/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2006 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2009 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
-
+/* See Fibre Channel protocol T11 FC-LS for details */
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.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 void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
+static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
+ struct lpfc_nodelist *ndlp, uint8_t retry);
+static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
+ struct lpfc_iocbq *iocb);
+static void lpfc_register_new_vport(struct lpfc_hba *phba,
+ struct lpfc_vport *vport,
+ struct lpfc_nodelist *ndlp);
+
static int lpfc_max_els_tries = 3;
-static int
-lpfc_els_chk_latt(struct lpfc_hba * phba)
+/**
+ * lpfc_els_chk_latt - Check host link attention event for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine checks whether there is an outstanding host link
+ * attention event during the discovery process with the @vport. It is done
+ * by reading the HBA's Host Attention (HA) register. If there is any host
+ * link attention events during this @vport's discovery process, the @vport
+ * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
+ * be issued if the link state is not already in host link cleared state,
+ * and a return code shall indicate whether the host link attention event
+ * had happened.
+ *
+ * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
+ * state in LPFC_VPORT_READY, the request for checking host link attention
+ * event will be ignored and a return code shall indicate no host link
+ * attention event had happened.
+ *
+ * Return codes
+ * 0 - no host link attention event happened
+ * 1 - host link attention event happened
+ **/
+int
+lpfc_els_chk_latt(struct lpfc_vport *vport)
{
- struct lpfc_sli *psli;
- LPFC_MBOXQ_t *mbox;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
uint32_t ha_copy;
- int rc;
-
- psli = &phba->sli;
- if ((phba->hba_state >= LPFC_HBA_READY) ||
- (phba->hba_state == LPFC_LINK_DOWN))
+ if (vport->port_state >= LPFC_VPORT_READY ||
+ phba->link_state == LPFC_LINK_DOWN ||
+ phba->sli_rev > LPFC_SLI_REV3)
return 0;
/* Read the HBA Host Attention Register */
- spin_lock_irq(phba->host->host_lock);
ha_copy = readl(phba->HAregaddr);
- spin_unlock_irq(phba->host->host_lock);
if (!(ha_copy & HA_LATT))
return 0;
/* Pending Link Event during Discovery */
- lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
- "%d:0237 Pending Link Event during "
- "Discovery: State x%x\n",
- phba->brd_no, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0237 Pending Link Event during "
+ "Discovery: State x%x\n",
+ phba->pport->port_state);
/* CLEAR_LA should re-enable link attention events and
* we should then imediately take a LATT event. The
* will cleanup any left over in-progress discovery
* events.
*/
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_ABORT_DISCOVERY;
- spin_unlock_irq(phba->host->host_lock);
-
- if (phba->hba_state != LPFC_CLEAR_LA) {
- if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
- phba->hba_state = LPFC_CLEAR_LA;
- lpfc_clear_la(phba, mbox);
- mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox (phba, mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free(mbox, phba->mbox_mem_pool);
- phba->hba_state = LPFC_HBA_ERROR;
- }
- }
- }
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_ABORT_DISCOVERY;
+ spin_unlock_irq(shost->host_lock);
- return 1;
+ 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_hba * phba, uint8_t expectRsp,
- uint16_t cmdSize, uint8_t retry, struct lpfc_nodelist * ndlp,
- uint32_t did, uint32_t elscmd)
+/**
+ * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @expectRsp: flag indicating whether response is expected.
+ * @cmdSize: size of the ELS command.
+ * @retry: number of retries to the command IOCB when it fails.
+ * @ndlp: pointer to a node-list data structure.
+ * @did: destination identifier.
+ * @elscmd: the ELS command code.
+ *
+ * This routine is used for allocating a lpfc-IOCB data structure from
+ * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
+ * passed into the routine for discovery state machine to issue an Extended
+ * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
+ * and preparation routine that is used by all the discovery state machine
+ * routines and the ELS command-specific fields will be later set up by
+ * the individual discovery machine routines after calling this routine
+ * allocating and preparing a generic IOCB data structure. It fills in the
+ * Buffer Descriptor Entries (BDEs), allocates buffers for both command
+ * payload and response payload (if expected). The reference count on the
+ * ndlp is incremented by 1 and the reference to the ndlp is put into
+ * context1 of the IOCB data structure for this IOCB to hold the ndlp
+ * reference for the command's callback function to access later.
+ *
+ * Return code
+ * Pointer to the newly allocated/prepared els iocb data structure
+ * NULL - when els iocb data structure allocation/preparation failed
+ **/
+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_sli_ring *pring;
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
struct ulp_bde64 *bpl;
IOCB_t *icmd;
- pring = &phba->sli.ring[LPFC_ELS_RING];
- if (phba->hba_state < LPFC_LINK_UP)
- return NULL;
+ if (!lpfc_is_link_up(phba))
+ return NULL;
/* Allocate buffer for command iocb */
- spin_lock_irq(phba->host->host_lock);
elsiocb = lpfc_sli_get_iocbq(phba);
- spin_unlock_irq(phba->host->host_lock);
if (elsiocb == NULL)
return NULL;
+
+ /*
+ * If this command is for fabric controller and HBA running
+ * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
+ */
+ if ((did == Fabric_DID) &&
+ bf_get(lpfc_fip_flag, &phba->sli4_hba.sli4_flags) &&
+ ((elscmd == ELS_CMD_FLOGI) ||
+ (elscmd == ELS_CMD_FDISC) ||
+ (elscmd == ELS_CMD_LOGO)))
+ elsiocb->iocb_flag |= LPFC_FIP_ELS;
+ else
+ elsiocb->iocb_flag &= ~LPFC_FIP_ELS;
+
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);
-
- spin_lock_irq(phba->host->host_lock);
- lpfc_sli_release_iocbq(phba, elsiocb);
- spin_unlock_irq(phba->host->host_lock);
- return NULL;
- }
+ pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (pcmd)
+ pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
+ if (!pcmd || !pcmd->virt)
+ goto els_iocb_free_pcmb_exit;
INIT_LIST_HEAD(&pcmd->list);
/* Allocate buffer for response payload */
if (expectRsp) {
- prsp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+ 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);
- spin_lock_irq(phba->host->host_lock);
- lpfc_sli_release_iocbq(phba, elsiocb);
- spin_unlock_irq(phba->host->host_lock);
- return NULL;
- }
+ if (!prsp || !prsp->virt)
+ goto els_iocb_free_prsp_exit;
INIT_LIST_HEAD(&prsp->list);
- } else {
+ } else
prsp = NULL;
- }
/* Allocate buffer for Buffer ptr list */
- pbuflist = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+ 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) {
- spin_lock_irq(phba->host->host_lock);
- lpfc_sli_release_iocbq(phba, elsiocb);
- spin_unlock_irq(phba->host->host_lock);
- lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
- lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
- kfree(pcmd);
- kfree(prsp);
- kfree(pbuflist);
- return NULL;
- }
+ pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
+ &pbuflist->phys);
+ if (!pbuflist || !pbuflist->virt)
+ goto els_iocb_free_pbuf_exit;
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.bdl.bdeFlags = BUFF_TYPE_BLP_64;
+ icmd->un.elsreq64.remoteID = did; /* DID */
if (expectRsp) {
- icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64));
- icmd->un.elsreq64.remoteID = did; /* DID */
+ 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->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 + phba->vpi_base;
+ icmd->ulpCt_h = 0;
+ /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
+ if (elscmd == ELS_CMD_ECHO)
+ icmd->ulpCt_l = 0; /* context = invalid RPI */
+ else
+ icmd->ulpCt_l = 1; /* context = VPI */
+ }
+
bpl = (struct ulp_bde64 *) pbuflist->virt;
bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
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.f.bdeFlags = BUFF_TYPE_BDE_64;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
}
- /* Save for completion so we can release these resources */
- elsiocb->context1 = (uint8_t *) ndlp;
- elsiocb->context2 = (uint8_t *) pcmd;
- elsiocb->context3 = (uint8_t *) pbuflist;
+ /* prevent preparing iocb with NULL ndlp reference */
+ elsiocb->context1 = lpfc_nlp_get(ndlp);
+ if (!elsiocb->context1)
+ goto els_iocb_free_pbuf_exit;
+ 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:0116 Xmit ELS command x%x to remote "
- "NPORT x%x Data: x%x x%x\n",
- phba->brd_no, elscmd,
- did, icmd->ulpIoTag, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0116 Xmit ELS command x%x to remote "
+ "NPORT x%x I/O tag: x%x, port state: x%x\n",
+ 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:0117 Xmit ELS response x%x to remote "
- "NPORT x%x Data: x%x x%x\n",
- phba->brd_no, elscmd,
- ndlp->nlp_DID, icmd->ulpIoTag, cmdSize);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0117 Xmit ELS response x%x to remote "
+ "NPORT x%x I/O tag: x%x, size: x%x\n",
+ elscmd, ndlp->nlp_DID, elsiocb->iotag,
+ cmdSize);
}
-
return elsiocb;
-}
+els_iocb_free_pbuf_exit:
+ if (expectRsp)
+ lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
+ kfree(pbuflist);
-static int
-lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
- struct serv_parm *sp, IOCB_t *irsp)
+els_iocb_free_prsp_exit:
+ lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
+ kfree(prsp);
+
+els_iocb_free_pcmb_exit:
+ kfree(pcmd);
+ lpfc_sli_release_iocbq(phba, elsiocb);
+ return NULL;
+}
+
+/**
+ * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues a fabric registration login for a @vport. An
+ * active ndlp node with Fabric_DID must already exist for this @vport.
+ * The routine invokes two mailbox commands to carry out fabric registration
+ * login through the HBA firmware: the first mailbox command requests the
+ * HBA to perform link configuration for the @vport; and the second mailbox
+ * command requests the HBA to perform the actual fabric registration login
+ * with the @vport.
+ *
+ * Return code
+ * 0 - successfully issued fabric registration login for @vport
+ * -ENXIO -- failed to issue fabric registration login for @vport
+ **/
+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;
+ int err = 0;
+
+ sp = &phba->fc_fabparam;
+ ndlp = lpfc_findnode_did(vport, Fabric_DID);
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
+ err = 1;
+ goto fail;
+ }
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ err = 2;
+ 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);
+ if (rc == MBX_NOT_FINISHED) {
+ err = 3;
+ goto fail_free_mbox;
+ }
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ err = 4;
+ goto fail;
+ }
+ rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0);
+ if (rc) {
+ err = 5;
+ goto fail_free_mbox;
+ }
+
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
+ mbox->vport = vport;
+ /* increment the reference count on ndlp to hold reference
+ * for the callback routine.
+ */
+ mbox->context2 = lpfc_nlp_get(ndlp);
+
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ err = 6;
+ goto fail_issue_reg_login;
+ }
+
+ return 0;
+
+fail_issue_reg_login:
+ /* decrement the reference count on ndlp just incremented
+ * for the failed mbox command.
+ */
+ 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0249 Cannot issue Register Fabric login: Err %d\n", err);
+ return -ENXIO;
+}
+
+/**
+ * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
+ * the @vport. This mailbox command is necessary for FCoE only.
+ *
+ * Return code
+ * 0 - successfully issued REG_VFI for @vport
+ * A failure code otherwise.
