1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 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
);
233 icmd
->un
.elsreq64
.bdl
.addrHigh
= putPaddrHigh(pbuflist
->phys
);
234 icmd
->un
.elsreq64
.bdl
.addrLow
= putPaddrLow(pbuflist
->phys
);
235 icmd
->un
.elsreq64
.bdl
.bdeFlags
= BUFF_TYPE_BLP_64
;
236 icmd
->un
.elsreq64
.remoteID
= did
; /* DID */
238 icmd
->un
.elsreq64
.bdl
.bdeSize
= (2 * sizeof(struct ulp_bde64
));
239 icmd
->ulpCommand
= CMD_ELS_REQUEST64_CR
;
240 icmd
->ulpTimeout
= phba
->fc_ratov
* 2;
242 icmd
->un
.elsreq64
.bdl
.bdeSize
= sizeof(struct ulp_bde64
);
243 icmd
->ulpCommand
= CMD_XMIT_ELS_RSP64_CX
;
245 icmd
->ulpBdeCount
= 1;
247 icmd
->ulpClass
= CLASS3
;
249 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
250 icmd
->un
.elsreq64
.myID
= vport
->fc_myDID
;
252 /* For ELS_REQUEST64_CR, use the VPI by default */
253 icmd
->ulpContext
= vport
->vpi
+ phba
->vpi_base
;
255 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
256 if (elscmd
== ELS_CMD_ECHO
)
257 icmd
->ulpCt_l
= 0; /* context = invalid RPI */
259 icmd
->ulpCt_l
= 1; /* context = VPI */
262 bpl
= (struct ulp_bde64
*) pbuflist
->virt
;
263 bpl
->addrLow
= le32_to_cpu(putPaddrLow(pcmd
->phys
));
264 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(pcmd
->phys
));
265 bpl
->tus
.f
.bdeSize
= cmdSize
;
266 bpl
->tus
.f
.bdeFlags
= 0;
267 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
271 bpl
->addrLow
= le32_to_cpu(putPaddrLow(prsp
->phys
));
272 bpl
->addrHigh
= le32_to_cpu(putPaddrHigh(prsp
->phys
));
273 bpl
->tus
.f
.bdeSize
= FCELSSIZE
;
274 bpl
->tus
.f
.bdeFlags
= BUFF_TYPE_BDE_64
;
275 bpl
->tus
.w
= le32_to_cpu(bpl
->tus
.w
);
278 /* prevent preparing iocb with NULL ndlp reference */
279 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
280 if (!elsiocb
->context1
)
281 goto els_iocb_free_pbuf_exit
;
282 elsiocb
->context2
= pcmd
;
283 elsiocb
->context3
= pbuflist
;
284 elsiocb
->retry
= retry
;
285 elsiocb
->vport
= vport
;
286 elsiocb
->drvrTimeout
= (phba
->fc_ratov
<< 1) + LPFC_DRVR_TIMEOUT
;
289 list_add(&prsp
->list
, &pcmd
->list
);
292 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
293 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
294 "0116 Xmit ELS command x%x to remote "
295 "NPORT x%x I/O tag: x%x, port state: x%x\n",
296 elscmd
, did
, elsiocb
->iotag
,
299 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
300 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
301 "0117 Xmit ELS response x%x to remote "
302 "NPORT x%x I/O tag: x%x, size: x%x\n",
303 elscmd
, ndlp
->nlp_DID
, elsiocb
->iotag
,
308 els_iocb_free_pbuf_exit
:
310 lpfc_mbuf_free(phba
, prsp
->virt
, prsp
->phys
);
313 els_iocb_free_prsp_exit
:
314 lpfc_mbuf_free(phba
, pcmd
->virt
, pcmd
->phys
);
317 els_iocb_free_pcmb_exit
:
319 lpfc_sli_release_iocbq(phba
, elsiocb
);
324 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
325 * @vport: pointer to a host virtual N_Port data structure.
327 * This routine issues a fabric registration login for a @vport. An
328 * active ndlp node with Fabric_DID must already exist for this @vport.
329 * The routine invokes two mailbox commands to carry out fabric registration
330 * login through the HBA firmware: the first mailbox command requests the
331 * HBA to perform link configuration for the @vport; and the second mailbox
332 * command requests the HBA to perform the actual fabric registration login
336 * 0 - successfully issued fabric registration login for @vport
337 * -ENXIO -- failed to issue fabric registration login for @vport
340 lpfc_issue_fabric_reglogin(struct lpfc_vport
*vport
)
342 struct lpfc_hba
*phba
= vport
->phba
;
344 struct lpfc_dmabuf
*mp
;
345 struct lpfc_nodelist
*ndlp
;
346 struct serv_parm
*sp
;
350 sp
= &phba
->fc_fabparam
;
351 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
352 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
357 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
363 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
364 lpfc_config_link(phba
, mbox
);
365 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
368 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
369 if (rc
== MBX_NOT_FINISHED
) {
374 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
379 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, Fabric_DID
, (uint8_t *)sp
, mbox
,
386 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_fabric_reg_login
;
388 /* increment the reference count on ndlp to hold reference
389 * for the callback routine.
391 mbox
->context2
= lpfc_nlp_get(ndlp
);
393 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
394 if (rc
== MBX_NOT_FINISHED
) {
396 goto fail_issue_reg_login
;
401 fail_issue_reg_login
:
402 /* decrement the reference count on ndlp just incremented
403 * for the failed mbox command.
406 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
407 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
410 mempool_free(mbox
, phba
->mbox_mem_pool
);
413 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
414 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
415 "0249 Cannot issue Register Fabric login: Err %d\n", err
);
420 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
421 * @vport: pointer to a host virtual N_Port data structure.
423 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
424 * the @vport. This mailbox command is necessary for FCoE only.
427 * 0 - successfully issued REG_VFI for @vport
428 * A failure code otherwise.
431 lpfc_issue_reg_vfi(struct lpfc_vport
*vport
)
433 struct lpfc_hba
*phba
= vport
->phba
;
435 struct lpfc_nodelist
*ndlp
;
436 struct serv_parm
*sp
;
437 struct lpfc_dmabuf
*dmabuf
;
440 sp
= &phba
->fc_fabparam
;
441 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
442 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
447 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
452 dmabuf
->virt
= lpfc_mbuf_alloc(phba
, MEM_PRI
, &dmabuf
->phys
);
455 goto fail_free_dmabuf
;
457 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
460 goto fail_free_coherent
;
462 vport
->port_state
= LPFC_FABRIC_CFG_LINK
;
463 memcpy(dmabuf
->virt
, &phba
->fc_fabparam
, sizeof(vport
->fc_sparam
));
464 lpfc_reg_vfi(mboxq
, vport
, dmabuf
->phys
);
465 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vfi
;
466 mboxq
->vport
= vport
;
467 mboxq
->context1
= dmabuf
;
468 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
469 if (rc
== MBX_NOT_FINISHED
) {
476 mempool_free(mboxq
, phba
->mbox_mem_pool
);
478 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
482 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
483 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
484 "0289 Issue Register VFI failed: Err %d\n", rc
);
489 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
490 * @vport: pointer to a host virtual N_Port data structure.
491 * @sp: pointer to service parameter data structure.
493 * This routine is called from FLOGI/FDISC completion handler functions.
494 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
495 * node nodename is changed in the completion service parameter else return
496 * 0. This function also set flag in the vport data structure to delay
497 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
498 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
499 * node nodename is changed in the completion service parameter.
502 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
503 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
507 lpfc_check_clean_addr_bit(struct lpfc_vport
*vport
,
508 struct serv_parm
*sp
)
510 uint8_t fabric_param_changed
= 0;
511 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
513 if ((vport
->fc_prevDID
!= vport
->fc_myDID
) ||
514 memcmp(&vport
->fabric_portname
, &sp
->portName
,
515 sizeof(struct lpfc_name
)) ||
516 memcmp(&vport
->fabric_nodename
, &sp
->nodeName
,
517 sizeof(struct lpfc_name
)))
518 fabric_param_changed
= 1;
521 * Word 1 Bit 31 in common service parameter is overloaded.
522 * Word 1 Bit 31 in FLOGI request is multiple NPort request
523 * Word 1 Bit 31 in FLOGI response is clean address bit
525 * If fabric parameter is changed and clean address bit is
526 * cleared delay nport discovery if
527 * - vport->fc_prevDID != 0 (not initial discovery) OR
528 * - lpfc_delay_discovery module parameter is set.
530 if (fabric_param_changed
&& !sp
->cmn
.clean_address_bit
&&
531 (vport
->fc_prevDID
|| lpfc_delay_discovery
)) {
532 spin_lock_irq(shost
->host_lock
);
533 vport
->fc_flag
|= FC_DISC_DELAYED
;
534 spin_unlock_irq(shost
->host_lock
);
537 return fabric_param_changed
;
542 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
543 * @vport: pointer to a host virtual N_Port data structure.
544 * @ndlp: pointer to a node-list data structure.
545 * @sp: pointer to service parameter data structure.
546 * @irsp: pointer to the IOCB within the lpfc response IOCB.
548 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
549 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
550 * port in a fabric topology. It properly sets up the parameters to the @ndlp
551 * from the IOCB response. It also check the newly assigned N_Port ID to the
552 * @vport against the previously assigned N_Port ID. If it is different from
553 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
554 * is invoked on all the remaining nodes with the @vport to unregister the
555 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
556 * is invoked to register login to the fabric.
559 * 0 - Success (currently, always return 0)
562 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
563 struct serv_parm
*sp
, IOCB_t
*irsp
)
565 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
566 struct lpfc_hba
*phba
= vport
->phba
;
567 struct lpfc_nodelist
*np
;
568 struct lpfc_nodelist
*next_np
;
569 uint8_t fabric_param_changed
;
571 spin_lock_irq(shost
->host_lock
);
572 vport
->fc_flag
|= FC_FABRIC
;
573 spin_unlock_irq(shost
->host_lock
);
575 phba
->fc_edtov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
576 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
577 phba
->fc_edtov
= (phba
->fc_edtov
+ 999999) / 1000000;
579 phba
->fc_edtovResol
= sp
->cmn
.edtovResolution
;
580 phba
->fc_ratov
= (be32_to_cpu(sp
->cmn
.w2
.r_a_tov
) + 999) / 1000;
582 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
583 spin_lock_irq(shost
->host_lock
);
584 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
585 spin_unlock_irq(shost
->host_lock
);
588 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
589 memcpy(&ndlp
->nlp_portname
, &sp
->portName
, sizeof(struct lpfc_name
));
590 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
, sizeof(struct lpfc_name
));
591 ndlp
->nlp_class_sup
= 0;
592 if (sp
->cls1
.classValid
)
593 ndlp
->nlp_class_sup
|= FC_COS_CLASS1
;
594 if (sp
->cls2
.classValid
)
595 ndlp
->nlp_class_sup
|= FC_COS_CLASS2
;
596 if (sp
->cls3
.classValid
)
597 ndlp
->nlp_class_sup
|= FC_COS_CLASS3
;
598 if (sp
->cls4
.classValid
)
599 ndlp
->nlp_class_sup
|= FC_COS_CLASS4
;
600 ndlp
->nlp_maxframe
= ((sp
->cmn
.bbRcvSizeMsb
& 0x0F) << 8) |
601 sp
->cmn
.bbRcvSizeLsb
;
603 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
604 memcpy(&vport
->fabric_portname
, &sp
->portName
,
605 sizeof(struct lpfc_name
));
606 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
607 sizeof(struct lpfc_name
));
608 memcpy(&phba
->fc_fabparam
, sp
, sizeof(struct serv_parm
));
610 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
611 if (sp
->cmn
.response_multiple_NPort
) {
612 lpfc_printf_vlog(vport
, KERN_WARNING
,
614 "1816 FLOGI NPIV supported, "
615 "response data 0x%x\n",
616 sp
->cmn
.response_multiple_NPort
);
617 phba
->link_flag
|= LS_NPIV_FAB_SUPPORTED
;
619 /* Because we asked f/w for NPIV it still expects us
620 to call reg_vnpid atleast for the physcial host */
621 lpfc_printf_vlog(vport
, KERN_WARNING
,
623 "1817 Fabric does not support NPIV "
624 "- configuring single port mode.\n");
625 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
629 if (fabric_param_changed
&&
630 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
632 /* If our NportID changed, we need to ensure all
633 * remaining NPORTs get unreg_login'ed.
635 list_for_each_entry_safe(np
, next_np
,
636 &vport
->fc_nodes
, nlp_listp
) {
637 if (!NLP_CHK_NODE_ACT(np
))
639 if ((np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
640 !(np
->nlp_flag
& NLP_NPR_ADISC
))
642 spin_lock_irq(shost
->host_lock
);
643 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
644 spin_unlock_irq(shost
->host_lock
);
645 lpfc_unreg_rpi(vport
, np
);
647 lpfc_cleanup_pending_mbox(vport
);
649 if (phba
->sli_rev
== LPFC_SLI_REV4
)
650 lpfc_sli4_unreg_all_rpis(vport
);
652 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
653 lpfc_mbx_unreg_vpi(vport
);
654 spin_lock_irq(shost
->host_lock
);
655 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
656 spin_unlock_irq(shost
->host_lock
);
659 * If VPI is unreged, driver need to do INIT_VPI
660 * before re-registering
662 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
663 spin_lock_irq(shost
->host_lock
);
664 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
665 spin_unlock_irq(shost
->host_lock
);
667 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
668 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
670 * Driver needs to re-reg VPI in order for f/w
671 * to update the MAC address.
673 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
674 lpfc_register_new_vport(phba
, vport
, ndlp
);
678 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
679 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_REG_LOGIN_ISSUE
);
680 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
&&
681 vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
682 lpfc_register_new_vport(phba
, vport
, ndlp
);
684 lpfc_issue_fabric_reglogin(vport
);
686 ndlp
->nlp_type
|= NLP_FABRIC
;
687 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
688 if ((!(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) &&
689 (vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
690 lpfc_start_fdiscs(phba
);
691 lpfc_do_scr_ns_plogi(phba
, vport
);
692 } else if (vport
->fc_flag
& FC_VFI_REGISTERED
)
693 lpfc_issue_init_vpi(vport
);
695 lpfc_issue_reg_vfi(vport
);
700 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
701 * @vport: pointer to a host virtual N_Port data structure.
702 * @ndlp: pointer to a node-list data structure.
703 * @sp: pointer to service parameter data structure.
705 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
706 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
707 * in a point-to-point topology. First, the @vport's N_Port Name is compared
708 * with the received N_Port Name: if the @vport's N_Port Name is greater than
709 * the received N_Port Name lexicographically, this node shall assign local
710 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
711 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
712 * this node shall just wait for the remote node to issue PLOGI and assign
720 lpfc_cmpl_els_flogi_nport(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
721 struct serv_parm
*sp
)
723 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
724 struct lpfc_hba
*phba
= vport
->phba
;
728 spin_lock_irq(shost
->host_lock
);
729 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
730 spin_unlock_irq(shost
->host_lock
);
732 phba
->fc_edtov
= FF_DEF_EDTOV
;
733 phba
->fc_ratov
= FF_DEF_RATOV
;
734 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
735 sizeof(vport
->fc_portname
));
737 /* This side will initiate the PLOGI */
738 spin_lock_irq(shost
->host_lock
);
739 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
740 spin_unlock_irq(shost
->host_lock
);
743 * N_Port ID cannot be 0, set our to LocalID the other
744 * side will be RemoteID.
749 vport
->fc_myDID
= PT2PT_LocalID
;
751 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
755 lpfc_config_link(phba
, mbox
);
757 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
759 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
760 if (rc
== MBX_NOT_FINISHED
) {
761 mempool_free(mbox
, phba
->mbox_mem_pool
);
764 /* Decrement ndlp reference count indicating that ndlp can be
765 * safely released when other references to it are done.
769 ndlp
= lpfc_findnode_did(vport
, PT2PT_RemoteID
);
772 * Cannot find existing Fabric ndlp, so allocate a
775 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
778 lpfc_nlp_init(vport
, ndlp
, PT2PT_RemoteID
);
779 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
780 ndlp
= lpfc_enable_node(vport
, ndlp
,
781 NLP_STE_UNUSED_NODE
);
786 memcpy(&ndlp
->nlp_portname
, &sp
->portName
,
787 sizeof(struct lpfc_name
));
788 memcpy(&ndlp
->nlp_nodename
, &sp
->nodeName
,
789 sizeof(struct lpfc_name
));
790 /* Set state will put ndlp onto node list if not already done */
791 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
792 spin_lock_irq(shost
->host_lock
);
793 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
794 spin_unlock_irq(shost
->host_lock
);
796 /* This side will wait for the PLOGI, decrement ndlp reference
797 * count indicating that ndlp can be released when other
798 * references to it are done.
802 /* If we are pt2pt with another NPort, force NPIV off! */
803 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
805 spin_lock_irq(shost
->host_lock
);
806 vport
->fc_flag
|= FC_PT2PT
;
807 spin_unlock_irq(shost
->host_lock
);
809 /* Start discovery - this should just do CLEAR_LA */
810 lpfc_disc_start(vport
);
817 * lpfc_cmpl_els_flogi - Completion callback function for flogi
818 * @phba: pointer to lpfc hba data structure.
819 * @cmdiocb: pointer to lpfc command iocb data structure.
820 * @rspiocb: pointer to lpfc response iocb data structure.
822 * This routine is the top-level completion callback function for issuing
823 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
824 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
825 * retry has been made (either immediately or delayed with lpfc_els_retry()
826 * returning 1), the command IOCB will be released and function returned.
827 * If the retry attempt has been given up (possibly reach the maximum
828 * number of retries), one additional decrement of ndlp reference shall be
829 * invoked before going out after releasing the command IOCB. This will
830 * actually release the remote node (Note, lpfc_els_free_iocb() will also
831 * invoke one decrement of ndlp reference count). If no error reported in
832 * the IOCB status, the command Port ID field is used to determine whether
833 * this is a point-to-point topology or a fabric topology: if the Port ID
834 * field is assigned, it is a fabric topology; otherwise, it is a
835 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
836 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
837 * specific topology completion conditions.
840 lpfc_cmpl_els_flogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
841 struct lpfc_iocbq
*rspiocb
)
843 struct lpfc_vport
*vport
= cmdiocb
->vport
;
844 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
845 IOCB_t
*irsp
= &rspiocb
->iocb
;
846 struct lpfc_nodelist
*ndlp
= cmdiocb
->context1
;
847 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
848 struct serv_parm
*sp
;
852 /* Check to see if link went down during discovery */
853 if (lpfc_els_chk_latt(vport
)) {
854 /* One additional decrement on node reference count to
855 * trigger the release of the node
861 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
862 "FLOGI cmpl: status:x%x/x%x state:x%x",
863 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
866 if (irsp
->ulpStatus
) {
868 * In case of FIP mode, perform roundrobin FCF failover
869 * due to new FCF discovery
871 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) &&
872 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) &&
873 !((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
874 (irsp
->un
.ulpWord
[4] == IOERR_SLI_ABORTED
))) {
875 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
876 "2611 FLOGI failed on FCF (x%x), "
877 "status:x%x/x%x, tmo:x%x, perform "
878 "roundrobin FCF failover\n",
879 phba
->fcf
.current_rec
.fcf_indx
,
880 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
882 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
883 rc
= lpfc_sli4_fcf_rr_next_proc(vport
, fcf_index
);
889 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
890 "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n",
891 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
894 /* Check for retry */
895 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
899 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
900 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
901 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
904 /* FLOGI failed, so there is no fabric */
905 spin_lock_irq(shost
->host_lock
);
906 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
907 spin_unlock_irq(shost
->host_lock
);
909 /* If private loop, then allow max outstanding els to be
910 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
911 * alpa map would take too long otherwise.
913 if (phba
->alpa_map
[0] == 0) {
914 vport
->cfg_discovery_threads
= LPFC_MAX_DISC_THREADS
;
915 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
916 (!(vport
->fc_flag
& FC_VFI_REGISTERED
) ||
917 (vport
->fc_prevDID
!= vport
->fc_myDID
))) {
918 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
919 lpfc_sli4_unreg_all_rpis(vport
);
920 lpfc_issue_reg_vfi(vport
);
927 spin_lock_irq(shost
->host_lock
);
928 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
929 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
930 spin_unlock_irq(shost
->host_lock
);
933 * The FLogI succeeded. Sync the data for the CPU before
936 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
938 sp
= prsp
->virt
+ sizeof(uint32_t);
940 /* FLOGI completes successfully */
941 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
942 "0101 FLOGI completes successfully "
943 "Data: x%x x%x x%x x%x\n",
944 irsp
->un
.ulpWord
[4], sp
->cmn
.e_d_tov
,
945 sp
->cmn
.w2
.r_a_tov
, sp
->cmn
.edtovResolution
);
947 if (vport
->port_state
== LPFC_FLOGI
) {
949 * If Common Service Parameters indicate Nport
950 * we are point to point, if Fport we are Fabric.
953 rc
= lpfc_cmpl_els_flogi_fabric(vport
, ndlp
, sp
, irsp
);
954 else if (!(phba
->hba_flag
& HBA_FCOE_MODE
))
955 rc
= lpfc_cmpl_els_flogi_nport(vport
, ndlp
, sp
);
957 lpfc_printf_vlog(vport
, KERN_ERR
,
959 "2831 FLOGI response with cleared Fabric "
960 "bit fcf_index 0x%x "
961 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
963 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
964 phba
->fcf
.current_rec
.fcf_indx
,
965 phba
->fcf
.current_rec
.switch_name
[0],
966 phba
->fcf
.current_rec
.switch_name
[1],
967 phba
->fcf
.current_rec
.switch_name
[2],
968 phba
->fcf
.current_rec
.switch_name
[3],
969 phba
->fcf
.current_rec
.switch_name
[4],
970 phba
->fcf
.current_rec
.switch_name
[5],
971 phba
->fcf
.current_rec
.switch_name
[6],
972 phba
->fcf
.current_rec
.switch_name
[7],
973 phba
->fcf
.current_rec
.fabric_name
[0],
974 phba
->fcf
.current_rec
.fabric_name
[1],
975 phba
->fcf
.current_rec
.fabric_name
[2],
976 phba
->fcf
.current_rec
.fabric_name
[3],
977 phba
->fcf
.current_rec
.fabric_name
[4],
978 phba
->fcf
.current_rec
.fabric_name
[5],
979 phba
->fcf
.current_rec
.fabric_name
[6],
980 phba
->fcf
.current_rec
.fabric_name
[7]);
982 spin_lock_irq(&phba
->hbalock
);
983 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
984 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
985 spin_unlock_irq(&phba
->hbalock
);
989 /* Mark the FCF discovery process done */
990 if (phba
->hba_flag
& HBA_FIP_SUPPORT
)
991 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_FIP
|
993 "2769 FLOGI to FCF (x%x) "
994 "completed successfully\n",
995 phba
->fcf
.current_rec
.fcf_indx
);
996 spin_lock_irq(&phba
->hbalock
);
997 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
998 phba
->hba_flag
&= ~(FCF_RR_INPROG
| HBA_DEVLOSS_TMO
);
999 spin_unlock_irq(&phba
->hbalock
);
1007 if (!lpfc_error_lost_link(irsp
)) {
1008 /* FLOGI failed, so just use loop map to make discovery list */
1009 lpfc_disc_list_loopmap(vport
);
1011 /* Start discovery */
1012 lpfc_disc_start(vport
);
1013 } else if (((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
1014 ((irsp
->un
.ulpWord
[4] != IOERR_SLI_ABORTED
) &&
1015 (irsp
->un
.ulpWord
[4] != IOERR_SLI_DOWN
))) &&
1016 (phba
->link_state
!= LPFC_CLEAR_LA
)) {
1017 /* If FLOGI failed enable link interrupt. */
1018 lpfc_issue_clear_la(phba
, vport
);
1021 lpfc_els_free_iocb(phba
, cmdiocb
);
1025 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1026 * @vport: pointer to a host virtual N_Port data structure.
1027 * @ndlp: pointer to a node-list data structure.
1028 * @retry: number of retries to the command IOCB.
1030 * This routine issues a Fabric Login (FLOGI) Request ELS command
1031 * for a @vport. The initiator service parameters are put into the payload
1032 * of the FLOGI Request IOCB and the top-level callback function pointer
1033 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1034 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1035 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1037 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1038 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1039 * will be stored into the context1 field of the IOCB for the completion
1040 * callback function to the FLOGI ELS command.
1043 * 0 - successfully issued flogi iocb for @vport
1044 * 1 - failed to issue flogi iocb for @vport
1047 lpfc_issue_els_flogi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1050 struct lpfc_hba
*phba
= vport
->phba
;
1051 struct serv_parm
*sp
;
1053 struct lpfc_iocbq
*elsiocb
;
1054 struct lpfc_sli_ring
*pring
;
1060 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1062 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1063 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1064 ndlp
->nlp_DID
, ELS_CMD_FLOGI
);
1069 icmd
= &elsiocb
->iocb
;
1070 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1072 /* For FLOGI request, remainder of payload is service parameters */
1073 *((uint32_t *) (pcmd
)) = ELS_CMD_FLOGI
;
1074 pcmd
+= sizeof(uint32_t);
1075 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1076 sp
= (struct serv_parm
*) pcmd
;
1078 /* Setup CSPs accordingly for Fabric */
1079 sp
->cmn
.e_d_tov
= 0;
1080 sp
->cmn
.w2
.r_a_tov
= 0;
1081 sp
->cls1
.classValid
= 0;
1082 sp
->cls2
.seqDelivery
= 1;
1083 sp
->cls3
.seqDelivery
= 1;
1084 if (sp
->cmn
.fcphLow
< FC_PH3
)
1085 sp
->cmn
.fcphLow
= FC_PH3
;
1086 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1087 sp
->cmn
.fcphHigh
= FC_PH3
;
1089 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
1090 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
1091 LPFC_SLI_INTF_IF_TYPE_0
) {
1092 elsiocb
->iocb
.ulpCt_h
= ((SLI4_CT_FCFI
>> 1) & 1);
1093 elsiocb
->iocb
.ulpCt_l
= (SLI4_CT_FCFI
& 1);
1094 /* FLOGI needs to be 3 for WQE FCFI */
1095 /* Set the fcfi to the fcfi we registered with */
1096 elsiocb
->iocb
.ulpContext
= phba
->fcf
.fcfi
;
1098 } else if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1099 sp
->cmn
.request_multiple_Nport
= 1;
1100 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1105 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) {
1106 icmd
->un
.elsreq64
.myID
= 0;
1107 icmd
->un
.elsreq64
.fl
= 1;
1110 tmo
= phba
->fc_ratov
;
1111 phba
->fc_ratov
= LPFC_DISC_FLOGI_TMO
;
1112 lpfc_set_disctmo(vport
);
1113 phba
->fc_ratov
= tmo
;
1115 phba
->fc_stat
.elsXmitFLOGI
++;
1116 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_flogi
;
1118 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1119 "Issue FLOGI: opt:x%x",
1120 phba
->sli3_options
, 0, 0);
1122 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
1123 if (rc
== IOCB_ERROR
) {
1124 lpfc_els_free_iocb(phba
, elsiocb
);
1131 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1132 * @phba: pointer to lpfc hba data structure.
1134 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1135 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1136 * list and issues an abort IOCB commond on each outstanding IOCB that
1137 * contains a active Fabric_DID ndlp. Note that this function is to issue
1138 * the abort IOCB command on all the outstanding IOCBs, thus when this
1139 * function returns, it does not guarantee all the IOCBs are actually aborted.
1142 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1145 lpfc_els_abort_flogi(struct lpfc_hba
*phba
)
1147 struct lpfc_sli_ring
*pring
;
1148 struct lpfc_iocbq
*iocb
, *next_iocb
;
1149 struct lpfc_nodelist
*ndlp
;
1152 /* Abort outstanding I/O on NPort <nlp_DID> */
1153 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1154 "0201 Abort outstanding I/O on NPort x%x\n",
1157 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1160 * Check the txcmplq for an iocb that matches the nport the driver is
1163 spin_lock_irq(&phba
->hbalock
);
1164 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
1166 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
&&
1167 icmd
->un
.elsreq64
.bdl
.ulpIoTag32
) {
1168 ndlp
= (struct lpfc_nodelist
*)(iocb
->context1
);
1169 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
1170 (ndlp
->nlp_DID
== Fabric_DID
))
1171 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
1174 spin_unlock_irq(&phba
->hbalock
);
1180 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1181 * @vport: pointer to a host virtual N_Port data structure.
