmdiocb: pointer to lpfc command iocb data structure.
5864 * @ndlp: pointer to a node-list data structure.
5866 * This routine processes Read Port List (RPL) IOCB received as an ELS
5867 * unsolicited event. It first checks the remote port state. If the remote
5868 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
5869 * invokes the lpfc_els_rsp_reject() routine to send reject response.
5870 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
5871 * to accept the RPL.
5874 * 0 - Successfully processed rpl iocb (currently always return 0)
5877 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5878 struct lpfc_nodelist
*ndlp
)
5880 struct lpfc_dmabuf
*pcmd
;
5887 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5888 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
5889 /* issue rejection response */
5890 stat
.un
.b
.lsRjtRsvd0
= 0;
5891 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5892 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5893 stat
.un
.b
.vendorUnique
= 0;
5894 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5896 /* rejected the unsolicited RPL request and done with it */
5900 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5901 lp
= (uint32_t *) pcmd
->virt
;
5902 rpl
= (RPL
*) (lp
+ 1);
5903 maxsize
= be32_to_cpu(rpl
->maxsize
);
5905 /* We support only one port */
5906 if ((rpl
->index
== 0) &&
5908 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
5909 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
5911 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
5913 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
5919 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
5920 * @vport: pointer to a virtual N_Port data structure.
5921 * @cmdiocb: pointer to lpfc command iocb data structure.
5922 * @ndlp: pointer to a node-list data structure.
5924 * This routine processes Fibre Channel Address Resolution Protocol
5925 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
5926 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
5927 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
5928 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
5929 * remote PortName is compared against the FC PortName stored in the @vport
5930 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
5931 * compared against the FC NodeName stored in the @vport data structure.
5932 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
5933 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
5934 * invoked to send out FARP Response to the remote node. Before sending the
5935 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
5936 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
5937 * routine is invoked to log into the remote port first.
5940 * 0 - Either the FARP Match Mode not supported or successfully processed
5943 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5944 struct lpfc_nodelist
*ndlp
)
5946 struct lpfc_dmabuf
*pcmd
;
5950 uint32_t cmd
, cnt
, did
;
5952 icmd
= &cmdiocb
->iocb
;
5953 did
= icmd
->un
.elsreq64
.remoteID
;
5954 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5955 lp
= (uint32_t *) pcmd
->virt
;
5959 /* FARP-REQ received from DID <did> */
5960 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5961 "0601 FARP-REQ received from DID x%x\n", did
);
5962 /* We will only support match on WWPN or WWNN */
5963 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
5968 /* If this FARP command is searching for my portname */
5969 if (fp
->Mflags
& FARP_MATCH_PORT
) {
5970 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
5971 sizeof(struct lpfc_name
)) == 0)
5975 /* If this FARP command is searching for my nodename */
5976 if (fp
->Mflags
& FARP_MATCH_NODE
) {
5977 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
5978 sizeof(struct lpfc_name
)) == 0)
5983 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
5984 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
5985 /* Log back into the node before sending the FARP. */
5986 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
5987 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
5988 lpfc_nlp_set_state(vport
, ndlp
,
5989 NLP_STE_PLOGI_ISSUE
);
5990 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
5993 /* Send a FARP response to that node */
5994 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
5995 lpfc_issue_els_farpr(vport
, did
, 0);
6002 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6003 * @vport: pointer to a host virtual N_Port data structure.
6004 * @cmdiocb: pointer to lpfc command iocb data structure.
6005 * @ndlp: pointer to a node-list data structure.
6007 * This routine processes Fibre Channel Address Resolution Protocol
6008 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6009 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6010 * the FARP response request.
6013 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6016 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6017 struct lpfc_nodelist
*ndlp
)
6019 struct lpfc_dmabuf
*pcmd
;
6024 icmd
= &cmdiocb
->iocb
;
6025 did
= icmd
->un
.elsreq64
.remoteID
;
6026 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
6027 lp
= (uint32_t *) pcmd
->virt
;
6030 /* FARP-RSP received from DID <did> */
6031 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6032 "0600 FARP-RSP received from DID x%x\n", did
);
6033 /* ACCEPT the Farp resp request */
6034 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
6040 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6041 * @vport: pointer to a host virtual N_Port data structure.
6042 * @cmdiocb: pointer to lpfc command iocb data structure.
6043 * @fan_ndlp: pointer to a node-list data structure.
6045 * This routine processes a Fabric Address Notification (FAN) IOCB
6046 * command received as an ELS unsolicited event. The FAN ELS command will
6047 * only be processed on a physical port (i.e., the @vport represents the
6048 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6049 * compared against those in the phba data structure. If any of those is
6050 * different, the lpfc_initial_flogi() routine is invoked to initialize
6051 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6052 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6053 * is invoked to register login to the fabric.
6056 * 0 - Successfully processed fan iocb (currently always return 0).
6059 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
6060 struct lpfc_nodelist
*fan_ndlp
)
6062 struct lpfc_hba
*phba
= vport
->phba
;
6066 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
6067 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
6069 /* FAN received; Fan does not have a reply sequence */
6070 if ((vport
== phba
->pport
) &&
6071 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
6072 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
6073 sizeof(struct lpfc_name
))) ||
6074 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
6075 sizeof(struct lpfc_name
)))) {
6076 /* This port has switched fabrics. FLOGI is required */
6077 lpfc_issue_init_vfi(vport
);
6079 /* FAN verified - skip FLOGI */
6080 vport
->fc_myDID
= vport
->fc_prevDID
;
6081 if (phba
->sli_rev
< LPFC_SLI_REV4
)
6082 lpfc_issue_fabric_reglogin(vport
);
6084 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6085 "3138 Need register VFI: (x%x/%x)\n",
6086 vport
->fc_prevDID
, vport
->fc_myDID
);
6087 lpfc_issue_reg_vfi(vport
);
6095 * lpfc_els_timeout - Handler funciton to the els timer
6096 * @ptr: holder for the timer function associated data.
6098 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6099 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6100 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6101 * up the worker thread. It is for the worker thread to invoke the routine
6102 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6105 lpfc_els_timeout(unsigned long ptr
)
6107 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
6108 struct lpfc_hba
*phba
= vport
->phba
;
6109 uint32_t tmo_posted
;
6110 unsigned long iflag
;
6112 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
6113 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
6115 vport
->work_port_events
|= WORKER_ELS_TMO
;
6116 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
6119 lpfc_worker_wake_up(phba
);
6125 * lpfc_els_timeout_handler - Process an els timeout event
6126 * @vport: pointer to a virtual N_Port data structure.
6128 * This routine is the actual handler function that processes an ELS timeout
6129 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6130 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6131 * invoking the lpfc_sli_issue_abort_iotag() routine.