+ **/
+static int
+lpfc_issue_reg_vfi(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mboxq;
+ struct lpfc_nodelist *ndlp;
+ struct serv_parm *sp;
+ struct lpfc_dmabuf *dmabuf;
+ int rc = 0;
+
+ sp = &phba->fc_fabparam;
+ ndlp = lpfc_findnode_did(vport, Fabric_DID);
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
+ rc = -ENODEV;
+ goto fail;
+ }
+
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf) {
+ rc = -ENOMEM;
+ goto fail;
+ }
+ dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
+ if (!dmabuf->virt) {
+ rc = -ENOMEM;
+ goto fail_free_dmabuf;
+ }
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ rc = -ENOMEM;
+ goto fail_free_coherent;
+ }
+ vport->port_state = LPFC_FABRIC_CFG_LINK;
+ memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam));
+ lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
+ mboxq->vport = vport;
+ mboxq->context1 = dmabuf;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ rc = -ENXIO;
+ goto fail_free_mbox;
+ }
+ return 0;
+
+fail_free_mbox:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+fail_free_coherent:
+ lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+fail_free_dmabuf:
+ kfree(dmabuf);
+fail:
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0289 Issue Register VFI failed: Err %d\n", rc);
+ return rc;
+}
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_FABRIC;
- spin_unlock_irq(phba->host->host_lock);
+/**
+ * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @sp: pointer to service parameter data structure.
+ * @irsp: pointer to the IOCB within the lpfc response IOCB.
+ *
+ * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
+ * function to handle the completion of a Fabric Login (FLOGI) into a fabric
+ * port in a fabric topology. It properly sets up the parameters to the @ndlp
+ * from the IOCB response. It also check the newly assigned N_Port ID to the
+ * @vport against the previously assigned N_Port ID. If it is different from
+ * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
+ * is invoked on all the remaining nodes with the @vport to unregister the
+ * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
+ * is invoked to register login to the fabric.
+ *
+ * Return code
+ * 0 - Success (currently, always return 0)
+ **/
+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_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
if (phba->fc_topology == TOPOLOGY_LOOP) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_PUBLIC_LOOP;
- spin_unlock_irq(phba->host->host_lock);
+ 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.
*/
- phba->fc_sparam.cmn.altBbCredit = 1;
+ vport->fc_sparam.cmn.altBbCredit = 1;
}
- phba->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
+ 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));
+ 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;
sp->cmn.bbRcvSizeLsb;
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
- mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!mbox)
- goto fail;
-
- phba->hba_state = LPFC_FABRIC_CFG_LINK;
- lpfc_config_link(phba, mbox);
- mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-
- 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;
-
- if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0))
- goto fail_free_mbox;
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
+ if (sp->cmn.response_multiple_NPort) {
+ lpfc_printf_vlog(vport, KERN_WARNING,
+ LOG_ELS | LOG_VPORT,
+ "1816 FLOGI NPIV supported, "
+ "response data 0x%x\n",
+ 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_vlog(vport, KERN_WARNING,
+ LOG_ELS | LOG_VPORT,
+ "1817 Fabric does not support NPIV "
+ "- configuring single port mode.\n");
+ phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
+ }
+ }
- mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
- mbox->context2 = ndlp;
+ if ((vport->fc_prevDID != vport->fc_myDID) &&
+ !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
- rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
- if (rc == MBX_NOT_FINISHED)
- goto fail_free_mbox;
+ /* 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 (!NLP_CHK_NODE_ACT(np))
+ continue;
+ 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);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ }
+ }
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ 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);
+ else
+ lpfc_issue_fabric_reglogin(vport);
+ } else {
+ ndlp->nlp_type |= NLP_FABRIC;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ if (vport->vfi_state & LPFC_VFI_REGISTERED) {
+ lpfc_start_fdiscs(phba);
+ lpfc_do_scr_ns_plogi(phba, vport);
+ } else
+ lpfc_issue_reg_vfi(vport);
+ }
return 0;
-
- fail_free_mbox:
- mempool_free(mbox, phba->mbox_mem_pool);
- fail:
- return -ENXIO;
}
-
-/*
- * We FLOGIed into an NPort, initiate pt2pt protocol
- */
+/**
+ * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @sp: pointer to service parameter data structure.
+ *
+ * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
+ * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
+ * in a point-to-point topology. First, the @vport's N_Port Name is compared
+ * with the received N_Port Name: if the @vport's N_Port Name is greater than
+ * the received N_Port Name lexicographically, this node shall assign local
+ * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
+ * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
+ * this node shall just wait for the remote node to issue PLOGI and assign
+ * N_Port IDs.
+ *
+ * Return code
+ * 0 - Success
+ * -ENXIO - Fail
+ **/
static int
-lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
- struct serv_parm *sp)
+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(phba->host->host_lock);
- phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
- spin_unlock_irq(phba->host->host_lock);
+ 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(&phba->fc_portname, &sp->portName,
- sizeof(struct lpfc_name));
+ rc = memcmp(&vport->fc_portname, &sp->portName,
+ sizeof(vport->fc_portname));
if (rc >= 0) {
/* This side will initiate the PLOGI */
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_PT2PT_PLOGI;
- spin_unlock_irq(phba->host->host_lock);
+ 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
/* not equal */
if (rc)
- phba->fc_myDID = PT2PT_LocalID;
+ vport->fc_myDID = PT2PT_LocalID;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
- rc = lpfc_sli_issue_mbox(phba, mbox,
- MBX_NOWAIT | MBX_STOP_IOCB);
+ mbox->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
goto fail;
}
- mempool_free(ndlp, phba->nlp_mem_pool);
+ /* Decrement ndlp reference count indicating that ndlp can be
+ * safely released when other references to it are done.
+ */
+ lpfc_nlp_put(ndlp);
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, PT2PT_RemoteID);
+ ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
if (!ndlp) {
/*
* Cannot find existing Fabric ndlp, so allocate a
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
goto fail;
-
- lpfc_nlp_init(phba, ndlp, PT2PT_RemoteID);
+ lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp,
+ NLP_STE_UNUSED_NODE);
+ if(!ndlp)
+ goto fail;
}
memcpy(&ndlp->nlp_portname, &sp->portName,
- sizeof(struct lpfc_name));
+ sizeof(struct lpfc_name));
memcpy(&ndlp->nlp_nodename, &sp->nodeName,
- sizeof(struct lpfc_name));
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ sizeof(struct lpfc_name));
+ /* Set state will put ndlp onto node list if not already done */
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- } else {
- /* This side will wait for the PLOGI */
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ spin_unlock_irq(shost->host_lock);
+ } else
+ /* This side will wait for the PLOGI, decrement ndlp reference
+ * count indicating that ndlp can be released when other
+ * references to it are done.
+ */
+ lpfc_nlp_put(ndlp);
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_PT2PT;
- spin_unlock_irq(phba->host->host_lock);
+ /* If we are pt2pt with another NPort, force NPIV off! */
+ phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
+
+ 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(phba);
+ lpfc_disc_start(vport);
return 0;
- fail:
+fail:
return -ENXIO;
}
+/**
+ * lpfc_cmpl_els_flogi - Completion callback function for flogi
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the top-level completion callback function for issuing
+ * a Fabric Login (FLOGI) command. If the response IOCB reported error,
+ * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
+ * retry has been made (either immediately or delayed with lpfc_els_retry()
+ * returning 1), the command IOCB will be released and function returned.
+ * If the retry attempt has been given up (possibly reach the maximum
+ * number of retries), one additional decrement of ndlp reference shall be
+ * invoked before going out after releasing the command IOCB. This will
+ * actually release the remote node (Note, lpfc_els_free_iocb() will also
+ * invoke one decrement of ndlp reference count). If no error reported in
+ * the IOCB status, the command Port ID field is used to determine whether
+ * this is a point-to-point topology or a fabric topology: if the Port ID
+ * field is assigned, it is a fabric topology; otherwise, it is a
+ * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
+ * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
+ * specific topology completion conditions.
+ **/
static void
-lpfc_cmpl_els_flogi(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb)
+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;
int rc;
/* Check to see if link went down during discovery */
- if (lpfc_els_chk_latt(phba)) {
- lpfc_nlp_remove(phba, ndlp);
+ if (lpfc_els_chk_latt(vport)) {
+ /* One additional decrement on node reference count to
+ * trigger the release of the node
+ */
+ 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)) {
- /* ELS command is being retried */
+ if (lpfc_els_retry(phba, cmdiocb, rspiocb))
goto out;
- }
+
/* FLOGI failed, so there is no fabric */
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
- spin_unlock_irq(phba->host->host_lock);
+ 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 outstandting els to be
+ /* 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;
+ vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
}
/* FLOGI failure */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_ELS,
- "%d:0100 FLOGI failure Data: x%x x%x x%x\n",
- phba->brd_no,
- irsp->ulpStatus, irsp->un.ulpWord[4],
- irsp->ulpTimeout);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0100 FLOGI failure Data: x%x x%x "
+ "x%x\n",
+ irsp->ulpStatus, irsp->un.ulpWord[4],
+ irsp->ulpTimeout);
goto flogifail;
}
sp = prsp->virt + sizeof(uint32_t);
/* FLOGI completes successfully */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0101 FLOGI completes sucessfully "
- "Data: x%x x%x x%x x%x\n",
- phba->brd_no,
- irsp->un.ulpWord[4], sp->cmn.e_d_tov,
- sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
-
- if (phba->hba_state == LPFC_FLOGI) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0101 FLOGI completes successfully "
+ "Data: x%x x%x x%x x%x\n",
+ 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(phba, ndlp, sp, irsp);
+ rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
else
- rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp);
+ rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
if (!rc)
goto out;
}
flogifail:
- lpfc_nlp_remove(phba, ndlp);
+ lpfc_nlp_put(ndlp);
- if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
- (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED &&
- irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) {
+ if (!lpfc_error_lost_link(irsp)) {
/* FLOGI failed, so just use loop map to make discovery list */
- lpfc_disc_list_loopmap(phba);
+ lpfc_disc_list_loopmap(vport);
/* Start discovery */
- lpfc_disc_start(phba);
+ lpfc_disc_start(vport);
+ } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
+ ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
+ (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) &&
+ (phba->link_state != LPFC_CLEAR_LA)) {
+ /* If FLOGI failed enable link interrupt. */
+ lpfc_issue_clear_la(phba, vport);
}
-
out:
lpfc_els_free_iocb(phba, cmdiocb);
}
+/**
+ * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues a Fabric Login (FLOGI) Request ELS command
+ * for a @vport. The initiator service parameters are put into the payload
+ * of the FLOGI Request IOCB and the top-level callback function pointer
+ * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
+ * function field. The lpfc_issue_fabric_iocb routine is invoked to send
+ * out FLOGI ELS command with one outstanding fabric IOCB at a time.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the FLOGI ELS command.
+ *
+ * Return code
+ * 0 - successfully issued flogi iocb for @vport
+ * 1 - failed to issue flogi iocb for @vport
+ **/
static int
-lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+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;
pring = &phba->sli.ring[LPFC_ELS_RING];
- cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
- elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_FLOGI);
+ 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;
/* For FLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
- pcmd += sizeof (uint32_t);
- memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
+ pcmd += sizeof(uint32_t);
+ memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/* Setup CSPs accordingly for Fabric */
if (sp->cmn.fcphHigh < FC_PH3)
sp->cmn.fcphHigh = FC_PH3;
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
+ elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
+ /* FLOGI needs to be 3 for WQE FCFI */
+ /* Set the fcfi to the fcfi we registered with */
+ elsiocb->iocb.ulpContext = phba->fcf.fcfi;
+ } else 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(phba);
+ lpfc_set_disctmo(vport);
phba->fc_ratov = tmo;
phba->fc_stat.elsXmitFLOGI++;
elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+
+ 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;
}
+/**
+ * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
+ * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
+ * list and issues an abort IOCB commond on each outstanding IOCB that
+ * contains a active Fabric_DID ndlp. Note that this function is to issue
+ * the abort IOCB command on all the outstanding IOCBs, thus when this
+ * function returns, it does not guarantee all the IOCBs are actually aborted.