1183 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1184 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1185 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1186 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1187 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1188 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1192 * 0 - failed to issue initial flogi for @vport
1193 * 1 - successfully issued initial flogi for @vport
1196 lpfc_initial_flogi(struct lpfc_vport
*vport
)
1198 struct lpfc_hba
*phba
= vport
->phba
;
1199 struct lpfc_nodelist
*ndlp
;
1201 vport
->port_state
= LPFC_FLOGI
;
1202 lpfc_set_disctmo(vport
);
1204 /* First look for the Fabric ndlp */
1205 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1207 /* Cannot find existing Fabric ndlp, so allocate a new one */
1208 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1211 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1212 /* Set the node type */
1213 ndlp
->nlp_type
|= NLP_FABRIC
;
1214 /* Put ndlp onto node list */
1215 lpfc_enqueue_node(vport
, ndlp
);
1216 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1217 /* re-setup ndlp without removing from node list */
1218 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1223 if (lpfc_issue_els_flogi(vport
, ndlp
, 0)) {
1224 /* This decrement of reference count to node shall kick off
1225 * the release of the node.
1234 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1235 * @vport: pointer to a host virtual N_Port data structure.
1237 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1238 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1239 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1240 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1241 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1242 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1246 * 0 - failed to issue initial fdisc for @vport
1247 * 1 - successfully issued initial fdisc for @vport
1250 lpfc_initial_fdisc(struct lpfc_vport
*vport
)
1252 struct lpfc_hba
*phba
= vport
->phba
;
1253 struct lpfc_nodelist
*ndlp
;
1255 /* First look for the Fabric ndlp */
1256 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
1258 /* Cannot find existing Fabric ndlp, so allocate a new one */
1259 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1262 lpfc_nlp_init(vport
, ndlp
, Fabric_DID
);
1263 /* Put ndlp onto node list */
1264 lpfc_enqueue_node(vport
, ndlp
);
1265 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
1266 /* re-setup ndlp without removing from node list */
1267 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1272 if (lpfc_issue_els_fdisc(vport
, ndlp
, 0)) {
1273 /* decrement node reference count to trigger the release of
1283 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1284 * @vport: pointer to a host virtual N_Port data structure.
1286 * This routine checks whether there are more remaining Port Logins
1287 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1288 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1289 * to issue ELS PLOGIs up to the configured discover threads with the
1290 * @vport (@vport->cfg_discovery_threads). The function also decrement
1291 * the @vport's num_disc_node by 1 if it is not already 0.
1294 lpfc_more_plogi(struct lpfc_vport
*vport
)
1298 if (vport
->num_disc_nodes
)
1299 vport
->num_disc_nodes
--;
1301 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1302 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1303 "0232 Continue discovery with %d PLOGIs to go "
1304 "Data: x%x x%x x%x\n",
1305 vport
->num_disc_nodes
, vport
->fc_plogi_cnt
,
1306 vport
->fc_flag
, vport
->port_state
);
1307 /* Check to see if there are more PLOGIs to be sent */
1308 if (vport
->fc_flag
& FC_NLP_MORE
)
1309 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1310 sentplogi
= lpfc_els_disc_plogi(vport
);
1316 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1317 * @phba: pointer to lpfc hba data structure.
1318 * @prsp: pointer to response IOCB payload.
1319 * @ndlp: pointer to a node-list data structure.
1321 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1322 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1323 * The following cases are considered N_Port confirmed:
1324 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1325 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1326 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1327 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1328 * 1) if there is a node on vport list other than the @ndlp with the same
1329 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1330 * on that node to release the RPI associated with the node; 2) if there is
1331 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1332 * into, a new node shall be allocated (or activated). In either case, the
1333 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1334 * be released and the new_ndlp shall be put on to the vport node list and
1335 * its pointer returned as the confirmed node.
1337 * Note that before the @ndlp got "released", the keepDID from not-matching
1338 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1339 * of the @ndlp. This is because the release of @ndlp is actually to put it
1340 * into an inactive state on the vport node list and the vport node list
1341 * management algorithm does not allow two node with a same DID.
1344 * pointer to the PLOGI N_Port @ndlp
1346 static struct lpfc_nodelist
*
1347 lpfc_plogi_confirm_nport(struct lpfc_hba
*phba
, uint32_t *prsp
,
1348 struct lpfc_nodelist
*ndlp
)
1350 struct lpfc_vport
*vport
= ndlp
->vport
;
1351 struct lpfc_nodelist
*new_ndlp
;
1352 struct lpfc_rport_data
*rdata
;
1353 struct fc_rport
*rport
;
1354 struct serv_parm
*sp
;
1355 uint8_t name
[sizeof(struct lpfc_name
)];
1356 uint32_t rc
, keepDID
= 0;
1359 struct lpfc_node_rrqs rrq
;
1361 /* Fabric nodes can have the same WWPN so we don't bother searching
1362 * by WWPN. Just return the ndlp that was given to us.
1364 if (ndlp
->nlp_type
& NLP_FABRIC
)
1367 sp
= (struct serv_parm
*) ((uint8_t *) prsp
+ sizeof(uint32_t));
1368 memset(name
, 0, sizeof(struct lpfc_name
));
1370 /* Now we find out if the NPort we are logging into, matches the WWPN
1371 * we have for that ndlp. If not, we have some work to do.
1373 new_ndlp
= lpfc_findnode_wwpn(vport
, &sp
->portName
);
1375 if (new_ndlp
== ndlp
&& NLP_CHK_NODE_ACT(new_ndlp
))
1377 memset(&rrq
.xri_bitmap
, 0, sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1380 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1381 sizeof(struct lpfc_name
));
1384 new_ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_ATOMIC
);
1387 lpfc_nlp_init(vport
, new_ndlp
, ndlp
->nlp_DID
);
1388 } else if (!NLP_CHK_NODE_ACT(new_ndlp
)) {
1389 rc
= memcmp(&ndlp
->nlp_portname
, name
,
1390 sizeof(struct lpfc_name
));
1393 new_ndlp
= lpfc_enable_node(vport
, new_ndlp
,
1394 NLP_STE_UNUSED_NODE
);
1397 keepDID
= new_ndlp
->nlp_DID
;
1398 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1399 memcpy(&rrq
.xri_bitmap
,
1400 &new_ndlp
->active_rrqs
.xri_bitmap
,
1401 sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1403 keepDID
= new_ndlp
->nlp_DID
;
1404 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1405 memcpy(&rrq
.xri_bitmap
,
1406 &new_ndlp
->active_rrqs
.xri_bitmap
,
1407 sizeof(new_ndlp
->active_rrqs
.xri_bitmap
));
1410 lpfc_unreg_rpi(vport
, new_ndlp
);
1411 new_ndlp
->nlp_DID
= ndlp
->nlp_DID
;
1412 new_ndlp
->nlp_prev_state
= ndlp
->nlp_prev_state
;
1413 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1414 memcpy(new_ndlp
->active_rrqs
.xri_bitmap
,
1415 &ndlp
->active_rrqs
.xri_bitmap
,
1416 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1418 if (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
)
1419 new_ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1420 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1422 /* Set state will put new_ndlp on to node list if not already done */
1423 lpfc_nlp_set_state(vport
, new_ndlp
, ndlp
->nlp_state
);
1425 /* Move this back to NPR state */
1426 if (memcmp(&ndlp
->nlp_portname
, name
, sizeof(struct lpfc_name
)) == 0) {
1427 /* The new_ndlp is replacing ndlp totally, so we need
1428 * to put ndlp on UNUSED list and try to free it.
1431 /* Fix up the rport accordingly */
1432 rport
= ndlp
->rport
;
1434 rdata
= rport
->dd_data
;
1435 if (rdata
->pnode
== ndlp
) {
1438 rdata
->pnode
= lpfc_nlp_get(new_ndlp
);
1439 new_ndlp
->rport
= rport
;
1441 new_ndlp
->nlp_type
= ndlp
->nlp_type
;
1443 /* We shall actually free the ndlp with both nlp_DID and
1444 * nlp_portname fields equals 0 to avoid any ndlp on the
1445 * nodelist never to be used.
1447 if (ndlp
->nlp_DID
== 0) {
1448 spin_lock_irq(&phba
->ndlp_lock
);
1449 NLP_SET_FREE_REQ(ndlp
);
1450 spin_unlock_irq(&phba
->ndlp_lock
);
1453 /* Two ndlps cannot have the same did on the nodelist */
1454 ndlp
->nlp_DID
= keepDID
;
1455 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1456 memcpy(&ndlp
->active_rrqs
.xri_bitmap
,
1458 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1459 lpfc_drop_node(vport
, ndlp
);
1462 lpfc_unreg_rpi(vport
, ndlp
);
1463 /* Two ndlps cannot have the same did */
1464 ndlp
->nlp_DID
= keepDID
;
1465 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1466 memcpy(&ndlp
->active_rrqs
.xri_bitmap
,
1468 sizeof(ndlp
->active_rrqs
.xri_bitmap
));
1469 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
1470 /* Since we are swapping the ndlp passed in with the new one
1471 * and the did has already been swapped, copy over the
1474 memcpy(&new_ndlp
->nlp_portname
, &ndlp
->nlp_portname
,
1475 sizeof(struct lpfc_name
));
1476 memcpy(&new_ndlp
->nlp_nodename
, &ndlp
->nlp_nodename
,
1477 sizeof(struct lpfc_name
));
1478 new_ndlp
->nlp_state
= ndlp
->nlp_state
;
1479 /* Fix up the rport accordingly */
1480 rport
= ndlp
->rport
;
1482 rdata
= rport
->dd_data
;
1483 put_node
= rdata
->pnode
!= NULL
;
1484 put_rport
= ndlp
->rport
!= NULL
;
1485 rdata
->pnode
= NULL
;
1490 put_device(&rport
->dev
);
1497 * lpfc_end_rscn - Check and handle more rscn for a vport
1498 * @vport: pointer to a host virtual N_Port data structure.
1500 * This routine checks whether more Registration State Change
1501 * Notifications (RSCNs) came in while the discovery state machine was in
1502 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1503 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1504 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1505 * handling the RSCNs.
1508 lpfc_end_rscn(struct lpfc_vport
*vport
)
1510 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1512 if (vport
->fc_flag
& FC_RSCN_MODE
) {
1514 * Check to see if more RSCNs came in while we were
1515 * processing this one.
1517 if (vport
->fc_rscn_id_cnt
||
1518 (vport
->fc_flag
& FC_RSCN_DISCOVERY
) != 0)
1519 lpfc_els_handle_rscn(vport
);
1521 spin_lock_irq(shost
->host_lock
);
1522 vport
->fc_flag
&= ~FC_RSCN_MODE
;
1523 spin_unlock_irq(shost
->host_lock
);
1529 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1530 * @phba: pointer to lpfc hba data structure.
1531 * @cmdiocb: pointer to lpfc command iocb data structure.
1532 * @rspiocb: pointer to lpfc response iocb data structure.
1534 * This routine will call the clear rrq function to free the rrq and
1535 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1536 * exist then the clear_rrq is still called because the rrq needs to
1541 lpfc_cmpl_els_rrq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1542 struct lpfc_iocbq
*rspiocb
)
1544 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1546 struct lpfc_nodelist
*ndlp
;
1547 struct lpfc_node_rrq
*rrq
;
1549 /* we pass cmdiocb to state machine which needs rspiocb as well */
1550 rrq
= cmdiocb
->context_un
.rrq
;
1551 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1553 irsp
= &rspiocb
->iocb
;
1554 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1555 "RRQ cmpl: status:x%x/x%x did:x%x",
1556 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1557 irsp
->un
.elsreq64
.remoteID
);
1559 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1560 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || ndlp
!= rrq
->ndlp
) {
1561 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1562 "2882 RRQ completes to NPort x%x "
1563 "with no ndlp. Data: x%x x%x x%x\n",
1564 irsp
->un
.elsreq64
.remoteID
,
1565 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1570 /* rrq completes to NPort <nlp_DID> */
1571 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1572 "2880 RRQ completes to NPort x%x "
1573 "Data: x%x x%x x%x x%x x%x\n",
1574 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1575 irsp
->ulpTimeout
, rrq
->xritag
, rrq
->rxid
);
1577 if (irsp
->ulpStatus
) {
1578 /* Check for retry */
1579 /* RRQ failed Don't print the vport to vport rjts */
1580 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1581 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1582 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1583 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1584 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1585 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1586 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1587 irsp
->un
.ulpWord
[4]);
1591 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
1592 lpfc_els_free_iocb(phba
, cmdiocb
);
1596 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1597 * @phba: pointer to lpfc hba data structure.
1598 * @cmdiocb: pointer to lpfc command iocb data structure.
1599 * @rspiocb: pointer to lpfc response iocb data structure.
1601 * This routine is the completion callback function for issuing the Port
1602 * Login (PLOGI) command. For PLOGI completion, there must be an active
1603 * ndlp on the vport node list that matches the remote node ID from the
1604 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1605 * ignored and command IOCB released. The PLOGI response IOCB status is
1606 * checked for error conditons. If there is error status reported, PLOGI
1607 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1608 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1609 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1610 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1611 * there are additional N_Port nodes with the vport that need to perform
1612 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1616 lpfc_cmpl_els_plogi(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1617 struct lpfc_iocbq
*rspiocb
)
1619 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1620 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1622 struct lpfc_nodelist
*ndlp
;
1623 struct lpfc_dmabuf
*prsp
;
1624 int disc
, rc
, did
, type
;
1626 /* we pass cmdiocb to state machine which needs rspiocb as well */
1627 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1629 irsp
= &rspiocb
->iocb
;
1630 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1631 "PLOGI cmpl: status:x%x/x%x did:x%x",
1632 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1633 irsp
->un
.elsreq64
.remoteID
);
1635 ndlp
= lpfc_findnode_did(vport
, irsp
->un
.elsreq64
.remoteID
);
1636 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
1637 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1638 "0136 PLOGI completes to NPort x%x "
1639 "with no ndlp. Data: x%x x%x x%x\n",
1640 irsp
->un
.elsreq64
.remoteID
,
1641 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1646 /* Since ndlp can be freed in the disc state machine, note if this node
1647 * is being used during discovery.
1649 spin_lock_irq(shost
->host_lock
);
1650 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
1651 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1652 spin_unlock_irq(shost
->host_lock
);
1655 /* PLOGI completes to NPort <nlp_DID> */
1656 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1657 "0102 PLOGI completes to NPort x%x "
1658 "Data: x%x x%x x%x x%x x%x\n",
1659 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1660 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
1661 /* Check to see if link went down during discovery */
1662 if (lpfc_els_chk_latt(vport
)) {
1663 spin_lock_irq(shost
->host_lock
);
1664 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1665 spin_unlock_irq(shost
->host_lock
);
1669 /* ndlp could be freed in DSM, save these values now */
1670 type
= ndlp
->nlp_type
;
1671 did
= ndlp
->nlp_DID
;
1673 if (irsp
->ulpStatus
) {
1674 /* Check for retry */
1675 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1676 /* ELS command is being retried */
1678 spin_lock_irq(shost
->host_lock
);
1679 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1680 spin_unlock_irq(shost
->host_lock
);
1684 /* PLOGI failed Don't print the vport to vport rjts */
1685 if (irsp
->ulpStatus
!= IOSTAT_LS_RJT
||
1686 (((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_INVALID_CMD
) &&
1687 ((irsp
->un
.ulpWord
[4]) >> 16 != LSRJT_UNABLE_TPC
)) ||
1688 (phba
)->pport
->cfg_log_verbose
& LOG_ELS
)
1689 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1690 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1691 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1692 irsp
->un
.ulpWord
[4]);
1693 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1694 if (lpfc_error_lost_link(irsp
))
1695 rc
= NLP_STE_FREED_NODE
;
1697 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1698 NLP_EVT_CMPL_PLOGI
);
1700 /* Good status, call state machine */
1701 prsp
= list_entry(((struct lpfc_dmabuf
*)
1702 cmdiocb
->context2
)->list
.next
,
1703 struct lpfc_dmabuf
, list
);
1704 ndlp
= lpfc_plogi_confirm_nport(phba
, prsp
->virt
, ndlp
);
1705 rc
= lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1706 NLP_EVT_CMPL_PLOGI
);
1709 if (disc
&& vport
->num_disc_nodes
) {
1710 /* Check to see if there are more PLOGIs to be sent */
1711 lpfc_more_plogi(vport
);
1713 if (vport
->num_disc_nodes
== 0) {
1714 spin_lock_irq(shost
->host_lock
);
1715 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1716 spin_unlock_irq(shost
->host_lock
);
1718 lpfc_can_disctmo(vport
);
1719 lpfc_end_rscn(vport
);
1724 lpfc_els_free_iocb(phba
, cmdiocb
);
1729 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1730 * @vport: pointer to a host virtual N_Port data structure.
1731 * @did: destination port identifier.
1732 * @retry: number of retries to the command IOCB.
1734 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1735 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1736 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1737 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1738 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1740 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1741 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1742 * will be stored into the context1 field of the IOCB for the completion
1743 * callback function to the PLOGI ELS command.
1746 * 0 - Successfully issued a plogi for @vport
1747 * 1 - failed to issue a plogi for @vport
1750 lpfc_issue_els_plogi(struct lpfc_vport
*vport
, uint32_t did
, uint8_t retry
)
1752 struct lpfc_hba
*phba
= vport
->phba
;
1753 struct serv_parm
*sp
;
1755 struct lpfc_nodelist
*ndlp
;
1756 struct lpfc_iocbq
*elsiocb
;
1757 struct lpfc_sli
*psli
;
1764 ndlp
= lpfc_findnode_did(vport
, did
);
1765 if (ndlp
&& !NLP_CHK_NODE_ACT(ndlp
))
1768 /* If ndlp is not NULL, we will bump the reference count on it */
1769 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
1770 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
1775 icmd
= &elsiocb
->iocb
;
1776 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1778 /* For PLOGI request, remainder of payload is service parameters */
1779 *((uint32_t *) (pcmd
)) = ELS_CMD_PLOGI
;
1780 pcmd
+= sizeof(uint32_t);
1781 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
1782 sp
= (struct serv_parm
*) pcmd
;
1785 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1786 * to device on remote loops work.
1788 if ((vport
->fc_flag
& FC_FABRIC
) && !(vport
->fc_flag
& FC_PUBLIC_LOOP
))
1789 sp
->cmn
.altBbCredit
= 1;
1791 if (sp
->cmn
.fcphLow
< FC_PH_4_3
)
1792 sp
->cmn
.fcphLow
= FC_PH_4_3
;
1794 if (sp
->cmn
.fcphHigh
< FC_PH3
)
1795 sp
->cmn
.fcphHigh
= FC_PH3
;
1797 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1798 "Issue PLOGI: did:x%x",
1801 phba
->fc_stat
.elsXmitPLOGI
++;
1802 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_plogi
;
1803 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
1805 if (ret
== IOCB_ERROR
) {
1806 lpfc_els_free_iocb(phba
, elsiocb
);
1813 * lpfc_cmpl_els_prli - Completion callback function for prli
1814 * @phba: pointer to lpfc hba data structure.
1815 * @cmdiocb: pointer to lpfc command iocb data structure.
1816 * @rspiocb: pointer to lpfc response iocb data structure.
1818 * This routine is the completion callback function for a Process Login
1819 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
1820 * status. If there is error status reported, PRLI retry shall be attempted
1821 * by invoking the lpfc_els_retry() routine. Otherwise, the state
1822 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
1823 * ndlp to mark the PRLI completion.
1826 lpfc_cmpl_els_prli(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
1827 struct lpfc_iocbq
*rspiocb
)
1829 struct lpfc_vport
*vport
= cmdiocb
->vport
;
1830 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1832 struct lpfc_sli
*psli
;
1833 struct lpfc_nodelist
*ndlp
;
1836 /* we pass cmdiocb to state machine which needs rspiocb as well */
1837 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
1839 irsp
= &(rspiocb
->iocb
);
1840 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
1841 spin_lock_irq(shost
->host_lock
);
1842 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
1843 spin_unlock_irq(shost
->host_lock
);
1845 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1846 "PRLI cmpl: status:x%x/x%x did:x%x",
1847 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1849 /* PRLI completes to NPort <nlp_DID> */
1850 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
1851 "0103 PRLI completes to NPort x%x "
1852 "Data: x%x x%x x%x x%x\n",
1853 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
1854 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
1856 vport
->fc_prli_sent
--;
1857 /* Check to see if link went down during discovery */
1858 if (lpfc_els_chk_latt(vport
))
1861 if (irsp
->ulpStatus
) {
1862 /* Check for retry */
1863 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
1864 /* ELS command is being retried */
1868 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1869 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
1870 ndlp
->nlp_DID
, irsp
->ulpStatus
,
1871 irsp
->un
.ulpWord
[4]);
1872 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1873 if (lpfc_error_lost_link(irsp
))
1876 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1879 /* Good status, call state machine */
1880 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
1883 lpfc_els_free_iocb(phba
, cmdiocb
);
1888 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
1889 * @vport: pointer to a host virtual N_Port data structure.
1890 * @ndlp: pointer to a node-list data structure.
1891 * @retry: number of retries to the command IOCB.
1893 * This routine issues a Process Login (PRLI) ELS command for the
1894 * @vport. The PRLI service parameters are set up in the payload of the
1895 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
1896 * is put to the IOCB completion callback func field before invoking the
1897 * routine lpfc_sli_issue_iocb() to send out PRLI command.
1899 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1900 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1901 * will be stored into the context1 field of the IOCB for the completion
1902 * callback function to the PRLI ELS command.
1905 * 0 - successfully issued prli iocb command for @vport
1906 * 1 - failed to issue prli iocb command for @vport
1909 lpfc_issue_els_prli(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1912 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1913 struct lpfc_hba
*phba
= vport
->phba
;
1916 struct lpfc_iocbq
*elsiocb
;
1920 cmdsize
= (sizeof(uint32_t) + sizeof(PRLI
));
1921 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
1922 ndlp
->nlp_DID
, ELS_CMD_PRLI
);
1926 icmd
= &elsiocb
->iocb
;
1927 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
1929 /* For PRLI request, remainder of payload is service parameters */
1930 memset(pcmd
, 0, (sizeof(PRLI
) + sizeof(uint32_t)));
1931 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLI
;
1932 pcmd
+= sizeof(uint32_t);
1934 /* For PRLI, remainder of payload is PRLI parameter page */
1935 npr
= (PRLI
*) pcmd
;
1937 * If our firmware version is 3.20 or later,
1938 * set the following bits for FC-TAPE support.
1940 if (phba
->vpd
.rev
.feaLevelHigh
>= 0x02) {
1941 npr
->ConfmComplAllowed
= 1;
1943 npr
->TaskRetryIdReq
= 1;
1945 npr
->estabImagePair
= 1;
1946 npr
->readXferRdyDis
= 1;
1948 /* For FCP support */
1949 npr
->prliType
= PRLI_FCP_TYPE
;
1950 npr
->initiatorFunc
= 1;
1952 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1953 "Issue PRLI: did:x%x",
1954 ndlp
->nlp_DID
, 0, 0);
1956 phba
->fc_stat
.elsXmitPRLI
++;
1957 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_prli
;
1958 spin_lock_irq(shost
->host_lock
);
1959 ndlp
->nlp_flag
|= NLP_PRLI_SND
;
1960 spin_unlock_irq(shost
->host_lock
);
1961 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
1963 spin_lock_irq(shost
->host_lock
);
1964 ndlp
->nlp_flag
&= ~NLP_PRLI_SND
;
1965 spin_unlock_irq(shost
->host_lock
);
1966 lpfc_els_free_iocb(phba
, elsiocb
);
1969 vport
->fc_prli_sent
++;
1974 * lpfc_rscn_disc - Perform rscn discovery for a vport
1975 * @vport: pointer to a host virtual N_Port data structure.
1977 * This routine performs Registration State Change Notification (RSCN)
1978 * discovery for a @vport. If the @vport's node port recovery count is not
1979 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
1980 * the nodes that need recovery. If none of the PLOGI were needed through
1981 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
1982 * invoked to check and handle possible more RSCN came in during the period
1983 * of processing the current ones.
1986 lpfc_rscn_disc(struct lpfc_vport
*vport
)
1988 lpfc_can_disctmo(vport
);
1990 /* RSCN discovery */
1991 /* go thru NPR nodes and issue ELS PLOGIs */
1992 if (vport
->fc_npr_cnt
)
1993 if (lpfc_els_disc_plogi(vport
))
1996 lpfc_end_rscn(vport
);
2000 * lpfc_adisc_done - Complete the adisc phase of discovery
2001 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2003 * This function is called when the final ADISC is completed during discovery.
2004 * This function handles clearing link attention or issuing reg_vpi depending
2005 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2007 * This function is called with no locks held.
2010 lpfc_adisc_done(struct lpfc_vport
*vport
)
2012 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2013 struct lpfc_hba
*phba
= vport
->phba
;
2016 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2017 * and continue discovery.
2019 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2020 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
2021 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
2022 lpfc_issue_reg_vpi(phba
, vport
);
2026 * For SLI2, we need to set port_state to READY
2027 * and continue discovery.
2029 if (vport
->port_state
< LPFC_VPORT_READY
) {
2030 /* If we get here, there is nothing to ADISC */
2031 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
2032 lpfc_issue_clear_la(phba
, vport
);
2033 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2034 vport
->num_disc_nodes
= 0;
2035 /* go thru NPR list, issue ELS PLOGIs */
2036 if (vport
->fc_npr_cnt
)
2037 lpfc_els_disc_plogi(vport
);
2038 if (!vport
->num_disc_nodes
) {
2039 spin_lock_irq(shost
->host_lock
);
2040 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2041 spin_unlock_irq(shost
->host_lock
);
2042 lpfc_can_disctmo(vport
);
2043 lpfc_end_rscn(vport
);
2046 vport
->port_state
= LPFC_VPORT_READY
;
2048 lpfc_rscn_disc(vport
);
2052 * lpfc_more_adisc - Issue more adisc as needed
2053 * @vport: pointer to a host virtual N_Port data structure.
2055 * This routine determines whether there are more ndlps on a @vport
2056 * node list need to have Address Discover (ADISC) issued. If so, it will
2057 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2058 * remaining nodes which need to have ADISC sent.
2061 lpfc_more_adisc(struct lpfc_vport
*vport
)
2065 if (vport
->num_disc_nodes
)
2066 vport
->num_disc_nodes
--;
2067 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2068 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2069 "0210 Continue discovery with %d ADISCs to go "
2070 "Data: x%x x%x x%x\n",
2071 vport
->num_disc_nodes
, vport
->fc_adisc_cnt
,
2072 vport
->fc_flag
, vport
->port_state
);
2073 /* Check to see if there are more ADISCs to be sent */
2074 if (vport
->fc_flag
& FC_NLP_MORE
) {
2075 lpfc_set_disctmo(vport
);
2076 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2077 sentadisc
= lpfc_els_disc_adisc(vport
);
2079 if (!vport
->num_disc_nodes
)
2080 lpfc_adisc_done(vport
);
2085 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2086 * @phba: pointer to lpfc hba data structure.
2087 * @cmdiocb: pointer to lpfc command iocb data structure.
2088 * @rspiocb: pointer to lpfc response iocb data structure.
2090 * This routine is the completion function for issuing the Address Discover
2091 * (ADISC) command. It first checks to see whether link went down during
2092 * the discovery process. If so, the node will be marked as node port
2093 * recovery for issuing discover IOCB by the link attention handler and
2094 * exit. Otherwise, the response status is checked. If error was reported
2095 * in the response status, the ADISC command shall be retried by invoking
2096 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2097 * the response status, the state machine is invoked to set transition
2098 * with respect to NLP_EVT_CMPL_ADISC event.
2101 lpfc_cmpl_els_adisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2102 struct lpfc_iocbq
*rspiocb
)
2104 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2105 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2107 struct lpfc_nodelist
*ndlp
;
2110 /* we pass cmdiocb to state machine which needs rspiocb as well */
2111 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2113 irsp
= &(rspiocb
->iocb
);
2114 ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2116 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2117 "ADISC cmpl: status:x%x/x%x did:x%x",
2118 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2121 /* Since ndlp can be freed in the disc state machine, note if this node
2122 * is being used during discovery.