6134 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
6136 struct lpfc_hba
*phba
= vport
->phba
;
6137 struct lpfc_sli_ring
*pring
;
6138 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6140 struct lpfc_dmabuf
*pcmd
;
6141 uint32_t els_command
= 0;
6143 uint32_t remote_ID
= 0xffffffff;
6144 LIST_HEAD(txcmplq_completions
);
6145 LIST_HEAD(abort_list
);
6148 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
6150 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6152 spin_lock_irq(&phba
->hbalock
);
6153 list_splice_init(&pring
->txcmplq
, &txcmplq_completions
);
6154 spin_unlock_irq(&phba
->hbalock
);
6156 list_for_each_entry_safe(piocb
, tmp_iocb
, &txcmplq_completions
, list
) {
6159 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
6160 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6161 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6164 if (piocb
->vport
!= vport
)
6167 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
6169 els_command
= *(uint32_t *) (pcmd
->virt
);
6171 if (els_command
== ELS_CMD_FARP
||
6172 els_command
== ELS_CMD_FARPR
||
6173 els_command
== ELS_CMD_FDISC
)
6176 if (piocb
->drvrTimeout
> 0) {
6177 if (piocb
->drvrTimeout
>= timeout
)
6178 piocb
->drvrTimeout
-= timeout
;
6180 piocb
->drvrTimeout
= 0;
6184 remote_ID
= 0xffffffff;
6185 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
6186 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
6188 struct lpfc_nodelist
*ndlp
;
6189 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
6190 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
6191 remote_ID
= ndlp
->nlp_DID
;
6193 list_add_tail(&piocb
->dlist
, &abort_list
);
6195 spin_lock_irq(&phba
->hbalock
);
6196 list_splice(&txcmplq_completions
, &pring
->txcmplq
);
6197 spin_unlock_irq(&phba
->hbalock
);
6199 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
6200 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6201 "0127 ELS timeout Data: x%x x%x x%x "
6202 "x%x\n", els_command
,
6203 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
6204 spin_lock_irq(&phba
->hbalock
);
6205 list_del_init(&piocb
->dlist
);
6206 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6207 spin_unlock_irq(&phba
->hbalock
);
6210 if (phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
)
6211 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
6215 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6216 * @vport: pointer to a host virtual N_Port data structure.
6218 * This routine is used to clean up all the outstanding ELS commands on a
6219 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6220 * routine. After that, it walks the ELS transmit queue to remove all the
6221 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6222 * the IOCBs with a non-NULL completion callback function, the callback
6223 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6224 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6225 * callback function, the IOCB will simply be released. Finally, it walks
6226 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6227 * completion queue IOCB that is associated with the @vport and is not
6228 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6229 * part of the discovery state machine) out to HBA by invoking the
6230 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6231 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6232 * the IOCBs are aborted when this function returns.
6235 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
6237 LIST_HEAD(completions
);
6238 struct lpfc_hba
*phba
= vport
->phba
;
6239 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6240 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6243 lpfc_fabric_abort_vport(vport
);
6245 spin_lock_irq(&phba
->hbalock
);
6246 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
6249 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
6253 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
6254 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
6255 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
6256 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
6257 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
6260 if (piocb
->vport
!= vport
)
6263 list_move_tail(&piocb
->list
, &completions
);
6267 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6268 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
6272 if (piocb
->vport
!= vport
)
6275 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6277 spin_unlock_irq(&phba
->hbalock
);
6279 /* Cancell all the IOCBs from the completions list */
6280 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6287 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
6288 * @phba: pointer to lpfc hba data structure.
6290 * This routine is used to clean up all the outstanding ELS commands on a
6291 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
6292 * routine. After that, it walks the ELS transmit queue to remove all the
6293 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
6294 * the IOCBs with the completion callback function associated, the callback
6295 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6296 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
6297 * callback function associated, the IOCB will simply be released. Finally,
6298 * it walks the ELS transmit completion queue to issue an abort IOCB to any
6299 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
6300 * management plane IOCBs that are not part of the discovery state machine)
6301 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
6304 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
6306 LIST_HEAD(completions
);
6307 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6308 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6311 lpfc_fabric_abort_hba(phba
);
6312 spin_lock_irq(&phba
->hbalock
);
6313 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
6315 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6317 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
6318 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
6319 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
6320 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
6321 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
6323 list_move_tail(&piocb
->list
, &completions
);
6326 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6327 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6329 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6331 spin_unlock_irq(&phba
->hbalock
);
6333 /* Cancel all the IOCBs from the completions list */
6334 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6341 * lpfc_send_els_failure_event - Posts an ELS command failure event
6342 * @phba: Pointer to hba context object.
6343 * @cmdiocbp: Pointer to command iocb which reported error.
6344 * @rspiocbp: Pointer to response iocb which reported error.
6346 * This function sends an event when there is an ELS command
6350 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
6351 struct lpfc_iocbq
*cmdiocbp
,
6352 struct lpfc_iocbq
*rspiocbp
)
6354 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
6355 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6356 struct lpfc_lsrjt_event lsrjt_event
;
6357 struct lpfc_fabric_event_header fabric_event
;
6359 struct lpfc_nodelist
*ndlp
;
6362 ndlp
= cmdiocbp
->context1
;
6363 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6366 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
6367 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
6368 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
6369 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
6370 sizeof(struct lpfc_name
));
6371 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
6372 sizeof(struct lpfc_name
));
6373 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
6374 cmdiocbp
->context2
)->virt
);
6375 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
6376 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
6377 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
6378 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
6379 fc_host_post_vendor_event(shost
,
6380 fc_get_event_number(),
6381 sizeof(lsrjt_event
),
6382 (char *)&lsrjt_event
,
6386 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
6387 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
6388 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
6389 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
6390 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
6392 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
6393 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
6394 sizeof(struct lpfc_name
));
6395 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
6396 sizeof(struct lpfc_name
));
6397 fc_host_post_vendor_event(shost
,
6398 fc_get_event_number(),
6399 sizeof(fabric_event
),
6400 (char *)&fabric_event
,
6408 * lpfc_send_els_event - Posts unsolicited els event
6409 * @vport: Pointer to vport object.
6410 * @ndlp: Pointer FC node object.
6411 * @cmd: ELS command code.
6413 * This function posts an event when there is an incoming
6414 * unsolicited ELS command.
