openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers/scsi/lpfc/lpfc_els.c

4747 lines
127 KiB
C
Raw Blame History

/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2007 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
static int lpfc_max_els_tries = 3;
int
lpfc_els_chk_latt(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t ha_copy;
if (vport->port_state >= LPFC_VPORT_READY ||
phba->link_state == LPFC_LINK_DOWN)
return 0;
/* Read the HBA Host Attention Register */
ha_copy = readl(phba->HAregaddr);
if (!(ha_copy & HA_LATT))
return 0;
/* Pending Link Event during Discovery */
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"%d (%d):0237 Pending Link Event during "
"Discovery: State x%x\n",
phba->brd_no, vport->vpi, phba->pport->port_state);
/* CLEAR_LA should re-enable link attention events and
* we should then imediately take a LATT event. The
* LATT processing should call lpfc_linkdown() which
* will cleanup any left over in-progress discovery
* events.
*/
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_ABORT_DISCOVERY;
spin_unlock_irq(shost->host_lock);
if (phba->link_state != LPFC_CLEAR_LA)
lpfc_issue_clear_la(phba, vport);
return 1;
}
static struct lpfc_iocbq *
lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
uint16_t cmdSize, uint8_t retry,
struct lpfc_nodelist *ndlp, uint32_t did,
uint32_t elscmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
struct ulp_bde64 *bpl;
IOCB_t *icmd;
if (!lpfc_is_link_up(phba))
return NULL;
/* Allocate buffer for command iocb */
elsiocb = lpfc_sli_get_iocbq(phba);
if (elsiocb == NULL)
return NULL;
icmd = &elsiocb->iocb;
/* fill in BDEs for command */
/* Allocate buffer for command payload */
if (((pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
((pcmd->virt = lpfc_mbuf_alloc(phba,
MEM_PRI, &(pcmd->phys))) == 0)) {
kfree(pcmd);
lpfc_sli_release_iocbq(phba, elsiocb);
return NULL;
}
INIT_LIST_HEAD(&pcmd->list);
/* Allocate buffer for response payload */
if (expectRsp) {
prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (prsp)
prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&prsp->phys);
if (prsp == 0 || prsp->virt == 0) {
kfree(prsp);
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
kfree(pcmd);
lpfc_sli_release_iocbq(phba, elsiocb);
return NULL;
}
INIT_LIST_HEAD(&prsp->list);
} else {
prsp = NULL;
}
/* Allocate buffer for Buffer ptr list */
pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (pbuflist)
pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&pbuflist->phys);
if (pbuflist == 0 || pbuflist->virt == 0) {
lpfc_sli_release_iocbq(phba, elsiocb);
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
kfree(pcmd);
kfree(prsp);
kfree(pbuflist);
return NULL;
}
INIT_LIST_HEAD(&pbuflist->list);
icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL;
icmd->un.elsreq64.remoteID = did; /* DID */
if (expectRsp) {
icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
icmd->ulpTimeout = phba->fc_ratov * 2;
} else {
icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64);
icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
}
icmd->ulpBdeCount = 1;
icmd->ulpLe = 1;
icmd->ulpClass = CLASS3;
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
icmd->un.elsreq64.myID = vport->fc_myDID;
/* For ELS_REQUEST64_CR, use the VPI by default */
icmd->ulpContext = vport->vpi;
icmd->ulpCt_h = 0;
icmd->ulpCt_l = 1;
}
bpl = (struct ulp_bde64 *) pbuflist->virt;
bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
bpl->tus.f.bdeSize = cmdSize;
bpl->tus.f.bdeFlags = 0;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
if (expectRsp) {
bpl++;
bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
bpl->tus.f.bdeSize = FCELSSIZE;
bpl->tus.f.bdeFlags = BUFF_USE_RCV;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
}
/* Save for completion so we can release these resources */
if (elscmd != ELS_CMD_LS_RJT)
elsiocb->context1 = lpfc_nlp_get(ndlp);
elsiocb->context2 = pcmd;
elsiocb->context3 = pbuflist;
elsiocb->retry = retry;
elsiocb->vport = vport;
elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
if (prsp) {
list_add(&prsp->list, &pcmd->list);
}
if (expectRsp) {
/* Xmit ELS command <elsCmd> to remote NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0116 Xmit ELS command x%x to remote "
"NPORT x%x I/O tag: x%x, port state: x%x\n",
phba->brd_no, vport->vpi, elscmd, did,
elsiocb->iotag, vport->port_state);
} else {
/* Xmit ELS response <elsCmd> to remote NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0117 Xmit ELS response x%x to remote "
"NPORT x%x I/O tag: x%x, size: x%x\n",
phba->brd_no, vport->vpi, elscmd,
ndlp->nlp_DID, elsiocb->iotag, cmdSize);
}
return elsiocb;
}
static int
lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
struct lpfc_dmabuf *mp;
struct lpfc_nodelist *ndlp;
struct serv_parm *sp;
int rc;
sp = &phba->fc_fabparam;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
goto fail;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
goto fail;
vport->port_state = LPFC_FABRIC_CFG_LINK;
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
if (rc == MBX_NOT_FINISHED)
goto fail_free_mbox;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
goto fail;
rc = lpfc_reg_login(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
0);
if (rc)
goto fail_free_mbox;
mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
mbox->vport = vport;
mbox->context2 = lpfc_nlp_get(ndlp);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
if (rc == MBX_NOT_FINISHED)
goto fail_issue_reg_login;
return 0;
fail_issue_reg_login:
lpfc_nlp_put(ndlp);
mp = (struct lpfc_dmabuf *) mbox->context1;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
fail_free_mbox:
mempool_free(mbox, phba->mbox_mem_pool);
fail:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0249 Cannot issue Register Fabric login\n",
phba->brd_no, vport->vpi);
return -ENXIO;
}
static int
lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct serv_parm *sp, IOCB_t *irsp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_FABRIC;
spin_unlock_irq(shost->host_lock);
phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
if (phba->fc_topology == TOPOLOGY_LOOP) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PUBLIC_LOOP;
spin_unlock_irq(shost->host_lock);
} else {
/*
* If we are a N-port connected to a Fabric, fixup sparam's so
* logins to devices on remote loops work.
*/
vport->fc_sparam.cmn.altBbCredit = 1;
}
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
ndlp->nlp_class_sup = 0;
if (sp->cls1.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS1;
if (sp->cls2.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS2;
if (sp->cls3.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS3;
if (sp->cls4.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
sp->cmn.bbRcvSizeLsb;
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
if (sp->cmn.response_multiple_NPort) {
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_VPORT,
"%d:1816 FLOGI NPIV supported, "
"response data 0x%x\n",
phba->brd_no,
sp->cmn.response_multiple_NPort);
phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
} else {
/* Because we asked f/w for NPIV it still expects us
to call reg_vnpid atleast for the physcial host */
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_VPORT,
"%d:1817 Fabric does not support NPIV "
"- configuring single port mode.\n",
phba->brd_no);
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
}
}
if ((vport->fc_prevDID != vport->fc_myDID) &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
* remaining NPORTs get unreg_login'ed.
*/
list_for_each_entry_safe(np, next_np,
&vport->fc_nodes, nlp_listp) {
if ((np->nlp_state != NLP_STE_NPR_NODE) ||
!(np->nlp_flag & NLP_NPR_ADISC))
continue;
spin_lock_irq(shost->host_lock);
np->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vport, np);
}
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
lpfc_mbx_unreg_vpi(vport);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
}
}
ndlp->nlp_sid = irsp->un.ulpWord[4] & Mask_DID;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) {
lpfc_register_new_vport(phba, vport, ndlp);
return 0;
}
lpfc_issue_fabric_reglogin(vport);
return 0;
}
/*
* We FLOGIed into an NPort, initiate pt2pt protocol
*/
static int
lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct serv_parm *sp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
phba->fc_edtov = FF_DEF_EDTOV;
phba->fc_ratov = FF_DEF_RATOV;
rc = memcmp(&vport->fc_portname, &sp->portName,
sizeof(vport->fc_portname));
if (rc >= 0) {
/* This side will initiate the PLOGI */
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT_PLOGI;
spin_unlock_irq(shost->host_lock);
/*
* N_Port ID cannot be 0, set our to LocalID the other
* side will be RemoteID.
*/
/* not equal */
if (rc)
vport->fc_myDID = PT2PT_LocalID;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
goto fail;
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox,
MBX_NOWAIT | MBX_STOP_IOCB);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
goto fail;
}
lpfc_nlp_put(ndlp);
ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
if (!ndlp) {
/*
* Cannot find existing Fabric ndlp, so allocate a
* new one
*/
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
goto fail;
lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
}
memcpy(&ndlp->nlp_portname, &sp->portName,
sizeof(struct lpfc_name));
memcpy(&ndlp->nlp_nodename, &sp->nodeName,
sizeof(struct lpfc_name));
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
} else {
/* This side will wait for the PLOGI */
lpfc_nlp_put(ndlp);
}
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT;
spin_unlock_irq(shost->host_lock);
/* Start discovery - this should just do CLEAR_LA */
lpfc_disc_start(vport);
return 0;
fail:
return -ENXIO;
}
static void
lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp = &rspiocb->iocb;
struct lpfc_nodelist *ndlp = cmdiocb->context1;
struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
struct serv_parm *sp;
int rc;
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
lpfc_nlp_put(ndlp);
goto out;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"FLOGI cmpl: status:x%x/x%x state:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
vport->port_state);
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
goto out;
/* FLOGI failed, so there is no fabric */
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
/* If private loop, then allow max outstanding els to be
* LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
* alpa map would take too long otherwise.
*/
if (phba->alpa_map[0] == 0) {
phba->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
}
/* FLOGI failure */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0100 FLOGI failure Data: x%x x%x "
"x%x\n",
phba->brd_no, vport->vpi,
irsp->ulpStatus, irsp->un.ulpWord[4],
irsp->ulpTimeout);
goto flogifail;
}
/*
* The FLogI succeeded. Sync the data for the CPU before
* accessing it.