+ *
+ * Return code
+ * 0 - Sucessfully issued abort iocb on all outstanding flogis (Always 0)
+ **/
int
-lpfc_els_abort_flogi(struct lpfc_hba * phba)
+lpfc_els_abort_flogi(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
/* 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);
+ "0201 Abort outstanding I/O on NPort x%x\n",
+ 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->host->host_lock);
+ 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) {
+ 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)) {
- list_del(&iocb->list);
- pring->txcmplq_cnt--;
-
- if ((icmd->un.elsreq64.bdl.ulpIoTag32)) {
- lpfc_sli_issue_abort_iotag32
- (phba, pring, iocb);
- }
- if (iocb->iocb_cmpl) {
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] =
- IOERR_SLI_ABORTED;
- spin_unlock_irq(phba->host->host_lock);
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- spin_lock_irq(phba->host->host_lock);
- } else
- lpfc_sli_release_iocbq(phba, iocb);
- }
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
+ (ndlp->nlp_DID == Fabric_DID))
+ lpfc_sli_issue_abort_iotag(phba, pring, iocb);
}
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
return 0;
}
+/**
+ * lpfc_initial_flogi - Issue an initial fabric login for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues an initial Fabric Login (FLOGI) for the @vport
+ * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
+ * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
+ * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
+ * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
+ * is then invoked with the @vport and the ndlp to perform the FLOGI for the
+ * @vport.
+ *
+ * Return code
+ * 0 - failed to issue initial flogi for @vport
+ * 1 - successfully issued initial flogi for @vport
+ **/
int
-lpfc_initial_flogi(struct lpfc_hba * phba)
+lpfc_initial_flogi(struct lpfc_vport *vport)
{
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
+ vport->port_state = LPFC_FLOGI;
+ lpfc_set_disctmo(vport);
+
/* First look for the Fabric ndlp */
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, Fabric_DID);
+ 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(phba, ndlp, Fabric_DID);
- } else {
- lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
+ lpfc_nlp_init(vport, ndlp, Fabric_DID);
+ /* Set the node type */
+ ndlp->nlp_type |= NLP_FABRIC;
+ /* Put ndlp onto node list */
+ lpfc_enqueue_node(vport, ndlp);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ /* re-setup ndlp without removing from node list */
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ return 0;
+ }
+
+ if (lpfc_issue_els_flogi(vport, ndlp, 0))
+ /* This decrement of reference count to node shall kick off
+ * the release of the node.
+ */
+ lpfc_nlp_put(ndlp);
+
+ return 1;
+}
+
+/**
+ * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues an initial Fabric Discover (FDISC) for the @vport
+ * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
+ * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
+ * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
+ * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
+ * is then invoked with the @vport and the ndlp to perform the FDISC for the
+ * @vport.
+ *
+ * Return code
+ * 0 - failed to issue initial fdisc for @vport
+ * 1 - successfully issued initial fdisc for @vport
+ **/
+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);
+ /* Put ndlp onto node list */
+ lpfc_enqueue_node(vport, ndlp);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ /* re-setup ndlp without removing from node list */
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ return 0;
}
- if (lpfc_issue_els_flogi(phba, ndlp, 0)) {
- mempool_free( ndlp, phba->nlp_mem_pool);
+
+ if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
+ /* decrement node reference count to trigger the release of
+ * the node.
+ */
+ lpfc_nlp_put(ndlp);
+ return 0;
}
return 1;
}
-static void
-lpfc_more_plogi(struct lpfc_hba * phba)
+/**
+ * lpfc_more_plogi - Check and issue remaining plogis for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine checks whether there are more remaining Port Logins
+ * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
+ * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
+ * to issue ELS PLOGIs up to the configured discover threads with the
+ * @vport (@vport->cfg_discovery_threads). The function also decrement
+ * the @vport's num_disc_node by 1 if it is not already 0.
+ **/
+void
+lpfc_more_plogi(struct lpfc_vport *vport)
{
int sentplogi;
- if (phba->num_disc_nodes)
- phba->num_disc_nodes--;
+ 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:0232 Continue discovery with %d PLOGIs to go "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt,
- phba->fc_flag, phba->hba_state);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0232 Continue discovery with %d PLOGIs to go "
+ "Data: x%x x%x x%x\n",
+ 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 (phba->fc_flag & FC_NLP_MORE) {
- /* go thru NPR list and issue any remaining ELS PLOGIs */
- sentplogi = lpfc_els_disc_plogi(phba);
- }
+ if (vport->fc_flag & FC_NLP_MORE)
+ /* go thru NPR nodes and issue any remaining ELS PLOGIs */
+ sentplogi = lpfc_els_disc_plogi(vport);
+
return;
}
+/**
+ * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
+ * @phba: pointer to lpfc hba data structure.
+ * @prsp: pointer to response IOCB payload.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine checks and indicates whether the WWPN of an N_Port, retrieved
+ * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
+ * The following cases are considered N_Port confirmed:
+ * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
+ * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
+ * it does not have WWPN assigned either. If the WWPN is confirmed, the
+ * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
+ * 1) if there is a node on vport list other than the @ndlp with the same
+ * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
+ * on that node to release the RPI associated with the node; 2) if there is
+ * no node found on vport list with the same WWPN of the N_Port PLOGI logged
+ * into, a new node shall be allocated (or activated). In either case, the
+ * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
+ * be released and the new_ndlp shall be put on to the vport node list and
+ * its pointer returned as the confirmed node.
+ *
+ * Note that before the @ndlp got "released", the keepDID from not-matching
+ * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
+ * of the @ndlp. This is because the release of @ndlp is actually to put it
+ * into an inactive state on the vport node list and the vport node list
+ * management algorithm does not allow two node with a same DID.
+ *
+ * Return code
+ * pointer to the PLOGI N_Port @ndlp
+ **/
static struct lpfc_nodelist *
-lpfc_plogi_confirm_nport(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
+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 lpfc_dmabuf *pcmd, *prsp;
- uint32_t *lp;
+ struct lpfc_rport_data *rdata;
+ struct fc_rport *rport;
struct serv_parm *sp;
- uint8_t name[sizeof (struct lpfc_name)];
- uint32_t rc;
+ uint8_t name[sizeof(struct lpfc_name)];
+ uint32_t rc, keepDID = 0;
- pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
- prsp = (struct lpfc_dmabuf *) pcmd->list.next;
- lp = (uint32_t *) prsp->virt;
- sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+ /* 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;
- /* Now we to find out if the NPort we are logging into, matches the WWPN
+ 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(phba, NLP_SEARCH_ALL, &sp->portName);
+ new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
- memset(name, 0, sizeof (struct lpfc_name));
- rc = memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name));
- if (!rc || (new_ndlp == ndlp)) {
+ if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_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);
+ } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
+ rc = memcmp(&ndlp->nlp_portname, name,
+ sizeof(struct lpfc_name));
+ if (!rc)
+ return ndlp;
+ new_ndlp = lpfc_enable_node(vport, new_ndlp,
+ NLP_STE_UNUSED_NODE);
+ if (!new_ndlp)
+ return ndlp;
+ keepDID = new_ndlp->nlp_DID;
+ } else
+ keepDID = new_ndlp->nlp_DID;
- lpfc_nlp_init(phba, new_ndlp, ndlp->nlp_DID);
- }
-
- lpfc_unreg_rpi(phba, new_ndlp);
- new_ndlp->nlp_prev_state = ndlp->nlp_state;
+ lpfc_unreg_rpi(vport, new_ndlp);
new_ndlp->nlp_DID = ndlp->nlp_DID;
- new_ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, new_ndlp, NLP_PLOGI_LIST);
+ new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
- /* Move this back to NPR list */
- lpfc_unreg_rpi(phba, ndlp);
- ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ if (ndlp->nlp_flag & NLP_NPR_2B_DISC)
+ new_ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+
+ /* Set state will put new_ndlp on to node list if not already done */
+ 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) {
+ /* The new_ndlp is replacing ndlp totally, so we need
+ * to put ndlp on UNUSED list and try to free it.
+ */
+
+ /* Fix up the rport accordingly */
+ rport = ndlp->rport;
+ if (rport) {
+ rdata = rport->dd_data;
+ if (rdata->pnode == ndlp) {
+ lpfc_nlp_put(ndlp);
+ ndlp->rport = NULL;
+ rdata->pnode = lpfc_nlp_get(new_ndlp);
+ new_ndlp->rport = rport;
+ }
+ new_ndlp->nlp_type = ndlp->nlp_type;
+ }
+ /* We shall actually free the ndlp with both nlp_DID and
+ * nlp_portname fields equals 0 to avoid any ndlp on the
+ * nodelist never to be used.
+ */
+ if (ndlp->nlp_DID == 0) {
+ spin_lock_irq(&phba->ndlp_lock);
+ NLP_SET_FREE_REQ(ndlp);
+ spin_unlock_irq(&phba->ndlp_lock);
+ }
+ /* Two ndlps cannot have the same did on the nodelist */
+ ndlp->nlp_DID = keepDID;
+ lpfc_drop_node(vport, ndlp);
+ }
+ else {
+ lpfc_unreg_rpi(vport, ndlp);
+ /* Two ndlps cannot have the same did */
+ ndlp->nlp_DID = keepDID;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ }
return new_ndlp;
}
+/**
+ * lpfc_end_rscn - Check and handle more rscn for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine checks whether more Registration State Change
+ * Notifications (RSCNs) came in while the discovery state machine was in
+ * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
+ * invoked to handle the additional RSCNs for the @vport. Otherwise, the
+ * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
+ * handling the RSCNs.
+ **/
+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);
+ }
+ }
+}
+
+/**
+ * lpfc_cmpl_els_plogi - Completion callback function for plogi
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function for issuing the Port
+ * Login (PLOGI) command. For PLOGI completion, there must be an active
+ * ndlp on the vport node list that matches the remote node ID from the
+ * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply
+ * ignored and command IOCB released. The PLOGI response IOCB status is
+ * checked for error conditons. If there is error status reported, PLOGI
+ * retry shall be attempted by invoking the lpfc_els_retry() routine.
+ * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
+ * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
+ * (DSM) is set for this PLOGI completion. Finally, it checks whether
+ * there are additional N_Port nodes with the vport that need to perform
+ * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
+ * PLOGIs.
+ **/
static void
-lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+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;
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL,
- irsp->un.elsreq64.remoteID);
- if (!ndlp)
+ 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 || !NLP_CHK_NODE_ACT(ndlp)) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0136 PLOGI completes to NPort x%x "
+ "with no ndlp. Data: x%x x%x x%x\n",
+ 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);
- spin_lock_irq(phba->host->host_lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
rc = 0;
/* PLOGI completes to NPort <nlp_DID> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0102 PLOGI completes to NPort x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
- irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
- phba->num_disc_nodes);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0102 PLOGI completes to NPort x%x "
+ "Data: x%x x%x x%x x%x x%x\n",
+ 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(phba)) {
- spin_lock_irq(phba->host->host_lock);
+ if (lpfc_els_chk_latt(vport)) {
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
goto out;
}
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
}
goto out;
}
-
/* PLOGI failed */
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
- if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
- ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
- (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
- (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
+ if (lpfc_error_lost_link(irsp))
rc = NLP_STE_FREED_NODE;
- } else {
- rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
- NLP_EVT_CMPL_PLOGI);
- }
+ else
+ rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
+ NLP_EVT_CMPL_PLOGI);
} else {
/* Good status, call state machine */
- ndlp = lpfc_plogi_confirm_nport(phba, cmdiocb, ndlp);
- rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
- NLP_EVT_CMPL_PLOGI);
+ 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 && phba->num_disc_nodes) {
+ if (disc && vport->num_disc_nodes) {
/* Check to see if there are more PLOGIs to be sent */
- lpfc_more_plogi(phba);
-
- if (phba->num_disc_nodes == 0) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_NDISC_ACTIVE;
- spin_unlock_irq(phba->host->host_lock);
-
- lpfc_can_disctmo(phba);
- if (phba->fc_flag & FC_RSCN_MODE) {
- /*
- * Check to see if more RSCNs came in while
- * we were processing this one.