6417 lpfc_send_els_event(struct lpfc_vport
*vport
,
6418 struct lpfc_nodelist
*ndlp
,
6421 struct lpfc_els_event_header
*els_data
= NULL
;
6422 struct lpfc_logo_event
*logo_data
= NULL
;
6423 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6425 if (*payload
== ELS_CMD_LOGO
) {
6426 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
6428 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6429 "0148 Failed to allocate memory "
6430 "for LOGO event\n");
6433 els_data
= &logo_data
->header
;
6435 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
6438 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6439 "0149 Failed to allocate memory "
6444 els_data
->event_type
= FC_REG_ELS_EVENT
;
6447 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
6450 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
6453 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
6456 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
6457 /* Copy the WWPN in the LOGO payload */
6458 memcpy(logo_data
->logo_wwpn
, &payload
[2],
6459 sizeof(struct lpfc_name
));
6465 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
6466 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
6467 if (*payload
== ELS_CMD_LOGO
) {
6468 fc_host_post_vendor_event(shost
,
6469 fc_get_event_number(),
6470 sizeof(struct lpfc_logo_event
),
6475 fc_host_post_vendor_event(shost
,
6476 fc_get_event_number(),
6477 sizeof(struct lpfc_els_event_header
),
6488 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
6489 * @phba: pointer to lpfc hba data structure.
6490 * @pring: pointer to a SLI ring.
6491 * @vport: pointer to a host virtual N_Port data structure.
6492 * @elsiocb: pointer to lpfc els command iocb data structure.
6494 * This routine is used for processing the IOCB associated with a unsolicited
6495 * event. It first determines whether there is an existing ndlp that matches
6496 * the DID from the unsolicited IOCB. If not, it will create a new one with
6497 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
6498 * IOCB is then used to invoke the proper routine and to set up proper state
6499 * of the discovery state machine.
6502 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6503 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
6505 struct Scsi_Host
*shost
;
6506 struct lpfc_nodelist
*ndlp
;
6509 uint32_t cmd
, did
, newnode
, rjt_err
= 0;
6510 IOCB_t
*icmd
= &elsiocb
->iocb
;
6512 if (!vport
|| !(elsiocb
->context2
))
6516 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
6518 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
6519 lpfc_post_buffer(phba
, pring
, 1);
6521 did
= icmd
->un
.rcvels
.remoteID
;
6522 if (icmd
->ulpStatus
) {
6523 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6524 "RCV Unsol ELS: status:x%x/x%x did:x%x",
6525 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
6529 /* Check to see if link went down during discovery */
6530 if (lpfc_els_chk_latt(vport
))
6533 /* Ignore traffic received during vport shutdown. */
6534 if (vport
->load_flag
& FC_UNLOADING
)
6537 /* If NPort discovery is delayed drop incoming ELS */
6538 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
6539 (cmd
!= ELS_CMD_PLOGI
))
6542 ndlp
= lpfc_findnode_did(vport
, did
);
6544 /* Cannot find existing Fabric ndlp, so allocate a new one */
6545 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6549 lpfc_nlp_init(vport
, ndlp
, did
);
6550 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6552 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6553 ndlp
->nlp_type
|= NLP_FABRIC
;
6554 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6555 ndlp
= lpfc_enable_node(vport
, ndlp
,
6556 NLP_STE_UNUSED_NODE
);
6559 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6561 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6562 ndlp
->nlp_type
|= NLP_FABRIC
;
6563 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
6564 /* This is similar to the new node path */
6565 ndlp
= lpfc_nlp_get(ndlp
);
6568 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6572 phba
->fc_stat
.elsRcvFrame
++;
6574 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
6575 elsiocb
->vport
= vport
;
6577 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
6578 cmd
&= ELS_CMD_MASK
;
6580 /* ELS command <elsCmd> received from NPORT <did> */
6581 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6582 "0112 ELS command x%x received from NPORT x%x "
6583 "Data: x%x\n", cmd
, did
, vport
->port_state
);
6586 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6587 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
6588 did
, vport
->port_state
, ndlp
->nlp_flag
);
6590 phba
->fc_stat
.elsRcvPLOGI
++;
6591 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
6593 lpfc_send_els_event(vport
, ndlp
, payload
);
6595 /* If Nport discovery is delayed, reject PLOGIs */
6596 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6597 rjt_err
= LSRJT_UNABLE_TPC
;
6600 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6601 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
6602 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
6603 rjt_err
= LSRJT_UNABLE_TPC
;
6606 /* We get here, and drop thru, if we are PT2PT with
6607 * another NPort and the other side has initiated
6608 * the PLOGI before responding to our FLOGI.
6612 shost
= lpfc_shost_from_vport(vport
);
6613 spin_lock_irq(shost
->host_lock
);
6614 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
6615 spin_unlock_irq(shost
->host_lock
);
6617 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6622 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6623 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
6624 did
, vport
->port_state
, ndlp
->nlp_flag
);
6626 phba
->fc_stat
.elsRcvFLOGI
++;
6627 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
6632 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6633 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
6634 did
, vport
->port_state
, ndlp
->nlp_flag
);
6636 phba
->fc_stat
.elsRcvLOGO
++;
6637 lpfc_send_els_event(vport
, ndlp
, payload
);
6638 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6639 rjt_err
= LSRJT_UNABLE_TPC
;
6642 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
6645 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6646 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
6647 did
, vport
->port_state
, ndlp
->nlp_flag
);
6649 phba
->fc_stat
.elsRcvPRLO
++;
6650 lpfc_send_els_event(vport
, ndlp
, payload
);
6651 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6652 rjt_err
= LSRJT_UNABLE_TPC
;
6655 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
6658 phba
->fc_stat
.elsRcvRSCN
++;
6659 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
6664 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6665 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
6666 did
, vport
->port_state
, ndlp
->nlp_flag
);
6668 lpfc_send_els_event(vport
, ndlp
, payload
);
6669 phba
->fc_stat
.elsRcvADISC
++;
6670 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6671 rjt_err
= LSRJT_UNABLE_TPC
;
6674 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6678 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6679 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
6680 did
, vport
->port_state
, ndlp
->nlp_flag
);
6682 phba
->fc_stat
.elsRcvPDISC
++;
6683 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6684 rjt_err
= LSRJT_UNABLE_TPC
;
6687 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6691 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6692 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
6693 did
, vport
->port_state
, ndlp
->nlp_flag
);
6695 phba
->fc_stat
.elsRcvFARPR
++;
6696 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
6699 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6700 "RCV FARP: did:x%x/ste:x%x flg:x%x",
6701 did
, vport
->port_state
, ndlp
->nlp_flag
);
6703 phba
->fc_stat
.elsRcvFARP
++;
6704 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
6707 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6708 "RCV FAN: did:x%x/ste:x%x flg:x%x",
6709 did
, vport
->port_state
, ndlp
->nlp_flag
);
6711 phba
->fc_stat
.elsRcvFAN
++;
6712 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
6715 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6716 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
6717 did
, vport
->port_state
, ndlp
->nlp_flag
);
6719 phba
->fc_stat
.elsRcvPRLI
++;
6720 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6721 rjt_err
= LSRJT_UNABLE_TPC
;
6724 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
6727 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6728 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
6729 did
, vport
->port_state
, ndlp
->nlp_flag
);
6731 phba
->fc_stat
.elsRcvLIRR
++;