*/
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
sp = prsp->virt + sizeof(uint32_t);
/* FLOGI completes successfully */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0101 FLOGI completes sucessfully "
"Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi,
irsp->un.ulpWord[4], sp->cmn.e_d_tov,
sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
if (vport->port_state == LPFC_FLOGI) {
/*
* If Common Service Parameters indicate Nport
* we are point to point, if Fport we are Fabric.
*/
if (sp->cmn.fPort)
rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
else
rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
if (!rc)
goto out;
}
flogifail:
lpfc_nlp_put(ndlp);
if (!lpfc_error_lost_link(irsp)) {
/* FLOGI failed, so just use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
}
static int
lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct serv_parm *sp;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
uint8_t *pcmd;
uint16_t cmdsize;
uint32_t tmo;
int rc;
pring = &phba->sli.ring[LPFC_ELS_RING];
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_FLOGI);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
/* For FLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cls1.classValid = 0;
sp->cls2.seqDelivery = 1;
sp->cls3.seqDelivery = 1;
if (sp->cmn.fcphLow < FC_PH3)
sp->cmn.fcphLow = FC_PH3;
if (sp->cmn.fcphHigh < FC_PH3)
sp->cmn.fcphHigh = FC_PH3;
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
sp->cmn.request_multiple_Nport = 1;
/* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
icmd->ulpCt_h = 1;
icmd->ulpCt_l = 0;
}
if (phba->fc_topology != TOPOLOGY_LOOP) {
icmd->un.elsreq64.myID = 0;
icmd->un.elsreq64.fl = 1;
}
tmo = phba->fc_ratov;
phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
lpfc_set_disctmo(vport);
phba->fc_ratov = tmo;
phba->fc_stat.elsXmitFLOGI++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FLOGI: opt:x%x",
phba->sli3_options, 0, 0);
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
int
lpfc_els_abort_flogi(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
struct lpfc_nodelist *ndlp;
IOCB_t *icmd;
/* Abort outstanding I/O on NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d:0201 Abort outstanding I/O on NPort x%x\n",
phba->brd_no, Fabric_DID);
pring = &phba->sli.ring[LPFC_ELS_RING];
/*
* Check the txcmplq for an iocb that matches the nport the driver is
* searching for.
*/
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
icmd = &iocb->iocb;
if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
icmd->un.elsreq64.bdl.ulpIoTag32) {
ndlp = (struct lpfc_nodelist *)(iocb->context1);
if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
}
}
}
spin_unlock_irq(&phba->hbalock);
return 0;
}
int
lpfc_initial_flogi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
/* First look for the Fabric ndlp */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return 0;
lpfc_nlp_init(vport, ndlp, Fabric_DID);
} else {
lpfc_dequeue_node(vport, ndlp);
}
if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
lpfc_nlp_put(ndlp);
}
return 1;
}
int
lpfc_initial_fdisc(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
/* First look for the Fabric ndlp */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return 0;
lpfc_nlp_init(vport, ndlp, Fabric_DID);
} else {
lpfc_dequeue_node(vport, ndlp);
}
if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
lpfc_nlp_put(ndlp);
}
return 1;
}
static void
lpfc_more_plogi(struct lpfc_vport *vport)
{
int sentplogi;
struct lpfc_hba *phba = vport->phba;
if (vport->num_disc_nodes)
vport->num_disc_nodes--;
/* Continue discovery with <num_disc_nodes> PLOGIs to go */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0232 Continue discovery with %d PLOGIs to go "
"Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi, vport->num_disc_nodes,
vport->fc_plogi_cnt, vport->fc_flag, vport->port_state);
/* Check to see if there are more PLOGIs to be sent */
if (vport->fc_flag & FC_NLP_MORE)
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
sentplogi = lpfc_els_disc_plogi(vport);
return;
}
static struct lpfc_nodelist *
lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_nodelist *new_ndlp;
struct serv_parm *sp;
uint8_t name[sizeof(struct lpfc_name)];
uint32_t rc;
/* Fabric nodes can have the same WWPN so we don't bother searching
* by WWPN. Just return the ndlp that was given to us.
*/
if (ndlp->nlp_type & NLP_FABRIC)
return ndlp;
sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
memset(name, 0, sizeof(struct lpfc_name));
/* Now we find out if the NPort we are logging into, matches the WWPN
* we have for that ndlp. If not, we have some work to do.
*/
new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
if (new_ndlp == ndlp)
return ndlp;
if (!new_ndlp) {
rc = memcmp(&ndlp->nlp_portname, name,
sizeof(struct lpfc_name));
if (!rc)
return ndlp;
new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
if (!new_ndlp)
return ndlp;
lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
}
lpfc_unreg_rpi(vport, new_ndlp);
new_ndlp->nlp_DID = ndlp->nlp_DID;
new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
/* Move this back to NPR state */
if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0)
lpfc_drop_node(vport, ndlp);
else {
lpfc_unreg_rpi(vport, ndlp);
ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
return new_ndlp;
}
static void
lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *prsp;
int disc, rc, did, type;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->context_un.rsp_iocb = rspiocb;
irsp = &rspiocb->iocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"PLOGI cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
irsp->un.elsreq64.remoteID);
ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
if (!ndlp) {
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0136 PLOGI completes to NPort x%x "
"with no ndlp. Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi, irsp->un.elsreq64.remoteID,
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpIoTag);
goto out;
}
/* Since ndlp can be freed in the disc state machine, note if this node
* is being used during discovery.
*/
spin_lock_irq(shost->host_lock);
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
rc = 0;
/* PLOGI completes to NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0102 PLOGI completes to NPort x%x "
"Data: x%x x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, ndlp->nlp_DID,
irsp->ulpStatus, irsp->un.ulpWord[4],
irsp->ulpTimeout, disc, vport->num_disc_nodes);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
goto out;
}
/* ndlp could be freed in DSM, save these values now */
type = ndlp->nlp_type;
did = ndlp->nlp_DID;
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
}
goto out;
}
/* PLOGI failed */
if (ndlp->nlp_DID == NameServer_DID) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0250 Nameserver login error: "
"0x%x / 0x%x\n",
phba->brd_no, vport->vpi,
irsp->ulpStatus, irsp->un.ulpWord[4]);
}
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (lpfc_error_lost_link(irsp)) {
rc = NLP_STE_FREED_NODE;
} else {
rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PLOGI);
}
} else {
/* Good status, call state machine */
prsp = list_entry(((struct lpfc_dmabuf *)
cmdiocb->context2)->list.next,
struct lpfc_dmabuf, list);
ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PLOGI);
}
if (disc && vport->num_disc_nodes) {
/* Check to see if there are more PLOGIs to be sent */
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
if (vport->fc_flag & FC_RSCN_MODE) {
/*
* Check to see if more RSCNs came in while
* we were processing this one.
*/
if ((vport->fc_rscn_id_cnt == 0) &&
(!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
} else {
lpfc_els_handle_rscn(vport);
}
}
}
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct serv_parm *sp;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int ret;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, NULL, did,
ELS_CMD_PLOGI);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
/* For PLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
if (sp->cmn.fcphLow < FC_PH_4_3)
sp->cmn.fcphLow = FC_PH_4_3;
if (sp->cmn.fcphHigh < FC_PH3)
sp->cmn.fcphHigh = FC_PH3;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PLOGI: did:x%x",
did, 0, 0);
phba->fc_stat.elsXmitPLOGI++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
ret = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (ret == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static void
lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_sli *psli;
struct lpfc_nodelist *ndlp;
psli = &phba->sli;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->context_un.rsp_iocb = rspiocb;
irsp = &(rspiocb->iocb);
ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_PRLI_SND;
spin_unlock_irq(shost->host_lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"PRLI cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
ndlp->nlp_DID);
/* PRLI completes to NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0103 PRLI completes to NPort x%x "
"Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, ndlp->nlp_DID,
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
vport->num_disc_nodes);
vport->fc_prli_sent--;
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport))
goto out;
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
goto out;
}
/* PRLI failed */
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (lpfc_error_lost_link(irsp)) {
goto out;
} else {
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PRLI);
}
} else {
/* Good status, call state machine */
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PRLI);
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
PRLI *npr;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_PRLI);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
/* For PRLI request, remainder of payload is service parameters */
memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
*((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
pcmd += sizeof(uint32_t);
/* For PRLI, remainder of payload is PRLI parameter page */
npr = (PRLI *) pcmd;
/*
* If our firmware version is 3.20 or later,
* set the following bits for FC-TAPE support.
*/
if (phba->vpd.rev.feaLevelHigh >= 0x02) {
npr->ConfmComplAllowed = 1;
npr->Retry = 1;
npr->TaskRetryIdReq = 1;
}
npr->estabImagePair = 1;
npr->readXferRdyDis = 1;
/* For FCP support */
npr->prliType = PRLI_FCP_TYPE;
npr->initiatorFunc = 1;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PRLI: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitPRLI++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_PRLI_SND;
spin_unlock_irq(shost->host_lock);
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_PRLI_SND;
spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
vport->fc_prli_sent++;
return 0;
}
static void
lpfc_more_adisc(struct lpfc_vport *vport)
{
int sentadisc;
struct lpfc_hba *phba = vport->phba;
if (vport->num_disc_nodes)
vport->num_disc_nodes--;
/* Continue discovery with <num_disc_nodes> ADISCs to go */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0210 Continue discovery with %d ADISCs to go "
"Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi, vport->num_disc_nodes,
vport->fc_adisc_cnt, vport->fc_flag, vport->port_state);
/* Check to see if there are more ADISCs to be sent */
if (vport->fc_flag & FC_NLP_MORE) {
lpfc_set_disctmo(vport);
/* go thru NPR nodes and issue any remaining ELS ADISCs */
sentadisc = lpfc_els_disc_adisc(vport);
}
return;
}
static void
lpfc_rscn_disc(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
lpfc_can_disctmo(vport);
/* RSCN discovery */
/* go thru NPR nodes and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
if (lpfc_els_disc_plogi(vport))
return;
if (vport->fc_flag & FC_RSCN_MODE) {
/* Check to see if more RSCNs came in while we were
* processing this one.