- */
- if ((phba->fc_rscn_id_cnt == 0) &&
- (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_RSCN_MODE;
- spin_unlock_irq(phba->host->host_lock);
- } else {
- lpfc_els_handle_rscn(phba);
- }
- }
+ 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;
}
+/**
+ * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @did: destination port identifier.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues a Port Login (PLOGI) command to a remote N_Port
+ * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
+ * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
+ * This routine constructs the proper feilds of the PLOGI IOCB and invokes
+ * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the PLOGI ELS command.
+ *
+ * Return code
+ * 0 - Successfully issued a plogi for @vport
+ * 1 - failed to issue a plogi for @vport
+ **/
int
-lpfc_issue_els_plogi(struct lpfc_hba * phba, uint32_t did, uint8_t retry)
+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_nodelist *ndlp;
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(phba, 1, cmdsize, retry, NULL, did,
- ELS_CMD_PLOGI);
+ ndlp = lpfc_findnode_did(vport, did);
+ if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
+ ndlp = NULL;
+
+ /* If ndlp is not NULL, we will bump the reference count on it */
+ cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
+ elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
+ ELS_CMD_PLOGI);
if (!elsiocb)
return 1;
/* For PLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
- pcmd += sizeof (uint32_t);
- memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
+ 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)
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;
- spin_lock_irq(phba->host->host_lock);
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
- spin_unlock_irq(phba->host->host_lock);
+ ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
+
+ if (ret == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
return 0;
}
+/**
+ * lpfc_cmpl_els_prli - Completion callback function for prli
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function for a Process Login
+ * (PRLI) ELS command. The PRLI response IOCB status is checked for error
+ * status. If there is error status reported, PRLI retry shall be attempted
+ * by invoking the lpfc_els_retry() routine. Otherwise, the state
+ * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
+ * ndlp to mark the PRLI completion.
+ **/
static void
-lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+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;
irsp = &(rspiocb->iocb);
ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_PRLI_SND;
- spin_unlock_irq(phba->host->host_lock);
+ 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:0103 PRLI completes to NPort x%x "
- "Data: x%x x%x x%x x%x\n",
- phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
- irsp->un.ulpWord[4], irsp->ulpTimeout,
- phba->num_disc_nodes);
-
- phba->fc_prli_sent--;
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0103 PRLI completes to NPort x%x "
+ "Data: x%x x%x x%x x%x\n",
+ 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(phba))
+ if (lpfc_els_chk_latt(vport))
goto out;
if (irsp->ulpStatus) {
}
/* PRLI failed */
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
- if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
- ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
- (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
- (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
+ if (lpfc_error_lost_link(irsp))
goto out;
- } else {
- lpfc_disc_state_machine(phba, ndlp, cmdiocb,
- NLP_EVT_CMPL_PRLI);
- }
- } else {
+ else
+ lpfc_disc_state_machine(vport, ndlp, cmdiocb,
+ NLP_EVT_CMPL_PRLI);
+ } else
/* Good status, call state machine */
- lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI);
- }
-
+ lpfc_disc_state_machine(vport, ndlp, cmdiocb,
+ NLP_EVT_CMPL_PRLI);
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_issue_els_prli - Issue a prli iocb command for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues a Process Login (PRLI) ELS command for the
+ * @vport. The PRLI service parameters are set up in the payload of the
+ * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
+ * is put to the IOCB completion callback func field before invoking the
+ * routine lpfc_sli_issue_iocb() to send out PRLI command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the PRLI ELS command.
+ *
+ * Return code
+ * 0 - successfully issued prli iocb command for @vport
+ * 1 - failed to issue prli iocb command for @vport
+ **/
int
-lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+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(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_PRLI);
+ 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;
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)));
+ memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
*((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
/* For PRLI, remainder of payload is PRLI parameter page */
npr = (PRLI *) pcmd;
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(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_PRLI_SND;
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
+ spin_unlock_irq(shost->host_lock);
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
+ IOCB_ERROR) {
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_PRLI_SND;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
- phba->fc_prli_sent++;
+ vport->fc_prli_sent++;
return 0;
}
+/**
+ * lpfc_rscn_disc - Perform rscn discovery for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine performs Registration State Change Notification (RSCN)
+ * discovery for a @vport. If the @vport's node port recovery count is not
+ * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
+ * the nodes that need recovery. If none of the PLOGI were needed through
+ * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
+ * invoked to check and handle possible more RSCN came in during the period
+ * of processing the current ones.
+ **/
static void
-lpfc_more_adisc(struct lpfc_hba * phba)
+lpfc_rscn_disc(struct lpfc_vport *vport)
{
- int sentadisc;
-
- if (phba->num_disc_nodes)
- phba->num_disc_nodes--;
-
- /* Continue discovery with <num_disc_nodes> ADISCs to go */
- lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
- "%d:0210 Continue discovery with %d ADISCs to go "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt,
- phba->fc_flag, phba->hba_state);
+ lpfc_can_disctmo(vport);
- /* Check to see if there are more ADISCs to be sent */
- if (phba->fc_flag & FC_NLP_MORE) {
- lpfc_set_disctmo(phba);
+ /* RSCN discovery */
+ /* go thru NPR nodes and issue ELS PLOGIs */
+ if (vport->fc_npr_cnt)
+ if (lpfc_els_disc_plogi(vport))
+ return;
- /* go thru NPR list and issue any remaining ELS ADISCs */
- sentadisc = lpfc_els_disc_adisc(phba);
- }
- return;
+ lpfc_end_rscn(vport);
}
+/**
+ * lpfc_adisc_done - Complete the adisc phase of discovery
+ * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
+ *
+ * This function is called when the final ADISC is completed during discovery.
+ * This function handles clearing link attention or issuing reg_vpi depending
+ * on whether npiv is enabled. This function also kicks off the PLOGI phase of
+ * discovery.
+ * This function is called with no locks held.
+ **/
static void
-lpfc_rscn_disc(struct lpfc_hba * phba)
+lpfc_adisc_done(struct lpfc_vport *vport)
{
- /* RSCN discovery */
- /* go thru NPR list and issue ELS PLOGIs */
- if (phba->fc_npr_cnt) {
- if (lpfc_els_disc_plogi(phba))
- return;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+
+ /*
+ * 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) &&
+ (phba->sli_rev < LPFC_SLI_REV4)) {
+ lpfc_issue_reg_vpi(phba, vport);
+ return;
}
- if (phba->fc_flag & FC_RSCN_MODE) {
- /* Check to see if more RSCNs came in while we were
- * processing this one.
- */
- if ((phba->fc_rscn_id_cnt == 0) &&
- (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_RSCN_MODE;
- spin_unlock_irq(phba->host->host_lock);
- } else {
- lpfc_els_handle_rscn(phba);
+ /*
+ * 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);
+ lpfc_end_rscn(vport);
+ }
}
+ vport->port_state = LPFC_VPORT_READY;
+ } else
+ lpfc_rscn_disc(vport);
+}
+
+/**
+ * lpfc_more_adisc - Issue more adisc as needed
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine determines whether there are more ndlps on a @vport
+ * node list need to have Address Discover (ADISC) issued. If so, it will
+ * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
+ * remaining nodes which need to have ADISC sent.
+ **/
+void
+lpfc_more_adisc(struct lpfc_vport *vport)
+{
+ int sentadisc;
+
+ if (vport->num_disc_nodes)
+ vport->num_disc_nodes--;
+ /* Continue discovery with <num_disc_nodes> ADISCs to go */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0210 Continue discovery with %d ADISCs to go "
+ "Data: x%x x%x x%x\n",
+ 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);
}
+ if (!vport->num_disc_nodes)
+ lpfc_adisc_done(vport);
+ return;
}
+/**
+ * lpfc_cmpl_els_adisc - Completion callback function for adisc
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion function for issuing the Address Discover
+ * (ADISC) command. It first checks to see whether link went down during
+ * the discovery process. If so, the node will be marked as node port
+ * recovery for issuing discover IOCB by the link attention handler and
+ * exit. Otherwise, the response status is checked. If error was reported
+ * in the response status, the ADISC command shall be retried by invoking
+ * the lpfc_els_retry() routine. Otherwise, if no error was reported in
+ * the response status, the state machine is invoked to set transition
+ * with respect to NLP_EVT_CMPL_ADISC event.
+ **/
static void
-lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+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_sli *psli;
struct lpfc_nodelist *ndlp;
- LPFC_MBOXQ_t *mbox;
- int disc, rc;
-
- psli = &phba->sli;
+ 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);
- spin_lock_irq(phba->host->host_lock);
ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
- spin_unlock_irq(phba->host->host_lock);
-
+ spin_unlock_irq(shost->host_lock);
/* ADISC completes to NPort <nlp_DID> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0104 ADISC completes to NPort x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
- irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
- phba->num_disc_nodes);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0104 ADISC completes to NPort x%x "
+ "Data: x%x x%x x%x x%x x%x\n",
+ 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(phba)) {
- spin_lock_irq(phba->host->host_lock);
+ if (lpfc_els_chk_latt(vport)) {
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
goto out;
}
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- spin_unlock_irq(phba->host->host_lock);
- lpfc_set_disctmo(phba);
+ 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 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
- ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
- (irsp->un.ulpWord[4] != IOERR_LINK_DOWN) &&
- (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) {
- lpfc_disc_state_machine(phba, ndlp, cmdiocb,
- NLP_EVT_CMPL_ADISC);
- }
- } else {
+ 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(phba, ndlp, cmdiocb,
+ lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_ADISC);
- }
- if (disc && phba->num_disc_nodes) {
- /* Check to see if there are more ADISCs to be sent */
- lpfc_more_adisc(phba);
-
- /* Check to see if we are done with ADISC authentication */
- if (phba->num_disc_nodes == 0) {
- lpfc_can_disctmo(phba);
- /* If we get here, there is nothing left to wait for */
- if ((phba->hba_state < LPFC_HBA_READY) &&
- (phba->hba_state != LPFC_CLEAR_LA)) {
- /* Link up discovery */
- if ((mbox = mempool_alloc(phba->mbox_mem_pool,
- GFP_KERNEL))) {
- phba->hba_state = LPFC_CLEAR_LA;
- lpfc_clear_la(phba, mbox);
- mbox->mbox_cmpl =
- lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox
- (phba, mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free(mbox,
- phba->mbox_mem_pool);
- lpfc_disc_flush_list(phba);
- psli->ring[(psli->ip_ring)].
- flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->fcp_ring)].
- flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->next_ring)].
- flag &=
- ~LPFC_STOP_IOCB_EVENT;
- phba->hba_state =
- LPFC_HBA_READY;
- }
- }
- } else {
- lpfc_rscn_disc(phba);
- }
- }
- }
+ /* Check to see if there are more ADISCs to be sent */
+ if (disc && vport->num_disc_nodes)
+ lpfc_more_adisc(vport);
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
+ * @vport: pointer to a virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues an Address Discover (ADISC) for an @ndlp on a
+ * @vport. It prepares the payload of the ADISC ELS command, updates the
+ * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
+ * to issue the ADISC ELS command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the ADISC ELS command.