6732 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
6737 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6738 "RCV RLS: did:x%x/ste:x%x flg:x%x",
6739 did
, vport
->port_state
, ndlp
->nlp_flag
);
6741 phba
->fc_stat
.elsRcvRLS
++;
6742 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
6747 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6748 "RCV RPS: did:x%x/ste:x%x flg:x%x",
6749 did
, vport
->port_state
, ndlp
->nlp_flag
);
6751 phba
->fc_stat
.elsRcvRPS
++;
6752 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
6757 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6758 "RCV RPL: did:x%x/ste:x%x flg:x%x",
6759 did
, vport
->port_state
, ndlp
->nlp_flag
);
6761 phba
->fc_stat
.elsRcvRPL
++;
6762 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
6767 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6768 "RCV RNID: did:x%x/ste:x%x flg:x%x",
6769 did
, vport
->port_state
, ndlp
->nlp_flag
);
6771 phba
->fc_stat
.elsRcvRNID
++;
6772 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
6777 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6778 "RCV RTV: did:x%x/ste:x%x flg:x%x",
6779 did
, vport
->port_state
, ndlp
->nlp_flag
);
6780 phba
->fc_stat
.elsRcvRTV
++;
6781 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
6786 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6787 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
6788 did
, vport
->port_state
, ndlp
->nlp_flag
);
6790 phba
->fc_stat
.elsRcvRRQ
++;
6791 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
6796 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6797 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
6798 did
, vport
->port_state
, ndlp
->nlp_flag
);
6800 phba
->fc_stat
.elsRcvECHO
++;
6801 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
6806 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6807 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
6808 cmd
, did
, vport
->port_state
);
6810 /* Unsupported ELS command, reject */
6811 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
6813 /* Unknown ELS command <elsCmd> received from NPORT <did> */
6814 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6815 "0115 Unknown ELS command x%x "
6816 "received from NPORT x%x\n", cmd
, did
);
6822 /* check if need to LS_RJT received ELS cmd */
6824 memset(&stat
, 0, sizeof(stat
));
6825 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
6826 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_NOTHING_MORE
;
6827 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
6831 lpfc_nlp_put(elsiocb
->context1
);
6832 elsiocb
->context1
= NULL
;
6836 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
6837 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6838 "0111 Dropping received ELS cmd "
6839 "Data: x%x x%x x%x\n",
6840 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
6841 phba
->fc_stat
.elsRcvDrop
++;
6845 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
6846 * @phba: pointer to lpfc hba data structure.
6847 * @pring: pointer to a SLI ring.
6848 * @elsiocb: pointer to lpfc els iocb data structure.
6850 * This routine is used to process an unsolicited event received from a SLI
6851 * (Service Level Interface) ring. The actual processing of the data buffer
6852 * associated with the unsolicited event is done by invoking the routine
6853 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
6854 * SLI ring on which the unsolicited event was received.
6857 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6858 struct lpfc_iocbq
*elsiocb
)
6860 struct lpfc_vport
*vport
= phba
->pport
;
6861 IOCB_t
*icmd
= &elsiocb
->iocb
;
6863 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
6864 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
6866 elsiocb
->context1
= NULL
;
6867 elsiocb
->context2
= NULL
;
6868 elsiocb
->context3
= NULL
;
6870 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
6871 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
6872 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
6873 (icmd
->un
.ulpWord
[4] & 0xff) == IOERR_RCV_BUFFER_WAITING
) {
6874 phba
->fc_stat
.NoRcvBuf
++;
6875 /* Not enough posted buffers; Try posting more buffers */
6876 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
6877 lpfc_post_buffer(phba
, pring
, 0);
6881 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
6882 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
6883 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
6884 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
6885 vport
= phba
->pport
;
6887 vport
= lpfc_find_vport_by_vpid(phba
,
6888 icmd
->unsli3
.rcvsli3
.vpi
);
6891 /* If there are no BDEs associated
6892 * with this IOCB, there is nothing to do.
6894 if (icmd
->ulpBdeCount
== 0)
6897 /* type of ELS cmd is first 32bit word
6900 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
6901 elsiocb
->context2
= bdeBuf1
;
6903 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
6904 icmd
->un
.cont64
[0].addrLow
);
6905 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
6909 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
6911 * The different unsolicited event handlers would tell us
6912 * if they are done with "mp" by setting context2 to NULL.
6914 if (elsiocb
->context2
) {
6915 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
6916 elsiocb
->context2
= NULL
;
6919 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
6920 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
6921 icmd
->ulpBdeCount
== 2) {
6922 elsiocb
->context2
= bdeBuf2
;
6923 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
6924 /* free mp if we are done with it */
6925 if (elsiocb
->context2
) {
6926 lpfc_in_buf_free(phba
, elsiocb
->context2
);
6927 elsiocb
->context2
= NULL
;
6933 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
6934 * @phba: pointer to lpfc hba data structure.
6935 * @vport: pointer to a virtual N_Port data structure.
6937 * This routine issues a Port Login (PLOGI) to the Name Server with
6938 * State Change Request (SCR) for a @vport. This routine will create an
6939 * ndlp for the Name Server associated to the @vport if such node does
6940 * not already exist. The PLOGI to Name Server is issued by invoking the
6941 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
6942 * (FDMI) is configured to the @vport, a FDMI node will be created and
6943 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
6946 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
6948 struct lpfc_nodelist
*ndlp
, *ndlp_fdmi
;
6949 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6952 * If lpfc_delay_discovery parameter is set and the clean address
6953 * bit is cleared and fc fabric parameters chenged, delay FC NPort
6956 spin_lock_irq(shost
->host_lock
);
6957 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6958 spin_unlock_irq(shost
->host_lock
);
6959 mod_timer(&vport
->delayed_disc_tmo
,
6960 jiffies
+ HZ
* phba
->fc_ratov
);
6963 spin_unlock_irq(shost
->host_lock
);
6965 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
6967 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6969 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6970 lpfc_disc_start(vport
);
6973 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6974 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6975 "0251 NameServer login: no memory\n");
6978 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
6979 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6980 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
6982 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6983 lpfc_disc_start(vport
);
6986 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6987 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6988 "0348 NameServer login: node freed\n");
6992 ndlp
->nlp_type
|= NLP_FABRIC
;
6994 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
6996 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
6997 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6998 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6999 "0252 Cannot issue NameServer login\n");
7003 if (vport
->cfg_fdmi_on
) {
7004 /* If this is the first time, allocate an ndlp and initialize
7005 * it. Otherwise, make sure the node is enabled and then do the
7008 ndlp_fdmi
= lpfc_findnode_did(vport
, FDMI_DID
);
7010 ndlp_fdmi
= mempool_alloc(phba
->nlp_mem_pool
,
7013 lpfc_nlp_init(vport
, ndlp_fdmi
, FDMI_DID
);
7014 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
7018 if (!NLP_CHK_NODE_ACT(ndlp_fdmi
))
7019 ndlp_fdmi
= lpfc_enable_node(vport
,
7024 lpfc_nlp_set_state(vport
, ndlp_fdmi
,
7025 NLP_STE_PLOGI_ISSUE
);
7026 lpfc_issue_els_plogi(vport
, ndlp_fdmi
->nlp_DID
, 0);
7032 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7033 * @phba: pointer to lpfc hba data structure.