*/
if ((vport->fc_rscn_id_cnt == 0) &&
(!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
} else {
lpfc_els_handle_rscn(vport);
}
}
}
static void
lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_nodelist *ndlp;
int disc;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->context_un.rsp_iocb = rspiocb;
irsp = &(rspiocb->iocb);
ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"ADISC cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
ndlp->nlp_DID);
/* Since ndlp can be freed in the disc state machine, note if this node
* is being used during discovery.
*/
spin_lock_irq(shost->host_lock);
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
spin_unlock_irq(shost->host_lock);
/* ADISC completes to NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0104 ADISC completes to NPort x%x "
"Data: x%x x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, ndlp->nlp_DID,
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
disc, vport->num_disc_nodes);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
goto out;
}
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
lpfc_set_disctmo(vport);
}
goto out;
}
/* ADISC failed */
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (!lpfc_error_lost_link(irsp)) {
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_ADISC);
}
} else {
/* Good status, call state machine */
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_ADISC);
}
if (disc && vport->num_disc_nodes) {
/* Check to see if there are more ADISCs to be sent */
lpfc_more_adisc(vport);
/* Check to see if we are done with ADISC authentication */
if (vport->num_disc_nodes == 0) {
/* If we get here, there is nothing left to ADISC */
/*
* For NPIV, cmpl_reg_vpi will set port_state to READY,
* and continue discovery.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->fc_flag & FC_RSCN_MODE)) {
lpfc_issue_reg_vpi(phba, vport);
goto out;
}
/*
* For SLI2, we need to set port_state to READY
* and continue discovery.
*/
if (vport->port_state < LPFC_VPORT_READY) {
/* If we get here, there is nothing to ADISC */
if (vport->port_type == LPFC_PHYSICAL_PORT)
lpfc_issue_clear_la(phba, vport);
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
vport->num_disc_nodes = 0;
/* go thru NPR list, issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &=
~FC_NDISC_ACTIVE;
spin_unlock_irq(
shost->host_lock);
lpfc_can_disctmo(vport);
}
}
vport->port_state = LPFC_VPORT_READY;
} else {
lpfc_rscn_disc(vport);
}
}
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
ADISC *ap;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
uint8_t *pcmd;
uint16_t cmdsize;
cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ADISC);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
/* For ADISC request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
pcmd += sizeof(uint32_t);
/* Fill in ADISC payload */
ap = (ADISC *) pcmd;
ap->hardAL_PA = phba->fc_pref_ALPA;
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ap->DID = be32_to_cpu(vport->fc_myDID);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue ADISC: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitADISC++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_ADISC_SND;
spin_unlock_irq(shost->host_lock);
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_ADISC_SND;
spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static void
lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_vport *vport = ndlp->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_sli *psli;
psli = &phba->sli;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->context_un.rsp_iocb = rspiocb;
irsp = &(rspiocb->iocb);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
spin_unlock_irq(shost->host_lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"LOGO cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
ndlp->nlp_DID);
/* LOGO completes to NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0105 LOGO completes to NPort x%x "
"Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, ndlp->nlp_DID,
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout,
vport->num_disc_nodes);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport))
goto out;
if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
/* NLP_EVT_DEVICE_RM should unregister the RPI
* which should abort all outstanding IOs.
*/
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
goto out;
}
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
/* ELS command is being retried */
goto out;
/* LOGO failed */
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (lpfc_error_lost_link(irsp))
goto out;
else
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_LOGO);
} else {
/* Good status, call state machine.
* This will unregister the rpi if needed.
*/
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_LOGO);
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING];
cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_LOGO);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
pcmd += sizeof(uint32_t);
/* Fill in LOGO payload */
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue LOGO: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitLOGO++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_LOGO_SND;
spin_unlock_irq(shost->host_lock);
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static void
lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
irsp = &rspiocb->iocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"ELS cmd cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
irsp->un.elsreq64.remoteID);
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0106 ELS cmd tag x%x completes Data: x%x x%x "
"x%x\n",
phba->brd_no, vport->vpi,
irsp->ulpIoTag, irsp->ulpStatus,
irsp->un.ulpWord[4], irsp->ulpTimeout);
/* Check to see if link went down during discovery */
lpfc_els_chk_latt(vport);
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
struct lpfc_nodelist *ndlp;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = (sizeof(uint32_t) + sizeof(SCR));
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return 1;
lpfc_nlp_init(vport, ndlp, nportid);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_SCR);
if (!elsiocb) {
lpfc_nlp_put(ndlp);
return 1;
}
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_SCR;
pcmd += sizeof(uint32_t);
/* For SCR, remainder of payload is SCR parameter page */
memset(pcmd, 0, sizeof(SCR));
((SCR *) pcmd)->Function = SCR_FUNC_FULL;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue SCR: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitSCR++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
lpfc_nlp_put(ndlp);
return 0;
}
static int
lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
FARP *fp;
uint8_t *pcmd;
uint32_t *lp;
uint16_t cmdsize;
struct lpfc_nodelist *ondlp;
struct lpfc_nodelist *ndlp;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = (sizeof(uint32_t) + sizeof(FARP));
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return 1;
lpfc_nlp_init(vport, ndlp, nportid);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_RNID);
if (!elsiocb) {
lpfc_nlp_put(ndlp);
return 1;
}
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
pcmd += sizeof(uint32_t);
/* Fill in FARPR payload */
fp = (FARP *) (pcmd);
memset(fp, 0, sizeof(FARP));
lp = (uint32_t *) pcmd;
*lp++ = be32_to_cpu(nportid);
*lp++ = be32_to_cpu(vport->fc_myDID);
fp->Rflags = 0;
fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ondlp = lpfc_findnode_did(vport, nportid);
if (ondlp) {
memcpy(&fp->OportName, &ondlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
sizeof(struct lpfc_name));
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FARPR: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitFARPR++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
lpfc_nlp_put(ndlp);
return 0;
}
static void
lpfc_end_rscn(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (vport->fc_flag & FC_RSCN_MODE) {
/*
* Check to see if more RSCNs came in while we were
* processing this one.
*/
if (vport->fc_rscn_id_cnt ||
(vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
lpfc_els_handle_rscn(vport);
else {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
}
}
}
void
lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
nlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(shost->host_lock);
del_timer_sync(&nlp->nlp_delayfunc);
nlp->nlp_last_elscmd = 0;
if (!list_empty(&nlp->els_retry_evt.evt_listp))
list_del_init(&nlp->els_retry_evt.evt_listp);
if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(shost->host_lock);
nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
if (vport->num_disc_nodes) {
/* Check to see if there are more
* PLOGIs to be sent
*/
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
}
return;
}
void
lpfc_els_retry_delay(unsigned long ptr)
{
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_hba *phba = vport->phba;
unsigned long flags;
struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
ndlp = (struct lpfc_nodelist *) ptr;
phba = ndlp->vport->phba;
evtp = &ndlp->els_retry_evt;
spin_lock_irqsave(&phba->hbalock, flags);
if (!list_empty(&evtp->evt_listp)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
evtp->evt_arg1 = ndlp;
evtp->evt = LPFC_EVT_ELS_RETRY;
list_add_tail(&evtp->evt_listp, &phba->work_list);
if (phba->work_wait)
lpfc_worker_wake_up(phba);
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
void
lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport = ndlp->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
uint32_t cmd, did, retry;
spin_lock_irq(shost->host_lock);
did = ndlp->nlp_DID;
cmd = ndlp->nlp_last_elscmd;
ndlp->nlp_last_elscmd = 0;
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
spin_unlock_irq(shost->host_lock);
return;
}
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(shost->host_lock);
/*
* If a discovery event readded nlp_delayfunc after timer
* firing and before processing the timer, cancel the
* nlp_delayfunc.
*/
del_timer_sync(&ndlp->nlp_delayfunc);
retry = ndlp->nlp_retry;
switch (cmd) {
case ELS_CMD_FLOGI:
lpfc_issue_els_flogi(vport, ndlp, retry);
break;
case ELS_CMD_PLOGI:
if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
}
break;
case ELS_CMD_ADISC:
if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
}
break;
case ELS_CMD_PRLI:
if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
}
break;
case ELS_CMD_LOGO:
if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
break;
case ELS_CMD_FDISC:
lpfc_issue_els_fdisc(vport, ndlp, retry);
break;
}
return;
}
static int
lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp = &rspiocb->iocb;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
uint32_t *elscmd;
struct ls_rjt stat;
int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
uint32_t cmd = 0;
uint32_t did;
/* Note: context2 may be 0 for internal driver abort
* of delays ELS command.