2124 spin_lock_irq(shost
->host_lock
);
2125 disc
= (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
);
2126 ndlp
->nlp_flag
&= ~(NLP_ADISC_SND
| NLP_NPR_2B_DISC
);
2127 spin_unlock_irq(shost
->host_lock
);
2128 /* ADISC completes to NPort <nlp_DID> */
2129 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2130 "0104 ADISC completes to NPort x%x "
2131 "Data: x%x x%x x%x x%x x%x\n",
2132 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2133 irsp
->ulpTimeout
, disc
, vport
->num_disc_nodes
);
2134 /* Check to see if link went down during discovery */
2135 if (lpfc_els_chk_latt(vport
)) {
2136 spin_lock_irq(shost
->host_lock
);
2137 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2138 spin_unlock_irq(shost
->host_lock
);
2142 if (irsp
->ulpStatus
) {
2143 /* Check for retry */
2144 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
)) {
2145 /* ELS command is being retried */
2147 spin_lock_irq(shost
->host_lock
);
2148 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2149 spin_unlock_irq(shost
->host_lock
);
2150 lpfc_set_disctmo(vport
);
2155 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2156 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2157 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2158 irsp
->un
.ulpWord
[4]);
2159 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2160 if (!lpfc_error_lost_link(irsp
))
2161 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2162 NLP_EVT_CMPL_ADISC
);
2164 /* Good status, call state machine */
2165 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2166 NLP_EVT_CMPL_ADISC
);
2168 /* Check to see if there are more ADISCs to be sent */
2169 if (disc
&& vport
->num_disc_nodes
)
2170 lpfc_more_adisc(vport
);
2172 lpfc_els_free_iocb(phba
, cmdiocb
);
2177 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2178 * @vport: pointer to a virtual N_Port data structure.
2179 * @ndlp: pointer to a node-list data structure.
2180 * @retry: number of retries to the command IOCB.
2182 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2183 * @vport. It prepares the payload of the ADISC ELS command, updates the
2184 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2185 * to issue the ADISC ELS command.
2187 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2188 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2189 * will be stored into the context1 field of the IOCB for the completion
2190 * callback function to the ADISC ELS command.
2193 * 0 - successfully issued adisc
2194 * 1 - failed to issue adisc
2197 lpfc_issue_els_adisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2200 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2201 struct lpfc_hba
*phba
= vport
->phba
;
2204 struct lpfc_iocbq
*elsiocb
;
2208 cmdsize
= (sizeof(uint32_t) + sizeof(ADISC
));
2209 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2210 ndlp
->nlp_DID
, ELS_CMD_ADISC
);
2214 icmd
= &elsiocb
->iocb
;
2215 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2217 /* For ADISC request, remainder of payload is service parameters */
2218 *((uint32_t *) (pcmd
)) = ELS_CMD_ADISC
;
2219 pcmd
+= sizeof(uint32_t);
2221 /* Fill in ADISC payload */
2222 ap
= (ADISC
*) pcmd
;
2223 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
2224 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2225 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2226 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
2228 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2229 "Issue ADISC: did:x%x",
2230 ndlp
->nlp_DID
, 0, 0);
2232 phba
->fc_stat
.elsXmitADISC
++;
2233 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_adisc
;
2234 spin_lock_irq(shost
->host_lock
);
2235 ndlp
->nlp_flag
|= NLP_ADISC_SND
;
2236 spin_unlock_irq(shost
->host_lock
);
2237 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2239 spin_lock_irq(shost
->host_lock
);
2240 ndlp
->nlp_flag
&= ~NLP_ADISC_SND
;
2241 spin_unlock_irq(shost
->host_lock
);
2242 lpfc_els_free_iocb(phba
, elsiocb
);
2249 * lpfc_cmpl_els_logo - Completion callback function for logo
2250 * @phba: pointer to lpfc hba data structure.
2251 * @cmdiocb: pointer to lpfc command iocb data structure.
2252 * @rspiocb: pointer to lpfc response iocb data structure.
2254 * This routine is the completion function for issuing the ELS Logout (LOGO)
2255 * command. If no error status was reported from the LOGO response, the
2256 * state machine of the associated ndlp shall be invoked for transition with
2257 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2258 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2261 lpfc_cmpl_els_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2262 struct lpfc_iocbq
*rspiocb
)
2264 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2265 struct lpfc_vport
*vport
= ndlp
->vport
;
2266 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2268 struct lpfc_sli
*psli
;
2269 struct lpfcMboxq
*mbox
;
2272 /* we pass cmdiocb to state machine which needs rspiocb as well */
2273 cmdiocb
->context_un
.rsp_iocb
= rspiocb
;
2275 irsp
= &(rspiocb
->iocb
);
2276 spin_lock_irq(shost
->host_lock
);
2277 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2278 spin_unlock_irq(shost
->host_lock
);
2280 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2281 "LOGO cmpl: status:x%x/x%x did:x%x",
2282 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2284 /* LOGO completes to NPort <nlp_DID> */
2285 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2286 "0105 LOGO completes to NPort x%x "
2287 "Data: x%x x%x x%x x%x\n",
2288 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2289 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
2290 /* Check to see if link went down during discovery */
2291 if (lpfc_els_chk_latt(vport
))
2294 if (ndlp
->nlp_flag
& NLP_TARGET_REMOVE
) {
2295 /* NLP_EVT_DEVICE_RM should unregister the RPI
2296 * which should abort all outstanding IOs.
2298 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2303 if (irsp
->ulpStatus
) {
2304 /* Check for retry */
2305 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
2306 /* ELS command is being retried */
2309 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2310 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2311 ndlp
->nlp_DID
, irsp
->ulpStatus
,
2312 irsp
->un
.ulpWord
[4]);
2313 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2314 if (lpfc_error_lost_link(irsp
))
2317 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2320 /* Good status, call state machine.
2321 * This will unregister the rpi if needed.
2323 lpfc_disc_state_machine(vport
, ndlp
, cmdiocb
,
2326 lpfc_els_free_iocb(phba
, cmdiocb
);
2327 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2328 if ((vport
->fc_flag
& FC_PT2PT
) &&
2329 !(vport
->fc_flag
& FC_PT2PT_PLOGI
)) {
2330 phba
->pport
->fc_myDID
= 0;
2331 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2333 lpfc_config_link(phba
, mbox
);
2334 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2335 mbox
->vport
= vport
;
2336 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
) ==
2338 mempool_free(mbox
, phba
->mbox_mem_pool
);
2346 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2347 * @vport: pointer to a virtual N_Port data structure.
2348 * @ndlp: pointer to a node-list data structure.
2349 * @retry: number of retries to the command IOCB.
2351 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2352 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2353 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2354 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2356 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2357 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2358 * will be stored into the context1 field of the IOCB for the completion
2359 * callback function to the LOGO ELS command.
2362 * 0 - successfully issued logo
2363 * 1 - failed to issue logo
2366 lpfc_issue_els_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2369 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2370 struct lpfc_hba
*phba
= vport
->phba
;
2372 struct lpfc_iocbq
*elsiocb
;
2377 spin_lock_irq(shost
->host_lock
);
2378 if (ndlp
->nlp_flag
& NLP_LOGO_SND
) {
2379 spin_unlock_irq(shost
->host_lock
);
2382 spin_unlock_irq(shost
->host_lock
);
2384 cmdsize
= (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name
);
2385 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2386 ndlp
->nlp_DID
, ELS_CMD_LOGO
);
2390 icmd
= &elsiocb
->iocb
;
2391 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2392 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
2393 pcmd
+= sizeof(uint32_t);
2395 /* Fill in LOGO payload */
2396 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
2397 pcmd
+= sizeof(uint32_t);
2398 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2400 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2401 "Issue LOGO: did:x%x",
2402 ndlp
->nlp_DID
, 0, 0);
2404 phba
->fc_stat
.elsXmitLOGO
++;
2405 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo
;
2406 spin_lock_irq(shost
->host_lock
);
2407 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
2408 spin_unlock_irq(shost
->host_lock
);
2409 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
2411 if (rc
== IOCB_ERROR
) {
2412 spin_lock_irq(shost
->host_lock
);
2413 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
2414 spin_unlock_irq(shost
->host_lock
);
2415 lpfc_els_free_iocb(phba
, elsiocb
);
2422 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2423 * @phba: pointer to lpfc hba data structure.
2424 * @cmdiocb: pointer to lpfc command iocb data structure.
2425 * @rspiocb: pointer to lpfc response iocb data structure.
2427 * This routine is a generic completion callback function for ELS commands.
2428 * Specifically, it is the callback function which does not need to perform
2429 * any command specific operations. It is currently used by the ELS command
2430 * issuing routines for the ELS State Change Request (SCR),
2431 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2432 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2433 * certain debug loggings, this callback function simply invokes the
2434 * lpfc_els_chk_latt() routine to check whether link went down during the
2435 * discovery process.
2438 lpfc_cmpl_els_cmd(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2439 struct lpfc_iocbq
*rspiocb
)
2441 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2444 irsp
= &rspiocb
->iocb
;
2446 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2447 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2448 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
2449 irsp
->un
.elsreq64
.remoteID
);
2450 /* ELS cmd tag <ulpIoTag> completes */
2451 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
2452 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2453 irsp
->ulpIoTag
, irsp
->ulpStatus
,
2454 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
2455 /* Check to see if link went down during discovery */
2456 lpfc_els_chk_latt(vport
);
2457 lpfc_els_free_iocb(phba
, cmdiocb
);
2462 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2463 * @vport: pointer to a host virtual N_Port data structure.
2464 * @nportid: N_Port identifier to the remote node.
2465 * @retry: number of retries to the command IOCB.
2467 * This routine issues a State Change Request (SCR) to a fabric node
2468 * on a @vport. The remote node @nportid is passed into the function. It
2469 * first search the @vport node list to find the matching ndlp. If no such
2470 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2471 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2472 * routine is invoked to send the SCR IOCB.
2474 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2475 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2476 * will be stored into the context1 field of the IOCB for the completion
2477 * callback function to the SCR ELS command.
2480 * 0 - Successfully issued scr command
2481 * 1 - Failed to issue scr command
2484 lpfc_issue_els_scr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2486 struct lpfc_hba
*phba
= vport
->phba
;
2488 struct lpfc_iocbq
*elsiocb
;
2489 struct lpfc_sli
*psli
;
2492 struct lpfc_nodelist
*ndlp
;
2495 cmdsize
= (sizeof(uint32_t) + sizeof(SCR
));
2497 ndlp
= lpfc_findnode_did(vport
, nportid
);
2499 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2502 lpfc_nlp_init(vport
, ndlp
, nportid
);
2503 lpfc_enqueue_node(vport
, ndlp
);
2504 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2505 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2510 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2511 ndlp
->nlp_DID
, ELS_CMD_SCR
);
2514 /* This will trigger the release of the node just
2521 icmd
= &elsiocb
->iocb
;
2522 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2524 *((uint32_t *) (pcmd
)) = ELS_CMD_SCR
;
2525 pcmd
+= sizeof(uint32_t);
2527 /* For SCR, remainder of payload is SCR parameter page */
2528 memset(pcmd
, 0, sizeof(SCR
));
2529 ((SCR
*) pcmd
)->Function
= SCR_FUNC_FULL
;
2531 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2532 "Issue SCR: did:x%x",
2533 ndlp
->nlp_DID
, 0, 0);
2535 phba
->fc_stat
.elsXmitSCR
++;
2536 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2537 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2539 /* The additional lpfc_nlp_put will cause the following
2540 * lpfc_els_free_iocb routine to trigger the rlease of
2544 lpfc_els_free_iocb(phba
, elsiocb
);
2547 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2548 * trigger the release of node.
2555 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2556 * @vport: pointer to a host virtual N_Port data structure.
2557 * @nportid: N_Port identifier to the remote node.
2558 * @retry: number of retries to the command IOCB.
2560 * This routine issues a Fibre Channel Address Resolution Response
2561 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2562 * is passed into the function. It first search the @vport node list to find
2563 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2564 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2565 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2567 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2568 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2569 * will be stored into the context1 field of the IOCB for the completion
2570 * callback function to the PARPR ELS command.
2573 * 0 - Successfully issued farpr command
2574 * 1 - Failed to issue farpr command
2577 lpfc_issue_els_farpr(struct lpfc_vport
*vport
, uint32_t nportid
, uint8_t retry
)
2579 struct lpfc_hba
*phba
= vport
->phba
;
2581 struct lpfc_iocbq
*elsiocb
;
2582 struct lpfc_sli
*psli
;
2587 struct lpfc_nodelist
*ondlp
;
2588 struct lpfc_nodelist
*ndlp
;
2591 cmdsize
= (sizeof(uint32_t) + sizeof(FARP
));
2593 ndlp
= lpfc_findnode_did(vport
, nportid
);
2595 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
2598 lpfc_nlp_init(vport
, ndlp
, nportid
);
2599 lpfc_enqueue_node(vport
, ndlp
);
2600 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2601 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
2606 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
,
2607 ndlp
->nlp_DID
, ELS_CMD_RNID
);
2609 /* This will trigger the release of the node just
2616 icmd
= &elsiocb
->iocb
;
2617 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
2619 *((uint32_t *) (pcmd
)) = ELS_CMD_FARPR
;
2620 pcmd
+= sizeof(uint32_t);
2622 /* Fill in FARPR payload */
2623 fp
= (FARP
*) (pcmd
);
2624 memset(fp
, 0, sizeof(FARP
));
2625 lp
= (uint32_t *) pcmd
;
2626 *lp
++ = be32_to_cpu(nportid
);
2627 *lp
++ = be32_to_cpu(vport
->fc_myDID
);
2629 fp
->Mflags
= (FARP_MATCH_PORT
| FARP_MATCH_NODE
);
2631 memcpy(&fp
->RportName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
2632 memcpy(&fp
->RnodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
2633 ondlp
= lpfc_findnode_did(vport
, nportid
);
2634 if (ondlp
&& NLP_CHK_NODE_ACT(ondlp
)) {
2635 memcpy(&fp
->OportName
, &ondlp
->nlp_portname
,
2636 sizeof(struct lpfc_name
));
2637 memcpy(&fp
->OnodeName
, &ondlp
->nlp_nodename
,
2638 sizeof(struct lpfc_name
));
2641 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2642 "Issue FARPR: did:x%x",
2643 ndlp
->nlp_DID
, 0, 0);
2645 phba
->fc_stat
.elsXmitFARPR
++;
2646 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_cmd
;
2647 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
2649 /* The additional lpfc_nlp_put will cause the following
2650 * lpfc_els_free_iocb routine to trigger the release of
2654 lpfc_els_free_iocb(phba
, elsiocb
);
2657 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2658 * trigger the release of the node.
2665 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2666 * @vport: pointer to a host virtual N_Port data structure.
2667 * @nlp: pointer to a node-list data structure.
2669 * This routine cancels the timer with a delayed IOCB-command retry for
2670 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2671 * removes the ELS retry event if it presents. In addition, if the
2672 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2673 * commands are sent for the @vport's nodes that require issuing discovery
2677 lpfc_cancel_retry_delay_tmo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*nlp
)
2679 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2680 struct lpfc_work_evt
*evtp
;
2682 if (!(nlp
->nlp_flag
& NLP_DELAY_TMO
))
2684 spin_lock_irq(shost
->host_lock
);
2685 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2686 spin_unlock_irq(shost
->host_lock
);
2687 del_timer_sync(&nlp
->nlp_delayfunc
);
2688 nlp
->nlp_last_elscmd
= 0;
2689 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
)) {
2690 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
2691 /* Decrement nlp reference count held for the delayed retry */
2692 evtp
= &nlp
->els_retry_evt
;
2693 lpfc_nlp_put((struct lpfc_nodelist
*)evtp
->evt_arg1
);
2695 if (nlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
2696 spin_lock_irq(shost
->host_lock
);
2697 nlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
2698 spin_unlock_irq(shost
->host_lock
);
2699 if (vport
->num_disc_nodes
) {
2700 if (vport
->port_state
< LPFC_VPORT_READY
) {
2701 /* Check if there are more ADISCs to be sent */
2702 lpfc_more_adisc(vport
);
2704 /* Check if there are more PLOGIs to be sent */
2705 lpfc_more_plogi(vport
);
2706 if (vport
->num_disc_nodes
== 0) {
2707 spin_lock_irq(shost
->host_lock
);
2708 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2709 spin_unlock_irq(shost
->host_lock
);
2710 lpfc_can_disctmo(vport
);
2711 lpfc_end_rscn(vport
);
2720 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2721 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2723 * This routine is invoked by the ndlp delayed-function timer to check
2724 * whether there is any pending ELS retry event(s) with the node. If not, it
2725 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2726 * adds the delayed events to the HBA work list and invokes the
2727 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2728 * event. Note that lpfc_nlp_get() is called before posting the event to
2729 * the work list to hold reference count of ndlp so that it guarantees the
2730 * reference to ndlp will still be available when the worker thread gets
2731 * to the event associated with the ndlp.
2734 lpfc_els_retry_delay(unsigned long ptr
)
2736 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2737 struct lpfc_vport
*vport
= ndlp
->vport
;
2738 struct lpfc_hba
*phba
= vport
->phba
;
2739 unsigned long flags
;
2740 struct lpfc_work_evt
*evtp
= &ndlp
->els_retry_evt
;
2742 spin_lock_irqsave(&phba
->hbalock
, flags
);
2743 if (!list_empty(&evtp
->evt_listp
)) {
2744 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2748 /* We need to hold the node by incrementing the reference
2749 * count until the queued work is done
2751 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
2752 if (evtp
->evt_arg1
) {
2753 evtp
->evt
= LPFC_EVT_ELS_RETRY
;
2754 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2755 lpfc_worker_wake_up(phba
);
2757 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2762 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
2763 * @ndlp: pointer to a node-list data structure.
2765 * This routine is the worker-thread handler for processing the @ndlp delayed
2766 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
2767 * the last ELS command from the associated ndlp and invokes the proper ELS
2768 * function according to the delayed ELS command to retry the command.
2771 lpfc_els_retry_delay_handler(struct lpfc_nodelist
*ndlp
)
2773 struct lpfc_vport
*vport
= ndlp
->vport
;
2774 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2775 uint32_t cmd
, did
, retry
;
2777 spin_lock_irq(shost
->host_lock
);
2778 did
= ndlp
->nlp_DID
;
2779 cmd
= ndlp
->nlp_last_elscmd
;
2780 ndlp
->nlp_last_elscmd
= 0;
2782 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
2783 spin_unlock_irq(shost
->host_lock
);
2787 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2788 spin_unlock_irq(shost
->host_lock
);
2790 * If a discovery event readded nlp_delayfunc after timer
2791 * firing and before processing the timer, cancel the
2794 del_timer_sync(&ndlp
->nlp_delayfunc
);
2795 retry
= ndlp
->nlp_retry
;
2796 ndlp
->nlp_retry
= 0;
2800 lpfc_issue_els_flogi(vport
, ndlp
, retry
);
2803 if (!lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, retry
)) {
2804 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2805 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
2809 if (!lpfc_issue_els_adisc(vport
, ndlp
, retry
)) {
2810 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2811 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
2815 if (!lpfc_issue_els_prli(vport
, ndlp
, retry
)) {
2816 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2817 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
2821 if (!lpfc_issue_els_logo(vport
, ndlp
, retry
)) {
2822 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
2823 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
2827 if (!(vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
))
2828 lpfc_issue_els_fdisc(vport
, ndlp
, retry
);
2835 * lpfc_els_retry - Make retry decision on an els command iocb
2836 * @phba: pointer to lpfc hba data structure.
2837 * @cmdiocb: pointer to lpfc command iocb data structure.
2838 * @rspiocb: pointer to lpfc response iocb data structure.
2840 * This routine makes a retry decision on an ELS command IOCB, which has
2841 * failed. The following ELS IOCBs use this function for retrying the command
2842 * when previously issued command responsed with error status: FLOGI, PLOGI,
2843 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
2844 * returned error status, it makes the decision whether a retry shall be
2845 * issued for the command, and whether a retry shall be made immediately or
2846 * delayed. In the former case, the corresponding ELS command issuing-function
2847 * is called to retry the command. In the later case, the ELS command shall
2848 * be posted to the ndlp delayed event and delayed function timer set to the
2849 * ndlp for the delayed command issusing.
2852 * 0 - No retry of els command is made
2853 * 1 - Immediate or delayed retry of els command is made
2856 lpfc_els_retry(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
2857 struct lpfc_iocbq
*rspiocb
)
2859 struct lpfc_vport
*vport
= cmdiocb
->vport
;
2860 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2861 IOCB_t
*irsp
= &rspiocb
->iocb
;
2862 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
2863 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
2866 int retry
= 0, maxretry
= lpfc_max_els_tries
, delay
= 0;
2872 /* Note: context2 may be 0 for internal driver abort
2873 * of delays ELS command.
2876 if (pcmd
&& pcmd
->virt
) {
2877 elscmd
= (uint32_t *) (pcmd
->virt
);
2881 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
2882 did
= ndlp
->nlp_DID
;
2884 /* We should only hit this case for retrying PLOGI */
2885 did
= irsp
->un
.elsreq64
.remoteID
;
2886 ndlp
= lpfc_findnode_did(vport
, did
);
2887 if ((!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
2888 && (cmd
!= ELS_CMD_PLOGI
))
2892 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2893 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
2894 *(((uint32_t *) irsp
) + 7), irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
2896 switch (irsp
->ulpStatus
) {
2897 case IOSTAT_FCP_RSP_ERROR
:
2899 case IOSTAT_REMOTE_STOP
:
2900 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2901 /* This IO was aborted by the target, we don't
2902 * know the rxid and because we did not send the
2903 * ABTS we cannot generate and RRQ.
2905 lpfc_set_rrq_active(phba
, ndlp
,
2906 cmdiocb
->sli4_xritag
, 0, 0);
2909 case IOSTAT_LOCAL_REJECT
:
2910 switch ((irsp
->un
.ulpWord
[4] & 0xff)) {
2911 case IOERR_LOOP_OPEN_FAILURE
:
2912 if (cmd
== ELS_CMD_FLOGI
) {
2913 if (PCI_DEVICE_ID_HORNET
==
2914 phba
->pcidev
->device
) {
2915 phba
->fc_topology
= LPFC_TOPOLOGY_LOOP
;
2916 phba
->pport
->fc_myDID
= 0;
2917 phba
->alpa_map
[0] = 0;
2918 phba
->alpa_map
[1] = 0;
2921 if (cmd
== ELS_CMD_PLOGI
&& cmdiocb
->retry
== 0)
2926 case IOERR_ILLEGAL_COMMAND
:
2927 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2928 "0124 Retry illegal cmd x%x "
2929 "retry:x%x delay:x%x\n",
2930 cmd
, cmdiocb
->retry
, delay
);
2932 /* All command's retry policy */
2934 if (cmdiocb
->retry
> 2)
2938 case IOERR_NO_RESOURCES
:
2939 logerr
= 1; /* HBA out of resources */
2941 if (cmdiocb
->retry
> 100)
2946 case IOERR_ILLEGAL_FRAME
:
2951 case IOERR_SEQUENCE_TIMEOUT
:
2952 case IOERR_INVALID_RPI
:
2958 case IOSTAT_NPORT_RJT
:
2959 case IOSTAT_FABRIC_RJT
:
2960 if (irsp
->un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
2966 case IOSTAT_NPORT_BSY
:
2967 case IOSTAT_FABRIC_BSY
:
2968 logerr
= 1; /* Fabric / Remote NPort out of resources */
2973 stat
.un
.lsRjtError
= be32_to_cpu(irsp
->un
.ulpWord
[4]);
2974 /* Added for Vendor specifc support
2975 * Just keep retrying for these Rsn / Exp codes
2977 switch (stat
.un
.b
.lsRjtRsnCode
) {
2978 case LSRJT_UNABLE_TPC
:
2979 if (stat
.un
.b
.lsRjtRsnCodeExp
==
2980 LSEXP_CMD_IN_PROGRESS
) {
2981 if (cmd
== ELS_CMD_PLOGI
) {
2988 if (stat
.un
.b
.lsRjtRsnCodeExp
==
2989 LSEXP_CANT_GIVE_DATA
) {
2990 if (cmd
== ELS_CMD_PLOGI
) {
2997 if (cmd
== ELS_CMD_PLOGI
) {
2999 maxretry
= lpfc_max_els_tries
+ 1;
3003 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3004 (cmd
== ELS_CMD_FDISC
) &&
3005 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_OUT_OF_RESOURCE
)){
3006 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3007 "0125 FDISC Failed (x%x). "
3008 "Fabric out of resources\n",
3009 stat
.un
.lsRjtError
);
3010 lpfc_vport_set_state(vport
,
3011 FC_VPORT_NO_FABRIC_RSCS
);
3015 case LSRJT_LOGICAL_BSY
:
3016 if ((cmd
== ELS_CMD_PLOGI
) ||
3017 (cmd
== ELS_CMD_PRLI
)) {
3020 } else if (cmd
== ELS_CMD_FDISC
) {
3021 /* FDISC retry policy */
3023 if (cmdiocb
->retry
>= 32)
3029 case LSRJT_LOGICAL_ERR
:
3030 /* There are some cases where switches return this
3031 * error when they are not ready and should be returning
3032 * Logical Busy. We should delay every time.
3034 if (cmd
== ELS_CMD_FDISC
&&
3035 stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_PORT_LOGIN_REQ
) {
3041 case LSRJT_PROTOCOL_ERR
:
3042 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
3043 (cmd
== ELS_CMD_FDISC
) &&
3044 ((stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_PNAME
) ||
3045 (stat
.un
.b
.lsRjtRsnCodeExp
== LSEXP_INVALID_NPORT_ID
))
3047 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3048 "0122 FDISC Failed (x%x). "
3049 "Fabric Detected Bad WWN\n",
3050 stat
.un
.lsRjtError
);
3051 lpfc_vport_set_state(vport
,
3052 FC_VPORT_FABRIC_REJ_WWN
);
3058 case IOSTAT_INTERMED_RSP
:
3066 if (did
== FDMI_DID
)
3069 if (((cmd
== ELS_CMD_FLOGI
) || (cmd
== ELS_CMD_FDISC
)) &&
3070 (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
) &&
3071 !lpfc_error_lost_link(irsp
)) {
3072 /* FLOGI retry policy */
3076 if (cmdiocb
->retry
>= 100)
3078 else if (cmdiocb
->retry
>= 32)
3083 if (maxretry
&& (cmdiocb
->retry
>= maxretry
)) {
3084 phba
->fc_stat
.elsRetryExceeded
++;
3088 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
3092 if ((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_FDISC
)) {
3093 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3094 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
3095 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3096 "2849 Stop retry ELS command "
3097 "x%x to remote NPORT x%x, "
3098 "Data: x%x x%x\n", cmd
, did
,
3099 cmdiocb
->retry
, delay
);
3104 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3105 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3106 "0107 Retry ELS command x%x to remote "
3107 "NPORT x%x Data: x%x x%x\n",
3108 cmd
, did
, cmdiocb
->retry
, delay
);
3110 if (((cmd
== ELS_CMD_PLOGI
) || (cmd
== ELS_CMD_ADISC
)) &&
3111 ((irsp
->ulpStatus
!= IOSTAT_LOCAL_REJECT
) ||
3112 ((irsp
->un
.ulpWord
[4] & 0xff) != IOERR_NO_RESOURCES
))) {
3113 /* Don't reset timer for no resources */
3115 /* If discovery / RSCN timer is running, reset it */
3116 if (timer_pending(&vport
->fc_disctmo
) ||
3117 (vport
->fc_flag
& FC_RSCN_MODE
))
3118 lpfc_set_disctmo(vport
);
3121 phba
->fc_stat
.elsXmitRetry
++;
3122 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) && delay
) {
3123 phba
->fc_stat
.elsDelayRetry
++;
3124 ndlp
->nlp_retry
= cmdiocb
->retry
;
3126 /* delay is specified in milliseconds */
3127 mod_timer(&ndlp
->nlp_delayfunc
,
3128 jiffies
+ msecs_to_jiffies(delay
));
3129 spin_lock_irq(shost
->host_lock
);
3130 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
3131 spin_unlock_irq(shost
->host_lock
);
3133 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3134 if (cmd
== ELS_CMD_PRLI
)
3135 lpfc_nlp_set_state(vport
, ndlp
,
3136 NLP_STE_REG_LOGIN_ISSUE
);
3138 lpfc_nlp_set_state(vport
, ndlp
,
3140 ndlp
->nlp_last_elscmd
= cmd
;
3146 lpfc_issue_els_flogi(vport
, ndlp
, cmdiocb
->retry
);
3149 lpfc_issue_els_fdisc(vport
, ndlp
, cmdiocb
->retry
);
3152 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3153 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3154 lpfc_nlp_set_state(vport
, ndlp
,
3155 NLP_STE_PLOGI_ISSUE
);
3157 lpfc_issue_els_plogi(vport
, did
, cmdiocb
->retry
);
3160 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3161 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
3162 lpfc_issue_els_adisc(vport
, ndlp
, cmdiocb
->retry
);
3165 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3166 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PRLI_ISSUE
);
3167 lpfc_issue_els_prli(vport
, ndlp
, cmdiocb
->retry
);
3170 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3171 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
3172 lpfc_issue_els_logo(vport
, ndlp
, cmdiocb
->retry
);
3176 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3178 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3179 "0137 No retry ELS command x%x to remote "
3180 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3181 cmd
, did
, irsp
->ulpStatus
,
3182 irsp
->un
.ulpWord
[4]);
3185 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3186 "0108 No retry ELS command x%x to remote "
3187 "NPORT x%x Retried:%d Error:x%x/%x\n",
3188 cmd
, did
, cmdiocb
->retry
, irsp
->ulpStatus
,
3189 irsp
->un
.ulpWord
[4]);
3195 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3196 * @phba: pointer to lpfc hba data structure.