7034 * @pmb: pointer to the driver internal queue element for mailbox command.
7036 * This routine is the completion callback function to register new vport
7037 * mailbox command. If the new vport mailbox command completes successfully,
7038 * the fabric registration login shall be performed on physical port (the
7039 * new vport created is actually a physical port, with VPI 0) or the port
7040 * login to Name Server for State Change Request (SCR) will be performed
7041 * on virtual port (real virtual port, with VPI greater than 0).
7044 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
7046 struct lpfc_vport
*vport
= pmb
->vport
;
7047 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7048 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
7049 MAILBOX_t
*mb
= &pmb
->u
.mb
;
7052 spin_lock_irq(shost
->host_lock
);
7053 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7054 spin_unlock_irq(shost
->host_lock
);
7056 if (mb
->mbxStatus
) {
7057 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7058 "0915 Register VPI failed : Status: x%x"
7059 " upd bit: x%x \n", mb
->mbxStatus
,
7060 mb
->un
.varRegVpi
.upd
);
7061 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
7062 mb
->un
.varRegVpi
.upd
)
7063 goto mbox_err_exit
;
7065 switch (mb
->mbxStatus
) {
7066 case 0x11: /* unsupported feature */
7067 case 0x9603: /* max_vpi exceeded */
7068 case 0x9602: /* Link event since CLEAR_LA */
7069 /* giving up on vport registration */
7070 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7071 spin_lock_irq(shost
->host_lock
);
7072 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
7073 spin_unlock_irq(shost
->host_lock
);
7074 lpfc_can_disctmo(vport
);
7076 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7078 spin_lock_irq(shost
->host_lock
);
7079 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7080 spin_unlock_irq(shost
->host_lock
);
7081 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
7083 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
7084 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
7086 if (rc
== MBX_NOT_FINISHED
) {
7087 lpfc_printf_vlog(vport
,
7089 "2732 Failed to issue INIT_VPI"
7090 " mailbox command\n");
7097 /* Try to recover from this error */
7098 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7099 lpfc_sli4_unreg_all_rpis(vport
);
7100 lpfc_mbx_unreg_vpi(vport
);
7101 spin_lock_irq(shost
->host_lock
);
7102 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7103 spin_unlock_irq(shost
->host_lock
);
7104 if (vport
->port_type
== LPFC_PHYSICAL_PORT
7105 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
7106 lpfc_issue_init_vfi(vport
);
7108 lpfc_initial_fdisc(vport
);
7112 spin_lock_irq(shost
->host_lock
);
7113 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
7114 spin_unlock_irq(shost
->host_lock
);
7115 if (vport
== phba
->pport
) {
7116 if (phba
->sli_rev
< LPFC_SLI_REV4
)
7117 lpfc_issue_fabric_reglogin(vport
);
7120 * If the physical port is instantiated using
7121 * FDISC, do not start vport discovery.
7123 if (vport
->port_state
!= LPFC_FDISC
)
7124 lpfc_start_fdiscs(phba
);
7125 lpfc_do_scr_ns_plogi(phba
, vport
);
7128 lpfc_do_scr_ns_plogi(phba
, vport
);
7131 /* Now, we decrement the ndlp reference count held for this
7136 mempool_free(pmb
, phba
->mbox_mem_pool
);
7141 * lpfc_register_new_vport - Register a new vport with a HBA
7142 * @phba: pointer to lpfc hba data structure.
7143 * @vport: pointer to a host virtual N_Port data structure.
7144 * @ndlp: pointer to a node-list data structure.
7146 * This routine registers the @vport as a new virtual port with a HBA.
7147 * It is done through a registering vpi mailbox command.
7150 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
7151 struct lpfc_nodelist
*ndlp
)
7153 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7156 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
7158 lpfc_reg_vpi(vport
, mbox
);
7159 mbox
->vport
= vport
;
7160 mbox
->context2
= lpfc_nlp_get(ndlp
);
7161 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
7162 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
7163 == MBX_NOT_FINISHED
) {
7164 /* mailbox command not success, decrement ndlp
7165 * reference count for this command
7168 mempool_free(mbox
, phba
->mbox_mem_pool
);
7170 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7171 "0253 Register VPI: Can't send mbox\n");
7175 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
7176 "0254 Register VPI: no memory\n");
7182 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7183 spin_lock_irq(shost
->host_lock
);
7184 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
7185 spin_unlock_irq(shost
->host_lock
);
7190 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
7191 * @phba: pointer to lpfc hba data structure.
7193 * This routine cancels the retry delay timers to all the vports.
7196 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
7198 struct lpfc_vport
**vports
;
7199 struct lpfc_nodelist
*ndlp
;
7200 uint32_t link_state
;
7203 /* Treat this failure as linkdown for all vports */
7204 link_state
= phba
->link_state
;
7205 lpfc_linkdown(phba
);
7206 phba
->link_state
= link_state
;
7208 vports
= lpfc_create_vport_work_array(phba
);
7211 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
7212 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
7214 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
7215 lpfc_els_flush_cmd(vports
[i
]);
7217 lpfc_destroy_vport_work_array(phba
, vports
);
7222 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
7223 * @phba: pointer to lpfc hba data structure.
7225 * This routine abort all pending discovery commands and
7226 * start a timer to retry FLOGI for the physical port
7230 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
7232 struct lpfc_nodelist
*ndlp
;
7233 struct Scsi_Host
*shost
;
7235 /* Cancel the all vports retry delay retry timers */
7236 lpfc_cancel_all_vport_retry_delay_timer(phba
);
7238 /* If fabric require FLOGI, then re-instantiate physical login */
7239 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
7243 shost
= lpfc_shost_from_vport(phba
->pport
);
7244 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
7245 spin_lock_irq(shost
->host_lock
);
7246 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
7247 spin_unlock_irq(shost
->host_lock
);
7248 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
7249 phba
->pport
->port_state
= LPFC_FLOGI
;
7254 * lpfc_fabric_login_reqd - Check if FLOGI required.
7255 * @phba: pointer to lpfc hba data structure.
7256 * @cmdiocb: pointer to FDISC command iocb.
7257 * @rspiocb: pointer to FDISC response iocb.