*/
if (pcmd && pcmd->virt) {
elscmd = (uint32_t *) (pcmd->virt);
cmd = *elscmd++;
}
if (ndlp)
did = ndlp->nlp_DID;
else {
/* We should only hit this case for retrying PLOGI */
did = irsp->un.elsreq64.remoteID;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp && (cmd != ELS_CMD_PLOGI))
return 1;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Retry ELS: wd7:x%x wd4:x%x did:x%x",
*(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
switch (irsp->ulpStatus) {
case IOSTAT_FCP_RSP_ERROR:
case IOSTAT_REMOTE_STOP:
break;
case IOSTAT_LOCAL_REJECT:
switch ((irsp->un.ulpWord[4] & 0xff)) {
case IOERR_LOOP_OPEN_FAILURE:
if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
delay = 1000;
retry = 1;
break;
case IOERR_ILLEGAL_COMMAND:
if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) &&
(cmd == ELS_CMD_FDISC)) {
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0124 FDISC failed (3/6) retrying...\n",
phba->brd_no, vport->vpi);
lpfc_mbx_unreg_vpi(vport);
retry = 1;
/* Always retry for this case */
cmdiocb->retry = 0;
}
break;
case IOERR_NO_RESOURCES:
retry = 1;
if (cmdiocb->retry > 100)
delay = 100;
maxretry = 250;
break;
case IOERR_ILLEGAL_FRAME:
delay = 100;
retry = 1;
break;
case IOERR_SEQUENCE_TIMEOUT:
case IOERR_INVALID_RPI:
retry = 1;
break;
}
break;
case IOSTAT_NPORT_RJT:
case IOSTAT_FABRIC_RJT:
if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
retry = 1;
break;
}
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
retry = 1;
break;
case IOSTAT_LS_RJT:
stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
/* Added for Vendor specifc support
* Just keep retrying for these Rsn / Exp codes
*/
switch (stat.un.b.lsRjtRsnCode) {
case LSRJT_UNABLE_TPC:
if (stat.un.b.lsRjtRsnCodeExp ==
LSEXP_CMD_IN_PROGRESS) {
if (cmd == ELS_CMD_PLOGI) {
delay = 1000;
maxretry = 48;
}
retry = 1;
break;
}
if (cmd == ELS_CMD_PLOGI) {
delay = 1000;
maxretry = lpfc_max_els_tries + 1;
retry = 1;
break;
}
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(cmd == ELS_CMD_FDISC) &&
(stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0125 FDISC Failed (x%x)."
" Fabric out of resources\n",
phba->brd_no, vport->vpi, stat.un.lsRjtError);
lpfc_vport_set_state(vport,
FC_VPORT_NO_FABRIC_RSCS);
}
break;
case LSRJT_LOGICAL_BSY:
if ((cmd == ELS_CMD_PLOGI) ||
(cmd == ELS_CMD_PRLI)) {
delay = 1000;
maxretry = 48;
} else if (cmd == ELS_CMD_FDISC) {
/* Always retry for this case */
cmdiocb->retry = 0;
}
retry = 1;
break;
case LSRJT_LOGICAL_ERR:
case LSRJT_PROTOCOL_ERR:
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(cmd == ELS_CMD_FDISC) &&
((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
(stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
) {
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0123 FDISC Failed (x%x)."
" Fabric Detected Bad WWN\n",
phba->brd_no, vport->vpi, stat.un.lsRjtError);
lpfc_vport_set_state(vport,
FC_VPORT_FABRIC_REJ_WWN);
}
break;
}
break;
case IOSTAT_INTERMED_RSP:
case IOSTAT_BA_RJT:
break;
default:
break;
}
if (did == FDMI_DID)
retry = 1;
if ((++cmdiocb->retry) >= maxretry) {
phba->fc_stat.elsRetryExceeded++;
retry = 0;
}
if ((vport->load_flag & FC_UNLOADING) != 0)
retry = 0;
if (retry) {
/* Retry ELS command <elsCmd> to remote NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0107 Retry ELS command x%x to remote "
"NPORT x%x Data: x%x x%x\n",
phba->brd_no, vport->vpi,
cmd, did, cmdiocb->retry, delay);
if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) {
/* Don't reset timer for no resources */
/* If discovery / RSCN timer is running, reset it */
if (timer_pending(&vport->fc_disctmo) ||
(vport->fc_flag & FC_RSCN_MODE))
lpfc_set_disctmo(vport);
}
phba->fc_stat.elsXmitRetry++;
if (ndlp && delay) {
phba->fc_stat.elsDelayRetry++;
ndlp->nlp_retry = cmdiocb->retry;
/* delay is specified in milliseconds */
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(delay));
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(shost->host_lock);
ndlp->nlp_prev_state = ndlp->nlp_state;
if (cmd == ELS_CMD_PRLI)
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_REG_LOGIN_ISSUE);
else
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_NPR_NODE);
ndlp->nlp_last_elscmd = cmd;
return 1;
}
switch (cmd) {
case ELS_CMD_FLOGI:
lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_FDISC:
lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_PLOGI:
if (ndlp) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PLOGI_ISSUE);
}
lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
return 1;
case ELS_CMD_ADISC:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_PRLI:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_LOGO:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
return 1;
}
}
/* No retry ELS command <elsCmd> to remote NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0108 No retry ELS command x%x to remote "
"NPORT x%x Data: x%x\n",
phba->brd_no, vport->vpi,
cmd, did, cmdiocb->retry);
return 0;
}
int
lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
{
struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
if (elsiocb->context1) {
lpfc_nlp_put(elsiocb->context1);
elsiocb->context1 = NULL;
}
/* context2 = cmd, context2->next = rsp, context3 = bpl */
if (elsiocb->context2) {
buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
/* Free the response before processing the command. */
if (!list_empty(&buf_ptr1->list)) {
list_remove_head(&buf_ptr1->list, buf_ptr,
struct lpfc_dmabuf,
list);
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
kfree(buf_ptr1);
}
if (elsiocb->context3) {
buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
lpfc_sli_release_iocbq(phba, elsiocb);
return 0;
}
static void
lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
irsp = &rspiocb->iocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"ACC LOGO cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
/* ACC to LOGO completes to NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0109 ACC to LOGO completes to NPort x%x "
"Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
switch (ndlp->nlp_state) {
case NLP_STE_UNUSED_NODE: /* node is just allocated */
lpfc_drop_node(vport, ndlp);
break;
case NLP_STE_NPR_NODE: /* NPort Recovery mode */
lpfc_unreg_rpi(vport, ndlp);
break;
default:
break;
}
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
void
lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
lpfc_nlp_put(ndlp);
return;
}
static void
lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
IOCB_t *irsp;
LPFC_MBOXQ_t *mbox = NULL;
struct lpfc_dmabuf *mp = NULL;
irsp = &rspiocb->iocb;
if (cmdiocb->context_un.mbox)
mbox = cmdiocb->context_un.mbox;
/* Check to see if link went down during discovery */
if (!ndlp || lpfc_els_chk_latt(vport)) {
if (mbox) {
mp = (struct lpfc_dmabuf *) mbox->context1;
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
goto out;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"ACC cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4],
irsp->un.rcvels.remoteID);
/* ELS response tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0110 ELS response tag x%x completes "
"Data: x%x x%x x%x x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi,
cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
if (mbox) {
if ((rspiocb->iocb.ulpStatus == 0)
&& (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
lpfc_unreg_rpi(vport, ndlp);
mbox->context2 = lpfc_nlp_get(ndlp);
mbox->vport = vport;
if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
}
else {
mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_REG_LOGIN_ISSUE);
}
if (lpfc_sli_issue_mbox(phba, mbox,
(MBX_NOWAIT | MBX_STOP_IOCB))
!= MBX_NOT_FINISHED) {
goto out;
}
lpfc_nlp_put(ndlp);
/* NOTE: we should have messages for unsuccessful
reglogin */
} else {
/* Do not drop node for lpfc_els_abort'ed ELS cmds */
if (!lpfc_error_lost_link(irsp) &&
ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
lpfc_drop_node(vport, ndlp);
ndlp = NULL;
}
}
mp = (struct lpfc_dmabuf *) mbox->context1;
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
out:
if (ndlp) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
spin_unlock_irq(shost->host_lock);
}
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
int
lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
LPFC_MBOXQ_t *mbox, uint8_t newnode)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
IOCB_t *oldcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
ELS_PKT *els_pkt_ptr;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
oldcmd = &oldiocb->iocb;
switch (flag) {
case ELS_CMD_ACC:
cmdsize = sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
spin_unlock_irq(shost->host_lock);
return 1;
}
icmd = &elsiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
case ELS_CMD_PLOGI:
cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
if (mbox)
elsiocb->context_un.mbox = mbox;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC PLOGI: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
case ELS_CMD_PRLO:
cmdsize = sizeof(uint32_t) + sizeof(PRLO);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
sizeof(uint32_t) + sizeof(PRLO));
*((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
els_pkt_ptr = (ELS_PKT *) pcmd;
els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC PRLO: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
default:
return 1;
}
if (newnode) {
lpfc_nlp_put(ndlp);
elsiocb->context1 = NULL;
}
/* Xmit ELS ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
"DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n",
phba->brd_no, vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
if (ndlp->nlp_flag & NLP_LOGO_ACC) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
spin_unlock_irq(shost->host_lock);
elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
} else {
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
}
phba->fc_stat.elsXmitACC++;
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
int
lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
LPFC_MBOXQ_t *mbox)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
IOCB_t *oldcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = 2 * sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_LS_RJT);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
pcmd += sizeof(uint32_t);
*((uint32_t *) (pcmd)) = rejectError;
if (mbox) {
elsiocb->context_un.mbox = mbox;
elsiocb->context1 = lpfc_nlp_get(ndlp);
}
/* Xmit ELS RJT <err> response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0129 Xmit ELS RJT x%x response tag x%x "
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
"rpi x%x\n",
phba->brd_no, vport->vpi, rejectError, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue LS_RJT: did:x%x flg:x%x err:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
phba->fc_stat.elsXmitLSRJT++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
int
lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
ADISC *ap;
IOCB_t *icmd, *oldcmd;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
cmdsize = sizeof(uint32_t) + sizeof(ADISC);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
/* Xmit ADISC ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0130 Xmit ADISC ACC response iotag x%x xri: "
"x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
phba->brd_no, vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
ap = (ADISC *) (pcmd);
ap->hardAL_PA = phba->fc_pref_ALPA;
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ap->DID = be32_to_cpu(vport->fc_myDID);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC ADISC: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
phba->fc_stat.elsXmitACC++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
int
lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
PRLI *npr;
lpfc_vpd_t *vpd;
IOCB_t *icmd;
IOCB_t *oldcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
cmdsize = sizeof(uint32_t) + sizeof(PRLI);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
/* Xmit PRLI ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0131 Xmit PRLI ACC response tag x%x xri x%x, "
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
phba->brd_no, vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
pcmd += sizeof(uint32_t);
/* For PRLI, remainder of payload is PRLI parameter page */
memset(pcmd, 0, sizeof(PRLI));
npr = (PRLI *) pcmd;
vpd = &phba->vpd;
/*
* If our firmware version is 3.20 or later,
* set the following bits for FC-TAPE support.