3197 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3199 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3200 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3201 * checks to see whether there is a lpfc DMA buffer associated with the
3202 * response of the command IOCB. If so, it will be released before releasing
3203 * the lpfc DMA buffer associated with the IOCB itself.
3206 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3209 lpfc_els_free_data(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr1
)
3211 struct lpfc_dmabuf
*buf_ptr
;
3213 /* Free the response before processing the command. */
3214 if (!list_empty(&buf_ptr1
->list
)) {
3215 list_remove_head(&buf_ptr1
->list
, buf_ptr
,
3218 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3221 lpfc_mbuf_free(phba
, buf_ptr1
->virt
, buf_ptr1
->phys
);
3227 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3228 * @phba: pointer to lpfc hba data structure.
3229 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3231 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3232 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3236 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3239 lpfc_els_free_bpl(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*buf_ptr
)
3241 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
3247 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3248 * @phba: pointer to lpfc hba data structure.
3249 * @elsiocb: pointer to lpfc els command iocb data structure.
3251 * This routine frees a command IOCB and its associated resources. The
3252 * command IOCB data structure contains the reference to various associated
3253 * resources, these fields must be set to NULL if the associated reference
3255 * context1 - reference to ndlp
3256 * context2 - reference to cmd
3257 * context2->next - reference to rsp
3258 * context3 - reference to bpl
3260 * It first properly decrements the reference count held on ndlp for the
3261 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3262 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3263 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3264 * adds the DMA buffer the @phba data structure for the delayed release.
3265 * If reference to the Buffer Pointer List (BPL) is present, the
3266 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3267 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3268 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3271 * 0 - Success (currently, always return 0)
3274 lpfc_els_free_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*elsiocb
)
3276 struct lpfc_dmabuf
*buf_ptr
, *buf_ptr1
;
3277 struct lpfc_nodelist
*ndlp
;
3279 ndlp
= (struct lpfc_nodelist
*)elsiocb
->context1
;
3281 if (ndlp
->nlp_flag
& NLP_DEFER_RM
) {
3284 /* If the ndlp is not being used by another discovery
3287 if (!lpfc_nlp_not_used(ndlp
)) {
3288 /* If ndlp is being used by another discovery
3289 * thread, just clear NLP_DEFER_RM
3291 ndlp
->nlp_flag
&= ~NLP_DEFER_RM
;
3296 elsiocb
->context1
= NULL
;
3298 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3299 if (elsiocb
->context2
) {
3300 if (elsiocb
->iocb_flag
& LPFC_DELAY_MEM_FREE
) {
3301 /* Firmware could still be in progress of DMAing
3302 * payload, so don't free data buffer till after
3305 elsiocb
->iocb_flag
&= ~LPFC_DELAY_MEM_FREE
;
3306 buf_ptr
= elsiocb
->context2
;
3307 elsiocb
->context2
= NULL
;
3310 spin_lock_irq(&phba
->hbalock
);
3311 if (!list_empty(&buf_ptr
->list
)) {
3312 list_remove_head(&buf_ptr
->list
,
3313 buf_ptr1
, struct lpfc_dmabuf
,
3315 INIT_LIST_HEAD(&buf_ptr1
->list
);
3316 list_add_tail(&buf_ptr1
->list
,
3320 INIT_LIST_HEAD(&buf_ptr
->list
);
3321 list_add_tail(&buf_ptr
->list
, &phba
->elsbuf
);
3323 spin_unlock_irq(&phba
->hbalock
);
3326 buf_ptr1
= (struct lpfc_dmabuf
*) elsiocb
->context2
;
3327 lpfc_els_free_data(phba
, buf_ptr1
);
3331 if (elsiocb
->context3
) {
3332 buf_ptr
= (struct lpfc_dmabuf
*) elsiocb
->context3
;
3333 lpfc_els_free_bpl(phba
, buf_ptr
);
3335 lpfc_sli_release_iocbq(phba
, elsiocb
);
3340 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3341 * @phba: pointer to lpfc hba data structure.
3342 * @cmdiocb: pointer to lpfc command iocb data structure.
3343 * @rspiocb: pointer to lpfc response iocb data structure.
3345 * This routine is the completion callback function to the Logout (LOGO)
3346 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3347 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3348 * release the ndlp if it has the last reference remaining (reference count
3349 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3350 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3351 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3352 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3353 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3354 * IOCB data structure.
3357 lpfc_cmpl_els_logo_acc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3358 struct lpfc_iocbq
*rspiocb
)
3360 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3361 struct lpfc_vport
*vport
= cmdiocb
->vport
;
3364 irsp
= &rspiocb
->iocb
;
3365 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3366 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3367 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], ndlp
->nlp_DID
);
3368 /* ACC to LOGO completes to NPort <nlp_DID> */
3369 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3370 "0109 ACC to LOGO completes to NPort x%x "
3371 "Data: x%x x%x x%x\n",
3372 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3375 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
) {
3376 /* NPort Recovery mode or node is just allocated */
3377 if (!lpfc_nlp_not_used(ndlp
)) {
3378 /* If the ndlp is being used by another discovery
3379 * thread, just unregister the RPI.
3381 lpfc_unreg_rpi(vport
, ndlp
);
3383 /* Indicate the node has already released, should
3384 * not reference to it from within lpfc_els_free_iocb.
3386 cmdiocb
->context1
= NULL
;
3389 lpfc_els_free_iocb(phba
, cmdiocb
);
3394 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3395 * @phba: pointer to lpfc hba data structure.
3396 * @pmb: pointer to the driver internal queue element for mailbox command.
3398 * This routine is the completion callback function for unregister default
3399 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3400 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3401 * decrements the ndlp reference count held for this completion callback
3402 * function. After that, it invokes the lpfc_nlp_not_used() to check
3403 * whether there is only one reference left on the ndlp. If so, it will
3404 * perform one more decrement and trigger the release of the ndlp.
3407 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3409 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3410 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3412 pmb
->context1
= NULL
;
3413 pmb
->context2
= NULL
;
3415 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3417 mempool_free(pmb
, phba
->mbox_mem_pool
);
3418 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3420 /* This is the end of the default RPI cleanup logic for this
3421 * ndlp. If no other discovery threads are using this ndlp.
3422 * we should free all resources associated with it.
3424 lpfc_nlp_not_used(ndlp
);
3431 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3432 * @phba: pointer to lpfc hba data structure.
3433 * @cmdiocb: pointer to lpfc command iocb data structure.
3434 * @rspiocb: pointer to lpfc response iocb data structure.
3436 * This routine is the completion callback function for ELS Response IOCB
3437 * command. In normal case, this callback function just properly sets the
3438 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3439 * field in the command IOCB is not NULL, the referred mailbox command will
3440 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3441 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3442 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3443 * routine shall be invoked trying to release the ndlp if no other threads
3444 * are currently referring it.
3447 lpfc_cmpl_els_rsp(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
3448 struct lpfc_iocbq
*rspiocb
)
3450 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
3451 struct lpfc_vport
*vport
= ndlp
? ndlp
->vport
: NULL
;
3452 struct Scsi_Host
*shost
= vport
? lpfc_shost_from_vport(vport
) : NULL
;
3455 LPFC_MBOXQ_t
*mbox
= NULL
;
3456 struct lpfc_dmabuf
*mp
= NULL
;
3457 uint32_t ls_rjt
= 0;
3459 irsp
= &rspiocb
->iocb
;
3461 if (cmdiocb
->context_un
.mbox
)
3462 mbox
= cmdiocb
->context_un
.mbox
;
3464 /* First determine if this is a LS_RJT cmpl. Note, this callback
3465 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3467 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
3468 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3469 (*((uint32_t *) (pcmd
)) == ELS_CMD_LS_RJT
)) {
3470 /* A LS_RJT associated with Default RPI cleanup has its own
3471 * separate code path.
3473 if (!(ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3477 /* Check to see if link went down during discovery */
3478 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
) || lpfc_els_chk_latt(vport
)) {
3480 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3482 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3485 mempool_free(mbox
, phba
->mbox_mem_pool
);
3487 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
) &&
3488 (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
))
3489 if (lpfc_nlp_not_used(ndlp
)) {
3491 /* Indicate the node has already released,
3492 * should not reference to it from within
3493 * the routine lpfc_els_free_iocb.
3495 cmdiocb
->context1
= NULL
;
3500 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3501 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3502 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
3503 cmdiocb
->iocb
.un
.elsreq64
.remoteID
);
3504 /* ELS response tag <ulpIoTag> completes */
3505 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3506 "0110 ELS response tag x%x completes "
3507 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3508 cmdiocb
->iocb
.ulpIoTag
, rspiocb
->iocb
.ulpStatus
,
3509 rspiocb
->iocb
.un
.ulpWord
[4], rspiocb
->iocb
.ulpTimeout
,
3510 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3513 if ((rspiocb
->iocb
.ulpStatus
== 0)
3514 && (ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
)) {
3515 lpfc_unreg_rpi(vport
, ndlp
);
3516 /* Increment reference count to ndlp to hold the
3517 * reference to ndlp for the callback function.
3519 mbox
->context2
= lpfc_nlp_get(ndlp
);
3520 mbox
->vport
= vport
;
3521 if (ndlp
->nlp_flag
& NLP_RM_DFLT_RPI
) {
3522 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
3523 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
3526 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_login
;
3527 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
3528 lpfc_nlp_set_state(vport
, ndlp
,
3529 NLP_STE_REG_LOGIN_ISSUE
);
3531 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
3532 != MBX_NOT_FINISHED
)
3535 /* Decrement the ndlp reference count we
3536 * set for this failed mailbox command.
3540 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3541 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3542 "0138 ELS rsp: Cannot issue reg_login for x%x "
3543 "Data: x%x x%x x%x\n",
3544 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3547 if (lpfc_nlp_not_used(ndlp
)) {
3549 /* Indicate node has already been released,
3550 * should not reference to it from within
3551 * the routine lpfc_els_free_iocb.
3553 cmdiocb
->context1
= NULL
;
3556 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3557 if (!lpfc_error_lost_link(irsp
) &&
3558 ndlp
->nlp_flag
& NLP_ACC_REGLOGIN
) {
3559 if (lpfc_nlp_not_used(ndlp
)) {
3561 /* Indicate node has already been
3562 * released, should not reference
3563 * to it from within the routine
3564 * lpfc_els_free_iocb.
3566 cmdiocb
->context1
= NULL
;
3570 mp
= (struct lpfc_dmabuf
*) mbox
->context1
;
3572 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3575 mempool_free(mbox
, phba
->mbox_mem_pool
);
3578 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)) {
3579 spin_lock_irq(shost
->host_lock
);
3580 ndlp
->nlp_flag
&= ~(NLP_ACC_REGLOGIN
| NLP_RM_DFLT_RPI
);
3581 spin_unlock_irq(shost
->host_lock
);
3583 /* If the node is not being used by another discovery thread,
3584 * and we are sending a reject, we are done with it.
3585 * Release driver reference count here and free associated
3589 if (lpfc_nlp_not_used(ndlp
))
3590 /* Indicate node has already been released,
3591 * should not reference to it from within
3592 * the routine lpfc_els_free_iocb.
3594 cmdiocb
->context1
= NULL
;
3597 lpfc_els_free_iocb(phba
, cmdiocb
);
3602 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3603 * @vport: pointer to a host virtual N_Port data structure.
3604 * @flag: the els command code to be accepted.
3605 * @oldiocb: pointer to the original lpfc command iocb data structure.
3606 * @ndlp: pointer to a node-list data structure.
3607 * @mbox: pointer to the driver internal queue element for mailbox command.
3609 * This routine prepares and issues an Accept (ACC) response IOCB
3610 * command. It uses the @flag to properly set up the IOCB field for the
3611 * specific ACC response command to be issued and invokes the
3612 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3613 * @mbox pointer is passed in, it will be put into the context_un.mbox
3614 * field of the IOCB for the completion callback function to issue the
3615 * mailbox command to the HBA later when callback is invoked.
3617 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3618 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3619 * will be stored into the context1 field of the IOCB for the completion
3620 * callback function to the corresponding response ELS IOCB command.
3623 * 0 - Successfully issued acc response
3624 * 1 - Failed to issue acc response
3627 lpfc_els_rsp_acc(struct lpfc_vport
*vport
, uint32_t flag
,
3628 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3631 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3632 struct lpfc_hba
*phba
= vport
->phba
;
3635 struct lpfc_iocbq
*elsiocb
;
3636 struct lpfc_sli
*psli
;
3640 ELS_PKT
*els_pkt_ptr
;
3643 oldcmd
= &oldiocb
->iocb
;
3647 cmdsize
= sizeof(uint32_t);
3648 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3649 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3651 spin_lock_irq(shost
->host_lock
);
3652 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3653 spin_unlock_irq(shost
->host_lock
);
3657 icmd
= &elsiocb
->iocb
;
3658 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3659 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3660 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3661 pcmd
+= sizeof(uint32_t);
3663 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3664 "Issue ACC: did:x%x flg:x%x",
3665 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3668 cmdsize
= (sizeof(struct serv_parm
) + sizeof(uint32_t));
3669 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3670 ndlp
, ndlp
->nlp_DID
, ELS_CMD_ACC
);
3674 icmd
= &elsiocb
->iocb
;
3675 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3676 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3679 elsiocb
->context_un
.mbox
= mbox
;
3681 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3682 pcmd
+= sizeof(uint32_t);
3683 memcpy(pcmd
, &vport
->fc_sparam
, sizeof(struct serv_parm
));
3685 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3686 "Issue ACC PLOGI: did:x%x flg:x%x",
3687 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3690 cmdsize
= sizeof(uint32_t) + sizeof(PRLO
);
3691 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
,
3692 ndlp
, ndlp
->nlp_DID
, ELS_CMD_PRLO
);
3696 icmd
= &elsiocb
->iocb
;
3697 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3698 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3700 memcpy(pcmd
, ((struct lpfc_dmabuf
*) oldiocb
->context2
)->virt
,
3701 sizeof(uint32_t) + sizeof(PRLO
));
3702 *((uint32_t *) (pcmd
)) = ELS_CMD_PRLO_ACC
;
3703 els_pkt_ptr
= (ELS_PKT
*) pcmd
;
3704 els_pkt_ptr
->un
.prlo
.acceptRspCode
= PRLO_REQ_EXECUTED
;
3706 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3707 "Issue ACC PRLO: did:x%x flg:x%x",
3708 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3713 /* Xmit ELS ACC response tag <ulpIoTag> */
3714 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3715 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
3716 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n",
3717 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
3718 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3720 if (ndlp
->nlp_flag
& NLP_LOGO_ACC
) {
3721 spin_lock_irq(shost
->host_lock
);
3722 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
3723 spin_unlock_irq(shost
->host_lock
);
3724 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_logo_acc
;
3726 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3729 phba
->fc_stat
.elsXmitACC
++;
3730 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3731 if (rc
== IOCB_ERROR
) {
3732 lpfc_els_free_iocb(phba
, elsiocb
);
3739 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
3740 * @vport: pointer to a virtual N_Port data structure.
3742 * @oldiocb: pointer to the original lpfc command iocb data structure.
3743 * @ndlp: pointer to a node-list data structure.
3744 * @mbox: pointer to the driver internal queue element for mailbox command.
3746 * This routine prepares and issue an Reject (RJT) response IOCB
3747 * command. If a @mbox pointer is passed in, it will be put into the
3748 * context_un.mbox field of the IOCB for the completion callback function
3749 * to issue to the HBA later.
3751 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3752 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3753 * will be stored into the context1 field of the IOCB for the completion
3754 * callback function to the reject response ELS IOCB command.
3757 * 0 - Successfully issued reject response
3758 * 1 - Failed to issue reject response
3761 lpfc_els_rsp_reject(struct lpfc_vport
*vport
, uint32_t rejectError
,
3762 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
,
3765 struct lpfc_hba
*phba
= vport
->phba
;
3768 struct lpfc_iocbq
*elsiocb
;
3769 struct lpfc_sli
*psli
;
3775 cmdsize
= 2 * sizeof(uint32_t);
3776 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
3777 ndlp
->nlp_DID
, ELS_CMD_LS_RJT
);
3781 icmd
= &elsiocb
->iocb
;
3782 oldcmd
= &oldiocb
->iocb
;
3783 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3784 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3786 *((uint32_t *) (pcmd
)) = ELS_CMD_LS_RJT
;
3787 pcmd
+= sizeof(uint32_t);
3788 *((uint32_t *) (pcmd
)) = rejectError
;
3791 elsiocb
->context_un
.mbox
= mbox
;
3793 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
3794 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3795 "0129 Xmit ELS RJT x%x response tag x%x "
3796 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
3798 rejectError
, elsiocb
->iotag
,
3799 elsiocb
->iocb
.ulpContext
, ndlp
->nlp_DID
,
3800 ndlp
->nlp_flag
, ndlp
->nlp_state
, ndlp
->nlp_rpi
);
3801 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3802 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
3803 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rejectError
);
3805 phba
->fc_stat
.elsXmitLSRJT
++;
3806 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3807 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3809 if (rc
== IOCB_ERROR
) {
3810 lpfc_els_free_iocb(phba
, elsiocb
);
3817 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
3818 * @vport: pointer to a virtual N_Port data structure.
3819 * @oldiocb: pointer to the original lpfc command iocb data structure.
3820 * @ndlp: pointer to a node-list data structure.
3822 * This routine prepares and issues an Accept (ACC) response to Address
3823 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
3824 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
3826 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3827 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3828 * will be stored into the context1 field of the IOCB for the completion
3829 * callback function to the ADISC Accept response ELS IOCB command.
3832 * 0 - Successfully issued acc adisc response
3833 * 1 - Failed to issue adisc acc response
3836 lpfc_els_rsp_adisc_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
3837 struct lpfc_nodelist
*ndlp
)
3839 struct lpfc_hba
*phba
= vport
->phba
;
3841 IOCB_t
*icmd
, *oldcmd
;
3842 struct lpfc_iocbq
*elsiocb
;
3847 cmdsize
= sizeof(uint32_t) + sizeof(ADISC
);
3848 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
3849 ndlp
->nlp_DID
, ELS_CMD_ACC
);
3853 icmd
= &elsiocb
->iocb
;
3854 oldcmd
= &oldiocb
->iocb
;
3855 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3857 /* Xmit ADISC ACC response tag <ulpIoTag> */
3858 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3859 "0130 Xmit ADISC ACC response iotag x%x xri: "
3860 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
3861 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
3862 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3864 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3866 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
3867 pcmd
+= sizeof(uint32_t);
3869 ap
= (ADISC
*) (pcmd
);
3870 ap
->hardAL_PA
= phba
->fc_pref_ALPA
;
3871 memcpy(&ap
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
3872 memcpy(&ap
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
3873 ap
->DID
= be32_to_cpu(vport
->fc_myDID
);
3875 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3876 "Issue ACC ADISC: did:x%x flg:x%x",
3877 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3879 phba
->fc_stat
.elsXmitACC
++;
3880 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3881 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3882 if (rc
== IOCB_ERROR
) {
3883 lpfc_els_free_iocb(phba
, elsiocb
);
3890 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
3891 * @vport: pointer to a virtual N_Port data structure.
3892 * @oldiocb: pointer to the original lpfc command iocb data structure.
3893 * @ndlp: pointer to a node-list data structure.
3895 * This routine prepares and issues an Accept (ACC) response to Process
3896 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
3897 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
3899 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3900 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3901 * will be stored into the context1 field of the IOCB for the completion
3902 * callback function to the PRLI Accept response ELS IOCB command.
3905 * 0 - Successfully issued acc prli response
3906 * 1 - Failed to issue acc prli response
3909 lpfc_els_rsp_prli_acc(struct lpfc_vport
*vport
, struct lpfc_iocbq
*oldiocb
,
3910 struct lpfc_nodelist
*ndlp
)
3912 struct lpfc_hba
*phba
= vport
->phba
;
3917 struct lpfc_iocbq
*elsiocb
;
3918 struct lpfc_sli
*psli
;
3925 cmdsize
= sizeof(uint32_t) + sizeof(PRLI
);
3926 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
3927 ndlp
->nlp_DID
, (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
)));
3931 icmd
= &elsiocb
->iocb
;
3932 oldcmd
= &oldiocb
->iocb
;
3933 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
3934 /* Xmit PRLI ACC response tag <ulpIoTag> */
3935 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
3936 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
3937 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
3938 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
3939 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
3941 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
3943 *((uint32_t *) (pcmd
)) = (ELS_CMD_ACC
| (ELS_CMD_PRLI
& ~ELS_RSP_MASK
));
3944 pcmd
+= sizeof(uint32_t);
3946 /* For PRLI, remainder of payload is PRLI parameter page */
3947 memset(pcmd
, 0, sizeof(PRLI
));
3949 npr
= (PRLI
*) pcmd
;
3952 * If the remote port is a target and our firmware version is 3.20 or
3953 * later, set the following bits for FC-TAPE support.
3955 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
3956 (vpd
->rev
.feaLevelHigh
>= 0x02)) {
3957 npr
->ConfmComplAllowed
= 1;
3959 npr
->TaskRetryIdReq
= 1;
3962 npr
->acceptRspCode
= PRLI_REQ_EXECUTED
;
3963 npr
->estabImagePair
= 1;
3964 npr
->readXferRdyDis
= 1;
3965 npr
->ConfmComplAllowed
= 1;
3967 npr
->prliType
= PRLI_FCP_TYPE
;
3968 npr
->initiatorFunc
= 1;
3970 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
3971 "Issue ACC PRLI: did:x%x flg:x%x",
3972 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
3974 phba
->fc_stat
.elsXmitACC
++;
3975 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
3977 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
3978 if (rc
== IOCB_ERROR
) {
3979 lpfc_els_free_iocb(phba
, elsiocb
);
3986 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
3987 * @vport: pointer to a virtual N_Port data structure.
3988 * @format: rnid command format.
3989 * @oldiocb: pointer to the original lpfc command iocb data structure.
3990 * @ndlp: pointer to a node-list data structure.
3992 * This routine issues a Request Node Identification Data (RNID) Accept
3993 * (ACC) response. It constructs the RNID ACC response command according to
3994 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
3995 * issue the response. Note that this command does not need to hold the ndlp
3996 * reference count for the callback. So, the ndlp reference count taken by
3997 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
3998 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
3999 * there is no ndlp reference available.
4001 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4002 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4003 * will be stored into the context1 field of the IOCB for the completion
4004 * callback function. However, for the RNID Accept Response ELS command,
4005 * this is undone later by this routine after the IOCB is allocated.
4008 * 0 - Successfully issued acc rnid response
4009 * 1 - Failed to issue acc rnid response
4012 lpfc_els_rsp_rnid_acc(struct lpfc_vport
*vport
, uint8_t format
,
4013 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4015 struct lpfc_hba
*phba
= vport
->phba
;
4017 IOCB_t
*icmd
, *oldcmd
;
4018 struct lpfc_iocbq
*elsiocb
;
4019 struct lpfc_sli
*psli
;
4025 cmdsize
= sizeof(uint32_t) + sizeof(uint32_t)
4026 + (2 * sizeof(struct lpfc_name
));
4028 cmdsize
+= sizeof(RNID_TOP_DISC
);
4030 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4031 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4035 icmd
= &elsiocb
->iocb
;
4036 oldcmd
= &oldiocb
->iocb
;
4037 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
4038 /* Xmit RNID ACC response tag <ulpIoTag> */
4039 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4040 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4041 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4042 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4043 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4044 pcmd
+= sizeof(uint32_t);
4046 memset(pcmd
, 0, sizeof(RNID
));
4047 rn
= (RNID
*) (pcmd
);
4048 rn
->Format
= format
;
4049 rn
->CommonLen
= (2 * sizeof(struct lpfc_name
));
4050 memcpy(&rn
->portName
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
4051 memcpy(&rn
->nodeName
, &vport
->fc_nodename
, sizeof(struct lpfc_name
));
4054 rn
->SpecificLen
= 0;
4056 case RNID_TOPOLOGY_DISC
:
4057 rn
->SpecificLen
= sizeof(RNID_TOP_DISC
);
4058 memcpy(&rn
->un
.topologyDisc
.portName
,
4059 &vport
->fc_portname
, sizeof(struct lpfc_name
));
4060 rn
->un
.topologyDisc
.unitType
= RNID_HBA
;
4061 rn
->un
.topologyDisc
.physPort
= 0;
4062 rn
->un
.topologyDisc
.attachedNodes
= 0;
4066 rn
->SpecificLen
= 0;
4070 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4071 "Issue ACC RNID: did:x%x flg:x%x",
4072 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4074 phba
->fc_stat
.elsXmitACC
++;
4075 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4077 elsiocb
->context1
= NULL
; /* Don't need ndlp for cmpl,
4078 * it could be freed */
4080 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4081 if (rc
== IOCB_ERROR
) {
4082 lpfc_els_free_iocb(phba
, elsiocb
);
4089 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4090 * @vport: pointer to a virtual N_Port data structure.
4091 * @iocb: pointer to the lpfc command iocb data structure.
4092 * @ndlp: pointer to a node-list data structure.
4097 lpfc_els_clear_rrq(struct lpfc_vport
*vport
,
4098 struct lpfc_iocbq
*iocb
, struct lpfc_nodelist
*ndlp
)
4100 struct lpfc_hba
*phba
= vport
->phba
;
4105 struct lpfc_node_rrq
*prrq
;
4108 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) iocb
->context2
)->virt
);
4109 pcmd
+= sizeof(uint32_t);
4110 rrq
= (struct RRQ
*)pcmd
;
4111 rrq
->rrq_exchg
= be32_to_cpu(rrq
->rrq_exchg
);
4112 rxid
= bf_get(rrq_rxid
, rrq
);
4114 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4115 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4117 be32_to_cpu(bf_get(rrq_did
, rrq
)),
4118 bf_get(rrq_oxid
, rrq
),
4120 iocb
->iotag
, iocb
->iocb
.ulpContext
);
4122 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4123 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4124 ndlp
->nlp_DID
, ndlp
->nlp_flag
, rrq
->rrq_exchg
);
4125 if (vport
->fc_myDID
== be32_to_cpu(bf_get(rrq_did
, rrq
)))
4126 xri
= bf_get(rrq_oxid
, rrq
);
4129 prrq
= lpfc_get_active_rrq(vport
, xri
, ndlp
->nlp_DID
);
4131 lpfc_clr_rrq_active(phba
, xri
, prrq
);
4136 * lpfc_els_rsp_echo_acc - Issue echo acc response
4137 * @vport: pointer to a virtual N_Port data structure.
4138 * @data: pointer to echo data to return in the accept.
4139 * @oldiocb: pointer to the original lpfc command iocb data structure.
4140 * @ndlp: pointer to a node-list data structure.