7259 * This routine checks if a FLOGI is reguired for FDISC
7263 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
7264 struct lpfc_iocbq
*cmdiocb
,
7265 struct lpfc_iocbq
*rspiocb
)
7268 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
7269 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
7276 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
7277 * @phba: pointer to lpfc hba data structure.
7278 * @cmdiocb: pointer to lpfc command iocb data structure.
7279 * @rspiocb: pointer to lpfc response iocb data structure.
7281 * This routine is the completion callback function to a Fabric Discover
7282 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
7283 * single threaded, each FDISC completion callback function will reset
7284 * the discovery timer for all vports such that the timers will not get
7285 * unnecessary timeout. The function checks the FDISC IOCB status. If error
7286 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
7287 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
7288 * assigned to the vport has been changed with the completion of the FDISC
7289 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
7290 * are unregistered from the HBA, and then the lpfc_register_new_vport()
7291 * routine is invoked to register new vport with the HBA. Otherwise, the
7292 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
7293 * Server for State Change Request (SCR).
7296 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7297 struct lpfc_iocbq
*rspiocb
)
7299 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7300 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7301 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
7302 struct lpfc_nodelist
*np
;
7303 struct lpfc_nodelist
*next_np
;
7304 IOCB_t
*irsp
= &rspiocb
->iocb
;
7305 struct lpfc_iocbq
*piocb
;
7306 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
7307 struct serv_parm
*sp
;
7308 uint8_t fabric_param_changed
;
7310 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7311 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
7312 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7314 /* Since all FDISCs are being single threaded, we
7315 * must reset the discovery timer for ALL vports
7316 * waiting to send FDISC when one completes.
7318 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
7319 lpfc_set_disctmo(piocb
->vport
);
7322 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7323 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
7324 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
7326 if (irsp
->ulpStatus
) {
7328 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
7329 lpfc_retry_pport_discovery(phba
);
7333 /* Check for retry */
7334 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
7337 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7338 "0126 FDISC failed. (x%x/x%x)\n",
7339 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7342 spin_lock_irq(shost
->host_lock
);
7343 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
7344 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
7345 vport
->fc_flag
|= FC_FABRIC
;
7346 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
7347 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
7348 spin_unlock_irq(shost
->host_lock
);
7350 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
7351 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
7352 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
7353 sp
= prsp
->virt
+ sizeof(uint32_t);
7354 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
7355 memcpy(&vport
->fabric_portname
, &sp
->portName
,
7356 sizeof(struct lpfc_name
));
7357 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
7358 sizeof(struct lpfc_name
));
7359 if (fabric_param_changed
&&
7360 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7361 /* If our NportID changed, we need to ensure all
7362 * remaining NPORTs get unreg_login'ed so we can
7365 list_for_each_entry_safe(np
, next_np
,
7366 &vport
->fc_nodes
, nlp_listp
) {
7367 if (!NLP_CHK_NODE_ACT(ndlp
) ||
7368 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
7369 !(np
->nlp_flag
& NLP_NPR_ADISC
))
7371 spin_lock_irq(shost
->host_lock
);
7372 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
7373 spin_unlock_irq(shost
->host_lock
);
7374 lpfc_unreg_rpi(vport
, np
);
7376 lpfc_cleanup_pending_mbox(vport
);
7378 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7379 lpfc_sli4_unreg_all_rpis(vport
);
7381 lpfc_mbx_unreg_vpi(vport
);
7382 spin_lock_irq(shost
->host_lock
);
7383 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7384 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7385 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
7387 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
7388 spin_unlock_irq(shost
->host_lock
);
7389 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
7390 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7392 * Driver needs to re-reg VPI in order for f/w
7393 * to update the MAC address.
7395 lpfc_register_new_vport(phba
, vport
, ndlp
);
7399 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
7400 lpfc_issue_init_vpi(vport
);
7401 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
7402 lpfc_register_new_vport(phba
, vport
, ndlp
);
7404 lpfc_do_scr_ns_plogi(phba
, vport
);
7407 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7408 /* Cancel discovery timer */
7409 lpfc_can_disctmo(vport
);
7412 lpfc_els_free_iocb(phba
, cmdiocb
);
7416 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
7417 * @vport: pointer to a virtual N_Port data structure.
7418 * @ndlp: pointer to a node-list data structure.
7419 * @retry: number of retries to the command IOCB.
7421 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
7422 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
7423 * routine to issue the IOCB, which makes sure only one outstanding fabric
7424 * IOCB will be sent off HBA at any given time.
7426 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7427 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7428 * will be stored into the context1 field of the IOCB for the completion
7429 * callback function to the FDISC ELS command.
7432 * 0 - Successfully issued fdisc iocb command
7433 * 1 - Failed to issue fdisc iocb command
7436 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
7439 struct lpfc_hba
*phba
= vport
->phba
;
7441 struct lpfc_iocbq
*elsiocb
;
7442 struct serv_parm
*sp
;
7445 int did
= ndlp
->nlp_DID
;
7448 vport
->port_state
= LPFC_FDISC
;
7449 vport
->fc_myDID
= 0;
7450 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
7451 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
7454 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7455 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7456 "0255 Issue FDISC: no IOCB\n");
7460 icmd
= &elsiocb
->iocb
;
7461 icmd
->un
.elsreq64
.myID
= 0;
7462 icmd
->un
.elsreq64
.fl
= 1;
7465 * SLI3 ports require a different context type value than SLI4.
7466 * Catch SLI3 ports here and override the prep.
7468 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
7473 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7474 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
7475 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
7476 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
7477 sp
= (struct serv_parm
*) pcmd
;
7478 /* Setup CSPs accordingly for Fabric */
7479 sp
->cmn
.e_d_tov
= 0;
7480 sp
->cmn
.w2
.r_a_tov
= 0;
7481 sp
->cmn
.virtual_fabric_support
= 0;
7482 sp
->cls1
.classValid
= 0;
7483 sp
->cls2
.seqDelivery
= 1;
7484 sp
->cls3
.seqDelivery
= 1;
7486 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
7487 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
7488 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
7489 pcmd
+= sizeof(uint32_t); /* Port Name */
7490 memcpy(pcmd
, &vport
->fc_portname
, 8);
7491 pcmd
+= sizeof(uint32_t); /* Node Name */
7492 pcmd
+= sizeof(uint32_t); /* Node Name */
7493 memcpy(pcmd
, &vport
->fc_nodename
, 8);
7495 lpfc_set_disctmo(vport
);
7497 phba
->fc_stat
.elsXmitFDISC
++;
7498 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
7500 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7501 "Issue FDISC: did:x%x",
7504 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
7505 if (rc
== IOCB_ERROR
) {
7506 lpfc_els_free_iocb(phba
, elsiocb
);
7507 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7508 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7509 "0256 Issue FDISC: Cannot send IOCB\n");
7512 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
7517 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
7518 * @phba: pointer to lpfc hba data structure.