*/
if (vpd->rev.feaLevelHigh >= 0x02) {
npr->ConfmComplAllowed = 1;
npr->Retry = 1;
npr->TaskRetryIdReq = 1;
}
npr->acceptRspCode = PRLI_REQ_EXECUTED;
npr->estabImagePair = 1;
npr->readXferRdyDis = 1;
npr->ConfmComplAllowed = 1;
npr->prliType = PRLI_FCP_TYPE;
npr->initiatorFunc = 1;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC PRLI: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
phba->fc_stat.elsXmitACC++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static int
lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
RNID *rn;
IOCB_t *icmd, *oldcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING];
cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
+ (2 * sizeof(struct lpfc_name));
if (format)
cmdsize += sizeof(RNID_TOP_DISC);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
/* Xmit RNID ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0132 Xmit RNID ACC response tag x%x "
"xri x%x\n",
phba->brd_no, vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext);
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
memset(pcmd, 0, sizeof(RNID));
rn = (RNID *) (pcmd);
rn->Format = format;
rn->CommonLen = (2 * sizeof(struct lpfc_name));
memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
switch (format) {
case 0:
rn->SpecificLen = 0;
break;
case RNID_TOPOLOGY_DISC:
rn->SpecificLen = sizeof(RNID_TOP_DISC);
memcpy(&rn->un.topologyDisc.portName,
&vport->fc_portname, sizeof(struct lpfc_name));
rn->un.topologyDisc.unitType = RNID_HBA;
rn->un.topologyDisc.physPort = 0;
rn->un.topologyDisc.attachedNodes = 0;
break;
default:
rn->CommonLen = 0;
rn->SpecificLen = 0;
break;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC RNID: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
phba->fc_stat.elsXmitACC++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
lpfc_nlp_put(ndlp);
elsiocb->context1 = NULL; /* Don't need ndlp for cmpl,
* it could be freed */
rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
int
lpfc_els_disc_adisc(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
int sentadisc = 0;
/* go thru NPR nodes and issue any remaining ELS ADISCs */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
(ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
(ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(shost->host_lock);
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
lpfc_issue_els_adisc(vport, ndlp, 0);
sentadisc++;
vport->num_disc_nodes++;
if (vport->num_disc_nodes >=
vport->phba->cfg_discovery_threads) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
break;
}
}
}
if (sentadisc == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
}
return sentadisc;
}
int
lpfc_els_disc_plogi(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
int sentplogi = 0;
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
(ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
(ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
(ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
sentplogi++;
vport->num_disc_nodes++;
if (vport->num_disc_nodes >=
vport->phba->cfg_discovery_threads) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
break;
}
}
}
if (sentplogi == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
}
return sentplogi;
}
void
lpfc_els_flush_rscn(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
int i;
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
vport->fc_rscn_id_list[i] = NULL;
}
spin_lock_irq(shost->host_lock);
vport->fc_rscn_id_cnt = 0;
vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
int
lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
{
D_ID ns_did;
D_ID rscn_did;
uint32_t *lp;
uint32_t payload_len, i;
struct lpfc_hba *phba = vport->phba;
ns_did.un.word = did;
/* Never match fabric nodes for RSCNs */
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
return 0;
/* If we are doing a FULL RSCN rediscovery, match everything */
if (vport->fc_flag & FC_RSCN_DISCOVERY)
return did;
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
lp = vport->fc_rscn_id_list[i]->virt;
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
payload_len -= sizeof(uint32_t); /* take off word 0 */
while (payload_len) {
rscn_did.un.word = be32_to_cpu(*lp++);
payload_len -= sizeof(uint32_t);
switch (rscn_did.un.b.resv) {
case 0: /* Single N_Port ID effected */
if (ns_did.un.word == rscn_did.un.word)
return did;
break;
case 1: /* Whole N_Port Area effected */
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
&& (ns_did.un.b.area == rscn_did.un.b.area))
return did;
break;
case 2: /* Whole N_Port Domain effected */
if (ns_did.un.b.domain == rscn_did.un.b.domain)
return did;
break;
default:
/* Unknown Identifier in RSCN node */
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"%d (%d):0217 Unknown "
"Identifier in RSCN payload "
"Data: x%x\n",
phba->brd_no, vport->vpi,
rscn_did.un.word);
case 3: /* Whole Fabric effected */
return did;
}
}
}
return 0;
}
static int
lpfc_rscn_recovery_check(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp = NULL;
/* Look at all nodes effected by pending RSCNs and move
* them to NPR state.
*/
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE ||
lpfc_rscn_payload_check(vport, ndlp->nlp_DID) == 0)
continue;
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
/*
* Make sure NLP_DELAY_TMO is NOT running after a device
* recovery event.
*/
if (ndlp->nlp_flag & NLP_DELAY_TMO)
lpfc_cancel_retry_delay_tmo(vport, ndlp);
}
return 0;
}
static int
lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp, uint8_t newnode)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
struct lpfc_vport *next_vport;
uint32_t *lp, *datap;
IOCB_t *icmd;
uint32_t payload_len, length, nportid, *cmd;
int rscn_cnt = vport->fc_rscn_id_cnt;
int rscn_id = 0, hba_id = 0;
int i;
icmd = &cmdiocb->iocb;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
payload_len -= sizeof(uint32_t); /* take off word 0 */
/* RSCN received */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0214 RSCN received Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, vport->fc_flag, payload_len,
*lp, rscn_cnt);
for (i = 0; i < payload_len/sizeof(uint32_t); i++)
fc_host_post_event(shost, fc_get_event_number(),
FCH_EVT_RSCN, lp[i]);
/* If we are about to begin discovery, just ACC the RSCN.
* Discovery processing will satisfy it.
*/
if (vport->port_state <= LPFC_NS_QRY) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
newnode);
return 0;
}
/* If this RSCN just contains NPortIDs for other vports on this HBA,
* just ACC and ignore it.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(phba->cfg_peer_port_login)) {
i = payload_len;
datap = lp;
while (i > 0) {
nportid = *datap++;
nportid = ((be32_to_cpu(nportid)) & Mask_DID);
i -= sizeof(uint32_t);
rscn_id++;
list_for_each_entry(next_vport, &phba->port_list,
listentry) {
if (nportid == next_vport->fc_myDID) {
hba_id++;
break;
}
}
}
if (rscn_id == hba_id) {
/* ALL NPortIDs in RSCN are on HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0214 Ignore RSCN Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi, vport->fc_flag, payload_len,
*lp, rscn_cnt);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state,
ndlp->nlp_flag);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
ndlp, NULL, newnode);
return 0;
}
}
/* If we are already processing an RSCN, save the received
* RSCN payload buffer, cmdiocb->context2 to process later.
*/
if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
vport->fc_flag |= FC_RSCN_DEFERRED;
if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
!(vport->fc_flag & FC_RSCN_DISCOVERY)) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
if (rscn_cnt) {
cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
}
if ((rscn_cnt) &&
(payload_len + length <= LPFC_BPL_SIZE)) {
*cmd &= ELS_CMD_MASK;
*cmd |= be32_to_cpu(payload_len + length);
memcpy(((uint8_t *)cmd) + length, lp,
payload_len);
} else {
vport->fc_rscn_id_list[rscn_cnt] = pcmd;
vport->fc_rscn_id_cnt++;
/* If we zero, cmdiocb->context2, the calling
* routine will not try to free it.
*/
cmdiocb->context2 = NULL;
}
/* Deferred RSCN */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0235 Deferred RSCN "
"Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi,
vport->fc_rscn_id_cnt, vport->fc_flag,
vport->port_state);
} else {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_DISCOVERY;
spin_unlock_irq(shost->host_lock);
/* ReDiscovery RSCN */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0234 ReDiscovery RSCN "
"Data: x%x x%x x%x\n",
phba->brd_no, vport->vpi,
vport->fc_rscn_id_cnt, vport->fc_flag,
vport->port_state);
}
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
newnode);
/* send RECOVERY event for ALL nodes that match RSCN payload */
lpfc_rscn_recovery_check(vport);
vport->fc_flag &= ~FC_RSCN_DEFERRED;
return 0;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
/*
* If we zero, cmdiocb->context2, the calling routine will
* not try to free it.
*/
cmdiocb->context2 = NULL;
lpfc_set_disctmo(vport);
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
/* send RECOVERY event for ALL nodes that match RSCN payload */
lpfc_rscn_recovery_check(vport);
return lpfc_els_handle_rscn(vport);
}
int
lpfc_els_handle_rscn(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
struct lpfc_hba *phba = vport->phba;
/* Ignore RSCN if the port is being torn down. */
if (vport->load_flag & FC_UNLOADING) {
lpfc_els_flush_rscn(vport);
return 0;
}
/* Start timer for RSCN processing */
lpfc_set_disctmo(vport);
/* RSCN processed */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"%d (%d):0215 RSCN processed Data: x%x x%x x%x x%x\n",
phba->brd_no, vport->vpi,
vport->fc_flag, 0, vport->fc_rscn_id_cnt,
vport->port_state);
/* To process RSCN, first compare RSCN data with NameServer */
vport->fc_ns_retry = 0;
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
/* Good ndlp, issue CT Request to NameServer */
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
/* Wait for NameServer query cmpl before we can
continue */
return 1;
} else {
/* If login to NameServer does not exist, issue one */
/* Good status, issue PLOGI to NameServer */
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (ndlp)
/* Wait for NameServer login cmpl before we can
continue */
return 1;
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp) {
lpfc_els_flush_rscn(vport);
return 0;
} else {
lpfc_nlp_init(vport, ndlp, NameServer_DID);
ndlp->nlp_type |= NLP_FABRIC;
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, NameServer_DID, 0);
/* Wait for NameServer login cmpl before we can
continue */
return 1;
}
}
lpfc_els_flush_rscn(vport);
return 0;
}
static int
lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp, uint8_t newnode)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
uint32_t *lp = (uint32_t *) pcmd->virt;
IOCB_t *icmd = &cmdiocb->iocb;
struct serv_parm *sp;
LPFC_MBOXQ_t *mbox;
struct ls_rjt stat;
uint32_t cmd, did;
int rc;
cmd = *lp++;
sp = (struct serv_parm *) lp;
/* FLOGI received */
lpfc_set_disctmo(vport);
if (phba->fc_topology == TOPOLOGY_LOOP) {
/* We should never receive a FLOGI in loop mode, ignore it */
did = icmd->un.elsreq64.remoteID;
/* An FLOGI ELS command <elsCmd> was received from DID <did> in
Loop Mode */
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0113 An FLOGI ELS command x%x was "
"received from DID x%x in Loop Mode\n",
phba->brd_no, vport->vpi, cmd, did);
return 1;
}
did = Fabric_DID;
if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) {
/* For a FLOGI we accept, then if our portname is greater
* then the remote portname we initiate Nport login.