+ *
+ * Return code
+ * 0 - successfully issued adisc
+ * 1 - failed to issue adisc
+ **/
int
-lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+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_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 (ADISC));
- elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_ADISC);
+ 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;
/* For ADISC request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
/* Fill in ADISC payload */
ap = (ADISC *) pcmd;
ap->hardAL_PA = phba->fc_pref_ALPA;
- memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
- memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
- ap->DID = be32_to_cpu(phba->fc_myDID);
+ 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(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_ADISC_SND;
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
+ spin_unlock_irq(shost->host_lock);
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
+ IOCB_ERROR) {
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_ADISC_SND;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
return 0;
}
+/**
+ * lpfc_cmpl_els_logo - Completion callback function for logo
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion function for issuing the ELS Logout (LOGO)
+ * command. If no error status was reported from the LOGO response, the
+ * state machine of the associated ndlp shall be invoked for transition with
+ * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
+ * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
+ **/
static void
-lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+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;
- 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(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
- spin_unlock_irq(phba->host->host_lock);
+ 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:0105 LOGO completes to NPort x%x "
- "Data: x%x x%x x%x x%x\n",
- phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
- irsp->un.ulpWord[4], irsp->ulpTimeout,
- phba->num_disc_nodes);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0105 LOGO completes to NPort x%x "
+ "Data: x%x x%x x%x x%x\n",
+ 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(phba))
+ 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)) {
+ 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 ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
- ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
- (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
- (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
+ if (lpfc_error_lost_link(irsp))
goto out;
- } else {
- lpfc_disc_state_machine(phba, ndlp, cmdiocb,
- NLP_EVT_CMPL_LOGO);
- }
- } else {
+ 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(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
- }
-
+ lpfc_disc_state_machine(vport, ndlp, cmdiocb,
+ NLP_EVT_CMPL_LOGO);
out:
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_issue_els_logo - Issue a logo to an node on a vport
+ * @vport: pointer to a virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine constructs and issues an ELS Logout (LOGO) iocb command
+ * to a remote node, referred by an @ndlp on a @vport. It constructs the
+ * payload of the IOCB, properly sets up the @ndlp state, and invokes the
+ * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the LOGO ELS command.
+ *
+ * Return code
+ * 0 - successfully issued logo
+ * 1 - failed to issue logo
+ **/
int
-lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+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];
+ spin_lock_irq(shost->host_lock);
+ if (ndlp->nlp_flag & NLP_LOGO_SND) {
+ spin_unlock_irq(shost->host_lock);
+ return 0;
+ }
+ spin_unlock_irq(shost->host_lock);
- cmdsize = (2 * sizeof (uint32_t)) + sizeof (struct lpfc_name);
- elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_LOGO);
+ 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);
+ pcmd += sizeof(uint32_t);
/* Fill in LOGO payload */
- *((uint32_t *) (pcmd)) = be32_to_cpu(phba->fc_myDID);
- pcmd += sizeof (uint32_t);
- memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name));
+ *((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(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_LOGO_SND;
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
+ spin_unlock_irq(shost->host_lock);
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
+
+ if (rc == IOCB_ERROR) {
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
return 0;
}
+/**
+ * lpfc_cmpl_els_cmd - Completion callback function for generic els command
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is a generic completion callback function for ELS commands.
+ * Specifically, it is the callback function which does not need to perform
+ * any command specific operations. It is currently used by the ELS command
+ * issuing routines for the ELS State Change Request (SCR),
+ * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
+ * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
+ * certain debug loggings, this callback function simply invokes the
+ * lpfc_els_chk_latt() routine to check whether link went down during the
+ * discovery process.
+ **/
static void
-lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+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:0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
- phba->brd_no,
- irsp->ulpIoTag, irsp->ulpStatus,
- irsp->un.ulpWord[4], irsp->ulpTimeout);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
+ irsp->ulpIoTag, irsp->ulpStatus,
+ irsp->un.ulpWord[4], irsp->ulpTimeout);
/* Check to see if link went down during discovery */
- lpfc_els_chk_latt(phba);
+ lpfc_els_chk_latt(vport);
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_issue_els_scr - Issue a scr to an node on a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @nportid: N_Port identifier to the remote node.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues a State Change Request (SCR) to a fabric node
+ * on a @vport. The remote node @nportid is passed into the function. It
+ * first search the @vport node list to find the matching ndlp. If no such
+ * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
+ * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
+ * routine is invoked to send the SCR IOCB.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the SCR ELS command.
+ *
+ * Return code
+ * 0 - Successfully issued scr command
+ * 1 - Failed to issue scr command
+ **/
int
-lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
+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;
+ cmdsize = (sizeof(uint32_t) + sizeof(SCR));
+
+ ndlp = lpfc_findnode_did(vport, nportid);
+ if (!ndlp) {
+ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp)
+ return 1;
+ lpfc_nlp_init(vport, ndlp, nportid);
+ lpfc_enqueue_node(vport, ndlp);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ return 1;
+ }
- lpfc_nlp_init(phba, ndlp, nportid);
+ elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
+ ndlp->nlp_DID, ELS_CMD_SCR);
- elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_SCR);
if (!elsiocb) {
- mempool_free( ndlp, phba->nlp_mem_pool);
+ /* This will trigger the release of the node just
+ * allocated
+ */
+ lpfc_nlp_put(ndlp);
return 1;
}
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_SCR;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
/* For SCR, remainder of payload is SCR parameter page */
- memset(pcmd, 0, sizeof (SCR));
+ 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;
- spin_lock_irq(phba->host->host_lock);
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
- spin_unlock_irq(phba->host->host_lock);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
+ IOCB_ERROR) {
+ /* The additional lpfc_nlp_put will cause the following
+ * lpfc_els_free_iocb routine to trigger the rlease of
+ * the node.
+ */
+ lpfc_nlp_put(ndlp);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ /* This will cause the callback-function lpfc_cmpl_els_cmd to
+ * trigger the release of node.
+ */
+ lpfc_nlp_put(ndlp);
return 0;
}
+/**
+ * lpfc_issue_els_farpr - Issue a farp to an node on a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @nportid: N_Port identifier to the remote node.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine issues a Fibre Channel Address Resolution Response
+ * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
+ * is passed into the function. It first search the @vport node list to find
+ * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
+ * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
+ * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the PARPR ELS command.
+ *
+ * Return code
+ * 0 - Successfully issued farpr command
+ * 1 - Failed to issue farpr command
+ **/
static int
-lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
+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;
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(phba, ndlp, nportid);
+ cmdsize = (sizeof(uint32_t) + sizeof(FARP));
+
+ ndlp = lpfc_findnode_did(vport, nportid);
+ if (!ndlp) {
+ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp)
+ return 1;
+ lpfc_nlp_init(vport, ndlp, nportid);
+ lpfc_enqueue_node(vport, ndlp);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ return 1;
+ }
- elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
- ndlp->nlp_DID, ELS_CMD_RNID);
+ elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
+ ndlp->nlp_DID, ELS_CMD_RNID);
if (!elsiocb) {
- mempool_free( ndlp, phba->nlp_mem_pool);
+ /* This will trigger the release of the node just
+ * allocated
+ */
+ lpfc_nlp_put(ndlp);
return 1;
}
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
/* Fill in FARPR payload */
fp = (FARP *) (pcmd);
- memset(fp, 0, sizeof (FARP));
+ memset(fp, 0, sizeof(FARP));
lp = (uint32_t *) pcmd;
*lp++ = be32_to_cpu(nportid);
- *lp++ = be32_to_cpu(phba->fc_myDID);
+ *lp++ = be32_to_cpu(vport->fc_myDID);
fp->Rflags = 0;
fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
- memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name));
- memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
- if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) {
+ 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 && NLP_CHK_NODE_ACT(ondlp)) {
memcpy(&fp->OportName, &ondlp->nlp_portname,
- sizeof (struct lpfc_name));
+ sizeof(struct lpfc_name));
memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
- sizeof (struct lpfc_name));
+ 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;
- spin_lock_irq(phba->host->host_lock);
- if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
- spin_unlock_irq(phba->host->host_lock);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
+ IOCB_ERROR) {
+ /* The additional lpfc_nlp_put will cause the following
+ * lpfc_els_free_iocb routine to trigger the release of
+ * the node.
+ */
+ lpfc_nlp_put(ndlp);
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
- spin_unlock_irq(phba->host->host_lock);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ /* This will cause the callback-function lpfc_cmpl_els_cmd to
+ * trigger the release of the node.
+ */
+ lpfc_nlp_put(ndlp);
return 0;
}
+/**
+ * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @nlp: pointer to a node-list data structure.
+ *
+ * This routine cancels the timer with a delayed IOCB-command retry for
+ * a @vport's @ndlp. It stops the timer for the delayed function retrial and
+ * removes the ELS retry event if it presents. In addition, if the
+ * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
+ * commands are sent for the @vport's nodes that require issuing discovery
+ * ADISC.
+ **/
void
-lpfc_cancel_retry_delay_tmo(struct lpfc_hba *phba, struct lpfc_nodelist * nlp)
+lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_work_evt *evtp;
+
+ if (!(nlp->nlp_flag & NLP_DELAY_TMO))
+ return;
+ 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))
+ if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
list_del_init(&nlp->els_retry_evt.evt_listp);
-
+ /* Decrement nlp reference count held for the delayed retry */
+ evtp = &nlp->els_retry_evt;
+ lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
+ }
if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
+ spin_lock_irq(shost->host_lock);
nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
- if (phba->num_disc_nodes) {
- /* Check to see if there are more
- * PLOGIs to be sent
- */
- lpfc_more_plogi(phba);
-
- if (phba->num_disc_nodes == 0) {
- phba->fc_flag &= ~FC_NDISC_ACTIVE;
- lpfc_can_disctmo(phba);
- if (phba->fc_flag & FC_RSCN_MODE) {
- /*
- * Check to see if more RSCNs
- * came in while we were
- * processing this one.
- */
- if((phba->fc_rscn_id_cnt==0) &&
- !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
- phba->fc_flag &= ~FC_RSCN_MODE;
- }
- else {
- lpfc_els_handle_rscn(phba);
- }
+ spin_unlock_irq(shost->host_lock);
+ if (vport->num_disc_nodes) {
+ if (vport->port_state < LPFC_VPORT_READY) {
+ /* Check if there are more ADISCs to be sent */
+ lpfc_more_adisc(vport);
+ } else {
+ /* Check 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;
}
+/**
+ * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
+ * @ptr: holder for the pointer to the timer function associated data (ndlp).
+ *
+ * This routine is invoked by the ndlp delayed-function timer to check
+ * whether there is any pending ELS retry event(s) with the node. If not, it
+ * simply returns. Otherwise, if there is at least one ELS delayed event, it
+ * adds the delayed events to the HBA work list and invokes the
+ * lpfc_worker_wake_up() routine to wake up worker thread to process the
+ * event. Note that lpfc_nlp_get() is called before posting the event to
+ * the work list to hold reference count of ndlp so that it guarantees the
+ * reference to ndlp will still be available when the worker thread gets
+ * to the event associated with the ndlp.