7519 * @cmdiocb: pointer to lpfc command iocb data structure.
7520 * @rspiocb: pointer to lpfc response iocb data structure.
7522 * This routine is the completion callback function to the issuing of a LOGO
7523 * ELS command off a vport. It frees the command IOCB and then decrement the
7524 * reference count held on ndlp for this completion function, indicating that
7525 * the reference to the ndlp is no long needed. Note that the
7526 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
7527 * callback function and an additional explicit ndlp reference decrementation
7528 * will trigger the actual release of the ndlp.
7531 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7532 struct lpfc_iocbq
*rspiocb
)
7534 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7536 struct lpfc_nodelist
*ndlp
;
7537 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7539 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
7540 irsp
= &rspiocb
->iocb
;
7541 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7542 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
7543 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
7545 lpfc_els_free_iocb(phba
, cmdiocb
);
7546 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
7548 /* Trigger the release of the ndlp after logo */
7551 /* NPIV LOGO completes to NPort <nlp_DID> */
7552 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7553 "2928 NPIV LOGO completes to NPort x%x "
7554 "Data: x%x x%x x%x x%x\n",
7555 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7556 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
7558 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
7559 spin_lock_irq(shost
->host_lock
);
7560 vport
->fc_flag
&= ~FC_FABRIC
;
7561 spin_unlock_irq(shost
->host_lock
);
7566 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
7567 * @vport: pointer to a virtual N_Port data structure.
7568 * @ndlp: pointer to a node-list data structure.
7570 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
7572 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7573 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7574 * will be stored into the context1 field of the IOCB for the completion
7575 * callback function to the LOGO ELS command.
7578 * 0 - Successfully issued logo off the @vport
7579 * 1 - Failed to issue logo off the @vport
7582 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
7584 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7585 struct lpfc_hba
*phba
= vport
->phba
;
7587 struct lpfc_iocbq
*elsiocb
;
7591 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
7592 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
7597 icmd
= &elsiocb
->iocb
;
7598 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7599 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
7600 pcmd
+= sizeof(uint32_t);
7602 /* Fill in LOGO payload */
7603 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
7604 pcmd
+= sizeof(uint32_t);
7605 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
7607 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7608 "Issue LOGO npiv did:x%x flg:x%x",
7609 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
7611 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
7612 spin_lock_irq(shost
->host_lock
);
7613 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
7614 spin_unlock_irq(shost
->host_lock
);
7615 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
7617 spin_lock_irq(shost
->host_lock
);
7618 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
7619 spin_unlock_irq(shost
->host_lock
);
7620 lpfc_els_free_iocb(phba
, elsiocb
);
7627 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
7628 * @ptr: holder for the timer function associated data.
7630 * This routine is invoked by the fabric iocb block timer after
7631 * timeout. It posts the fabric iocb block timeout event by setting the
7632 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
7633 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
7634 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
7635 * posted event WORKER_FABRIC_BLOCK_TMO.
7638 lpfc_fabric_block_timeout(unsigned long ptr
)
7640 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
7641 unsigned long iflags
;
7642 uint32_t tmo_posted
;
7644 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
7645 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
7647 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
7648 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
7651 lpfc_worker_wake_up(phba
);
7656 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
7657 * @phba: pointer to lpfc hba data structure.
7659 * This routine issues one fabric iocb from the driver internal list to
7660 * the HBA. It first checks whether it's ready to issue one fabric iocb to
7661 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
7662 * remove one pending fabric iocb from the driver internal list and invokes
7663 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
7666 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
7668 struct lpfc_iocbq
*iocb
;
7669 unsigned long iflags
;
7675 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7676 /* Post any pending iocb to the SLI layer */
7677 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
7678 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
7681 /* Increment fabric iocb count to hold the position */
7682 atomic_inc(&phba
->fabric_iocb_count
);
7684 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7686 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7687 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7688 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7690 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7691 "Fabric sched1: ste:x%x",
7692 iocb
->vport
->port_state
, 0, 0);
7694 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7696 if (ret
== IOCB_ERROR
) {
7697 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7698 iocb
->fabric_iocb_cmpl
= NULL
;
7699 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7701 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
7702 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
7703 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
7705 atomic_dec(&phba
->fabric_iocb_count
);
7714 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
7715 * @phba: pointer to lpfc hba data structure.
7717 * This routine unblocks the issuing fabric iocb command. The function
7718 * will clear the fabric iocb block bit and then invoke the routine
7719 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
7720 * from the driver internal fabric iocb list.
7723 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
7725 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7727 lpfc_resume_fabric_iocbs(phba
);
7732 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
7733 * @phba: pointer to lpfc hba data structure.
7735 * This routine blocks the issuing fabric iocb for a specified amount of
7736 * time (currently 100 ms). This is done by set the fabric iocb block bit
7737 * and set up a timeout timer for 100ms. When the block bit is set, no more
7738 * fabric iocb will be issued out of the HBA.
7741 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
7745 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7746 /* Start a timer to unblock fabric iocbs after 100ms */
7748 mod_timer(&phba
->fabric_block_timer
, jiffies
+ HZ
/10 );
7754 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
7755 * @phba: pointer to lpfc hba data structure.
7756 * @cmdiocb: pointer to lpfc command iocb data structure.
7757 * @rspiocb: pointer to lpfc response iocb data structure.
7759 * This routine is the callback function that is put to the fabric iocb's
7760 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
7761 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
7762 * function first restores and invokes the original iocb's callback function
7763 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
7764 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
7767 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7768 struct lpfc_iocbq
*rspiocb
)
7772 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
7775 switch (rspiocb
->iocb
.ulpStatus
) {
7776 case IOSTAT_NPORT_RJT
:
7777 case IOSTAT_FABRIC_RJT
:
7778 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
7779 lpfc_block_fabric_iocbs(phba
);
7783 case IOSTAT_NPORT_BSY
:
7784 case IOSTAT_FABRIC_BSY
:
7785 lpfc_block_fabric_iocbs(phba
);
7789 stat
.un
.lsRjtError
=
7790 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
7791 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
7792 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
7793 lpfc_block_fabric_iocbs(phba
);
7797 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
7800 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
7801 cmdiocb
->fabric_iocb_cmpl
= NULL
;
7802 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7803 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
7805 atomic_dec(&phba
->fabric_iocb_count
);
7806 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
7807 /* Post any pending iocbs to HBA */
7808 lpfc_resume_fabric_iocbs(phba
);
7813 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
7814 * @phba: pointer to lpfc hba data structure.
7815 * @iocb: pointer to lpfc command iocb data structure.