4143 * 0 - Successfully issued acc echo response
4144 * 1 - Failed to issue acc echo response
4147 lpfc_els_rsp_echo_acc(struct lpfc_vport
*vport
, uint8_t *data
,
4148 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
4150 struct lpfc_hba
*phba
= vport
->phba
;
4151 struct lpfc_iocbq
*elsiocb
;
4152 struct lpfc_sli
*psli
;
4158 cmdsize
= oldiocb
->iocb
.unsli3
.rcvsli3
.acc_len
;
4160 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
4161 ndlp
->nlp_DID
, ELS_CMD_ACC
);
4165 elsiocb
->iocb
.ulpContext
= oldiocb
->iocb
.ulpContext
; /* Xri */
4166 /* Xmit ECHO ACC response tag <ulpIoTag> */
4167 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
4168 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4169 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
);
4170 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
4171 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
4172 pcmd
+= sizeof(uint32_t);
4173 memcpy(pcmd
, data
, cmdsize
- sizeof(uint32_t));
4175 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_RSP
,
4176 "Issue ACC ECHO: did:x%x flg:x%x",
4177 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
4179 phba
->fc_stat
.elsXmitACC
++;
4180 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
4182 elsiocb
->context1
= NULL
; /* Don't need ndlp for cmpl,
4183 * it could be freed */
4185 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
4186 if (rc
== IOCB_ERROR
) {
4187 lpfc_els_free_iocb(phba
, elsiocb
);
4194 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4195 * @vport: pointer to a host virtual N_Port data structure.
4197 * This routine issues Address Discover (ADISC) ELS commands to those
4198 * N_Ports which are in node port recovery state and ADISC has not been issued
4199 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4200 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4201 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4202 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4203 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4204 * IOCBs quit for later pick up. On the other hand, after walking through
4205 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4206 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4207 * no more ADISC need to be sent.
4210 * The number of N_Ports with adisc issued.
4213 lpfc_els_disc_adisc(struct lpfc_vport
*vport
)
4215 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4216 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4219 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4220 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4221 if (!NLP_CHK_NODE_ACT(ndlp
))
4223 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4224 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4225 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) != 0) {
4226 spin_lock_irq(shost
->host_lock
);
4227 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4228 spin_unlock_irq(shost
->host_lock
);
4229 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4230 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_ADISC_ISSUE
);
4231 lpfc_issue_els_adisc(vport
, ndlp
, 0);
4233 vport
->num_disc_nodes
++;
4234 if (vport
->num_disc_nodes
>=
4235 vport
->cfg_discovery_threads
) {
4236 spin_lock_irq(shost
->host_lock
);
4237 vport
->fc_flag
|= FC_NLP_MORE
;
4238 spin_unlock_irq(shost
->host_lock
);
4243 if (sentadisc
== 0) {
4244 spin_lock_irq(shost
->host_lock
);
4245 vport
->fc_flag
&= ~FC_NLP_MORE
;
4246 spin_unlock_irq(shost
->host_lock
);
4252 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4253 * @vport: pointer to a host virtual N_Port data structure.
4255 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4256 * which are in node port recovery state, with a @vport. Each time an ELS
4257 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4258 * the per @vport number of discover count (num_disc_nodes) shall be
4259 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4260 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4261 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4262 * later pick up. On the other hand, after walking through all the ndlps with
4263 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4264 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4265 * PLOGI need to be sent.
4268 * The number of N_Ports with plogi issued.
4271 lpfc_els_disc_plogi(struct lpfc_vport
*vport
)
4273 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4274 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
4277 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4278 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4279 if (!NLP_CHK_NODE_ACT(ndlp
))
4281 if (ndlp
->nlp_state
== NLP_STE_NPR_NODE
&&
4282 (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) != 0 &&
4283 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) == 0 &&
4284 (ndlp
->nlp_flag
& NLP_NPR_ADISC
) == 0) {
4285 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4286 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4287 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
4289 vport
->num_disc_nodes
++;
4290 if (vport
->num_disc_nodes
>=
4291 vport
->cfg_discovery_threads
) {
4292 spin_lock_irq(shost
->host_lock
);
4293 vport
->fc_flag
|= FC_NLP_MORE
;
4294 spin_unlock_irq(shost
->host_lock
);
4300 lpfc_set_disctmo(vport
);
4303 spin_lock_irq(shost
->host_lock
);
4304 vport
->fc_flag
&= ~FC_NLP_MORE
;
4305 spin_unlock_irq(shost
->host_lock
);
4311 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
4312 * @vport: pointer to a host virtual N_Port data structure.
4314 * This routine cleans up any Registration State Change Notification
4315 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
4316 * @vport together with the host_lock is used to prevent multiple thread
4317 * trying to access the RSCN array on a same @vport at the same time.
4320 lpfc_els_flush_rscn(struct lpfc_vport
*vport
)
4322 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4323 struct lpfc_hba
*phba
= vport
->phba
;
4326 spin_lock_irq(shost
->host_lock
);
4327 if (vport
->fc_rscn_flush
) {
4328 /* Another thread is walking fc_rscn_id_list on this vport */
4329 spin_unlock_irq(shost
->host_lock
);
4332 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
4333 vport
->fc_rscn_flush
= 1;
4334 spin_unlock_irq(shost
->host_lock
);
4336 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4337 lpfc_in_buf_free(phba
, vport
->fc_rscn_id_list
[i
]);
4338 vport
->fc_rscn_id_list
[i
] = NULL
;
4340 spin_lock_irq(shost
->host_lock
);
4341 vport
->fc_rscn_id_cnt
= 0;
4342 vport
->fc_flag
&= ~(FC_RSCN_MODE
| FC_RSCN_DISCOVERY
);
4343 spin_unlock_irq(shost
->host_lock
);
4344 lpfc_can_disctmo(vport
);
4345 /* Indicate we are done walking this fc_rscn_id_list */
4346 vport
->fc_rscn_flush
= 0;
4350 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
4351 * @vport: pointer to a host virtual N_Port data structure.
4352 * @did: remote destination port identifier.
4354 * This routine checks whether there is any pending Registration State
4355 * Configuration Notification (RSCN) to a @did on @vport.
4358 * None zero - The @did matched with a pending rscn
4359 * 0 - not able to match @did with a pending rscn
4362 lpfc_rscn_payload_check(struct lpfc_vport
*vport
, uint32_t did
)
4367 uint32_t payload_len
, i
;
4368 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4370 ns_did
.un
.word
= did
;
4372 /* Never match fabric nodes for RSCNs */
4373 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
4376 /* If we are doing a FULL RSCN rediscovery, match everything */
4377 if (vport
->fc_flag
& FC_RSCN_DISCOVERY
)
4380 spin_lock_irq(shost
->host_lock
);
4381 if (vport
->fc_rscn_flush
) {
4382 /* Another thread is walking fc_rscn_id_list on this vport */
4383 spin_unlock_irq(shost
->host_lock
);
4386 /* Indicate we are walking fc_rscn_id_list on this vport */
4387 vport
->fc_rscn_flush
= 1;
4388 spin_unlock_irq(shost
->host_lock
);
4389 for (i
= 0; i
< vport
->fc_rscn_id_cnt
; i
++) {
4390 lp
= vport
->fc_rscn_id_list
[i
]->virt
;
4391 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4392 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4393 while (payload_len
) {
4394 rscn_did
.un
.word
= be32_to_cpu(*lp
++);
4395 payload_len
-= sizeof(uint32_t);
4396 switch (rscn_did
.un
.b
.resv
& RSCN_ADDRESS_FORMAT_MASK
) {
4397 case RSCN_ADDRESS_FORMAT_PORT
:
4398 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4399 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
)
4400 && (ns_did
.un
.b
.id
== rscn_did
.un
.b
.id
))
4401 goto return_did_out
;
4403 case RSCN_ADDRESS_FORMAT_AREA
:
4404 if ((ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4405 && (ns_did
.un
.b
.area
== rscn_did
.un
.b
.area
))
4406 goto return_did_out
;
4408 case RSCN_ADDRESS_FORMAT_DOMAIN
:
4409 if (ns_did
.un
.b
.domain
== rscn_did
.un
.b
.domain
)
4410 goto return_did_out
;
4412 case RSCN_ADDRESS_FORMAT_FABRIC
:
4413 goto return_did_out
;
4417 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4418 vport
->fc_rscn_flush
= 0;
4421 /* Indicate we are done with walking fc_rscn_id_list on this vport */
4422 vport
->fc_rscn_flush
= 0;
4427 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
4428 * @vport: pointer to a host virtual N_Port data structure.
4430 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
4431 * state machine for a @vport's nodes that are with pending RSCN (Registration
4432 * State Change Notification).
4435 * 0 - Successful (currently alway return 0)
4438 lpfc_rscn_recovery_check(struct lpfc_vport
*vport
)
4440 struct lpfc_nodelist
*ndlp
= NULL
;
4442 /* Move all affected nodes by pending RSCNs to NPR state. */
4443 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4444 if (!NLP_CHK_NODE_ACT(ndlp
) ||
4445 (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) ||
4446 !lpfc_rscn_payload_check(vport
, ndlp
->nlp_DID
))
4448 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
4449 NLP_EVT_DEVICE_RECOVERY
);
4450 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4456 * lpfc_send_rscn_event - Send an RSCN event to management application
4457 * @vport: pointer to a host virtual N_Port data structure.
4458 * @cmdiocb: pointer to lpfc command iocb data structure.
4460 * lpfc_send_rscn_event sends an RSCN netlink event to management
4464 lpfc_send_rscn_event(struct lpfc_vport
*vport
,
4465 struct lpfc_iocbq
*cmdiocb
)
4467 struct lpfc_dmabuf
*pcmd
;
4468 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4469 uint32_t *payload_ptr
;
4470 uint32_t payload_len
;
4471 struct lpfc_rscn_event_header
*rscn_event_data
;
4473 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4474 payload_ptr
= (uint32_t *) pcmd
->virt
;
4475 payload_len
= be32_to_cpu(*payload_ptr
& ~ELS_CMD_MASK
);
4477 rscn_event_data
= kmalloc(sizeof(struct lpfc_rscn_event_header
) +
4478 payload_len
, GFP_KERNEL
);
4479 if (!rscn_event_data
) {
4480 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
4481 "0147 Failed to allocate memory for RSCN event\n");
4484 rscn_event_data
->event_type
= FC_REG_RSCN_EVENT
;
4485 rscn_event_data
->payload_length
= payload_len
;
4486 memcpy(rscn_event_data
->rscn_payload
, payload_ptr
,
4489 fc_host_post_vendor_event(shost
,
4490 fc_get_event_number(),
4491 sizeof(struct lpfc_els_event_header
) + payload_len
,
4492 (char *)rscn_event_data
,
4495 kfree(rscn_event_data
);
4499 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
4500 * @vport: pointer to a host virtual N_Port data structure.
4501 * @cmdiocb: pointer to lpfc command iocb data structure.
4502 * @ndlp: pointer to a node-list data structure.
4504 * This routine processes an unsolicited RSCN (Registration State Change
4505 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
4506 * to invoke fc_host_post_event() routine to the FC transport layer. If the
4507 * discover state machine is about to begin discovery, it just accepts the
4508 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
4509 * contains N_Port IDs for other vports on this HBA, it just accepts the
4510 * RSCN and ignore processing it. If the state machine is in the recovery
4511 * state, the fc_rscn_id_list of this @vport is walked and the
4512 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
4513 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
4514 * routine is invoked to handle the RSCN event.
4517 * 0 - Just sent the acc response
4518 * 1 - Sent the acc response and waited for name server completion
4521 lpfc_els_rcv_rscn(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4522 struct lpfc_nodelist
*ndlp
)
4524 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4525 struct lpfc_hba
*phba
= vport
->phba
;
4526 struct lpfc_dmabuf
*pcmd
;
4527 uint32_t *lp
, *datap
;
4529 uint32_t payload_len
, length
, nportid
, *cmd
;
4531 int rscn_id
= 0, hba_id
= 0;
4534 icmd
= &cmdiocb
->iocb
;
4535 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4536 lp
= (uint32_t *) pcmd
->virt
;
4538 payload_len
= be32_to_cpu(*lp
++ & ~ELS_CMD_MASK
);
4539 payload_len
-= sizeof(uint32_t); /* take off word 0 */
4541 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4542 "0214 RSCN received Data: x%x x%x x%x x%x\n",
4543 vport
->fc_flag
, payload_len
, *lp
,
4544 vport
->fc_rscn_id_cnt
);
4546 /* Send an RSCN event to the management application */
4547 lpfc_send_rscn_event(vport
, cmdiocb
);
4549 for (i
= 0; i
< payload_len
/sizeof(uint32_t); i
++)
4550 fc_host_post_event(shost
, fc_get_event_number(),
4551 FCH_EVT_RSCN
, lp
[i
]);
4553 /* If we are about to begin discovery, just ACC the RSCN.
4554 * Discovery processing will satisfy it.
4556 if (vport
->port_state
<= LPFC_NS_QRY
) {
4557 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4558 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
4559 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4561 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4565 /* If this RSCN just contains NPortIDs for other vports on this HBA,
4566 * just ACC and ignore it.
4568 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
4569 !(vport
->cfg_peer_port_login
)) {
4574 nportid
= ((be32_to_cpu(nportid
)) & Mask_DID
);
4575 i
-= sizeof(uint32_t);
4577 if (lpfc_find_vport_by_did(phba
, nportid
))
4580 if (rscn_id
== hba_id
) {
4581 /* ALL NPortIDs in RSCN are on HBA */
4582 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4584 "Data: x%x x%x x%x x%x\n",
4585 vport
->fc_flag
, payload_len
,
4586 *lp
, vport
->fc_rscn_id_cnt
);
4587 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4588 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
4589 ndlp
->nlp_DID
, vport
->port_state
,
4592 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
,
4598 spin_lock_irq(shost
->host_lock
);
4599 if (vport
->fc_rscn_flush
) {
4600 /* Another thread is walking fc_rscn_id_list on this vport */
4601 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4602 spin_unlock_irq(shost
->host_lock
);
4604 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4607 /* Indicate we are walking fc_rscn_id_list on this vport */
4608 vport
->fc_rscn_flush
= 1;
4609 spin_unlock_irq(shost
->host_lock
);
4610 /* Get the array count after successfully have the token */
4611 rscn_cnt
= vport
->fc_rscn_id_cnt
;
4612 /* If we are already processing an RSCN, save the received
4613 * RSCN payload buffer, cmdiocb->context2 to process later.
4615 if (vport
->fc_flag
& (FC_RSCN_MODE
| FC_NDISC_ACTIVE
)) {
4616 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4617 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
4618 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4620 spin_lock_irq(shost
->host_lock
);
4621 vport
->fc_flag
|= FC_RSCN_DEFERRED
;
4622 if ((rscn_cnt
< FC_MAX_HOLD_RSCN
) &&
4623 !(vport
->fc_flag
& FC_RSCN_DISCOVERY
)) {
4624 vport
->fc_flag
|= FC_RSCN_MODE
;
4625 spin_unlock_irq(shost
->host_lock
);
4627 cmd
= vport
->fc_rscn_id_list
[rscn_cnt
-1]->virt
;
4628 length
= be32_to_cpu(*cmd
& ~ELS_CMD_MASK
);
4631 (payload_len
+ length
<= LPFC_BPL_SIZE
)) {
4632 *cmd
&= ELS_CMD_MASK
;
4633 *cmd
|= cpu_to_be32(payload_len
+ length
);
4634 memcpy(((uint8_t *)cmd
) + length
, lp
,
4637 vport
->fc_rscn_id_list
[rscn_cnt
] = pcmd
;
4638 vport
->fc_rscn_id_cnt
++;
4639 /* If we zero, cmdiocb->context2, the calling
4640 * routine will not try to free it.
4642 cmdiocb
->context2
= NULL
;
4645 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4646 "0235 Deferred RSCN "
4647 "Data: x%x x%x x%x\n",
4648 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4651 vport
->fc_flag
|= FC_RSCN_DISCOVERY
;
4652 spin_unlock_irq(shost
->host_lock
);
4653 /* ReDiscovery RSCN */
4654 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4655 "0234 ReDiscovery RSCN "
4656 "Data: x%x x%x x%x\n",
4657 vport
->fc_rscn_id_cnt
, vport
->fc_flag
,
4660 /* Indicate we are done walking fc_rscn_id_list on this vport */
4661 vport
->fc_rscn_flush
= 0;
4663 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4664 /* send RECOVERY event for ALL nodes that match RSCN payload */
4665 lpfc_rscn_recovery_check(vport
);
4666 spin_lock_irq(shost
->host_lock
);
4667 vport
->fc_flag
&= ~FC_RSCN_DEFERRED
;
4668 spin_unlock_irq(shost
->host_lock
);
4671 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
4672 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
4673 ndlp
->nlp_DID
, vport
->port_state
, ndlp
->nlp_flag
);
4675 spin_lock_irq(shost
->host_lock
);
4676 vport
->fc_flag
|= FC_RSCN_MODE
;
4677 spin_unlock_irq(shost
->host_lock
);
4678 vport
->fc_rscn_id_list
[vport
->fc_rscn_id_cnt
++] = pcmd
;
4679 /* Indicate we are done walking fc_rscn_id_list on this vport */
4680 vport
->fc_rscn_flush
= 0;
4682 * If we zero, cmdiocb->context2, the calling routine will
4683 * not try to free it.
4685 cmdiocb
->context2
= NULL
;
4686 lpfc_set_disctmo(vport
);
4688 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
4689 /* send RECOVERY event for ALL nodes that match RSCN payload */
4690 lpfc_rscn_recovery_check(vport
);
4691 return lpfc_els_handle_rscn(vport
);
4695 * lpfc_els_handle_rscn - Handle rscn for a vport
4696 * @vport: pointer to a host virtual N_Port data structure.
4698 * This routine handles the Registration State Configuration Notification
4699 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
4700 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
4701 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
4702 * NameServer shall be issued. If CT command to the NameServer fails to be
4703 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
4704 * RSCN activities with the @vport.
4707 * 0 - Cleaned up rscn on the @vport
4708 * 1 - Wait for plogi to name server before proceed
4711 lpfc_els_handle_rscn(struct lpfc_vport
*vport
)
4713 struct lpfc_nodelist
*ndlp
;
4714 struct lpfc_hba
*phba
= vport
->phba
;
4716 /* Ignore RSCN if the port is being torn down. */
4717 if (vport
->load_flag
& FC_UNLOADING
) {
4718 lpfc_els_flush_rscn(vport
);
4722 /* Start timer for RSCN processing */
4723 lpfc_set_disctmo(vport
);
4725 /* RSCN processed */
4726 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4727 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
4728 vport
->fc_flag
, 0, vport
->fc_rscn_id_cnt
,
4731 /* To process RSCN, first compare RSCN data with NameServer */
4732 vport
->fc_ns_retry
= 0;
4733 vport
->num_disc_nodes
= 0;
4735 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
4736 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
)
4737 && ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) {
4738 /* Good ndlp, issue CT Request to NameServer */
4739 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0) == 0)
4740 /* Wait for NameServer query cmpl before we can
4744 /* If login to NameServer does not exist, issue one */
4745 /* Good status, issue PLOGI to NameServer */
4746 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
4747 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
4748 /* Wait for NameServer login cmpl before we can
4753 ndlp
= lpfc_enable_node(vport
, ndlp
,
4754 NLP_STE_PLOGI_ISSUE
);
4756 lpfc_els_flush_rscn(vport
);
4759 ndlp
->nlp_prev_state
= NLP_STE_UNUSED_NODE
;
4761 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
4763 lpfc_els_flush_rscn(vport
);
4766 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
4767 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
4768 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
4770 ndlp
->nlp_type
|= NLP_FABRIC
;
4771 lpfc_issue_els_plogi(vport
, NameServer_DID
, 0);
4772 /* Wait for NameServer login cmpl before we can
4778 lpfc_els_flush_rscn(vport
);
4783 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
4784 * @vport: pointer to a host virtual N_Port data structure.
4785 * @cmdiocb: pointer to lpfc command iocb data structure.
4786 * @ndlp: pointer to a node-list data structure.
4788 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
4789 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
4790 * point topology. As an unsolicited FLOGI should not be received in a loop
4791 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
4792 * lpfc_check_sparm() routine is invoked to check the parameters in the
4793 * unsolicited FLOGI. If parameters validation failed, the routine
4794 * lpfc_els_rsp_reject() shall be called with reject reason code set to
4795 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
4796 * FLOGI shall be compared with the Port WWN of the @vport to determine who
4797 * will initiate PLOGI. The higher lexicographical value party shall has
4798 * higher priority (as the winning port) and will initiate PLOGI and
4799 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
4800 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
4801 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
4804 * 0 - Successfully processed the unsolicited flogi
4805 * 1 - Failed to process the unsolicited flogi
4808 lpfc_els_rcv_flogi(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4809 struct lpfc_nodelist
*ndlp
)
4811 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4812 struct lpfc_hba
*phba
= vport
->phba
;
4813 struct lpfc_dmabuf
*pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4814 uint32_t *lp
= (uint32_t *) pcmd
->virt
;
4815 IOCB_t
*icmd
= &cmdiocb
->iocb
;
4816 struct serv_parm
*sp
;
4823 sp
= (struct serv_parm
*) lp
;
4825 /* FLOGI received */
4827 lpfc_set_disctmo(vport
);
4829 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
4830 /* We should never receive a FLOGI in loop mode, ignore it */
4831 did
= icmd
->un
.elsreq64
.remoteID
;
4833 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
4835 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
4836 "0113 An FLOGI ELS command x%x was "
4837 "received from DID x%x in Loop Mode\n",
4844 if ((lpfc_check_sparm(vport
, ndlp
, sp
, CLASS3
, 1))) {
4845 /* For a FLOGI we accept, then if our portname is greater
4846 * then the remote portname we initiate Nport login.
4849 rc
= memcmp(&vport
->fc_portname
, &sp
->portName
,
4850 sizeof(struct lpfc_name
));
4853 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4857 lpfc_linkdown(phba
);
4858 lpfc_init_link(phba
, mbox
,
4860 phba
->cfg_link_speed
);
4861 mbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
4862 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4863 mbox
->vport
= vport
;
4864 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4865 lpfc_set_loopback_flag(phba
);
4866 if (rc
== MBX_NOT_FINISHED
) {
4867 mempool_free(mbox
, phba
->mbox_mem_pool
);
4870 } else if (rc
> 0) { /* greater than */
4871 spin_lock_irq(shost
->host_lock
);
4872 vport
->fc_flag
|= FC_PT2PT_PLOGI
;
4873 spin_unlock_irq(shost
->host_lock
);
4875 spin_lock_irq(shost
->host_lock
);
4876 vport
->fc_flag
|= FC_PT2PT
;
4877 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
4878 spin_unlock_irq(shost
->host_lock
);
4880 /* Reject this request because invalid parameters */
4881 stat
.un
.b
.lsRjtRsvd0
= 0;
4882 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
4883 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_SPARM_OPTIONS
;
4884 stat
.un
.b
.vendorUnique
= 0;
4885 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
4891 lpfc_els_rsp_acc(vport
, ELS_CMD_PLOGI
, cmdiocb
, ndlp
, NULL
);
4897 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
4898 * @vport: pointer to a host virtual N_Port data structure.
4899 * @cmdiocb: pointer to lpfc command iocb data structure.
4900 * @ndlp: pointer to a node-list data structure.
4902 * This routine processes Request Node Identification Data (RNID) IOCB
4903 * received as an ELS unsolicited event. Only when the RNID specified format
4904 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
4905 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
4906 * Accept (ACC) the RNID ELS command. All the other RNID formats are
4907 * rejected by invoking the lpfc_els_rsp_reject() routine.
4910 * 0 - Successfully processed rnid iocb (currently always return 0)
4913 lpfc_els_rcv_rnid(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4914 struct lpfc_nodelist
*ndlp
)
4916 struct lpfc_dmabuf
*pcmd
;
4923 icmd
= &cmdiocb
->iocb
;
4924 did
= icmd
->un
.elsreq64
.remoteID
;
4925 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
4926 lp
= (uint32_t *) pcmd
->virt
;
4933 switch (rn
->Format
) {
4935 case RNID_TOPOLOGY_DISC
:
4937 lpfc_els_rsp_rnid_acc(vport
, rn
->Format
, cmdiocb
, ndlp
);
4940 /* Reject this request because format not supported */
4941 stat
.un
.b
.lsRjtRsvd0
= 0;
4942 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
4943 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
4944 stat
.un
.b
.vendorUnique
= 0;
4945 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
4952 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
4953 * @vport: pointer to a host virtual N_Port data structure.
4954 * @cmdiocb: pointer to lpfc command iocb data structure.
4955 * @ndlp: pointer to a node-list data structure.
4958 * 0 - Successfully processed echo iocb (currently always return 0)
4961 lpfc_els_rcv_echo(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4962 struct lpfc_nodelist
*ndlp
)
4966 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) cmdiocb
->context2
)->virt
);
4968 /* skip over first word of echo command to find echo data */
4969 pcmd
+= sizeof(uint32_t);
4971 lpfc_els_rsp_echo_acc(vport
, pcmd
, cmdiocb
, ndlp
);
4976 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
4977 * @vport: pointer to a host virtual N_Port data structure.
4978 * @cmdiocb: pointer to lpfc command iocb data structure.
4979 * @ndlp: pointer to a node-list data structure.
4981 * This routine processes a Link Incident Report Registration(LIRR) IOCB
4982 * received as an ELS unsolicited event. Currently, this function just invokes
4983 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
4986 * 0 - Successfully processed lirr iocb (currently always return 0)
4989 lpfc_els_rcv_lirr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
4990 struct lpfc_nodelist
*ndlp
)
4994 /* For now, unconditionally reject this command */
4995 stat
.un
.b
.lsRjtRsvd0
= 0;
4996 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
4997 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
4998 stat
.un
.b
.vendorUnique
= 0;
4999 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5004 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5005 * @vport: pointer to a host virtual N_Port data structure.
5006 * @cmdiocb: pointer to lpfc command iocb data structure.
5007 * @ndlp: pointer to a node-list data structure.
5009 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5010 * received as an ELS unsolicited event. A request to RRQ shall only
5011 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5012 * Nx_Port N_Port_ID of the target Exchange is the same as the
5013 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5014 * not accepted, an LS_RJT with reason code "Unable to perform
5015 * command request" and reason code explanation "Invalid Originator
5016 * S_ID" shall be returned. For now, we just unconditionally accept
5017 * RRQ from the target.
5020 lpfc_els_rcv_rrq(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5021 struct lpfc_nodelist
*ndlp
)
5023 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5024 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
5025 lpfc_els_clear_rrq(vport
, cmdiocb
, ndlp
);
5029 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5030 * @phba: pointer to lpfc hba data structure.
5031 * @pmb: pointer to the driver internal queue element for mailbox command.
5033 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5034 * mailbox command. This callback function is to actually send the Accept
5035 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5036 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5037 * mailbox command, constructs the RPS response with the link statistics
5038 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5039 * response to the RPS.
5041 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5042 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5043 * will be stored into the context1 field of the IOCB for the completion
5044 * callback function to the RPS Accept Response ELS IOCB command.
5048 lpfc_els_rsp_rls_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5052 struct RLS_RSP
*rls_rsp
;
5054 struct lpfc_iocbq
*elsiocb
;
5055 struct lpfc_nodelist
*ndlp
;
5061 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5062 xri
= (uint16_t) ((unsigned long)(pmb
->context1
));
5063 pmb
->context1
= NULL
;
5064 pmb
->context2
= NULL
;
5066 if (mb
->mbxStatus
) {
5067 mempool_free(pmb
, phba
->mbox_mem_pool
);
5071 cmdsize
= sizeof(struct RLS_RSP
) + sizeof(uint32_t);
5072 mempool_free(pmb
, phba
->mbox_mem_pool
);
5073 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5074 lpfc_max_els_tries
, ndlp
,
5075 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5077 /* Decrement the ndlp reference count from previous mbox command */
5083 icmd
= &elsiocb
->iocb
;
5084 icmd
->ulpContext
= xri
;
5086 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5087 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5088 pcmd
+= sizeof(uint32_t); /* Skip past command */
5089 rls_rsp
= (struct RLS_RSP
*)pcmd
;
5091 rls_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5092 rls_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5093 rls_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5094 rls_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5095 rls_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5096 rls_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5098 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5099 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5100 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
5101 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5102 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5103 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5105 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5106 phba
->fc_stat
.elsXmitACC
++;
5107 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5108 lpfc_els_free_iocb(phba
, elsiocb
);
5112 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
5113 * @phba: pointer to lpfc hba data structure.