+ **/
void
lpfc_els_retry_delay(unsigned long ptr)
{
- struct lpfc_nodelist *ndlp;
- struct lpfc_hba *phba;
- unsigned long iflag;
- struct lpfc_work_evt *evtp;
-
- ndlp = (struct lpfc_nodelist *)ptr;
- phba = ndlp->nlp_phba;
- evtp = &ndlp->els_retry_evt;
+ 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;
- spin_lock_irqsave(phba->host->host_lock, iflag);
+ spin_lock_irqsave(&phba->hbalock, flags);
if (!list_empty(&evtp->evt_listp)) {
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ 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)
- wake_up(phba->work_wait);
-
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ /* We need to hold the node by incrementing the reference
+ * count until the queued work is done
+ */
+ evtp->evt_arg1 = lpfc_nlp_get(ndlp);
+ if (evtp->evt_arg1) {
+ evtp->evt = LPFC_EVT_ELS_RETRY;
+ list_add_tail(&evtp->evt_listp, &phba->work_list);
+ lpfc_worker_wake_up(phba);
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
+/**
+ * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine is the worker-thread handler for processing the @ndlp delayed
+ * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
+ * the last ELS command from the associated ndlp and invokes the proper ELS
+ * function according to the delayed ELS command to retry the command.
+ **/
void
lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
{
- struct lpfc_hba *phba;
- uint32_t cmd;
- uint32_t did;
- uint8_t retry;
+ struct lpfc_vport *vport = ndlp->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ uint32_t cmd, did, retry;
- phba = ndlp->nlp_phba;
- spin_lock_irq(phba->host->host_lock);
+ 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(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
return;
}
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
/*
* If a discovery event readded nlp_delayfunc after timer
* firing and before processing the timer, cancel the
switch (cmd) {
case ELS_CMD_FLOGI:
- lpfc_issue_els_flogi(phba, ndlp, retry);
+ lpfc_issue_els_flogi(vport, ndlp, retry);
break;
case ELS_CMD_PLOGI:
- if(!lpfc_issue_els_plogi(phba, ndlp->nlp_DID, retry)) {
+ if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
}
break;
case ELS_CMD_ADISC:
- if (!lpfc_issue_els_adisc(phba, ndlp, retry)) {
+ if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
}
break;
case ELS_CMD_PRLI:
- if (!lpfc_issue_els_prli(phba, ndlp, retry)) {
+ if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
}
break;
case ELS_CMD_LOGO:
- if (!lpfc_issue_els_logo(phba, ndlp, retry)) {
+ if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
break;
+ case ELS_CMD_FDISC:
+ lpfc_issue_els_fdisc(vport, ndlp, retry);
+ break;
}
return;
}
+/**
+ * lpfc_els_retry - Make retry decision on an els command iocb
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine makes a retry decision on an ELS command IOCB, which has
+ * failed. The following ELS IOCBs use this function for retrying the command
+ * when previously issued command responsed with error status: FLOGI, PLOGI,
+ * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
+ * returned error status, it makes the decision whether a retry shall be
+ * issued for the command, and whether a retry shall be made immediately or
+ * delayed. In the former case, the corresponding ELS command issuing-function
+ * is called to retry the command. In the later case, the ELS command shall
+ * be posted to the ndlp delayed event and delayed function timer set to the
+ * ndlp for the delayed command issusing.
+ *
+ * Return code
+ * 0 - No retry of els command is made
+ * 1 - Immediate or delayed retry of els command is made
+ **/
static int
-lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_iocbq *rspiocb)
{
- IOCB_t *irsp;
- struct lpfc_dmabuf *pcmd;
- struct lpfc_nodelist *ndlp;
+ 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, maxretry;
- int delay;
- uint32_t cmd;
+ int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
+ int logerr = 0;
+ uint32_t cmd = 0;
uint32_t did;
- retry = 0;
- delay = 0;
- maxretry = lpfc_max_els_tries;
- irsp = &rspiocb->iocb;
- ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
- pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
- cmd = 0;
/* Note: context2 may be 0 for internal driver abort
* of delays ELS command.
cmd = *elscmd++;
}
- if(ndlp)
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp))
did = ndlp->nlp_DID;
else {
/* We should only hit this case for retrying PLOGI */
did = irsp->un.elsreq64.remoteID;
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
- if (!ndlp && (cmd != ELS_CMD_PLOGI))
+ ndlp = lpfc_findnode_did(vport, did);
+ if ((!ndlp || !NLP_CHK_NODE_ACT(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:
case IOSTAT_LOCAL_REJECT:
switch ((irsp->un.ulpWord[4] & 0xff)) {
case IOERR_LOOP_OPEN_FAILURE:
- if (cmd == ELS_CMD_PLOGI) {
- if (cmdiocb->retry == 0) {
- delay = 1;
+ if (cmd == ELS_CMD_FLOGI) {
+ if (PCI_DEVICE_ID_HORNET ==
+ phba->pcidev->device) {
+ phba->fc_topology = TOPOLOGY_LOOP;
+ phba->pport->fc_myDID = 0;
+ phba->alpa_map[0] = 0;
+ phba->alpa_map[1] = 0;
}
}
+ if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
+ delay = 1000;
retry = 1;
break;
- case IOERR_SEQUENCE_TIMEOUT:
+ case IOERR_ILLEGAL_COMMAND:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0124 Retry illegal cmd x%x "
+ "retry:x%x delay:x%x\n",
+ cmd, cmdiocb->retry, delay);
retry = 1;
+ /* All command's retry policy */
+ maxretry = 8;
+ if (cmdiocb->retry > 2)
+ delay = 1000;
break;
case IOERR_NO_RESOURCES:
- if (cmd == ELS_CMD_PLOGI) {
- delay = 1;
- }
+ logerr = 1; /* HBA out of 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;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
+ logerr = 1; /* Fabric / Remote NPort out of resources */
retry = 1;
break;
if (stat.un.b.lsRjtRsnCodeExp ==
LSEXP_CMD_IN_PROGRESS) {
if (cmd == ELS_CMD_PLOGI) {
- delay = 1;
+ delay = 1000;
maxretry = 48;
}
retry = 1;
break;
}
if (cmd == ELS_CMD_PLOGI) {
- delay = 1;
+ 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0125 FDISC Failed (x%x). "
+ "Fabric out of resources\n",
+ stat.un.lsRjtError);
+ lpfc_vport_set_state(vport,
+ FC_VPORT_NO_FABRIC_RSCS);
+ }
break;
case LSRJT_LOGICAL_BSY:
- if (cmd == ELS_CMD_PLOGI) {
- delay = 1;
+ if ((cmd == ELS_CMD_PLOGI) ||
+ (cmd == ELS_CMD_PRLI)) {
+ delay = 1000;
maxretry = 48;
+ } else if (cmd == ELS_CMD_FDISC) {
+ /* FDISC retry policy */
+ maxretry = 48;
+ if (cmdiocb->retry >= 32)
+ delay = 1000;
}
retry = 1;
break;
+
+ case LSRJT_LOGICAL_ERR:
+ /* There are some cases where switches return this
+ * error when they are not ready and should be returning
+ * Logical Busy. We should delay every time.
+ */
+ if (cmd == ELS_CMD_FDISC &&
+ stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
+ maxretry = 3;
+ delay = 1000;
+ retry = 1;
+ break;
+ }
+ 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0122 FDISC Failed (x%x). "
+ "Fabric Detected Bad WWN\n",
+ stat.un.lsRjtError);
+ lpfc_vport_set_state(vport,
+ FC_VPORT_FABRIC_REJ_WWN);
+ }
+ break;
}
break;
if (did == FDMI_DID)
retry = 1;
+ if ((cmd == ELS_CMD_FLOGI) &&
+ (phba->fc_topology != TOPOLOGY_LOOP) &&
+ !lpfc_error_lost_link(irsp)) {
+ /* FLOGI retry policy */
+ retry = 1;
+ maxretry = 48;
+ if (cmdiocb->retry >= 32)
+ delay = 1000;
+ }
+
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:0107 Retry ELS command x%x to remote "
- "NPORT x%x Data: x%x x%x\n",
- phba->brd_no,
- cmd, did, cmdiocb->retry, delay);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0107 Retry ELS command x%x to remote "
+ "NPORT x%x Data: x%x x%x\n",
+ 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 ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) {
/* If discovery / RSCN timer is running, reset it */
- if (timer_pending(&phba->fc_disctmo) ||
- (phba->fc_flag & FC_RSCN_MODE)) {
- lpfc_set_disctmo(phba);
- }
+ if (timer_pending(&vport->fc_disctmo) ||
+ (vport->fc_flag & FC_RSCN_MODE))
+ lpfc_set_disctmo(vport);
}
phba->fc_stat.elsXmitRetry++;
- if (ndlp && delay) {
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
phba->fc_stat.elsDelayRetry++;
ndlp->nlp_retry = cmdiocb->retry;
- mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
+ /* 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;
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ 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(phba, ndlp, cmdiocb->retry);
+ 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) {
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+ lpfc_nlp_set_state(vport, ndlp,
+ NLP_STE_PLOGI_ISSUE);
}
- lpfc_issue_els_plogi(phba, did, cmdiocb->retry);
+ lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
return 1;
case ELS_CMD_ADISC:
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
- lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry);
+ 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;
- ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
- lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry);
+ 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;
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
- lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry);
+ 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:0108 No retry ELS command x%x to remote NPORT x%x "
- "Data: x%x\n",
- phba->brd_no,
- cmd, did, cmdiocb->retry);
+ if (logerr) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0137 No retry ELS command x%x to remote "
+ "NPORT x%x: Out of Resources: Error:x%x/%x\n",
+ cmd, did, irsp->ulpStatus,
+ irsp->un.ulpWord[4]);
+ }
+ else {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0108 No retry ELS command x%x to remote "
+ "NPORT x%x Retried:%d Error:x%x/%x\n",
+ cmd, did, cmdiocb->retry, irsp->ulpStatus,
+ irsp->un.ulpWord[4]);
+ }
+ return 0;
+}
+
+/**
+ * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
+ * @phba: pointer to lpfc hba data structure.
+ * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
+ *
+ * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
+ * associated with a command IOCB back to the lpfc DMA buffer pool. It first
+ * checks to see whether there is a lpfc DMA buffer associated with the
+ * response of the command IOCB. If so, it will be released before releasing
+ * the lpfc DMA buffer associated with the IOCB itself.
+ *
+ * Return code
+ * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
+ **/
+static int
+lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
+{
+ struct lpfc_dmabuf *buf_ptr;
+
+ /* 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);
+ return 0;
+}
+/**
+ * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
+ * @phba: pointer to lpfc hba data structure.
+ * @buf_ptr: pointer to the lpfc dma buffer data structure.
+ *
+ * This routine releases the lpfc Direct Memory Access (DMA) buffer
+ * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
+ * pool.
+ *
+ * Return code
+ * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
+ **/
+static int
+lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
+{
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
return 0;
}
+/**
+ * lpfc_els_free_iocb - Free a command iocb and its associated resources
+ * @phba: pointer to lpfc hba data structure.
+ * @elsiocb: pointer to lpfc els command iocb data structure.
+ *
+ * This routine frees a command IOCB and its associated resources. The
+ * command IOCB data structure contains the reference to various associated
+ * resources, these fields must be set to NULL if the associated reference
+ * not present:
+ * context1 - reference to ndlp
+ * context2 - reference to cmd
+ * context2->next - reference to rsp
+ * context3 - reference to bpl
+ *
+ * It first properly decrements the reference count held on ndlp for the
+ * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
+ * set, it invokes the lpfc_els_free_data() routine to release the Direct
+ * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
+ * adds the DMA buffer the @phba data structure for the delayed release.
+ * If reference to the Buffer Pointer List (BPL) is present, the
+ * lpfc_els_free_bpl() routine is invoked to release the DMA memory
+ * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
+ * invoked to release the IOCB data structure back to @phba IOCBQ list.