7817 * This routine is used as the top-level API for issuing a fabric iocb command
7818 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
7819 * function makes sure that only one fabric bound iocb will be outstanding at
7820 * any given time. As such, this function will first check to see whether there
7821 * is already an outstanding fabric iocb on the wire. If so, it will put the
7822 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
7823 * issued later. Otherwise, it will issue the iocb on the wire and update the
7824 * fabric iocb count it indicate that there is one fabric iocb on the wire.
7826 * Note, this implementation has a potential sending out fabric IOCBs out of
7827 * order. The problem is caused by the construction of the "ready" boolen does
7828 * not include the condition that the internal fabric IOCB list is empty. As
7829 * such, it is possible a fabric IOCB issued by this routine might be "jump"
7830 * ahead of the fabric IOCBs in the internal list.
7833 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
7834 * IOCB_ERROR - failed to issue fabric iocb
7837 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
7839 unsigned long iflags
;
7843 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
7846 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7847 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
7848 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7851 /* Increment fabric iocb count to hold the position */
7852 atomic_inc(&phba
->fabric_iocb_count
);
7853 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7855 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7856 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7857 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7859 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7860 "Fabric sched2: ste:x%x",
7861 iocb
->vport
->port_state
, 0, 0);
7863 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7865 if (ret
== IOCB_ERROR
) {
7866 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7867 iocb
->fabric_iocb_cmpl
= NULL
;
7868 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7869 atomic_dec(&phba
->fabric_iocb_count
);
7872 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7873 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
7874 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7881 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
7882 * @vport: pointer to a virtual N_Port data structure.
7884 * This routine aborts all the IOCBs associated with a @vport from the
7885 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
7886 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
7887 * list, removes each IOCB associated with the @vport off the list, set the
7888 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
7889 * associated with the IOCB.
7891 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
7893 LIST_HEAD(completions
);
7894 struct lpfc_hba
*phba
= vport
->phba
;
7895 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7897 spin_lock_irq(&phba
->hbalock
);
7898 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
7901 if (piocb
->vport
!= vport
)
7904 list_move_tail(&piocb
->list
, &completions
);
7906 spin_unlock_irq(&phba
->hbalock
);
7908 /* Cancel all the IOCBs from the completions list */
7909 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7914 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
7915 * @ndlp: pointer to a node-list data structure.
7917 * This routine aborts all the IOCBs associated with an @ndlp from the
7918 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
7919 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
7920 * list, removes each IOCB associated with the @ndlp off the list, set the
7921 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
7922 * associated with the IOCB.
7924 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
7926 LIST_HEAD(completions
);
7927 struct lpfc_hba
*phba
= ndlp
->phba
;
7928 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7929 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7931 spin_lock_irq(&phba
->hbalock
);
7932 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
7934 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
7936 list_move_tail(&piocb
->list
, &completions
);
7939 spin_unlock_irq(&phba
->hbalock
);
7941 /* Cancel all the IOCBs from the completions list */
7942 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7947 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
7948 * @phba: pointer to lpfc hba data structure.
7950 * This routine aborts all the IOCBs currently on the driver internal
7951 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
7952 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
7953 * list, removes IOCBs off the list, set the status feild to
7954 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
7957 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
7959 LIST_HEAD(completions
);
7961 spin_lock_irq(&phba
->hbalock
);
7962 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
7963 spin_unlock_irq(&phba
->hbalock
);
7965 /* Cancel all the IOCBs from the completions list */
7966 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7971 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
7972 * @vport: pointer to lpfc vport data structure.
7974 * This routine is invoked by the vport cleanup for deletions and the cleanup
7975 * for an ndlp on removal.
7978 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
7980 struct lpfc_hba
*phba
= vport
->phba
;
7981 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
7982 unsigned long iflag
= 0;
7984 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7985 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7986 list_for_each_entry_safe(sglq_entry
, sglq_next
,
7987 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
7988 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
7989 sglq_entry
->ndlp
= NULL
;
7991 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7992 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7997 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
7998 * @phba: pointer to lpfc hba data structure.
7999 * @axri: pointer to the els xri abort wcqe structure.
8001 * This routine is invoked by the worker thread to process a SLI4 slow-path
8005 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
8006 struct sli4_wcqe_xri_aborted
*axri
)
8008 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
8009 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
8012 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
8013 unsigned long iflag
= 0;
8014 struct lpfc_nodelist
*ndlp
;
8015 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8017 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8018 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8019 list_for_each_entry_safe(sglq_entry
, sglq_next
,
8020 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
8021 if (sglq_entry
->sli4_xritag
== xri
) {
8022 list_del(&sglq_entry
->list
);
8023 ndlp
= sglq_entry
->ndlp
;
8024 sglq_entry
->ndlp
= NULL
;
8025 list_add_tail(&sglq_entry
->list
,
8026 &phba
->sli4_hba
.lpfc_sgl_list
);
8027 sglq_entry
->state
= SGL_FREED
;
8028 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8029 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8030 lpfc_set_rrq_active(phba
, ndlp
,
8031 sglq_entry
->sli4_lxritag
,
8034 /* Check if TXQ queue needs to be serviced */
8036 lpfc_worker_wake_up(phba
);
8040 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
8041 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
8042 if (lxri
== NO_XRI
) {
8043 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8046 sglq_entry
= __lpfc_get_active_sglq(phba
, lxri
);
8047 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
8048 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8051 sglq_entry
->state
= SGL_XRI_ABORTED
;
8052 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8056 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8057 * @vport: pointer to virtual port object.
8058 * @ndlp: nodelist pointer for the impacted node.
8060 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8061 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8062 * the driver is required to send a LOGO to the remote node before it
8063 * attempts to recover its login to the remote node.
8066 lpfc_sli_abts_recover_port(struct lpfc_vport
*vport
,
8067 struct lpfc_nodelist
*ndlp
)
8069 struct Scsi_Host
*shost
;
8070 struct lpfc_hba
*phba
;
8071 unsigned long flags
= 0;
8073 shost
= lpfc_shost_from_vport(vport
);
8075 if (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
) {
8076 lpfc_printf_log(phba
, KERN_INFO
,
8077 LOG_SLI
, "3093 No rport recovery needed. "
8078 "rport in state 0x%x\n", ndlp
->nlp_state
);
8081 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8082 "3094 Start rport recovery on shost id 0x%x "
8083 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8085 shost
->host_no
, ndlp
->nlp_DID
,
8086 vport
->vpi
, ndlp
->nlp_rpi
, ndlp
->nlp_state
,
8089 * The rport is not responding. Remove the FCP-2 flag to prevent
8090 * an ADISC in the follow-up recovery code.
8092 spin_lock_irqsave(shost
->host_lock
, flags
);
8093 ndlp
->nlp_fcp_info
&= ~NLP_FCP_2_DEVICE
;
8094 spin_unlock_irqrestore(shost
->host_lock
, flags
);
8095 lpfc_issue_els_logo(vport
, ndlp
, 0);
8096 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_LOGO_ISSUE
);