*/
rc = memcmp(&vport->fc_portname, &sp->portName,
sizeof(struct lpfc_name));
if (!rc) {
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return 1;
lpfc_linkdown(phba);
lpfc_init_link(phba, mbox,
phba->cfg_topology,
phba->cfg_link_speed);
mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox
(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
}
return 1;
} else if (rc > 0) { /* greater than */
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT_PLOGI;
spin_unlock_irq(shost->host_lock);
}
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT;
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
} else {
/* Reject this request because invalid parameters */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
return 1;
}
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
return 0;
}
static int
lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
IOCB_t *icmd;
RNID *rn;
struct ls_rjt stat;
uint32_t cmd, did;
icmd = &cmdiocb->iocb;
did = icmd->un.elsreq64.remoteID;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
cmd = *lp++;
rn = (RNID *) lp;
/* RNID received */
switch (rn->Format) {
case 0:
case RNID_TOPOLOGY_DISC:
/* Send back ACC */
lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
break;
default:
/* Reject this request because format not supported */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
}
return 0;
}
static int
lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct ls_rjt stat;
/* For now, unconditionally reject this command */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
static void
lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
MAILBOX_t *mb;
IOCB_t *icmd;
RPS_RSP *rps_rsp;
uint8_t *pcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
uint16_t xri, status;
uint32_t cmdsize;
mb = &pmb->mb;
ndlp = (struct lpfc_nodelist *) pmb->context2;
xri = (uint16_t) ((unsigned long)(pmb->context1));
pmb->context1 = NULL;
pmb->context2 = NULL;
if (mb->mbxStatus) {
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
mempool_free(pmb, phba->mbox_mem_pool);
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
lpfc_max_els_tries, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
lpfc_nlp_put(ndlp);
if (!elsiocb)
return;
icmd = &elsiocb->iocb;
icmd->ulpContext = xri;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t); /* Skip past command */
rps_rsp = (RPS_RSP *)pcmd;
if (phba->fc_topology != TOPOLOGY_LOOP)
status = 0x10;
else
status = 0x8;
if (phba->pport->fc_flag & FC_FABRIC)
status |= 0x4;
rps_rsp->rsvd1 = 0;
rps_rsp->portStatus = be16_to_cpu(status);
rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
/* Xmit ELS RPS ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0118 Xmit ELS RPS ACC response tag x%x "
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
"rpi x%x\n",
phba->brd_no, ndlp->vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR)
lpfc_els_free_iocb(phba, elsiocb);
return;
}
static int
lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
uint32_t *lp;
uint8_t flag;
LPFC_MBOXQ_t *mbox;
struct lpfc_dmabuf *pcmd;
RPS *rps;
struct ls_rjt stat;
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
}
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
flag = (be32_to_cpu(*lp++) & 0xf);
rps = (RPS *) lp;
if ((flag == 0) ||
((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
sizeof(struct lpfc_name)) == 0))) {
printk("Fix me....\n");
dump_stack();
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
if (mbox) {
lpfc_read_lnk_stat(phba, mbox);
mbox->context1 =
(void *)((unsigned long) cmdiocb->iocb.ulpContext);
mbox->context2 = lpfc_nlp_get(ndlp);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
if (lpfc_sli_issue_mbox (phba, mbox,
(MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED)
/* Mbox completion will send ELS Response */
return 0;
lpfc_nlp_put(ndlp);
mempool_free(mbox, phba->mbox_mem_pool);
}
}
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
static int
lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd, *oldcmd;
RPL_RSP rpl_rsp;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
uint8_t *pcmd;
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint16_t);
*((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
pcmd += sizeof(uint16_t);
/* Setup the RPL ACC payload */
rpl_rsp.listLen = be32_to_cpu(1);
rpl_rsp.index = 0;
rpl_rsp.port_num_blk.portNum = 0;
rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
sizeof(struct lpfc_name));
memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
/* Xmit ELS RPL ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0120 Xmit ELS RPL ACC response tag x%x "
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
"rpi x%x\n",
phba->brd_no, vport->vpi, elsiocb->iotag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static int
lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
uint32_t maxsize;
uint16_t cmdsize;
RPL *rpl;
struct ls_rjt stat;
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
}
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
rpl = (RPL *) (lp + 1);
maxsize = be32_to_cpu(rpl->maxsize);
/* We support only one port */
if ((rpl->index == 0) &&
((maxsize == 0) ||
((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
} else {
cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
}
lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
return 0;
}
static int
lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
IOCB_t *icmd;
FARP *fp;
uint32_t cmd, cnt, did;
icmd = &cmdiocb->iocb;
did = icmd->un.elsreq64.remoteID;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
cmd = *lp++;
fp = (FARP *) lp;
/* FARP-REQ received from DID <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0601 FARP-REQ received from DID x%x\n",
phba->brd_no, vport->vpi, did);
/* We will only support match on WWPN or WWNN */
if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
return 0;
}
cnt = 0;
/* If this FARP command is searching for my portname */
if (fp->Mflags & FARP_MATCH_PORT) {
if (memcmp(&fp->RportName, &vport->fc_portname,
sizeof(struct lpfc_name)) == 0)
cnt = 1;
}
/* If this FARP command is searching for my nodename */
if (fp->Mflags & FARP_MATCH_NODE) {
if (memcmp(&fp->RnodeName, &vport->fc_nodename,
sizeof(struct lpfc_name)) == 0)
cnt = 1;
}
if (cnt) {
if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
(ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
/* Log back into the node before sending the FARP. */
if (fp->Rflags & FARP_REQUEST_PLOGI) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
/* Send a FARP response to that node */
if (fp->Rflags & FARP_REQUEST_FARPR)
lpfc_issue_els_farpr(vport, did, 0);
}
}
return 0;
}
static int
lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
IOCB_t *icmd;
uint32_t cmd, did;
struct lpfc_hba *phba = vport->phba;
icmd = &cmdiocb->iocb;
did = icmd->un.elsreq64.remoteID;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
cmd = *lp++;
/* FARP-RSP received from DID <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0600 FARP-RSP received from DID x%x\n",
phba->brd_no, vport->vpi, did);
/* ACCEPT the Farp resp request */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
return 0;
}
static int
lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *fan_ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
IOCB_t *icmd;
uint32_t cmd, did;
FAN *fp;
struct lpfc_nodelist *ndlp, *next_ndlp;
struct lpfc_hba *phba = vport->phba;
/* FAN received */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0265 FAN received\n",
phba->brd_no, vport->vpi);
icmd = &cmdiocb->iocb;
did = icmd->un.elsreq64.remoteID;
pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
lp = (uint32_t *)pcmd->virt;
cmd = *lp++;
fp = (FAN *) lp;
/* FAN received; Fan does not have a reply sequence */
if (phba->pport->port_state == LPFC_LOCAL_CFG_LINK) {
if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
sizeof(struct lpfc_name)) != 0) ||
(memcmp(&phba->fc_fabparam.portName, &fp->FportName,
sizeof(struct lpfc_name)) != 0)) {
/*
* This node has switched fabrics. FLOGI is required
* Clean up the old rpi's
*/
list_for_each_entry_safe(ndlp, next_ndlp,
&vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state != NLP_STE_NPR_NODE)
continue;
if (ndlp->nlp_type & NLP_FABRIC) {
/*
* Clean up old Fabric, Nameserver and
* other NLP_FABRIC logins
*/
lpfc_drop_node(vport, ndlp);
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding I/O now since this
* device is marked for PLOGI
*/
lpfc_unreg_rpi(vport, ndlp);
}
}
vport->port_state = LPFC_FLOGI;
lpfc_set_disctmo(vport);
lpfc_initial_flogi(vport);
return 0;
}
/* Discovery not needed,
* move the nodes to their original state.