+ *
+ * Return code
+ * 0 - Success (currently, always return 0)
+ **/
int
-lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb)
+lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
{
struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
+ struct lpfc_nodelist *ndlp;
+
+ ndlp = (struct lpfc_nodelist *)elsiocb->context1;
+ if (ndlp) {
+ if (ndlp->nlp_flag & NLP_DEFER_RM) {
+ lpfc_nlp_put(ndlp);
+ /* If the ndlp is not being used by another discovery
+ * thread, free it.
+ */
+ if (!lpfc_nlp_not_used(ndlp)) {
+ /* If ndlp is being used by another discovery
+ * thread, just clear NLP_DEFER_RM
+ */
+ ndlp->nlp_flag &= ~NLP_DEFER_RM;
+ }
+ }
+ else
+ lpfc_nlp_put(ndlp);
+ 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);
+ if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
+ /* Firmware could still be in progress of DMAing
+ * payload, so don't free data buffer till after
+ * a hbeat.
+ */
+ elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
+ buf_ptr = elsiocb->context2;
+ elsiocb->context2 = NULL;
+ if (buf_ptr) {
+ buf_ptr1 = NULL;
+ spin_lock_irq(&phba->hbalock);
+ if (!list_empty(&buf_ptr->list)) {
+ list_remove_head(&buf_ptr->list,
+ buf_ptr1, struct lpfc_dmabuf,
+ list);
+ INIT_LIST_HEAD(&buf_ptr1->list);
+ list_add_tail(&buf_ptr1->list,
+ &phba->elsbuf);
+ phba->elsbuf_cnt++;
+ }
+ INIT_LIST_HEAD(&buf_ptr->list);
+ list_add_tail(&buf_ptr->list, &phba->elsbuf);
+ phba->elsbuf_cnt++;
+ spin_unlock_irq(&phba->hbalock);
+ }
+ } else {
+ buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
+ lpfc_els_free_data(phba, buf_ptr1);
}
- 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_els_free_bpl(phba, buf_ptr);
}
- spin_lock_irq(phba->host->host_lock);
lpfc_sli_release_iocbq(phba, elsiocb);
- spin_unlock_irq(phba->host->host_lock);
return 0;
}
+/**
+ * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function to the Logout (LOGO)
+ * Accept (ACC) Response ELS command. This routine is invoked to indicate
+ * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
+ * release the ndlp if it has the last reference remaining (reference count
+ * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
+ * field to NULL to inform the following lpfc_els_free_iocb() routine no
+ * ndlp reference count needs to be decremented. Otherwise, the ndlp
+ * reference use-count shall be decremented by the lpfc_els_free_iocb()
+ * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
+ * IOCB data structure.
+ **/
static void
-lpfc_cmpl_els_logo_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_iocbq *rspiocb)
{
- struct lpfc_nodelist *ndlp;
-
- ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
+ 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:0109 ACC to LOGO completes to NPort x%x "
- "Data: x%x x%x x%x\n",
- phba->brd_no, 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_nlp_list(phba, ndlp, NLP_NO_LIST);
- break;
- case NLP_STE_NPR_NODE: /* NPort Recovery mode */
- lpfc_unreg_rpi(phba, ndlp);
- break;
- default:
- break;
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0109 ACC to LOGO completes to NPort x%x "
+ "Data: x%x x%x x%x\n",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
+ ndlp->nlp_rpi);
+
+ if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
+ /* NPort Recovery mode or node is just allocated */
+ if (!lpfc_nlp_not_used(ndlp)) {
+ /* If the ndlp is being used by another discovery
+ * thread, just unregister the RPI.
+ */
+ lpfc_unreg_rpi(vport, ndlp);
+ } else {
+ /* Indicate the node has already released, should
+ * not reference to it from within lpfc_els_free_iocb.
+ */
+ cmdiocb->context1 = NULL;
+ }
}
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
+ * @phba: pointer to lpfc hba data structure.
+ * @pmb: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is the completion callback function for unregister default
+ * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
+ * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
+ * decrements the ndlp reference count held for this completion callback
+ * function. After that, it invokes the lpfc_nlp_not_used() to check
+ * whether there is only one reference left on the ndlp. If so, it will
+ * perform one more decrement and trigger the release of the ndlp.
+ **/
+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;
+
+ /*
+ * This routine is used to register and unregister in previous SLI
+ * modes.
+ */
+ if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
+ (phba->sli_rev == LPFC_SLI_REV4))
+ lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
+
+ pmb->context1 = NULL;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
+ lpfc_nlp_put(ndlp);
+ /* This is the end of the default RPI cleanup logic for this
+ * ndlp. If no other discovery threads are using this ndlp.
+ * we should free all resources associated with it.
+ */
+ lpfc_nlp_not_used(ndlp);
+ }
+
+ return;
+}
+
+/**
+ * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function for ELS Response IOCB
+ * command. In normal case, this callback function just properly sets the
+ * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
+ * field in the command IOCB is not NULL, the referred mailbox command will
+ * be send out, and then invokes the lpfc_els_free_iocb() routine to release
+ * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
+ * link down event occurred during the discovery, the lpfc_nlp_not_used()
+ * routine shall be invoked trying to release the ndlp if no other threads
+ * are currently referring it.
+ **/
static void
-lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_iocbq * rspiocb)
+lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_iocbq *rspiocb)
{
- struct lpfc_nodelist *ndlp;
+ 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;
+ uint8_t *pcmd;
LPFC_MBOXQ_t *mbox = NULL;
+ struct lpfc_dmabuf *mp = NULL;
+ uint32_t ls_rjt = 0;
+
+ irsp = &rspiocb->iocb;
- ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
if (cmdiocb->context_un.mbox)
mbox = cmdiocb->context_un.mbox;
+ /* First determine if this is a LS_RJT cmpl. Note, this callback
+ * function can have cmdiocb->contest1 (ndlp) field set to NULL.
+ */
+ pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
+ (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
+ /* A LS_RJT associated with Default RPI cleanup has its own
+ * seperate code path.
+ */
+ if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
+ ls_rjt = 1;
+ }
/* Check to see if link went down during discovery */
- if ((lpfc_els_chk_latt(phba)) || !ndlp) {
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
if (mbox) {
- mempool_free( mbox, phba->mbox_mem_pool);
+ 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);
}
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
+ (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
+ if (lpfc_nlp_not_used(ndlp)) {
+ ndlp = NULL;
+ /* Indicate the node has already released,
+ * should not reference to it from within
+ * the routine lpfc_els_free_iocb.
+ */
+ cmdiocb->context1 = NULL;
+ }
goto out;
}
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
+ "ELS rsp cmpl: status:x%x/x%x did:x%x",
+ irsp->ulpStatus, irsp->un.ulpWord[4],
+ cmdiocb->iocb.un.elsreq64.remoteID);
/* ELS response tag <ulpIoTag> completes */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%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,
- 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);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0110 ELS response tag x%x completes "
+ "Data: x%x x%x x%x x%x x%x x%x x%x\n",
+ 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(phba, ndlp);
- mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
- mbox->context2 = ndlp;
- ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST);
- if (lpfc_sli_issue_mbox(phba, mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB))
- != MBX_NOT_FINISHED) {
+ lpfc_unreg_rpi(vport, ndlp);
+ /* Increment reference count to ndlp to hold the
+ * reference to ndlp for the callback function.
+ */
+ 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_NOT_FINISHED)
goto out;
+ else
+ /* Decrement the ndlp reference count we
+ * set for this failed mailbox command.
+ */
+ lpfc_nlp_put(ndlp);
+
+ /* ELS rsp: Cannot issue reg_login for <NPortid> */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0138 ELS rsp: Cannot issue reg_login for x%x "
+ "Data: x%x x%x x%x\n",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
+ ndlp->nlp_rpi);
+
+ if (lpfc_nlp_not_used(ndlp)) {
+ ndlp = NULL;
+ /* Indicate node has already been released,
+ * should not reference to it from within
+ * the routine lpfc_els_free_iocb.
+ */
+ cmdiocb->context1 = NULL;
}
- /* NOTE: we should have messages for unsuccessful
- reglogin */
- mempool_free( mbox, phba->mbox_mem_pool);
} else {
- mempool_free( mbox, phba->mbox_mem_pool);
- if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
- ndlp = NULL;
+ /* Do not drop node for lpfc_els_abort'ed ELS cmds */
+ if (!lpfc_error_lost_link(irsp) &&
+ ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
+ if (lpfc_nlp_not_used(ndlp)) {
+ ndlp = NULL;
+ /* Indicate node has already been
+ * released, should not reference
+ * to it from within the routine
+ * lpfc_els_free_iocb.
+ */
+ cmdiocb->context1 = 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(phba->host->host_lock);
- ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
- spin_unlock_irq(phba->host->host_lock);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
+ spin_unlock_irq(shost->host_lock);
+
+ /* If the node is not being used by another discovery thread,
+ * and we are sending a reject, we are done with it.
+ * Release driver reference count here and free associated
+ * resources.
+ */
+ if (ls_rjt)
+ if (lpfc_nlp_not_used(ndlp))
+ /* Indicate node has already been released,
+ * should not reference to it from within
+ * the routine lpfc_els_free_iocb.
+ */
+ cmdiocb->context1 = NULL;
}
+
lpfc_els_free_iocb(phba, cmdiocb);
return;
}
+/**
+ * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @flag: the els command code to be accepted.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @mbox: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine prepares and issues an Accept (ACC) response IOCB
+ * command. It uses the @flag to properly set up the IOCB field for the
+ * specific ACC response command to be issued and invokes the
+ * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
+ * @mbox pointer is passed in, it will be put into the context_un.mbox
+ * field of the IOCB for the completion callback function to issue the
+ * mailbox command to the HBA later when callback is invoked.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the corresponding response ELS IOCB command.
+ *
+ * Return code
+ * 0 - Successfully issued acc response
+ * 1 - Failed to issue acc response
+ **/
int
-lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp,
- LPFC_MBOXQ_t * mbox, uint8_t newnode)
+lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
+ struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
+ LPFC_MBOXQ_t *mbox)
{
+ 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;
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(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, 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);
+ 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(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
+ 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;
elsiocb->context_un.mbox = mbox;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
- pcmd += sizeof (uint32_t);
- memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
+ 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(phba, 0, cmdsize, oldiocb->retry,
+ 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;
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
- sizeof (uint32_t) + sizeof (PRLO));
+ 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)
- elsiocb->context1 = NULL;
-
/* Xmit ELS ACC response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0128 Xmit ELS ACC response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
} else {
- elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
+ elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
}
phba->fc_stat.elsXmitACC++;
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
return 0;
}
+/**
+ * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
+ * @vport: pointer to a virtual N_Port data structure.
+ * @rejectError:
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @mbox: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine prepares and issue an Reject (RJT) response IOCB
+ * command. If a @mbox pointer is passed in, it will be put into the
+ * context_un.mbox field of the IOCB for the completion callback function
+ * to issue to the HBA later.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the reject response ELS IOCB command.
+ *
+ * Return code
+ * 0 - Successfully issued reject response
+ * 1 - Failed to issue reject response
+ **/
int
-lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
+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(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
+ 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;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
*((uint32_t *) (pcmd)) = rejectError;
+ if (mbox)
+ elsiocb->context_un.mbox = mbox;
+
/* Xmit ELS RJT <err> response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0129 Xmit ELS RJT x%x response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- rejectError, elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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_acc;
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+ elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
+
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
return 0;
}
+/**
+ * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
+ * @vport: pointer to a virtual N_Port data structure.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine prepares and issues an Accept (ACC) response to Address
+ * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
+ * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the ADISC Accept response ELS IOCB command.