5114 * @pmb: pointer to the driver internal queue element for mailbox command.
5116 * This routine is the completion callback function for the MBX_READ_LNK_STAT
5117 * mailbox command. This callback function is to actually send the Accept
5118 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
5119 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
5120 * mailbox command, constructs the RPS response with the link statistics
5121 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
5122 * response to the RPS.
5124 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5125 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5126 * will be stored into the context1 field of the IOCB for the completion
5127 * callback function to the RPS Accept Response ELS IOCB command.
5131 lpfc_els_rsp_rps_acc(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5137 struct lpfc_iocbq
*elsiocb
;
5138 struct lpfc_nodelist
*ndlp
;
5139 uint16_t xri
, status
;
5144 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5145 xri
= (uint16_t) ((unsigned long)(pmb
->context1
));
5146 pmb
->context1
= NULL
;
5147 pmb
->context2
= NULL
;
5149 if (mb
->mbxStatus
) {
5150 mempool_free(pmb
, phba
->mbox_mem_pool
);
5154 cmdsize
= sizeof(RPS_RSP
) + sizeof(uint32_t);
5155 mempool_free(pmb
, phba
->mbox_mem_pool
);
5156 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5157 lpfc_max_els_tries
, ndlp
,
5158 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5160 /* Decrement the ndlp reference count from previous mbox command */
5166 icmd
= &elsiocb
->iocb
;
5167 icmd
->ulpContext
= xri
;
5169 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5170 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5171 pcmd
+= sizeof(uint32_t); /* Skip past command */
5172 rps_rsp
= (RPS_RSP
*)pcmd
;
5174 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5178 if (phba
->pport
->fc_flag
& FC_FABRIC
)
5182 rps_rsp
->portStatus
= cpu_to_be16(status
);
5183 rps_rsp
->linkFailureCnt
= cpu_to_be32(mb
->un
.varRdLnk
.linkFailureCnt
);
5184 rps_rsp
->lossSyncCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSyncCnt
);
5185 rps_rsp
->lossSignalCnt
= cpu_to_be32(mb
->un
.varRdLnk
.lossSignalCnt
);
5186 rps_rsp
->primSeqErrCnt
= cpu_to_be32(mb
->un
.varRdLnk
.primSeqErrCnt
);
5187 rps_rsp
->invalidXmitWord
= cpu_to_be32(mb
->un
.varRdLnk
.invalidXmitWord
);
5188 rps_rsp
->crcCnt
= cpu_to_be32(mb
->un
.varRdLnk
.crcCnt
);
5189 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
5190 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5191 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
5192 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5193 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5194 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5196 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5197 phba
->fc_stat
.elsXmitACC
++;
5198 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5199 lpfc_els_free_iocb(phba
, elsiocb
);
5204 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
5205 * @vport: pointer to a host virtual N_Port data structure.
5206 * @cmdiocb: pointer to lpfc command iocb data structure.
5207 * @ndlp: pointer to a node-list data structure.
5209 * This routine processes Read Port Status (RPL) IOCB received as an
5210 * ELS unsolicited event. It first checks the remote port state. If the
5211 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5212 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5213 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5214 * for reading the HBA link statistics. It is for the callback function,
5215 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
5216 * to actually sending out RPL Accept (ACC) response.
5219 * 0 - Successfully processed rls iocb (currently always return 0)
5222 lpfc_els_rcv_rls(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5223 struct lpfc_nodelist
*ndlp
)
5225 struct lpfc_hba
*phba
= vport
->phba
;
5227 struct lpfc_dmabuf
*pcmd
;
5230 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5231 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5232 /* reject the unsolicited RPS request and done with it */
5235 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5237 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5239 lpfc_read_lnk_stat(phba
, mbox
);
5241 (void *)((unsigned long) cmdiocb
->iocb
.ulpContext
);
5242 mbox
->context2
= lpfc_nlp_get(ndlp
);
5243 mbox
->vport
= vport
;
5244 mbox
->mbox_cmpl
= lpfc_els_rsp_rls_acc
;
5245 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5246 != MBX_NOT_FINISHED
)
5247 /* Mbox completion will send ELS Response */
5249 /* Decrement reference count used for the failed mbox
5253 mempool_free(mbox
, phba
->mbox_mem_pool
);
5256 /* issue rejection response */
5257 stat
.un
.b
.lsRjtRsvd0
= 0;
5258 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5259 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5260 stat
.un
.b
.vendorUnique
= 0;
5261 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5266 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
5267 * @vport: pointer to a host virtual N_Port data structure.
5268 * @cmdiocb: pointer to lpfc command iocb data structure.
5269 * @ndlp: pointer to a node-list data structure.
5271 * This routine processes Read Timout Value (RTV) IOCB received as an
5272 * ELS unsolicited event. It first checks the remote port state. If the
5273 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5274 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
5275 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
5276 * Value (RTV) unsolicited IOCB event.
5278 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5279 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5280 * will be stored into the context1 field of the IOCB for the completion
5281 * callback function to the RPS Accept Response ELS IOCB command.
5284 * 0 - Successfully processed rtv iocb (currently always return 0)
5287 lpfc_els_rcv_rtv(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5288 struct lpfc_nodelist
*ndlp
)
5290 struct lpfc_hba
*phba
= vport
->phba
;
5292 struct RTV_RSP
*rtv_rsp
;
5294 struct lpfc_iocbq
*elsiocb
;
5298 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5299 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5300 /* reject the unsolicited RPS request and done with it */
5303 cmdsize
= sizeof(struct RTV_RSP
) + sizeof(uint32_t);
5304 elsiocb
= lpfc_prep_els_iocb(phba
->pport
, 0, cmdsize
,
5305 lpfc_max_els_tries
, ndlp
,
5306 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5311 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5312 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5313 pcmd
+= sizeof(uint32_t); /* Skip past command */
5315 /* use the command's xri in the response */
5316 elsiocb
->iocb
.ulpContext
= cmdiocb
->iocb
.ulpContext
;
5318 rtv_rsp
= (struct RTV_RSP
*)pcmd
;
5320 /* populate RTV payload */
5321 rtv_rsp
->ratov
= cpu_to_be32(phba
->fc_ratov
* 1000); /* report msecs */
5322 rtv_rsp
->edtov
= cpu_to_be32(phba
->fc_edtov
);
5323 bf_set(qtov_edtovres
, rtv_rsp
, phba
->fc_edtovResol
? 1 : 0);
5324 bf_set(qtov_rttov
, rtv_rsp
, 0); /* Field is for FC ONLY */
5325 rtv_rsp
->qtov
= cpu_to_be32(rtv_rsp
->qtov
);
5327 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
5328 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_ELS
,
5329 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
5330 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
5331 "Data: x%x x%x x%x\n",
5332 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5333 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5335 rtv_rsp
->ratov
, rtv_rsp
->edtov
, rtv_rsp
->qtov
);
5336 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5337 phba
->fc_stat
.elsXmitACC
++;
5338 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) == IOCB_ERROR
)
5339 lpfc_els_free_iocb(phba
, elsiocb
);
5343 /* issue rejection response */
5344 stat
.un
.b
.lsRjtRsvd0
= 0;
5345 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5346 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5347 stat
.un
.b
.vendorUnique
= 0;
5348 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5352 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
5353 * @vport: pointer to a host virtual N_Port data structure.
5354 * @cmdiocb: pointer to lpfc command iocb data structure.
5355 * @ndlp: pointer to a node-list data structure.
5357 * This routine processes Read Port Status (RPS) IOCB received as an
5358 * ELS unsolicited event. It first checks the remote port state. If the
5359 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
5360 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
5361 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
5362 * for reading the HBA link statistics. It is for the callback function,
5363 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
5364 * to actually sending out RPS Accept (ACC) response.
5367 * 0 - Successfully processed rps iocb (currently always return 0)
5370 lpfc_els_rcv_rps(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5371 struct lpfc_nodelist
*ndlp
)
5373 struct lpfc_hba
*phba
= vport
->phba
;
5377 struct lpfc_dmabuf
*pcmd
;
5381 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5382 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
))
5383 /* reject the unsolicited RPS request and done with it */
5386 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5387 lp
= (uint32_t *) pcmd
->virt
;
5388 flag
= (be32_to_cpu(*lp
++) & 0xf);
5392 ((flag
== 1) && (be32_to_cpu(rps
->un
.portNum
) == 0)) ||
5393 ((flag
== 2) && (memcmp(&rps
->un
.portName
, &vport
->fc_portname
,
5394 sizeof(struct lpfc_name
)) == 0))) {
5396 printk("Fix me....\n");
5398 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_ATOMIC
);
5400 lpfc_read_lnk_stat(phba
, mbox
);
5402 (void *)((unsigned long) cmdiocb
->iocb
.ulpContext
);
5403 mbox
->context2
= lpfc_nlp_get(ndlp
);
5404 mbox
->vport
= vport
;
5405 mbox
->mbox_cmpl
= lpfc_els_rsp_rps_acc
;
5406 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
5407 != MBX_NOT_FINISHED
)
5408 /* Mbox completion will send ELS Response */
5410 /* Decrement reference count used for the failed mbox
5414 mempool_free(mbox
, phba
->mbox_mem_pool
);
5419 /* issue rejection response */
5420 stat
.un
.b
.lsRjtRsvd0
= 0;
5421 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5422 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5423 stat
.un
.b
.vendorUnique
= 0;
5424 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
, NULL
);
5428 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
5429 * @vport: pointer to a host virtual N_Port data structure.
5430 * @ndlp: pointer to a node-list data structure.
5431 * @did: DID of the target.
5432 * @rrq: Pointer to the rrq struct.
5434 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
5435 * Successful the the completion handler will clear the RRQ.
5438 * 0 - Successfully sent rrq els iocb.
5439 * 1 - Failed to send rrq els iocb.
5442 lpfc_issue_els_rrq(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5443 uint32_t did
, struct lpfc_node_rrq
*rrq
)
5445 struct lpfc_hba
*phba
= vport
->phba
;
5446 struct RRQ
*els_rrq
;
5448 struct lpfc_iocbq
*elsiocb
;
5454 if (ndlp
!= rrq
->ndlp
)
5456 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
5459 /* If ndlp is not NULL, we will bump the reference count on it */
5460 cmdsize
= (sizeof(uint32_t) + sizeof(struct RRQ
));
5461 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, did
,
5466 icmd
= &elsiocb
->iocb
;
5467 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5469 /* For RRQ request, remainder of payload is Exchange IDs */
5470 *((uint32_t *) (pcmd
)) = ELS_CMD_RRQ
;
5471 pcmd
+= sizeof(uint32_t);
5472 els_rrq
= (struct RRQ
*) pcmd
;
5474 bf_set(rrq_oxid
, els_rrq
, rrq
->xritag
);
5475 bf_set(rrq_rxid
, els_rrq
, rrq
->rxid
);
5476 bf_set(rrq_did
, els_rrq
, vport
->fc_myDID
);
5477 els_rrq
->rrq
= cpu_to_be32(els_rrq
->rrq
);
5478 els_rrq
->rrq_exchg
= cpu_to_be32(els_rrq
->rrq_exchg
);
5481 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5482 "Issue RRQ: did:x%x",
5483 did
, rrq
->xritag
, rrq
->rxid
);
5484 elsiocb
->context_un
.rrq
= rrq
;
5485 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rrq
;
5486 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0);
5488 if (ret
== IOCB_ERROR
) {
5489 lpfc_els_free_iocb(phba
, elsiocb
);
5496 * lpfc_send_rrq - Sends ELS RRQ if needed.
5497 * @phba: pointer to lpfc hba data structure.
5498 * @rrq: pointer to the active rrq.
5500 * This routine will call the lpfc_issue_els_rrq if the rrq is
5501 * still active for the xri. If this function returns a failure then
5502 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
5504 * Returns 0 Success.
5508 lpfc_send_rrq(struct lpfc_hba
*phba
, struct lpfc_node_rrq
*rrq
)
5510 struct lpfc_nodelist
*ndlp
= lpfc_findnode_did(rrq
->vport
,
5512 if (lpfc_test_rrq_active(phba
, ndlp
, rrq
->xritag
))
5513 return lpfc_issue_els_rrq(rrq
->vport
, ndlp
,
5520 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
5521 * @vport: pointer to a host virtual N_Port data structure.
5522 * @cmdsize: size of the ELS command.
5523 * @oldiocb: pointer to the original lpfc command iocb data structure.
5524 * @ndlp: pointer to a node-list data structure.
5526 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
5527 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
5529 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5530 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5531 * will be stored into the context1 field of the IOCB for the completion
5532 * callback function to the RPL Accept Response ELS command.
5535 * 0 - Successfully issued ACC RPL ELS command
5536 * 1 - Failed to issue ACC RPL ELS command
5539 lpfc_els_rsp_rpl_acc(struct lpfc_vport
*vport
, uint16_t cmdsize
,
5540 struct lpfc_iocbq
*oldiocb
, struct lpfc_nodelist
*ndlp
)
5542 struct lpfc_hba
*phba
= vport
->phba
;
5543 IOCB_t
*icmd
, *oldcmd
;
5545 struct lpfc_iocbq
*elsiocb
;
5548 elsiocb
= lpfc_prep_els_iocb(vport
, 0, cmdsize
, oldiocb
->retry
, ndlp
,
5549 ndlp
->nlp_DID
, ELS_CMD_ACC
);
5554 icmd
= &elsiocb
->iocb
;
5555 oldcmd
= &oldiocb
->iocb
;
5556 icmd
->ulpContext
= oldcmd
->ulpContext
; /* Xri */
5558 pcmd
= (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
5559 *((uint32_t *) (pcmd
)) = ELS_CMD_ACC
;
5560 pcmd
+= sizeof(uint16_t);
5561 *((uint16_t *)(pcmd
)) = be16_to_cpu(cmdsize
);
5562 pcmd
+= sizeof(uint16_t);
5564 /* Setup the RPL ACC payload */
5565 rpl_rsp
.listLen
= be32_to_cpu(1);
5567 rpl_rsp
.port_num_blk
.portNum
= 0;
5568 rpl_rsp
.port_num_blk
.portID
= be32_to_cpu(vport
->fc_myDID
);
5569 memcpy(&rpl_rsp
.port_num_blk
.portName
, &vport
->fc_portname
,
5570 sizeof(struct lpfc_name
));
5571 memcpy(pcmd
, &rpl_rsp
, cmdsize
- sizeof(uint32_t));
5572 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
5573 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5574 "0120 Xmit ELS RPL ACC response tag x%x "
5575 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
5577 elsiocb
->iotag
, elsiocb
->iocb
.ulpContext
,
5578 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_state
,
5580 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_rsp
;
5581 phba
->fc_stat
.elsXmitACC
++;
5582 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
5584 lpfc_els_free_iocb(phba
, elsiocb
);
5591 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
5592 * @vport: pointer to a host virtual N_Port data structure.
5593 * @cmdiocb: pointer to lpfc command iocb data structure.
5594 * @ndlp: pointer to a node-list data structure.
5596 * This routine processes Read Port List (RPL) IOCB received as an ELS
5597 * unsolicited event. It first checks the remote port state. If the remote
5598 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
5599 * invokes the lpfc_els_rsp_reject() routine to send reject response.
5600 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
5601 * to accept the RPL.
5604 * 0 - Successfully processed rpl iocb (currently always return 0)
5607 lpfc_els_rcv_rpl(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5608 struct lpfc_nodelist
*ndlp
)
5610 struct lpfc_dmabuf
*pcmd
;
5617 if ((ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
5618 (ndlp
->nlp_state
!= NLP_STE_MAPPED_NODE
)) {
5619 /* issue rejection response */
5620 stat
.un
.b
.lsRjtRsvd0
= 0;
5621 stat
.un
.b
.lsRjtRsnCode
= LSRJT_UNABLE_TPC
;
5622 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_CANT_GIVE_DATA
;
5623 stat
.un
.b
.vendorUnique
= 0;
5624 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, cmdiocb
, ndlp
,
5626 /* rejected the unsolicited RPL request and done with it */
5630 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5631 lp
= (uint32_t *) pcmd
->virt
;
5632 rpl
= (RPL
*) (lp
+ 1);
5633 maxsize
= be32_to_cpu(rpl
->maxsize
);
5635 /* We support only one port */
5636 if ((rpl
->index
== 0) &&
5638 ((maxsize
* sizeof(uint32_t)) >= sizeof(RPL_RSP
)))) {
5639 cmdsize
= sizeof(uint32_t) + sizeof(RPL_RSP
);
5641 cmdsize
= sizeof(uint32_t) + maxsize
* sizeof(uint32_t);
5643 lpfc_els_rsp_rpl_acc(vport
, cmdsize
, cmdiocb
, ndlp
);
5649 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
5650 * @vport: pointer to a virtual N_Port data structure.
5651 * @cmdiocb: pointer to lpfc command iocb data structure.
5652 * @ndlp: pointer to a node-list data structure.
5654 * This routine processes Fibre Channel Address Resolution Protocol
5655 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
5656 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
5657 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
5658 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
5659 * remote PortName is compared against the FC PortName stored in the @vport
5660 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
5661 * compared against the FC NodeName stored in the @vport data structure.
5662 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
5663 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
5664 * invoked to send out FARP Response to the remote node. Before sending the
5665 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
5666 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
5667 * routine is invoked to log into the remote port first.
5670 * 0 - Either the FARP Match Mode not supported or successfully processed
5673 lpfc_els_rcv_farp(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5674 struct lpfc_nodelist
*ndlp
)
5676 struct lpfc_dmabuf
*pcmd
;
5680 uint32_t cmd
, cnt
, did
;
5682 icmd
= &cmdiocb
->iocb
;
5683 did
= icmd
->un
.elsreq64
.remoteID
;
5684 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5685 lp
= (uint32_t *) pcmd
->virt
;
5689 /* FARP-REQ received from DID <did> */
5690 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5691 "0601 FARP-REQ received from DID x%x\n", did
);
5692 /* We will only support match on WWPN or WWNN */
5693 if (fp
->Mflags
& ~(FARP_MATCH_NODE
| FARP_MATCH_PORT
)) {
5698 /* If this FARP command is searching for my portname */
5699 if (fp
->Mflags
& FARP_MATCH_PORT
) {
5700 if (memcmp(&fp
->RportName
, &vport
->fc_portname
,
5701 sizeof(struct lpfc_name
)) == 0)
5705 /* If this FARP command is searching for my nodename */
5706 if (fp
->Mflags
& FARP_MATCH_NODE
) {
5707 if (memcmp(&fp
->RnodeName
, &vport
->fc_nodename
,
5708 sizeof(struct lpfc_name
)) == 0)
5713 if ((ndlp
->nlp_state
== NLP_STE_UNMAPPED_NODE
) ||
5714 (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)) {
5715 /* Log back into the node before sending the FARP. */
5716 if (fp
->Rflags
& FARP_REQUEST_PLOGI
) {
5717 ndlp
->nlp_prev_state
= ndlp
->nlp_state
;
5718 lpfc_nlp_set_state(vport
, ndlp
,
5719 NLP_STE_PLOGI_ISSUE
);
5720 lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0);
5723 /* Send a FARP response to that node */
5724 if (fp
->Rflags
& FARP_REQUEST_FARPR
)
5725 lpfc_issue_els_farpr(vport
, did
, 0);
5732 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
5733 * @vport: pointer to a host virtual N_Port data structure.
5734 * @cmdiocb: pointer to lpfc command iocb data structure.
5735 * @ndlp: pointer to a node-list data structure.
5737 * This routine processes Fibre Channel Address Resolution Protocol
5738 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
5739 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
5740 * the FARP response request.
5743 * 0 - Successfully processed FARPR IOCB (currently always return 0)
5746 lpfc_els_rcv_farpr(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5747 struct lpfc_nodelist
*ndlp
)
5749 struct lpfc_dmabuf
*pcmd
;
5754 icmd
= &cmdiocb
->iocb
;
5755 did
= icmd
->un
.elsreq64
.remoteID
;
5756 pcmd
= (struct lpfc_dmabuf
*) cmdiocb
->context2
;
5757 lp
= (uint32_t *) pcmd
->virt
;
5760 /* FARP-RSP received from DID <did> */
5761 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
5762 "0600 FARP-RSP received from DID x%x\n", did
);
5763 /* ACCEPT the Farp resp request */
5764 lpfc_els_rsp_acc(vport
, ELS_CMD_ACC
, cmdiocb
, ndlp
, NULL
);
5770 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
5771 * @vport: pointer to a host virtual N_Port data structure.
5772 * @cmdiocb: pointer to lpfc command iocb data structure.
5773 * @fan_ndlp: pointer to a node-list data structure.
5775 * This routine processes a Fabric Address Notification (FAN) IOCB
5776 * command received as an ELS unsolicited event. The FAN ELS command will
5777 * only be processed on a physical port (i.e., the @vport represents the
5778 * physical port). The fabric NodeName and PortName from the FAN IOCB are
5779 * compared against those in the phba data structure. If any of those is
5780 * different, the lpfc_initial_flogi() routine is invoked to initialize
5781 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
5782 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
5783 * is invoked to register login to the fabric.
5786 * 0 - Successfully processed fan iocb (currently always return 0).
5789 lpfc_els_rcv_fan(struct lpfc_vport
*vport
, struct lpfc_iocbq
*cmdiocb
,
5790 struct lpfc_nodelist
*fan_ndlp
)
5792 struct lpfc_hba
*phba
= vport
->phba
;
5796 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
, "0265 FAN received\n");
5797 lp
= (uint32_t *)((struct lpfc_dmabuf
*)cmdiocb
->context2
)->virt
;
5799 /* FAN received; Fan does not have a reply sequence */
5800 if ((vport
== phba
->pport
) &&
5801 (vport
->port_state
== LPFC_LOCAL_CFG_LINK
)) {
5802 if ((memcmp(&phba
->fc_fabparam
.nodeName
, &fp
->FnodeName
,
5803 sizeof(struct lpfc_name
))) ||
5804 (memcmp(&phba
->fc_fabparam
.portName
, &fp
->FportName
,
5805 sizeof(struct lpfc_name
)))) {
5806 /* This port has switched fabrics. FLOGI is required */
5807 lpfc_issue_init_vfi(vport
);
5809 /* FAN verified - skip FLOGI */
5810 vport
->fc_myDID
= vport
->fc_prevDID
;
5811 if (phba
->sli_rev
< LPFC_SLI_REV4
)
5812 lpfc_issue_fabric_reglogin(vport
);
5814 lpfc_issue_reg_vfi(vport
);
5821 * lpfc_els_timeout - Handler funciton to the els timer
5822 * @ptr: holder for the timer function associated data.
5824 * This routine is invoked by the ELS timer after timeout. It posts the ELS
5825 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
5826 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
5827 * up the worker thread. It is for the worker thread to invoke the routine
5828 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
5831 lpfc_els_timeout(unsigned long ptr
)
5833 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
5834 struct lpfc_hba
*phba
= vport
->phba
;
5835 uint32_t tmo_posted
;
5836 unsigned long iflag
;
5838 spin_lock_irqsave(&vport
->work_port_lock
, iflag
);
5839 tmo_posted
= vport
->work_port_events
& WORKER_ELS_TMO
;
5841 vport
->work_port_events
|= WORKER_ELS_TMO
;
5842 spin_unlock_irqrestore(&vport
->work_port_lock
, iflag
);
5845 lpfc_worker_wake_up(phba
);
5851 * lpfc_els_timeout_handler - Process an els timeout event
5852 * @vport: pointer to a virtual N_Port data structure.
5854 * This routine is the actual handler function that processes an ELS timeout
5855 * event. It walks the ELS ring to get and abort all the IOCBs (except the
5856 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
5857 * invoking the lpfc_sli_issue_abort_iotag() routine.
5860 lpfc_els_timeout_handler(struct lpfc_vport
*vport
)
5862 struct lpfc_hba
*phba
= vport
->phba
;
5863 struct lpfc_sli_ring
*pring
;
5864 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
5866 struct lpfc_dmabuf
*pcmd
;
5867 uint32_t els_command
= 0;
5869 uint32_t remote_ID
= 0xffffffff;
5870 LIST_HEAD(txcmplq_completions
);
5871 LIST_HEAD(abort_list
);
5874 timeout
= (uint32_t)(phba
->fc_ratov
<< 1);
5876 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
5878 spin_lock_irq(&phba
->hbalock
);
5879 list_splice_init(&pring
->txcmplq
, &txcmplq_completions
);
5880 spin_unlock_irq(&phba
->hbalock
);
5882 list_for_each_entry_safe(piocb
, tmp_iocb
, &txcmplq_completions
, list
) {
5885 if ((piocb
->iocb_flag
& LPFC_IO_LIBDFC
) != 0 ||
5886 piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
5887 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
5890 if (piocb
->vport
!= vport
)
5893 pcmd
= (struct lpfc_dmabuf
*) piocb
->context2
;
5895 els_command
= *(uint32_t *) (pcmd
->virt
);
5897 if (els_command
== ELS_CMD_FARP
||
5898 els_command
== ELS_CMD_FARPR
||
5899 els_command
== ELS_CMD_FDISC
)
5902 if (piocb
->drvrTimeout
> 0) {
5903 if (piocb
->drvrTimeout
>= timeout
)
5904 piocb
->drvrTimeout
-= timeout
;
5906 piocb
->drvrTimeout
= 0;
5910 remote_ID
= 0xffffffff;
5911 if (cmd
->ulpCommand
!= CMD_GEN_REQUEST64_CR
)
5912 remote_ID
= cmd
->un
.elsreq64
.remoteID
;
5914 struct lpfc_nodelist
*ndlp
;
5915 ndlp
= __lpfc_findnode_rpi(vport
, cmd
->ulpContext
);
5916 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5917 remote_ID
= ndlp
->nlp_DID
;
5919 list_add_tail(&piocb
->dlist
, &abort_list
);
5921 spin_lock_irq(&phba
->hbalock
);
5922 list_splice(&txcmplq_completions
, &pring
->txcmplq
);
5923 spin_unlock_irq(&phba
->hbalock
);
5925 list_for_each_entry_safe(piocb
, tmp_iocb
, &abort_list
, dlist
) {
5926 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
5927 "0127 ELS timeout Data: x%x x%x x%x "
5928 "x%x\n", els_command
,
5929 remote_ID
, cmd
->ulpCommand
, cmd
->ulpIoTag
);
5930 spin_lock_irq(&phba
->hbalock
);
5931 list_del_init(&piocb
->dlist
);
5932 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
5933 spin_unlock_irq(&phba
->hbalock
);
5936 if (phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
)
5937 mod_timer(&vport
->els_tmofunc
, jiffies
+ HZ
* timeout
);
5941 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
5942 * @vport: pointer to a host virtual N_Port data structure.
5944 * This routine is used to clean up all the outstanding ELS commands on a
5945 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
5946 * routine. After that, it walks the ELS transmit queue to remove all the
5947 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
5948 * the IOCBs with a non-NULL completion callback function, the callback
5949 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
5950 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
5951 * callback function, the IOCB will simply be released. Finally, it walks
5952 * the ELS transmit completion queue to issue an abort IOCB to any transmit
5953 * completion queue IOCB that is associated with the @vport and is not
5954 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
5955 * part of the discovery state machine) out to HBA by invoking the
5956 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
5957 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
5958 * the IOCBs are aborted when this function returns.
5961 lpfc_els_flush_cmd(struct lpfc_vport
*vport
)
5963 LIST_HEAD(completions
);
5964 struct lpfc_hba
*phba
= vport
->phba
;
5965 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
5966 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
5969 lpfc_fabric_abort_vport(vport
);
5971 spin_lock_irq(&phba
->hbalock
);
5972 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
5975 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
5979 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
5980 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
5981 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
5982 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
5983 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
5986 if (piocb
->vport
!= vport
)
5989 list_move_tail(&piocb
->list
, &completions
);
5993 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
5994 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
) {
5998 if (piocb
->vport
!= vport
)
6001 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6003 spin_unlock_irq(&phba
->hbalock
);
6005 /* Cancell all the IOCBs from the completions list */
6006 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6013 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
6014 * @phba: pointer to lpfc hba data structure.