*/
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
if (ndlp->nlp_state != NLP_STE_NPR_NODE)
continue;
switch (ndlp->nlp_prev_state) {
case NLP_STE_UNMAPPED_NODE:
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_UNMAPPED_NODE);
break;
case NLP_STE_MAPPED_NODE:
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_MAPPED_NODE);
break;
default:
break;
}
}
/* Start discovery - this should just do CLEAR_LA */
lpfc_disc_start(vport);
}
return 0;
}
void
lpfc_els_timeout(unsigned long ptr)
{
struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
struct lpfc_hba *phba = vport->phba;
unsigned long iflag;
spin_lock_irqsave(&vport->work_port_lock, iflag);
if ((vport->work_port_events & WORKER_ELS_TMO) == 0) {
vport->work_port_events |= WORKER_ELS_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->work_wait)
lpfc_worker_wake_up(phba);
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
else
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
return;
}
void
lpfc_els_timeout_handler(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *tmp_iocb, *piocb;
IOCB_t *cmd = NULL;
struct lpfc_dmabuf *pcmd;
uint32_t els_command = 0;
uint32_t timeout;
uint32_t remote_ID = 0xffffffff;
/* If the timer is already canceled do nothing */
if ((vport->work_port_events & WORKER_ELS_TMO) == 0) {
return;
}
spin_lock_irq(&phba->hbalock);
timeout = (uint32_t)(phba->fc_ratov << 1);
pring = &phba->sli.ring[LPFC_ELS_RING];
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
cmd = &piocb->iocb;
if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
continue;
if (piocb->vport != vport)
continue;
pcmd = (struct lpfc_dmabuf *) piocb->context2;
if (pcmd)
els_command = *(uint32_t *) (pcmd->virt);
if (els_command == ELS_CMD_FARP ||
els_command == ELS_CMD_FARPR ||
els_command == ELS_CMD_FDISC)
continue;
if (vport != piocb->vport)
continue;
if (piocb->drvrTimeout > 0) {
if (piocb->drvrTimeout >= timeout)
piocb->drvrTimeout -= timeout;
else
piocb->drvrTimeout = 0;
continue;
}
remote_ID = 0xffffffff;
if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
remote_ID = cmd->un.elsreq64.remoteID;
else {
struct lpfc_nodelist *ndlp;
ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
if (ndlp)
remote_ID = ndlp->nlp_DID;
}
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0127 ELS timeout Data: x%x x%x x%x "
"x%x\n",
phba->brd_no, vport->vpi, els_command,
remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
lpfc_sli_issue_abort_iotag(phba, pring, piocb);
}
spin_unlock_irq(&phba->hbalock);
if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
}
void
lpfc_els_flush_cmd(struct lpfc_vport *vport)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
struct lpfc_iocbq *tmp_iocb, *piocb;
IOCB_t *cmd = NULL;
lpfc_fabric_abort_vport(vport);
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
cmd = &piocb->iocb;
if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
continue;
}
/* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
cmd->ulpCommand == CMD_ABORT_XRI_CN)
continue;
if (piocb->vport != vport)
continue;
list_move_tail(&piocb->list, &completions);
pring->txq_cnt--;
}
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
continue;
}
if (piocb->vport != vport)
continue;
lpfc_sli_issue_abort_iotag(phba, pring, piocb);
}
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
piocb = list_get_first(&completions, struct lpfc_iocbq, list);
cmd = &piocb->iocb;
list_del_init(&piocb->list);
if (!piocb->iocb_cmpl)
lpfc_sli_release_iocbq(phba, piocb);
else {
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(piocb->iocb_cmpl) (phba, piocb, piocb);
}
}
return;
}
static void
lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
{
struct lpfc_nodelist *ndlp;
struct ls_rjt stat;
uint32_t *payload;
uint32_t cmd, did, newnode, rjt_err = 0;
IOCB_t *icmd = &elsiocb->iocb;
if (vport == NULL || elsiocb->context2 == NULL)
goto dropit;
newnode = 0;
payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
cmd = *payload;
if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
lpfc_post_buffer(phba, pring, 1, 1);
did = icmd->un.rcvels.remoteID;
if (icmd->ulpStatus) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV Unsol ELS: status:x%x/x%x did:x%x",
icmd->ulpStatus, icmd->un.ulpWord[4], did);
goto dropit;
}
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport))
goto dropit;
/* Ignore traffic recevied during vport shutdown. */
if (vport->load_flag & FC_UNLOADING)
goto dropit;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
goto dropit;
lpfc_nlp_init(vport, ndlp, did);
newnode = 1;
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
ndlp->nlp_type |= NLP_FABRIC;
}
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
}
phba->fc_stat.elsRcvFrame++;
if (elsiocb->context1)
lpfc_nlp_put(elsiocb->context1);
elsiocb->context1 = lpfc_nlp_get(ndlp);
elsiocb->vport = vport;
if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
cmd &= ELS_CMD_MASK;
}
/* ELS command <elsCmd> received from NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0112 ELS command x%x received from NPORT x%x "
"Data: x%x\n", phba->brd_no, vport->vpi, cmd, did,
vport->port_state);
switch (cmd) {
case ELS_CMD_PLOGI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PLOGI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPLOGI++;
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_PLOGI);
break;
case ELS_CMD_FLOGI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FLOGI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFLOGI++;
lpfc_els_rcv_flogi(vport, elsiocb, ndlp, newnode);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
case ELS_CMD_LOGO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV LOGO: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvLOGO++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
break;
case ELS_CMD_PRLO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PRLO: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPRLO++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
break;
case ELS_CMD_RSCN:
phba->fc_stat.elsRcvRSCN++;
lpfc_els_rcv_rscn(vport, elsiocb, ndlp, newnode);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
case ELS_CMD_ADISC:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV ADISC: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvADISC++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_ADISC);
break;
case ELS_CMD_PDISC:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PDISC: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPDISC++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_PDISC);
break;
case ELS_CMD_FARPR:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FARPR: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFARPR++;
lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
break;
case ELS_CMD_FARP:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FARP: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFARP++;
lpfc_els_rcv_farp(vport, elsiocb, ndlp);
break;
case ELS_CMD_FAN:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FAN: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFAN++;
lpfc_els_rcv_fan(vport, elsiocb, ndlp);
break;
case ELS_CMD_PRLI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PRLI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPRLI++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
break;
case ELS_CMD_LIRR:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV LIRR: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvLIRR++;
lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
case ELS_CMD_RPS:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RPS: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRPS++;
lpfc_els_rcv_rps(vport, elsiocb, ndlp);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
case ELS_CMD_RPL:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RPL: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRPL++;
lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
case ELS_CMD_RNID:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RNID: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRNID++;
lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
default:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
cmd, did, vport->port_state);
/* Unsupported ELS command, reject */
rjt_err = LSRJT_INVALID_CMD;
/* Unknown ELS command <elsCmd> received from NPORT <did> */
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0115 Unknown ELS command x%x "
"received from NPORT x%x\n",
phba->brd_no, vport->vpi, cmd, did);
if (newnode)
lpfc_drop_node(vport, ndlp);
break;
}
/* check if need to LS_RJT received ELS cmd */
if (rjt_err) {
memset(&stat, 0, sizeof(stat));
stat.un.b.lsRjtRsnCode = rjt_err;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
NULL);
if (newnode)
lpfc_drop_node(vport, ndlp);
}
return;
dropit:
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0111 Dropping received ELS cmd "
"Data: x%x x%x x%x\n",
phba->brd_no, vport ? vport->vpi : 0xffff,
icmd->ulpStatus, icmd->un.ulpWord[4],
icmd->ulpTimeout);
phba->fc_stat.elsRcvDrop++;
}
static struct lpfc_vport *
lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
{
struct lpfc_vport *vport;
list_for_each_entry(vport, &phba->port_list, listentry) {
if (vport->vpi == vpi)
return vport;
}
return NULL;
}
void
lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *elsiocb)
{
struct lpfc_vport *vport = phba->pport;
IOCB_t *icmd = &elsiocb->iocb;
dma_addr_t paddr;
struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
elsiocb->context2 = NULL;
elsiocb->context3 = NULL;
if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
} else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
(icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) {
phba->fc_stat.NoRcvBuf++;
/* Not enough posted buffers; Try posting more buffers */
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
lpfc_post_buffer(phba, pring, 0, 1);
return;
}
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
if (icmd->unsli3.rcvsli3.vpi == 0xffff)
vport = phba->pport;
else {
uint16_t vpi = icmd->unsli3.rcvsli3.vpi;
vport = lpfc_find_vport_by_vpid(phba, vpi);
}
}
/* If there are no BDEs associated
* with this IOCB, there is nothing to do.
*/
if (icmd->ulpBdeCount == 0)
return;
/* type of ELS cmd is first 32bit word
* in packet
*/
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
elsiocb->context2 = bdeBuf1;
} else {
paddr = getPaddr(icmd->un.cont64[0].addrHigh,
icmd->un.cont64[0].addrLow);
elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
paddr);
}
lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
/*
* The different unsolicited event handlers would tell us
* if they are done with "mp" by setting context2 to NULL.
*/
lpfc_nlp_put(elsiocb->context1);
elsiocb->context1 = NULL;
if (elsiocb->context2) {
lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
elsiocb->context2 = NULL;
}
/* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
icmd->ulpBdeCount == 2) {
elsiocb->context2 = bdeBuf2;
lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
/* free mp if we are done with it */
if (elsiocb->context2) {
lpfc_in_buf_free(phba, elsiocb->context2);
elsiocb->context2 = NULL;
}
}
}
void
lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *ndlp_fdmi;
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ndlp) {
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp) {
if (phba->fc_topology == TOPOLOGY_LOOP) {
lpfc_disc_start(vport);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0251 NameServer login: no memory\n",
phba->brd_no, vport->vpi);
return;
}
lpfc_nlp_init(vport, ndlp, NameServer_DID);
ndlp->nlp_type |= NLP_FABRIC;
}
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0252 Cannot issue NameServer login\n",
phba->brd_no, vport->vpi);
return;
}
if (phba->cfg_fdmi_on) {
ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
GFP_KERNEL);
if (ndlp_fdmi) {
lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
ndlp_fdmi->nlp_type |= NLP_FABRIC;
ndlp_fdmi->nlp_state =
NLP_STE_PLOGI_ISSUE;
lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID,
0);
}
}
return;
}
static void
lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
MAILBOX_t *mb = &pmb->mb;
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
lpfc_nlp_put(ndlp);
if (mb->mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"%d (%d):0915 Register VPI failed: 0x%x\n",
phba->brd_no, vport->vpi, mb->mbxStatus);
switch (mb->mbxStatus) {
case 0x11: /* unsupported feature */
case 0x9603: /* max_vpi exceeded */
/* giving up on vport registration */
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
break;
default:
/* Try to recover from this error */
lpfc_mbx_unreg_vpi(vport);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
lpfc_initial_fdisc(vport);
break;
}
} else {
if (vport == phba->pport)
lpfc_issue_fabric_reglogin(vport);
else
lpfc_do_scr_ns_plogi(phba, vport);
}
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
void
lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp)
{
LPFC_MBOXQ_t *mbox;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, mbox);
mbox->vport = vport;
mbox->context2 = lpfc_nlp_get(ndlp);
mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
if (lpfc_sli_issue_mbox(phba, mbox,
MBX_NOWAIT | MBX_STOP_IOCB)
== MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"%d (%d):0253 Register VPI: Cannot send mbox\n",
phba->brd_no, vport->vpi);
}
} else {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"%d (%d):0254 Register VPI: no memory\n",
phba->brd_no, vport->vpi);
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
lpfc_nlp_put(ndlp);
}
}
static void
lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
IOCB_t *irsp = &rspiocb->iocb;
struct lpfc_iocbq *piocb;
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d (%d):0123 FDISC completes. x%x/x%x prevDID: x%x\n",
phba->brd_no, vport->vpi,
irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
/* Since all FDISCs are being single threaded, we
* must reset the discovery timer for ALL vports
* waiting to send FDISC when one completes.