6016 * This routine is used to clean up all the outstanding ELS commands on a
6017 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
6018 * routine. After that, it walks the ELS transmit queue to remove all the
6019 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
6020 * the IOCBs with the completion callback function associated, the callback
6021 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6022 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
6023 * callback function associated, the IOCB will simply be released. Finally,
6024 * it walks the ELS transmit completion queue to issue an abort IOCB to any
6025 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
6026 * management plane IOCBs that are not part of the discovery state machine)
6027 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
6030 lpfc_els_flush_all_cmd(struct lpfc_hba
*phba
)
6032 LIST_HEAD(completions
);
6033 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6034 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
6037 lpfc_fabric_abort_hba(phba
);
6038 spin_lock_irq(&phba
->hbalock
);
6039 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txq
, list
) {
6041 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6043 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
6044 if (cmd
->ulpCommand
== CMD_QUE_RING_BUF_CN
||
6045 cmd
->ulpCommand
== CMD_QUE_RING_BUF64_CN
||
6046 cmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
6047 cmd
->ulpCommand
== CMD_ABORT_XRI_CN
)
6049 list_move_tail(&piocb
->list
, &completions
);
6052 list_for_each_entry_safe(piocb
, tmp_iocb
, &pring
->txcmplq
, list
) {
6053 if (piocb
->iocb_flag
& LPFC_IO_LIBDFC
)
6055 lpfc_sli_issue_abort_iotag(phba
, pring
, piocb
);
6057 spin_unlock_irq(&phba
->hbalock
);
6059 /* Cancel all the IOCBs from the completions list */
6060 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6067 * lpfc_send_els_failure_event - Posts an ELS command failure event
6068 * @phba: Pointer to hba context object.
6069 * @cmdiocbp: Pointer to command iocb which reported error.
6070 * @rspiocbp: Pointer to response iocb which reported error.
6072 * This function sends an event when there is an ELS command
6076 lpfc_send_els_failure_event(struct lpfc_hba
*phba
,
6077 struct lpfc_iocbq
*cmdiocbp
,
6078 struct lpfc_iocbq
*rspiocbp
)
6080 struct lpfc_vport
*vport
= cmdiocbp
->vport
;
6081 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6082 struct lpfc_lsrjt_event lsrjt_event
;
6083 struct lpfc_fabric_event_header fabric_event
;
6085 struct lpfc_nodelist
*ndlp
;
6088 ndlp
= cmdiocbp
->context1
;
6089 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
6092 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_LS_RJT
) {
6093 lsrjt_event
.header
.event_type
= FC_REG_ELS_EVENT
;
6094 lsrjt_event
.header
.subcategory
= LPFC_EVENT_LSRJT_RCV
;
6095 memcpy(lsrjt_event
.header
.wwpn
, &ndlp
->nlp_portname
,
6096 sizeof(struct lpfc_name
));
6097 memcpy(lsrjt_event
.header
.wwnn
, &ndlp
->nlp_nodename
,
6098 sizeof(struct lpfc_name
));
6099 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
6100 cmdiocbp
->context2
)->virt
);
6101 lsrjt_event
.command
= (pcmd
!= NULL
) ? *pcmd
: 0;
6102 stat
.un
.lsRjtError
= be32_to_cpu(rspiocbp
->iocb
.un
.ulpWord
[4]);
6103 lsrjt_event
.reason_code
= stat
.un
.b
.lsRjtRsnCode
;
6104 lsrjt_event
.explanation
= stat
.un
.b
.lsRjtRsnCodeExp
;
6105 fc_host_post_vendor_event(shost
,
6106 fc_get_event_number(),
6107 sizeof(lsrjt_event
),
6108 (char *)&lsrjt_event
,
6112 if ((rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
) ||
6113 (rspiocbp
->iocb
.ulpStatus
== IOSTAT_FABRIC_BSY
)) {
6114 fabric_event
.event_type
= FC_REG_FABRIC_EVENT
;
6115 if (rspiocbp
->iocb
.ulpStatus
== IOSTAT_NPORT_BSY
)
6116 fabric_event
.subcategory
= LPFC_EVENT_PORT_BUSY
;
6118 fabric_event
.subcategory
= LPFC_EVENT_FABRIC_BUSY
;
6119 memcpy(fabric_event
.wwpn
, &ndlp
->nlp_portname
,
6120 sizeof(struct lpfc_name
));
6121 memcpy(fabric_event
.wwnn
, &ndlp
->nlp_nodename
,
6122 sizeof(struct lpfc_name
));
6123 fc_host_post_vendor_event(shost
,
6124 fc_get_event_number(),
6125 sizeof(fabric_event
),
6126 (char *)&fabric_event
,
6134 * lpfc_send_els_event - Posts unsolicited els event
6135 * @vport: Pointer to vport object.
6136 * @ndlp: Pointer FC node object.
6137 * @cmd: ELS command code.
6139 * This function posts an event when there is an incoming
6140 * unsolicited ELS command.
6143 lpfc_send_els_event(struct lpfc_vport
*vport
,
6144 struct lpfc_nodelist
*ndlp
,
6147 struct lpfc_els_event_header
*els_data
= NULL
;
6148 struct lpfc_logo_event
*logo_data
= NULL
;
6149 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6151 if (*payload
== ELS_CMD_LOGO
) {
6152 logo_data
= kmalloc(sizeof(struct lpfc_logo_event
), GFP_KERNEL
);
6154 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6155 "0148 Failed to allocate memory "
6156 "for LOGO event\n");
6159 els_data
= &logo_data
->header
;
6161 els_data
= kmalloc(sizeof(struct lpfc_els_event_header
),
6164 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6165 "0149 Failed to allocate memory "
6170 els_data
->event_type
= FC_REG_ELS_EVENT
;
6173 els_data
->subcategory
= LPFC_EVENT_PLOGI_RCV
;
6176 els_data
->subcategory
= LPFC_EVENT_PRLO_RCV
;
6179 els_data
->subcategory
= LPFC_EVENT_ADISC_RCV
;
6182 els_data
->subcategory
= LPFC_EVENT_LOGO_RCV
;
6183 /* Copy the WWPN in the LOGO payload */
6184 memcpy(logo_data
->logo_wwpn
, &payload
[2],
6185 sizeof(struct lpfc_name
));
6191 memcpy(els_data
->wwpn
, &ndlp
->nlp_portname
, sizeof(struct lpfc_name
));
6192 memcpy(els_data
->wwnn
, &ndlp
->nlp_nodename
, sizeof(struct lpfc_name
));
6193 if (*payload
== ELS_CMD_LOGO
) {
6194 fc_host_post_vendor_event(shost
,
6195 fc_get_event_number(),
6196 sizeof(struct lpfc_logo_event
),
6201 fc_host_post_vendor_event(shost
,
6202 fc_get_event_number(),
6203 sizeof(struct lpfc_els_event_header
),
6214 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
6215 * @phba: pointer to lpfc hba data structure.
6216 * @pring: pointer to a SLI ring.
6217 * @vport: pointer to a host virtual N_Port data structure.
6218 * @elsiocb: pointer to lpfc els command iocb data structure.
6220 * This routine is used for processing the IOCB associated with a unsolicited
6221 * event. It first determines whether there is an existing ndlp that matches
6222 * the DID from the unsolicited IOCB. If not, it will create a new one with
6223 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
6224 * IOCB is then used to invoke the proper routine and to set up proper state
6225 * of the discovery state machine.
6228 lpfc_els_unsol_buffer(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6229 struct lpfc_vport
*vport
, struct lpfc_iocbq
*elsiocb
)
6231 struct Scsi_Host
*shost
;
6232 struct lpfc_nodelist
*ndlp
;
6235 uint32_t cmd
, did
, newnode
, rjt_err
= 0;
6236 IOCB_t
*icmd
= &elsiocb
->iocb
;
6238 if (!vport
|| !(elsiocb
->context2
))
6242 payload
= ((struct lpfc_dmabuf
*)elsiocb
->context2
)->virt
;
6244 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) == 0)
6245 lpfc_post_buffer(phba
, pring
, 1);
6247 did
= icmd
->un
.rcvels
.remoteID
;
6248 if (icmd
->ulpStatus
) {
6249 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6250 "RCV Unsol ELS: status:x%x/x%x did:x%x",
6251 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], did
);
6255 /* Check to see if link went down during discovery */
6256 if (lpfc_els_chk_latt(vport
))
6259 /* Ignore traffic received during vport shutdown. */
6260 if (vport
->load_flag
& FC_UNLOADING
)
6263 /* If NPort discovery is delayed drop incoming ELS */
6264 if ((vport
->fc_flag
& FC_DISC_DELAYED
) &&
6265 (cmd
!= ELS_CMD_PLOGI
))
6268 ndlp
= lpfc_findnode_did(vport
, did
);
6270 /* Cannot find existing Fabric ndlp, so allocate a new one */
6271 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6275 lpfc_nlp_init(vport
, ndlp
, did
);
6276 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6278 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6279 ndlp
->nlp_type
|= NLP_FABRIC
;
6280 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6281 ndlp
= lpfc_enable_node(vport
, ndlp
,
6282 NLP_STE_UNUSED_NODE
);
6285 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6287 if ((did
& Fabric_DID_MASK
) == Fabric_DID_MASK
)
6288 ndlp
->nlp_type
|= NLP_FABRIC
;
6289 } else if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
) {
6290 /* This is similar to the new node path */
6291 ndlp
= lpfc_nlp_get(ndlp
);
6294 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
6298 phba
->fc_stat
.elsRcvFrame
++;
6300 elsiocb
->context1
= lpfc_nlp_get(ndlp
);
6301 elsiocb
->vport
= vport
;
6303 if ((cmd
& ELS_CMD_MASK
) == ELS_CMD_RSCN
) {
6304 cmd
&= ELS_CMD_MASK
;
6306 /* ELS command <elsCmd> received from NPORT <did> */
6307 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
6308 "0112 ELS command x%x received from NPORT x%x "
6309 "Data: x%x\n", cmd
, did
, vport
->port_state
);
6312 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6313 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
6314 did
, vport
->port_state
, ndlp
->nlp_flag
);
6316 phba
->fc_stat
.elsRcvPLOGI
++;
6317 ndlp
= lpfc_plogi_confirm_nport(phba
, payload
, ndlp
);
6319 lpfc_send_els_event(vport
, ndlp
, payload
);
6321 /* If Nport discovery is delayed, reject PLOGIs */
6322 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6323 rjt_err
= LSRJT_UNABLE_TPC
;
6326 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6327 if (!(phba
->pport
->fc_flag
& FC_PT2PT
) ||
6328 (phba
->pport
->fc_flag
& FC_PT2PT_PLOGI
)) {
6329 rjt_err
= LSRJT_UNABLE_TPC
;
6332 /* We get here, and drop thru, if we are PT2PT with
6333 * another NPort and the other side has initiated
6334 * the PLOGI before responding to our FLOGI.
6338 shost
= lpfc_shost_from_vport(vport
);
6339 spin_lock_irq(shost
->host_lock
);
6340 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
6341 spin_unlock_irq(shost
->host_lock
);
6343 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6348 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6349 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
6350 did
, vport
->port_state
, ndlp
->nlp_flag
);
6352 phba
->fc_stat
.elsRcvFLOGI
++;
6353 lpfc_els_rcv_flogi(vport
, elsiocb
, ndlp
);
6358 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6359 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
6360 did
, vport
->port_state
, ndlp
->nlp_flag
);
6362 phba
->fc_stat
.elsRcvLOGO
++;
6363 lpfc_send_els_event(vport
, ndlp
, payload
);
6364 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6365 rjt_err
= LSRJT_UNABLE_TPC
;
6368 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_LOGO
);
6371 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6372 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
6373 did
, vport
->port_state
, ndlp
->nlp_flag
);
6375 phba
->fc_stat
.elsRcvPRLO
++;
6376 lpfc_send_els_event(vport
, ndlp
, payload
);
6377 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6378 rjt_err
= LSRJT_UNABLE_TPC
;
6381 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLO
);
6384 phba
->fc_stat
.elsRcvRSCN
++;
6385 lpfc_els_rcv_rscn(vport
, elsiocb
, ndlp
);
6390 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6391 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
6392 did
, vport
->port_state
, ndlp
->nlp_flag
);
6394 lpfc_send_els_event(vport
, ndlp
, payload
);
6395 phba
->fc_stat
.elsRcvADISC
++;
6396 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6397 rjt_err
= LSRJT_UNABLE_TPC
;
6400 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6404 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6405 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
6406 did
, vport
->port_state
, ndlp
->nlp_flag
);
6408 phba
->fc_stat
.elsRcvPDISC
++;
6409 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6410 rjt_err
= LSRJT_UNABLE_TPC
;
6413 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
,
6417 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6418 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
6419 did
, vport
->port_state
, ndlp
->nlp_flag
);
6421 phba
->fc_stat
.elsRcvFARPR
++;
6422 lpfc_els_rcv_farpr(vport
, elsiocb
, ndlp
);
6425 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6426 "RCV FARP: did:x%x/ste:x%x flg:x%x",
6427 did
, vport
->port_state
, ndlp
->nlp_flag
);
6429 phba
->fc_stat
.elsRcvFARP
++;
6430 lpfc_els_rcv_farp(vport
, elsiocb
, ndlp
);
6433 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6434 "RCV FAN: did:x%x/ste:x%x flg:x%x",
6435 did
, vport
->port_state
, ndlp
->nlp_flag
);
6437 phba
->fc_stat
.elsRcvFAN
++;
6438 lpfc_els_rcv_fan(vport
, elsiocb
, ndlp
);
6441 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6442 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
6443 did
, vport
->port_state
, ndlp
->nlp_flag
);
6445 phba
->fc_stat
.elsRcvPRLI
++;
6446 if (vport
->port_state
< LPFC_DISC_AUTH
) {
6447 rjt_err
= LSRJT_UNABLE_TPC
;
6450 lpfc_disc_state_machine(vport
, ndlp
, elsiocb
, NLP_EVT_RCV_PRLI
);
6453 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6454 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
6455 did
, vport
->port_state
, ndlp
->nlp_flag
);
6457 phba
->fc_stat
.elsRcvLIRR
++;
6458 lpfc_els_rcv_lirr(vport
, elsiocb
, ndlp
);
6463 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6464 "RCV RLS: did:x%x/ste:x%x flg:x%x",
6465 did
, vport
->port_state
, ndlp
->nlp_flag
);
6467 phba
->fc_stat
.elsRcvRLS
++;
6468 lpfc_els_rcv_rls(vport
, elsiocb
, ndlp
);
6473 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6474 "RCV RPS: did:x%x/ste:x%x flg:x%x",
6475 did
, vport
->port_state
, ndlp
->nlp_flag
);
6477 phba
->fc_stat
.elsRcvRPS
++;
6478 lpfc_els_rcv_rps(vport
, elsiocb
, ndlp
);
6483 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6484 "RCV RPL: did:x%x/ste:x%x flg:x%x",
6485 did
, vport
->port_state
, ndlp
->nlp_flag
);
6487 phba
->fc_stat
.elsRcvRPL
++;
6488 lpfc_els_rcv_rpl(vport
, elsiocb
, ndlp
);
6493 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6494 "RCV RNID: did:x%x/ste:x%x flg:x%x",
6495 did
, vport
->port_state
, ndlp
->nlp_flag
);
6497 phba
->fc_stat
.elsRcvRNID
++;
6498 lpfc_els_rcv_rnid(vport
, elsiocb
, ndlp
);
6503 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6504 "RCV RTV: did:x%x/ste:x%x flg:x%x",
6505 did
, vport
->port_state
, ndlp
->nlp_flag
);
6506 phba
->fc_stat
.elsRcvRTV
++;
6507 lpfc_els_rcv_rtv(vport
, elsiocb
, ndlp
);
6512 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6513 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
6514 did
, vport
->port_state
, ndlp
->nlp_flag
);
6516 phba
->fc_stat
.elsRcvRRQ
++;
6517 lpfc_els_rcv_rrq(vport
, elsiocb
, ndlp
);
6522 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6523 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
6524 did
, vport
->port_state
, ndlp
->nlp_flag
);
6526 phba
->fc_stat
.elsRcvECHO
++;
6527 lpfc_els_rcv_echo(vport
, elsiocb
, ndlp
);
6532 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_UNSOL
,
6533 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
6534 cmd
, did
, vport
->port_state
);
6536 /* Unsupported ELS command, reject */
6537 rjt_err
= LSRJT_CMD_UNSUPPORTED
;
6539 /* Unknown ELS command <elsCmd> received from NPORT <did> */
6540 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6541 "0115 Unknown ELS command x%x "
6542 "received from NPORT x%x\n", cmd
, did
);
6548 /* check if need to LS_RJT received ELS cmd */
6550 memset(&stat
, 0, sizeof(stat
));
6551 stat
.un
.b
.lsRjtRsnCode
= rjt_err
;
6552 stat
.un
.b
.lsRjtRsnCodeExp
= LSEXP_NOTHING_MORE
;
6553 lpfc_els_rsp_reject(vport
, stat
.un
.lsRjtError
, elsiocb
, ndlp
,
6557 lpfc_nlp_put(elsiocb
->context1
);
6558 elsiocb
->context1
= NULL
;
6562 if (vport
&& !(vport
->load_flag
& FC_UNLOADING
))
6563 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6564 "0111 Dropping received ELS cmd "
6565 "Data: x%x x%x x%x\n",
6566 icmd
->ulpStatus
, icmd
->un
.ulpWord
[4], icmd
->ulpTimeout
);
6567 phba
->fc_stat
.elsRcvDrop
++;
6571 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
6572 * @phba: pointer to lpfc hba data structure.
6573 * @vpi: host virtual N_Port identifier.
6575 * This routine finds a vport on a HBA (referred by @phba) through a
6576 * @vpi. The function walks the HBA's vport list and returns the address
6577 * of the vport with the matching @vpi.
6580 * NULL - No vport with the matching @vpi found
6581 * Otherwise - Address to the vport with the matching @vpi.
6584 lpfc_find_vport_by_vpid(struct lpfc_hba
*phba
, uint16_t vpi
)
6586 struct lpfc_vport
*vport
;
6587 unsigned long flags
;
6589 spin_lock_irqsave(&phba
->hbalock
, flags
);
6590 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
6591 if (vport
->vpi
== vpi
) {
6592 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6596 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6601 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
6602 * @phba: pointer to lpfc hba data structure.
6603 * @pring: pointer to a SLI ring.
6604 * @elsiocb: pointer to lpfc els iocb data structure.
6606 * This routine is used to process an unsolicited event received from a SLI
6607 * (Service Level Interface) ring. The actual processing of the data buffer
6608 * associated with the unsolicited event is done by invoking the routine
6609 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
6610 * SLI ring on which the unsolicited event was received.
6613 lpfc_els_unsol_event(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6614 struct lpfc_iocbq
*elsiocb
)
6616 struct lpfc_vport
*vport
= phba
->pport
;
6617 IOCB_t
*icmd
= &elsiocb
->iocb
;
6619 struct lpfc_dmabuf
*bdeBuf1
= elsiocb
->context2
;
6620 struct lpfc_dmabuf
*bdeBuf2
= elsiocb
->context3
;
6622 elsiocb
->context1
= NULL
;
6623 elsiocb
->context2
= NULL
;
6624 elsiocb
->context3
= NULL
;
6626 if (icmd
->ulpStatus
== IOSTAT_NEED_BUFFER
) {
6627 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
6628 } else if (icmd
->ulpStatus
== IOSTAT_LOCAL_REJECT
&&
6629 (icmd
->un
.ulpWord
[4] & 0xff) == IOERR_RCV_BUFFER_WAITING
) {
6630 phba
->fc_stat
.NoRcvBuf
++;
6631 /* Not enough posted buffers; Try posting more buffers */
6632 if (!(phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
))
6633 lpfc_post_buffer(phba
, pring
, 0);
6637 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
6638 (icmd
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
||
6639 icmd
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
6640 if (icmd
->unsli3
.rcvsli3
.vpi
== 0xffff)
6641 vport
= phba
->pport
;
6643 vport
= lpfc_find_vport_by_vpid(phba
,
6644 icmd
->unsli3
.rcvsli3
.vpi
- phba
->vpi_base
);
6646 /* If there are no BDEs associated
6647 * with this IOCB, there is nothing to do.
6649 if (icmd
->ulpBdeCount
== 0)
6652 /* type of ELS cmd is first 32bit word
6655 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
6656 elsiocb
->context2
= bdeBuf1
;
6658 paddr
= getPaddr(icmd
->un
.cont64
[0].addrHigh
,
6659 icmd
->un
.cont64
[0].addrLow
);
6660 elsiocb
->context2
= lpfc_sli_ringpostbuf_get(phba
, pring
,
6664 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
6666 * The different unsolicited event handlers would tell us
6667 * if they are done with "mp" by setting context2 to NULL.
6669 if (elsiocb
->context2
) {
6670 lpfc_in_buf_free(phba
, (struct lpfc_dmabuf
*)elsiocb
->context2
);
6671 elsiocb
->context2
= NULL
;
6674 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
6675 if ((phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) &&
6676 icmd
->ulpBdeCount
== 2) {
6677 elsiocb
->context2
= bdeBuf2
;
6678 lpfc_els_unsol_buffer(phba
, pring
, vport
, elsiocb
);
6679 /* free mp if we are done with it */
6680 if (elsiocb
->context2
) {
6681 lpfc_in_buf_free(phba
, elsiocb
->context2
);
6682 elsiocb
->context2
= NULL
;
6688 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
6689 * @phba: pointer to lpfc hba data structure.
6690 * @vport: pointer to a virtual N_Port data structure.
6692 * This routine issues a Port Login (PLOGI) to the Name Server with
6693 * State Change Request (SCR) for a @vport. This routine will create an
6694 * ndlp for the Name Server associated to the @vport if such node does
6695 * not already exist. The PLOGI to Name Server is issued by invoking the
6696 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
6697 * (FDMI) is configured to the @vport, a FDMI node will be created and
6698 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
6701 lpfc_do_scr_ns_plogi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
6703 struct lpfc_nodelist
*ndlp
, *ndlp_fdmi
;
6704 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6707 * If lpfc_delay_discovery parameter is set and the clean address
6708 * bit is cleared and fc fabric parameters chenged, delay FC NPort
6711 spin_lock_irq(shost
->host_lock
);
6712 if (vport
->fc_flag
& FC_DISC_DELAYED
) {
6713 spin_unlock_irq(shost
->host_lock
);
6714 mod_timer(&vport
->delayed_disc_tmo
,
6715 jiffies
+ HZ
* phba
->fc_ratov
);
6718 spin_unlock_irq(shost
->host_lock
);
6720 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
6722 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
6724 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6725 lpfc_disc_start(vport
);
6728 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6729 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6730 "0251 NameServer login: no memory\n");
6733 lpfc_nlp_init(vport
, ndlp
, NameServer_DID
);
6734 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
6735 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
6737 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
6738 lpfc_disc_start(vport
);
6741 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6742 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6743 "0348 NameServer login: node freed\n");
6747 ndlp
->nlp_type
|= NLP_FABRIC
;
6749 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_PLOGI_ISSUE
);
6751 if (lpfc_issue_els_plogi(vport
, ndlp
->nlp_DID
, 0)) {
6752 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6753 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
6754 "0252 Cannot issue NameServer login\n");
6758 if (vport
->cfg_fdmi_on
) {
6759 /* If this is the first time, allocate an ndlp and initialize
6760 * it. Otherwise, make sure the node is enabled and then do the
6763 ndlp_fdmi
= lpfc_findnode_did(vport
, FDMI_DID
);
6765 ndlp_fdmi
= mempool_alloc(phba
->nlp_mem_pool
,
6768 lpfc_nlp_init(vport
, ndlp_fdmi
, FDMI_DID
);
6769 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
6773 if (!NLP_CHK_NODE_ACT(ndlp_fdmi
))
6774 ndlp_fdmi
= lpfc_enable_node(vport
,
6779 lpfc_nlp_set_state(vport
, ndlp_fdmi
,
6780 NLP_STE_PLOGI_ISSUE
);
6781 lpfc_issue_els_plogi(vport
, ndlp_fdmi
->nlp_DID
, 0);
6787 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
6788 * @phba: pointer to lpfc hba data structure.
6789 * @pmb: pointer to the driver internal queue element for mailbox command.
6791 * This routine is the completion callback function to register new vport
6792 * mailbox command. If the new vport mailbox command completes successfully,
6793 * the fabric registration login shall be performed on physical port (the
6794 * new vport created is actually a physical port, with VPI 0) or the port
6795 * login to Name Server for State Change Request (SCR) will be performed
6796 * on virtual port (real virtual port, with VPI greater than 0).
6799 lpfc_cmpl_reg_new_vport(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
6801 struct lpfc_vport
*vport
= pmb
->vport
;
6802 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6803 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
6804 MAILBOX_t
*mb
= &pmb
->u
.mb
;
6807 spin_lock_irq(shost
->host_lock
);
6808 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
6809 spin_unlock_irq(shost
->host_lock
);
6811 if (mb
->mbxStatus
) {
6812 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
6813 "0915 Register VPI failed : Status: x%x"
6814 " upd bit: x%x \n", mb
->mbxStatus
,
6815 mb
->un
.varRegVpi
.upd
);
6816 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
6817 mb
->un
.varRegVpi
.upd
)
6818 goto mbox_err_exit
;
6820 switch (mb
->mbxStatus
) {
6821 case 0x11: /* unsupported feature */
6822 case 0x9603: /* max_vpi exceeded */
6823 case 0x9602: /* Link event since CLEAR_LA */
6824 /* giving up on vport registration */
6825 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6826 spin_lock_irq(shost
->host_lock
);
6827 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
6828 spin_unlock_irq(shost
->host_lock
);
6829 lpfc_can_disctmo(vport
);
6831 /* If reg_vpi fail with invalid VPI status, re-init VPI */
6833 spin_lock_irq(shost
->host_lock
);
6834 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
6835 spin_unlock_irq(shost
->host_lock
);
6836 lpfc_init_vpi(phba
, pmb
, vport
->vpi
);
6838 pmb
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
6839 rc
= lpfc_sli_issue_mbox(phba
, pmb
,
6841 if (rc
== MBX_NOT_FINISHED
) {
6842 lpfc_printf_vlog(vport
,
6844 "2732 Failed to issue INIT_VPI"
6845 " mailbox command\n");
6852 /* Try to recover from this error */
6853 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6854 lpfc_sli4_unreg_all_rpis(vport
);
6855 lpfc_mbx_unreg_vpi(vport
);
6856 spin_lock_irq(shost
->host_lock
);
6857 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
6858 spin_unlock_irq(shost
->host_lock
);
6859 if (vport
->port_type
== LPFC_PHYSICAL_PORT
6860 && !(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
6861 lpfc_issue_init_vfi(vport
);
6863 lpfc_initial_fdisc(vport
);
6867 spin_lock_irq(shost
->host_lock
);
6868 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
6869 spin_unlock_irq(shost
->host_lock
);
6870 if (vport
== phba
->pport
) {
6871 if (phba
->sli_rev
< LPFC_SLI_REV4
)
6872 lpfc_issue_fabric_reglogin(vport
);
6875 * If the physical port is instantiated using
6876 * FDISC, do not start vport discovery.
6878 if (vport
->port_state
!= LPFC_FDISC
)
6879 lpfc_start_fdiscs(phba
);
6880 lpfc_do_scr_ns_plogi(phba
, vport
);
6883 lpfc_do_scr_ns_plogi(phba
, vport
);
6886 /* Now, we decrement the ndlp reference count held for this
6891 mempool_free(pmb
, phba
->mbox_mem_pool
);
6896 * lpfc_register_new_vport - Register a new vport with a HBA
6897 * @phba: pointer to lpfc hba data structure.
6898 * @vport: pointer to a host virtual N_Port data structure.
6899 * @ndlp: pointer to a node-list data structure.
6901 * This routine registers the @vport as a new virtual port with a HBA.
6902 * It is done through a registering vpi mailbox command.