*/
list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
lpfc_set_disctmo(piocb->vport);
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"FDISC cmpl: status:x%x/x%x prevdid:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
if (irsp->ulpStatus) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
goto out;
/* FDISC failed */
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0124 FDISC failed. (%d/%d)\n",
phba->brd_no, vport->vpi,
irsp->ulpStatus, irsp->un.ulpWord[4]);
if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING)
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_nlp_put(ndlp);
/* giving up on FDISC. Cancel discovery timer */
lpfc_can_disctmo(vport);
} else {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_FABRIC;
if (vport->phba->fc_topology == TOPOLOGY_LOOP)
vport->fc_flag |= FC_PUBLIC_LOOP;
spin_unlock_irq(shost->host_lock);
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
if ((vport->fc_prevDID != vport->fc_myDID) &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
* remaining NPORTs get unreg_login'ed so we can
* issue unreg_vpi.
*/
list_for_each_entry_safe(np, next_np,
&vport->fc_nodes, nlp_listp) {
if (np->nlp_state != NLP_STE_NPR_NODE
|| !(np->nlp_flag & NLP_NPR_ADISC))
continue;
spin_lock_irq(shost->host_lock);
np->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vport, np);
}
lpfc_mbx_unreg_vpi(vport);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
}
if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
lpfc_register_new_vport(phba, vport, ndlp);
else
lpfc_do_scr_ns_plogi(phba, vport);
lpfc_nlp_put(ndlp); /* Free Fabric ndlp for vports */
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
}
int
lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
struct serv_parm *sp;
uint8_t *pcmd;
uint16_t cmdsize;
int did = ndlp->nlp_DID;
int rc;
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
ELS_CMD_FDISC);
if (!elsiocb) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0255 Issue FDISC: no IOCB\n",
phba->brd_no, vport->vpi);
return 1;
}
icmd = &elsiocb->iocb;
icmd->un.elsreq64.myID = 0;
icmd->un.elsreq64.fl = 1;
/* For FDISC, Let FDISC rsp set the NPortID for this VPI */
icmd->ulpCt_h = 1;
icmd->ulpCt_l = 0;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
pcmd += sizeof(uint32_t); /* CSP Word 1 */
memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cls1.classValid = 0;
sp->cls2.seqDelivery = 1;
sp->cls3.seqDelivery = 1;
pcmd += sizeof(uint32_t); /* CSP Word 2 */
pcmd += sizeof(uint32_t); /* CSP Word 3 */
pcmd += sizeof(uint32_t); /* CSP Word 4 */
pcmd += sizeof(uint32_t); /* Port Name */
memcpy(pcmd, &vport->fc_portname, 8);
pcmd += sizeof(uint32_t); /* Node Name */
pcmd += sizeof(uint32_t); /* Node Name */
memcpy(pcmd, &vport->fc_nodename, 8);
lpfc_set_disctmo(vport);
phba->fc_stat.elsXmitFDISC++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FDISC: did:x%x",
did, 0, 0);
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"%d (%d):0256 Issue FDISC: Cannot send IOCB\n",
phba->brd_no, vport->vpi);
return 1;
}
lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
vport->port_state = LPFC_FDISC;
return 0;
}
static void
lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
irsp = &rspiocb->iocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"LOGO npiv cmpl: status:x%x/x%x did:x%x",
irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
lpfc_els_free_iocb(phba, cmdiocb);
vport->unreg_vpi_cmpl = VPORT_ERROR;
}
int
lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
IOCB_t *icmd;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
ELS_CMD_LOGO);
if (!elsiocb)
return 1;
icmd = &elsiocb->iocb;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
pcmd += sizeof(uint32_t);
/* Fill in LOGO payload */
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue LOGO npiv did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_LOGO_SND;
spin_unlock_irq(shost->host_lock);
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
void
lpfc_fabric_block_timeout(unsigned long ptr)
{
struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
unsigned long iflags;
uint32_t tmo_posted;
spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
if (!tmo_posted)
phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
if (!tmo_posted) {
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->work_wait)
lpfc_worker_wake_up(phba);
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
}
static void
lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
{
struct lpfc_iocbq *iocb;
unsigned long iflags;
int ret;
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
IOCB_t *cmd;
repeat:
iocb = NULL;
spin_lock_irqsave(&phba->hbalock, iflags);
/* Post any pending iocb to the SLI layer */
if (atomic_read(&phba->fabric_iocb_count) == 0) {
list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
list);
if (iocb)
atomic_inc(&phba->fabric_iocb_count);
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (iocb) {
iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
iocb->iocb_flag |= LPFC_IO_FABRIC;
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
"Fabric sched1: ste:x%x",
iocb->vport->port_state, 0, 0);
ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0);
if (ret == IOCB_ERROR) {
iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
iocb->fabric_iocb_cmpl = NULL;
iocb->iocb_flag &= ~LPFC_IO_FABRIC;
cmd = &iocb->iocb;
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
iocb->iocb_cmpl(phba, iocb, iocb);
atomic_dec(&phba->fabric_iocb_count);
goto repeat;
}
}
return;
}
void
lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
{
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
lpfc_resume_fabric_iocbs(phba);
return;
}
static void
lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
{
int blocked;
blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
/* Start a timer to unblock fabric
* iocbs after 100ms
*/
if (!blocked)
mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 );
return;
}
static void
lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct ls_rjt stat;
if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
BUG();
switch (rspiocb->iocb.ulpStatus) {
case IOSTAT_NPORT_RJT:
case IOSTAT_FABRIC_RJT:
if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
lpfc_block_fabric_iocbs(phba);
}
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
lpfc_block_fabric_iocbs(phba);
break;
case IOSTAT_LS_RJT:
stat.un.lsRjtError =
be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
(stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
lpfc_block_fabric_iocbs(phba);
break;
}
if (atomic_read(&phba->fabric_iocb_count) == 0)
BUG();
cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
cmdiocb->fabric_iocb_cmpl = NULL;
cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
atomic_dec(&phba->fabric_iocb_count);
if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
/* Post any pending iocbs to HBA */
lpfc_resume_fabric_iocbs(phba);
}
}
int
lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
{
unsigned long iflags;
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
int ready;
int ret;
if (atomic_read(&phba->fabric_iocb_count) > 1)
BUG();
spin_lock_irqsave(&phba->hbalock, iflags);
ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (ready) {
iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
iocb->iocb_flag |= LPFC_IO_FABRIC;
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
"Fabric sched2: ste:x%x",
iocb->vport->port_state, 0, 0);
atomic_inc(&phba->fabric_iocb_count);
ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0);
if (ret == IOCB_ERROR) {
iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
iocb->fabric_iocb_cmpl = NULL;
iocb->iocb_flag &= ~LPFC_IO_FABRIC;
atomic_dec(&phba->fabric_iocb_count);
}
} else {
spin_lock_irqsave(&phba->hbalock, iflags);
list_add_tail(&iocb->list, &phba->fabric_iocb_list);
spin_unlock_irqrestore(&phba->hbalock, iflags);
ret = IOCB_SUCCESS;
}
return ret;
}
void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *tmp_iocb, *piocb;
IOCB_t *cmd;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
list) {
if (piocb->vport != vport)
continue;
list_move_tail(&piocb->list, &completions);
}
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
piocb = list_get_first(&completions, struct lpfc_iocbq, list);
list_del_init(&piocb->list);
cmd = &piocb->iocb;
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(piocb->iocb_cmpl) (phba, piocb, piocb);
}
}
void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = ndlp->vport->phba;
struct lpfc_iocbq *tmp_iocb, *piocb;
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
IOCB_t *cmd;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
list) {
if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
list_move_tail(&piocb->list, &completions);
}
}
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
piocb = list_get_first(&completions, struct lpfc_iocbq, list);
list_del_init(&piocb->list);
cmd = &piocb->iocb;
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(piocb->iocb_cmpl) (phba, piocb, piocb);
}
}
void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_iocbq *piocb;
IOCB_t *cmd;
spin_lock_irq(&phba->hbalock);
list_splice_init(&phba->fabric_iocb_list, &completions);
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
piocb = list_get_first(&completions, struct lpfc_iocbq, list);
list_del_init(&piocb->list);
cmd = &piocb->iocb;
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(piocb->iocb_cmpl) (phba, piocb, piocb);
}
}
void lpfc_fabric_abort_flogi(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_iocbq *tmp_iocb, *piocb;
IOCB_t *cmd;
struct lpfc_nodelist *ndlp;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
list) {
cmd = &piocb->iocb;
ndlp = (struct lpfc_nodelist *) piocb->context1;
if (cmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
ndlp != NULL &&
ndlp->nlp_DID == Fabric_DID)
list_move_tail(&piocb->list, &completions);
}
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
piocb = list_get_first(&completions, struct lpfc_iocbq, list);
list_del_init(&piocb->list);
cmd = &piocb->iocb;
cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(piocb->iocb_cmpl) (phba, piocb, piocb);
}
}
Reference in New Issue View Git Blame Copy Permalink