6905 lpfc_register_new_vport(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
,
6906 struct lpfc_nodelist
*ndlp
)
6908 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6911 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6913 lpfc_reg_vpi(vport
, mbox
);
6914 mbox
->vport
= vport
;
6915 mbox
->context2
= lpfc_nlp_get(ndlp
);
6916 mbox
->mbox_cmpl
= lpfc_cmpl_reg_new_vport
;
6917 if (lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
)
6918 == MBX_NOT_FINISHED
) {
6919 /* mailbox command not success, decrement ndlp
6920 * reference count for this command
6923 mempool_free(mbox
, phba
->mbox_mem_pool
);
6925 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
6926 "0253 Register VPI: Can't send mbox\n");
6930 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
6931 "0254 Register VPI: no memory\n");
6937 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
6938 spin_lock_irq(shost
->host_lock
);
6939 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
6940 spin_unlock_irq(shost
->host_lock
);
6945 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
6946 * @phba: pointer to lpfc hba data structure.
6948 * This routine cancels the retry delay timers to all the vports.
6951 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba
*phba
)
6953 struct lpfc_vport
**vports
;
6954 struct lpfc_nodelist
*ndlp
;
6955 uint32_t link_state
;
6958 /* Treat this failure as linkdown for all vports */
6959 link_state
= phba
->link_state
;
6960 lpfc_linkdown(phba
);
6961 phba
->link_state
= link_state
;
6963 vports
= lpfc_create_vport_work_array(phba
);
6966 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
6967 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
6969 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
6970 lpfc_els_flush_cmd(vports
[i
]);
6972 lpfc_destroy_vport_work_array(phba
, vports
);
6977 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
6978 * @phba: pointer to lpfc hba data structure.
6980 * This routine abort all pending discovery commands and
6981 * start a timer to retry FLOGI for the physical port
6985 lpfc_retry_pport_discovery(struct lpfc_hba
*phba
)
6987 struct lpfc_nodelist
*ndlp
;
6988 struct Scsi_Host
*shost
;
6990 /* Cancel the all vports retry delay retry timers */
6991 lpfc_cancel_all_vport_retry_delay_timer(phba
);
6993 /* If fabric require FLOGI, then re-instantiate physical login */
6994 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
6998 shost
= lpfc_shost_from_vport(phba
->pport
);
6999 mod_timer(&ndlp
->nlp_delayfunc
, jiffies
+ HZ
);
7000 spin_lock_irq(shost
->host_lock
);
7001 ndlp
->nlp_flag
|= NLP_DELAY_TMO
;
7002 spin_unlock_irq(shost
->host_lock
);
7003 ndlp
->nlp_last_elscmd
= ELS_CMD_FLOGI
;
7004 phba
->pport
->port_state
= LPFC_FLOGI
;
7009 * lpfc_fabric_login_reqd - Check if FLOGI required.
7010 * @phba: pointer to lpfc hba data structure.
7011 * @cmdiocb: pointer to FDISC command iocb.
7012 * @rspiocb: pointer to FDISC response iocb.
7014 * This routine checks if a FLOGI is reguired for FDISC
7018 lpfc_fabric_login_reqd(struct lpfc_hba
*phba
,
7019 struct lpfc_iocbq
*cmdiocb
,
7020 struct lpfc_iocbq
*rspiocb
)
7023 if ((rspiocb
->iocb
.ulpStatus
!= IOSTAT_FABRIC_RJT
) ||
7024 (rspiocb
->iocb
.un
.ulpWord
[4] != RJT_LOGIN_REQUIRED
))
7031 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
7032 * @phba: pointer to lpfc hba data structure.
7033 * @cmdiocb: pointer to lpfc command iocb data structure.
7034 * @rspiocb: pointer to lpfc response iocb data structure.
7036 * This routine is the completion callback function to a Fabric Discover
7037 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
7038 * single threaded, each FDISC completion callback function will reset
7039 * the discovery timer for all vports such that the timers will not get
7040 * unnecessary timeout. The function checks the FDISC IOCB status. If error
7041 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
7042 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
7043 * assigned to the vport has been changed with the completion of the FDISC
7044 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
7045 * are unregistered from the HBA, and then the lpfc_register_new_vport()
7046 * routine is invoked to register new vport with the HBA. Otherwise, the
7047 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
7048 * Server for State Change Request (SCR).
7051 lpfc_cmpl_els_fdisc(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7052 struct lpfc_iocbq
*rspiocb
)
7054 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7055 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7056 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) cmdiocb
->context1
;
7057 struct lpfc_nodelist
*np
;
7058 struct lpfc_nodelist
*next_np
;
7059 IOCB_t
*irsp
= &rspiocb
->iocb
;
7060 struct lpfc_iocbq
*piocb
;
7061 struct lpfc_dmabuf
*pcmd
= cmdiocb
->context2
, *prsp
;
7062 struct serv_parm
*sp
;
7063 uint8_t fabric_param_changed
;
7065 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7066 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
7067 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7069 /* Since all FDISCs are being single threaded, we
7070 * must reset the discovery timer for ALL vports
7071 * waiting to send FDISC when one completes.
7073 list_for_each_entry(piocb
, &phba
->fabric_iocb_list
, list
) {
7074 lpfc_set_disctmo(piocb
->vport
);
7077 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7078 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
7079 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], vport
->fc_prevDID
);
7081 if (irsp
->ulpStatus
) {
7083 if (lpfc_fabric_login_reqd(phba
, cmdiocb
, rspiocb
)) {
7084 lpfc_retry_pport_discovery(phba
);
7088 /* Check for retry */
7089 if (lpfc_els_retry(phba
, cmdiocb
, rspiocb
))
7092 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7093 "0126 FDISC failed. (%d/%d)\n",
7094 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7097 spin_lock_irq(shost
->host_lock
);
7098 vport
->fc_flag
&= ~FC_VPORT_CVL_RCVD
;
7099 vport
->fc_flag
&= ~FC_VPORT_LOGO_RCVD
;
7100 vport
->fc_flag
|= FC_FABRIC
;
7101 if (vport
->phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
)
7102 vport
->fc_flag
|= FC_PUBLIC_LOOP
;
7103 spin_unlock_irq(shost
->host_lock
);
7105 vport
->fc_myDID
= irsp
->un
.ulpWord
[4] & Mask_DID
;
7106 lpfc_vport_set_state(vport
, FC_VPORT_ACTIVE
);
7107 prsp
= list_get_first(&pcmd
->list
, struct lpfc_dmabuf
, list
);
7108 sp
= prsp
->virt
+ sizeof(uint32_t);
7109 fabric_param_changed
= lpfc_check_clean_addr_bit(vport
, sp
);
7110 memcpy(&vport
->fabric_portname
, &sp
->portName
,
7111 sizeof(struct lpfc_name
));
7112 memcpy(&vport
->fabric_nodename
, &sp
->nodeName
,
7113 sizeof(struct lpfc_name
));
7114 if (fabric_param_changed
&&
7115 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7116 /* If our NportID changed, we need to ensure all
7117 * remaining NPORTs get unreg_login'ed so we can
7120 list_for_each_entry_safe(np
, next_np
,
7121 &vport
->fc_nodes
, nlp_listp
) {
7122 if (!NLP_CHK_NODE_ACT(ndlp
) ||
7123 (np
->nlp_state
!= NLP_STE_NPR_NODE
) ||
7124 !(np
->nlp_flag
& NLP_NPR_ADISC
))
7126 spin_lock_irq(shost
->host_lock
);
7127 np
->nlp_flag
&= ~NLP_NPR_ADISC
;
7128 spin_unlock_irq(shost
->host_lock
);
7129 lpfc_unreg_rpi(vport
, np
);
7131 lpfc_cleanup_pending_mbox(vport
);
7133 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7134 lpfc_sli4_unreg_all_rpis(vport
);
7136 lpfc_mbx_unreg_vpi(vport
);
7137 spin_lock_irq(shost
->host_lock
);
7138 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
7139 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7140 vport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
7142 vport
->fc_flag
|= FC_LOGO_RCVD_DID_CHNG
;
7143 spin_unlock_irq(shost
->host_lock
);
7144 } else if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
7145 !(vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)) {
7147 * Driver needs to re-reg VPI in order for f/w
7148 * to update the MAC address.
7150 lpfc_register_new_vport(phba
, vport
, ndlp
);
7154 if (vport
->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
)
7155 lpfc_issue_init_vpi(vport
);
7156 else if (vport
->fc_flag
& FC_VPORT_NEEDS_REG_VPI
)
7157 lpfc_register_new_vport(phba
, vport
, ndlp
);
7159 lpfc_do_scr_ns_plogi(phba
, vport
);
7162 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7163 /* Cancel discovery timer */
7164 lpfc_can_disctmo(vport
);
7167 lpfc_els_free_iocb(phba
, cmdiocb
);
7171 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
7172 * @vport: pointer to a virtual N_Port data structure.
7173 * @ndlp: pointer to a node-list data structure.
7174 * @retry: number of retries to the command IOCB.
7176 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
7177 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
7178 * routine to issue the IOCB, which makes sure only one outstanding fabric
7179 * IOCB will be sent off HBA at any given time.
7181 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7182 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7183 * will be stored into the context1 field of the IOCB for the completion
7184 * callback function to the FDISC ELS command.
7187 * 0 - Successfully issued fdisc iocb command
7188 * 1 - Failed to issue fdisc iocb command
7191 lpfc_issue_els_fdisc(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
7194 struct lpfc_hba
*phba
= vport
->phba
;
7196 struct lpfc_iocbq
*elsiocb
;
7197 struct serv_parm
*sp
;
7200 int did
= ndlp
->nlp_DID
;
7203 vport
->port_state
= LPFC_FDISC
;
7204 cmdsize
= (sizeof(uint32_t) + sizeof(struct serv_parm
));
7205 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, retry
, ndlp
, did
,
7208 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7209 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7210 "0255 Issue FDISC: no IOCB\n");
7214 icmd
= &elsiocb
->iocb
;
7215 icmd
->un
.elsreq64
.myID
= 0;
7216 icmd
->un
.elsreq64
.fl
= 1;
7218 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
7219 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
7220 LPFC_SLI_INTF_IF_TYPE_0
)) {
7221 /* FDISC needs to be 1 for WQE VPI */
7222 elsiocb
->iocb
.ulpCt_h
= (SLI4_CT_VPI
>> 1) & 1;
7223 elsiocb
->iocb
.ulpCt_l
= SLI4_CT_VPI
& 1 ;
7224 /* Set the ulpContext to the vpi */
7225 elsiocb
->iocb
.ulpContext
= vport
->vpi
+ phba
->vpi_base
;
7227 /* For FDISC, Let FDISC rsp set the NPortID for this VPI */
7232 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7233 *((uint32_t *) (pcmd
)) = ELS_CMD_FDISC
;
7234 pcmd
+= sizeof(uint32_t); /* CSP Word 1 */
7235 memcpy(pcmd
, &vport
->phba
->pport
->fc_sparam
, sizeof(struct serv_parm
));
7236 sp
= (struct serv_parm
*) pcmd
;
7237 /* Setup CSPs accordingly for Fabric */
7238 sp
->cmn
.e_d_tov
= 0;
7239 sp
->cmn
.w2
.r_a_tov
= 0;
7240 sp
->cls1
.classValid
= 0;
7241 sp
->cls2
.seqDelivery
= 1;
7242 sp
->cls3
.seqDelivery
= 1;
7244 pcmd
+= sizeof(uint32_t); /* CSP Word 2 */
7245 pcmd
+= sizeof(uint32_t); /* CSP Word 3 */
7246 pcmd
+= sizeof(uint32_t); /* CSP Word 4 */
7247 pcmd
+= sizeof(uint32_t); /* Port Name */
7248 memcpy(pcmd
, &vport
->fc_portname
, 8);
7249 pcmd
+= sizeof(uint32_t); /* Node Name */
7250 pcmd
+= sizeof(uint32_t); /* Node Name */
7251 memcpy(pcmd
, &vport
->fc_nodename
, 8);
7253 lpfc_set_disctmo(vport
);
7255 phba
->fc_stat
.elsXmitFDISC
++;
7256 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_fdisc
;
7258 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7259 "Issue FDISC: did:x%x",
7262 rc
= lpfc_issue_fabric_iocb(phba
, elsiocb
);
7263 if (rc
== IOCB_ERROR
) {
7264 lpfc_els_free_iocb(phba
, elsiocb
);
7265 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
7266 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
7267 "0256 Issue FDISC: Cannot send IOCB\n");
7270 lpfc_vport_set_state(vport
, FC_VPORT_INITIALIZING
);
7275 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
7276 * @phba: pointer to lpfc hba data structure.
7277 * @cmdiocb: pointer to lpfc command iocb data structure.
7278 * @rspiocb: pointer to lpfc response iocb data structure.
7280 * This routine is the completion callback function to the issuing of a LOGO
7281 * ELS command off a vport. It frees the command IOCB and then decrement the
7282 * reference count held on ndlp for this completion function, indicating that
7283 * the reference to the ndlp is no long needed. Note that the
7284 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
7285 * callback function and an additional explicit ndlp reference decrementation
7286 * will trigger the actual release of the ndlp.
7289 lpfc_cmpl_els_npiv_logo(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7290 struct lpfc_iocbq
*rspiocb
)
7292 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7294 struct lpfc_nodelist
*ndlp
;
7295 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7297 ndlp
= (struct lpfc_nodelist
*)cmdiocb
->context1
;
7298 irsp
= &rspiocb
->iocb
;
7299 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7300 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
7301 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4], irsp
->un
.rcvels
.remoteID
);
7303 lpfc_els_free_iocb(phba
, cmdiocb
);
7304 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
7306 /* Trigger the release of the ndlp after logo */
7309 /* NPIV LOGO completes to NPort <nlp_DID> */
7310 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
7311 "2928 NPIV LOGO completes to NPort x%x "
7312 "Data: x%x x%x x%x x%x\n",
7313 ndlp
->nlp_DID
, irsp
->ulpStatus
, irsp
->un
.ulpWord
[4],
7314 irsp
->ulpTimeout
, vport
->num_disc_nodes
);
7316 if (irsp
->ulpStatus
== IOSTAT_SUCCESS
) {
7317 spin_lock_irq(shost
->host_lock
);
7318 vport
->fc_flag
&= ~FC_FABRIC
;
7319 spin_unlock_irq(shost
->host_lock
);
7324 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
7325 * @vport: pointer to a virtual N_Port data structure.
7326 * @ndlp: pointer to a node-list data structure.
7328 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
7330 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7331 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7332 * will be stored into the context1 field of the IOCB for the completion
7333 * callback function to the LOGO ELS command.
7336 * 0 - Successfully issued logo off the @vport
7337 * 1 - Failed to issue logo off the @vport
7340 lpfc_issue_els_npiv_logo(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
7342 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
7343 struct lpfc_hba
*phba
= vport
->phba
;
7345 struct lpfc_iocbq
*elsiocb
;
7349 cmdsize
= 2 * sizeof(uint32_t) + sizeof(struct lpfc_name
);
7350 elsiocb
= lpfc_prep_els_iocb(vport
, 1, cmdsize
, 0, ndlp
, ndlp
->nlp_DID
,
7355 icmd
= &elsiocb
->iocb
;
7356 pcmd
= (uint8_t *) (((struct lpfc_dmabuf
*) elsiocb
->context2
)->virt
);
7357 *((uint32_t *) (pcmd
)) = ELS_CMD_LOGO
;
7358 pcmd
+= sizeof(uint32_t);
7360 /* Fill in LOGO payload */
7361 *((uint32_t *) (pcmd
)) = be32_to_cpu(vport
->fc_myDID
);
7362 pcmd
+= sizeof(uint32_t);
7363 memcpy(pcmd
, &vport
->fc_portname
, sizeof(struct lpfc_name
));
7365 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
7366 "Issue LOGO npiv did:x%x flg:x%x",
7367 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
7369 elsiocb
->iocb_cmpl
= lpfc_cmpl_els_npiv_logo
;
7370 spin_lock_irq(shost
->host_lock
);
7371 ndlp
->nlp_flag
|= NLP_LOGO_SND
;
7372 spin_unlock_irq(shost
->host_lock
);
7373 if (lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, elsiocb
, 0) ==
7375 spin_lock_irq(shost
->host_lock
);
7376 ndlp
->nlp_flag
&= ~NLP_LOGO_SND
;
7377 spin_unlock_irq(shost
->host_lock
);
7378 lpfc_els_free_iocb(phba
, elsiocb
);
7385 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
7386 * @ptr: holder for the timer function associated data.
7388 * This routine is invoked by the fabric iocb block timer after
7389 * timeout. It posts the fabric iocb block timeout event by setting the
7390 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
7391 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
7392 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
7393 * posted event WORKER_FABRIC_BLOCK_TMO.
7396 lpfc_fabric_block_timeout(unsigned long ptr
)
7398 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
7399 unsigned long iflags
;
7400 uint32_t tmo_posted
;
7402 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
7403 tmo_posted
= phba
->pport
->work_port_events
& WORKER_FABRIC_BLOCK_TMO
;
7405 phba
->pport
->work_port_events
|= WORKER_FABRIC_BLOCK_TMO
;
7406 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
7409 lpfc_worker_wake_up(phba
);
7414 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
7415 * @phba: pointer to lpfc hba data structure.
7417 * This routine issues one fabric iocb from the driver internal list to
7418 * the HBA. It first checks whether it's ready to issue one fabric iocb to
7419 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
7420 * remove one pending fabric iocb from the driver internal list and invokes
7421 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
7424 lpfc_resume_fabric_iocbs(struct lpfc_hba
*phba
)
7426 struct lpfc_iocbq
*iocb
;
7427 unsigned long iflags
;
7433 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7434 /* Post any pending iocb to the SLI layer */
7435 if (atomic_read(&phba
->fabric_iocb_count
) == 0) {
7436 list_remove_head(&phba
->fabric_iocb_list
, iocb
, typeof(*iocb
),
7439 /* Increment fabric iocb count to hold the position */
7440 atomic_inc(&phba
->fabric_iocb_count
);
7442 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7444 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7445 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7446 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7448 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7449 "Fabric sched1: ste:x%x",
7450 iocb
->vport
->port_state
, 0, 0);
7452 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7454 if (ret
== IOCB_ERROR
) {
7455 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7456 iocb
->fabric_iocb_cmpl
= NULL
;
7457 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7459 cmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
7460 cmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
7461 iocb
->iocb_cmpl(phba
, iocb
, iocb
);
7463 atomic_dec(&phba
->fabric_iocb_count
);
7472 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
7473 * @phba: pointer to lpfc hba data structure.
7475 * This routine unblocks the issuing fabric iocb command. The function
7476 * will clear the fabric iocb block bit and then invoke the routine
7477 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
7478 * from the driver internal fabric iocb list.
7481 lpfc_unblock_fabric_iocbs(struct lpfc_hba
*phba
)
7483 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7485 lpfc_resume_fabric_iocbs(phba
);
7490 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
7491 * @phba: pointer to lpfc hba data structure.
7493 * This routine blocks the issuing fabric iocb for a specified amount of
7494 * time (currently 100 ms). This is done by set the fabric iocb block bit
7495 * and set up a timeout timer for 100ms. When the block bit is set, no more
7496 * fabric iocb will be issued out of the HBA.
7499 lpfc_block_fabric_iocbs(struct lpfc_hba
*phba
)
7503 blocked
= test_and_set_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7504 /* Start a timer to unblock fabric iocbs after 100ms */
7506 mod_timer(&phba
->fabric_block_timer
, jiffies
+ HZ
/10 );
7512 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
7513 * @phba: pointer to lpfc hba data structure.
7514 * @cmdiocb: pointer to lpfc command iocb data structure.
7515 * @rspiocb: pointer to lpfc response iocb data structure.
7517 * This routine is the callback function that is put to the fabric iocb's
7518 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
7519 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
7520 * function first restores and invokes the original iocb's callback function
7521 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
7522 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
7525 lpfc_cmpl_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7526 struct lpfc_iocbq
*rspiocb
)
7530 if ((cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
) != LPFC_IO_FABRIC
)
7533 switch (rspiocb
->iocb
.ulpStatus
) {
7534 case IOSTAT_NPORT_RJT
:
7535 case IOSTAT_FABRIC_RJT
:
7536 if (rspiocb
->iocb
.un
.ulpWord
[4] & RJT_UNAVAIL_TEMP
) {
7537 lpfc_block_fabric_iocbs(phba
);
7541 case IOSTAT_NPORT_BSY
:
7542 case IOSTAT_FABRIC_BSY
:
7543 lpfc_block_fabric_iocbs(phba
);
7547 stat
.un
.lsRjtError
=
7548 be32_to_cpu(rspiocb
->iocb
.un
.ulpWord
[4]);
7549 if ((stat
.un
.b
.lsRjtRsnCode
== LSRJT_UNABLE_TPC
) ||
7550 (stat
.un
.b
.lsRjtRsnCode
== LSRJT_LOGICAL_BSY
))
7551 lpfc_block_fabric_iocbs(phba
);
7555 if (atomic_read(&phba
->fabric_iocb_count
) == 0)
7558 cmdiocb
->iocb_cmpl
= cmdiocb
->fabric_iocb_cmpl
;
7559 cmdiocb
->fabric_iocb_cmpl
= NULL
;
7560 cmdiocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7561 cmdiocb
->iocb_cmpl(phba
, cmdiocb
, rspiocb
);
7563 atomic_dec(&phba
->fabric_iocb_count
);
7564 if (!test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
)) {
7565 /* Post any pending iocbs to HBA */
7566 lpfc_resume_fabric_iocbs(phba
);
7571 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
7572 * @phba: pointer to lpfc hba data structure.
7573 * @iocb: pointer to lpfc command iocb data structure.
7575 * This routine is used as the top-level API for issuing a fabric iocb command
7576 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
7577 * function makes sure that only one fabric bound iocb will be outstanding at
7578 * any given time. As such, this function will first check to see whether there
7579 * is already an outstanding fabric iocb on the wire. If so, it will put the
7580 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
7581 * issued later. Otherwise, it will issue the iocb on the wire and update the
7582 * fabric iocb count it indicate that there is one fabric iocb on the wire.
7584 * Note, this implementation has a potential sending out fabric IOCBs out of
7585 * order. The problem is caused by the construction of the "ready" boolen does
7586 * not include the condition that the internal fabric IOCB list is empty. As
7587 * such, it is possible a fabric IOCB issued by this routine might be "jump"
7588 * ahead of the fabric IOCBs in the internal list.
7591 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
7592 * IOCB_ERROR - failed to issue fabric iocb
7595 lpfc_issue_fabric_iocb(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocb
)
7597 unsigned long iflags
;
7601 if (atomic_read(&phba
->fabric_iocb_count
) > 1)
7604 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7605 ready
= atomic_read(&phba
->fabric_iocb_count
) == 0 &&
7606 !test_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
7609 /* Increment fabric iocb count to hold the position */
7610 atomic_inc(&phba
->fabric_iocb_count
);
7611 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7613 iocb
->fabric_iocb_cmpl
= iocb
->iocb_cmpl
;
7614 iocb
->iocb_cmpl
= lpfc_cmpl_fabric_iocb
;
7615 iocb
->iocb_flag
|= LPFC_IO_FABRIC
;
7617 lpfc_debugfs_disc_trc(iocb
->vport
, LPFC_DISC_TRC_ELS_CMD
,
7618 "Fabric sched2: ste:x%x",
7619 iocb
->vport
->port_state
, 0, 0);
7621 ret
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, iocb
, 0);
7623 if (ret
== IOCB_ERROR
) {
7624 iocb
->iocb_cmpl
= iocb
->fabric_iocb_cmpl
;
7625 iocb
->fabric_iocb_cmpl
= NULL
;
7626 iocb
->iocb_flag
&= ~LPFC_IO_FABRIC
;
7627 atomic_dec(&phba
->fabric_iocb_count
);
7630 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7631 list_add_tail(&iocb
->list
, &phba
->fabric_iocb_list
);
7632 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7639 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
7640 * @vport: pointer to a virtual N_Port data structure.
7642 * This routine aborts all the IOCBs associated with a @vport from the
7643 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
7644 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
7645 * list, removes each IOCB associated with the @vport off the list, set the
7646 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
7647 * associated with the IOCB.
7649 static void lpfc_fabric_abort_vport(struct lpfc_vport
*vport
)
7651 LIST_HEAD(completions
);
7652 struct lpfc_hba
*phba
= vport
->phba
;
7653 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7655 spin_lock_irq(&phba
->hbalock
);
7656 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
7659 if (piocb
->vport
!= vport
)
7662 list_move_tail(&piocb
->list
, &completions
);
7664 spin_unlock_irq(&phba
->hbalock
);
7666 /* Cancel all the IOCBs from the completions list */
7667 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7672 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
7673 * @ndlp: pointer to a node-list data structure.
7675 * This routine aborts all the IOCBs associated with an @ndlp from the
7676 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
7677 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
7678 * list, removes each IOCB associated with the @ndlp off the list, set the
7679 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
7680 * associated with the IOCB.
7682 void lpfc_fabric_abort_nport(struct lpfc_nodelist
*ndlp
)
7684 LIST_HEAD(completions
);
7685 struct lpfc_hba
*phba
= ndlp
->phba
;
7686 struct lpfc_iocbq
*tmp_iocb
, *piocb
;
7687 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7689 spin_lock_irq(&phba
->hbalock
);
7690 list_for_each_entry_safe(piocb
, tmp_iocb
, &phba
->fabric_iocb_list
,
7692 if ((lpfc_check_sli_ndlp(phba
, pring
, piocb
, ndlp
))) {
7694 list_move_tail(&piocb
->list
, &completions
);
7697 spin_unlock_irq(&phba
->hbalock
);
7699 /* Cancel all the IOCBs from the completions list */
7700 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7705 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
7706 * @phba: pointer to lpfc hba data structure.
7708 * This routine aborts all the IOCBs currently on the driver internal
7709 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
7710 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
7711 * list, removes IOCBs off the list, set the status feild to
7712 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
7715 void lpfc_fabric_abort_hba(struct lpfc_hba
*phba
)
7717 LIST_HEAD(completions
);
7719 spin_lock_irq(&phba
->hbalock
);
7720 list_splice_init(&phba
->fabric_iocb_list
, &completions
);
7721 spin_unlock_irq(&phba
->hbalock
);
7723 /* Cancel all the IOCBs from the completions list */
7724 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7729 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
7730 * @vport: pointer to lpfc vport data structure.
7732 * This routine is invoked by the vport cleanup for deletions and the cleanup
7733 * for an ndlp on removal.
7736 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport
*vport
)
7738 struct lpfc_hba
*phba
= vport
->phba
;
7739 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
7740 unsigned long iflag
= 0;
7742 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7743 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7744 list_for_each_entry_safe(sglq_entry
, sglq_next
,
7745 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
7746 if (sglq_entry
->ndlp
&& sglq_entry
->ndlp
->vport
== vport
)
7747 sglq_entry
->ndlp
= NULL
;
7749 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7750 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7755 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
7756 * @phba: pointer to lpfc hba data structure.
7757 * @axri: pointer to the els xri abort wcqe structure.
7759 * This routine is invoked by the worker thread to process a SLI4 slow-path
7763 lpfc_sli4_els_xri_aborted(struct lpfc_hba
*phba
,
7764 struct sli4_wcqe_xri_aborted
*axri
)
7766 uint16_t xri
= bf_get(lpfc_wcqe_xa_xri
, axri
);
7767 uint16_t rxid
= bf_get(lpfc_wcqe_xa_remote_xid
, axri
);
7769 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
7770 unsigned long iflag
= 0;
7771 struct lpfc_nodelist
*ndlp
;
7772 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7774 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7775 spin_lock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7776 list_for_each_entry_safe(sglq_entry
, sglq_next
,
7777 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
, list
) {
7778 if (sglq_entry
->sli4_xritag
== xri
) {
7779 list_del(&sglq_entry
->list
);
7780 ndlp
= sglq_entry
->ndlp
;
7781 sglq_entry
->ndlp
= NULL
;
7782 list_add_tail(&sglq_entry
->list
,
7783 &phba
->sli4_hba
.lpfc_sgl_list
);
7784 sglq_entry
->state
= SGL_FREED
;
7785 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7786 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7787 lpfc_set_rrq_active(phba
, ndlp
, xri
, rxid
, 1);
7789 /* Check if TXQ queue needs to be serviced */
7791 lpfc_worker_wake_up(phba
);
7795 spin_unlock(&phba
->sli4_hba
.abts_sgl_list_lock
);
7796 sglq_entry
= __lpfc_get_active_sglq(phba
, xri
);
7797 if (!sglq_entry
|| (sglq_entry
->sli4_xritag
!= xri
)) {
7798 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7801 sglq_entry
->state
= SGL_XRI_ABORTED
;
7802 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);