+ *
+ * Return code
+ * 0 - Successfully issued acc adisc response
+ * 1 - Failed to issue adisc acc response
+ **/
int
-lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
+lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
+ struct lpfc_nodelist *ndlp)
{
+ struct lpfc_hba *phba = vport->phba;
ADISC *ap;
- IOCB_t *icmd;
- IOCB_t *oldcmd;
+ 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]; /* ELS ring */
-
- cmdsize = sizeof (uint32_t) + sizeof (ADISC);
- elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
+ 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;
- /* Xmit ADISC ACC response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0130 Xmit ADISC ACC response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
-
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
+
+ /* Xmit ADISC ACC response tag <ulpIoTag> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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);
+ pcmd += sizeof(uint32_t);
ap = (ADISC *) (pcmd);
ap->hardAL_PA = phba->fc_pref_ALPA;
- memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
- memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
- ap->DID = be32_to_cpu(phba->fc_myDID);
+ 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_acc;
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+ elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
return 0;
}
+/**
+ * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
+ * @vport: pointer to a virtual N_Port data structure.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine prepares and issues an Accept (ACC) response to Process
+ * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
+ * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the PRLI Accept response ELS IOCB command.
+ *
+ * Return code
+ * 0 - Successfully issued acc prli response
+ * 1 - Failed to issue acc prli response
+ **/
int
-lpfc_els_rsp_prli_acc(struct lpfc_hba * phba,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
+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(phba, 0, cmdsize, oldiocb->retry, ndlp,
+ 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;
- /* Xmit PRLI ACC response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0131 Xmit PRLI ACC response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
-
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
+ /* Xmit PRLI ACC response tag <ulpIoTag> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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);
+ pcmd += sizeof(uint32_t);
/* For PRLI, remainder of payload is PRLI parameter page */
- memset(pcmd, 0, sizeof (PRLI));
+ 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 the remote port is a target and our firmware version is 3.20 or
+ * later, set the following bits for FC-TAPE support.
*/
- if (vpd->rev.feaLevelHigh >= 0x02) {
+ if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
+ (vpd->rev.feaLevelHigh >= 0x02)) {
npr->ConfmComplAllowed = 1;
npr->Retry = 1;
npr->TaskRetryIdReq = 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_acc;
+ elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
return 0;
}
+/**
+ * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
+ * @vport: pointer to a virtual N_Port data structure.
+ * @format: rnid command format.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine issues a Request Node Identification Data (RNID) Accept
+ * (ACC) response. It constructs the RNID ACC response command according to
+ * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
+ * issue the response. Note that this command does not need to hold the ndlp
+ * reference count for the callback. So, the ndlp reference count taken by
+ * the lpfc_prep_els_iocb() routine is put back and the context1 field of
+ * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
+ * there is no ndlp reference available.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function. However, for the RNID Accept Response ELS command,
+ * this is undone later by this routine after the IOCB is allocated.
+ *
+ * Return code
+ * 0 - Successfully issued acc rnid response
+ * 1 - Failed to issue acc rnid response
+ **/
static int
-lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba,
- uint8_t format,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
+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;
- IOCB_t *oldcmd;
+ 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));
+ cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
+ + (2 * sizeof(struct lpfc_name));
if (format)
- cmdsize += sizeof (RNID_TOP_DISC);
+ cmdsize += sizeof(RNID_TOP_DISC);
- elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
+ elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
+ ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
- /* Xmit RNID ACC response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0132 Xmit RNID ACC response tag x%x "
- "Data: x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext);
-
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
+ /* Xmit RNID ACC response tag <ulpIoTag> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0132 Xmit RNID ACC response tag x%x xri x%x\n",
+ elsiocb->iotag, elsiocb->iocb.ulpContext);
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
-
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
- pcmd += sizeof (uint32_t);
+ pcmd += sizeof(uint32_t);
- memset(pcmd, 0, sizeof (RNID));
+ memset(pcmd, 0, sizeof(RNID));
rn = (RNID *) (pcmd);
rn->Format = format;
- rn->CommonLen = (2 * sizeof (struct lpfc_name));
- memcpy(&rn->portName, &phba->fc_portname, sizeof (struct lpfc_name));
- memcpy(&rn->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
+ 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);
+ rn->SpecificLen = sizeof(RNID_TOP_DISC);
memcpy(&rn->un.topologyDisc.portName,
- &phba->fc_portname, sizeof (struct lpfc_name));
+ &vport->fc_portname, sizeof(struct lpfc_name));
rn->un.topologyDisc.unitType = RNID_HBA;
rn->un.topologyDisc.physPort = 0;
rn->un.topologyDisc.attachedNodes = 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_acc;
+ elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+ lpfc_nlp_put(ndlp);
elsiocb->context1 = NULL; /* Don't need ndlp for cmpl,
* it could be freed */
- spin_lock_irq(phba->host->host_lock);
- rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
- spin_unlock_irq(phba->host->host_lock);
+ rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
return 0;
}
+/**
+ * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues Address Discover (ADISC) ELS commands to those
+ * N_Ports which are in node port recovery state and ADISC has not been issued
+ * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
+ * lpfc_issue_els_adisc() routine, the per @vport number of discover count
+ * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
+ * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
+ * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
+ * IOCBs quit for later pick up. On the other hand, after walking through
+ * all the ndlps with the @vport and there is none ADISC IOCB issued, the
+ * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
+ * no more ADISC need to be sent.
+ *
+ * Return code
+ * The number of N_Ports with adisc issued.
+ **/
int
-lpfc_els_disc_adisc(struct lpfc_hba * phba)
+lpfc_els_disc_adisc(struct lpfc_vport *vport)
{
- int sentadisc;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
+ int sentadisc = 0;
- sentadisc = 0;
- /* go thru NPR list and issue any remaining ELS ADISCs */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
- if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
- if (ndlp->nlp_flag & NLP_NPR_ADISC) {
- ndlp->nlp_flag &= ~NLP_NPR_ADISC;
- ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
- lpfc_nlp_list(phba, ndlp,
- NLP_ADISC_LIST);
- lpfc_issue_els_adisc(phba, ndlp, 0);
- sentadisc++;
- phba->num_disc_nodes++;
- if (phba->num_disc_nodes >=
- phba->cfg_discovery_threads) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_NLP_MORE;
- spin_unlock_irq(phba->host->host_lock);
- break;
- }
+ /* go thru NPR nodes and issue any remaining ELS ADISCs */
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ 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->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(phba->host->host_lock);
- phba->fc_flag &= ~FC_NLP_MORE;
- spin_unlock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NLP_MORE;
+ spin_unlock_irq(shost->host_lock);
}
return sentadisc;
}
+/**
+ * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
+ * which are in node port recovery state, with a @vport. Each time an ELS
+ * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
+ * the per @vport number of discover count (num_disc_nodes) shall be
+ * incremented. If the num_disc_nodes reaches a pre-configured threshold
+ * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
+ * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
+ * later pick up. On the other hand, after walking through all the ndlps with
+ * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
+ * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
+ * PLOGI need to be sent.
+ *
+ * Return code
+ * The number of N_Ports with plogi issued.
+ **/
int
-lpfc_els_disc_plogi(struct lpfc_hba * phba)
+lpfc_els_disc_plogi(struct lpfc_vport *vport)
{
- int sentplogi;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
+ int sentplogi = 0;
- sentplogi = 0;
- /* go thru NPR list and issue any remaining ELS PLOGIs */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
- if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
- (!(ndlp->nlp_flag & NLP_DELAY_TMO))) {
- if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
- ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
- lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
- sentplogi++;
- phba->num_disc_nodes++;
- if (phba->num_disc_nodes >=
- phba->cfg_discovery_threads) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_NLP_MORE;
- spin_unlock_irq(phba->host->host_lock);
- break;
- }
+ /* go thru NPR nodes and issue any remaining ELS PLOGIs */
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ 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->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(phba->host->host_lock);
- phba->fc_flag &= ~FC_NLP_MORE;
- spin_unlock_irq(phba->host->host_lock);
+ if (sentplogi) {
+ lpfc_set_disctmo(vport);
+ }
+ else {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NLP_MORE;
+ spin_unlock_irq(shost->host_lock);
}
return sentplogi;
}
-int
-lpfc_els_flush_rscn(struct lpfc_hba * phba)
+/**
+ * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine cleans up any Registration State Change Notification
+ * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
+ * @vport together with the host_lock is used to prevent multiple thread
+ * trying to access the RSCN array on a same @vport at the same time.
+ **/
+void
+lpfc_els_flush_rscn(struct lpfc_vport *vport)
{
- struct lpfc_dmabuf *mp;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
int i;
- for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
- mp = phba->fc_rscn_id_list[i];
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- phba->fc_rscn_id_list[i] = NULL;
- }
- phba->fc_rscn_id_cnt = 0;
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
- spin_unlock_irq(phba->host->host_lock);
- lpfc_can_disctmo(phba);
- return 0;
+ spin_lock_irq(shost->host_lock);
+ if (vport->fc_rscn_flush) {
+ /* Another thread is walking fc_rscn_id_list on this vport */
+ spin_unlock_irq(shost->host_lock);
+ return;
+ }
+ /* Indicate we are walking lpfc_els_flush_rscn on this vport */
+ vport->fc_rscn_flush = 1;
+ spin_unlock_irq(shost->host_lock);
+
+ 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);
+ /* Indicate we are done walking this fc_rscn_id_list */
+ vport->fc_rscn_flush = 0;
}
+/**
+ * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @did: remote destination port identifier.
+ *
+ * This routine checks whether there is any pending Registration State
+ * Configuration Notification (RSCN) to a @did on @vport.
+ *
+ * Return code
+ * None zero - The @did matched with a pending rscn
+ * 0 - not able to match @did with a pending rscn
+ **/
int
-lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did)
+lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
{
D_ID ns_did;
D_ID rscn_did;
- struct lpfc_dmabuf *mp;
uint32_t *lp;
- uint32_t payload_len, cmd, i, match;
+ uint32_t payload_len, i;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
ns_did.un.word = did;
- match = 0;
/* Never match fabric nodes for RSCNs */
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
- return(0);
+ return 0;
/* If we are doing a FULL RSCN rediscovery, match everything */
- if (phba->fc_flag & FC_RSCN_DISCOVERY) {
+ if (vport->fc_flag & FC_RSCN_DISCOVERY)
return did;
- }
- for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
- mp = phba->fc_rscn_id_list[i];
- lp = (uint32_t *) mp->virt;
- cmd = *lp++;
- payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
- payload_len -= sizeof (uint32_t); /* take off word 0 */
+ spin_lock_irq(shost->host_lock);
+ if (vport->fc_rscn_flush) {
+ /* Another thread is walking fc_rscn_id_list on this vport */
+ spin_unlock_irq(shost->host_lock);
+ return 0;
+ }
+ /* Indicate we are walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 1;
+ spin_unlock_irq(shost->host_lock);
+ 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 = *lp++;
- rscn_did.un.word = be32_to_cpu(rscn_did.un.word);
- 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) {
- match = did;
- }
+ rscn_did.un.word = be32_to_cpu(*lp++);
+ payload_len -= sizeof(uint32_t);
+ switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
+ case RSCN_ADDRESS_FORMAT_PORT:
+ if ((ns_did.un.b.domain == rscn_did.un.b.domain)
+ && (ns_did.un.b.area == rscn_did.un.b.area)
+ && (ns_did.un.b.id == rscn_did.un.b.id))
+ goto return_did_out;
break;
- case 1: /* Whole N_Port Area effected */
+ case RSCN_ADDRESS_FORMAT_AREA:
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
&& (ns_did.un.b.area == rscn_did.un.b.area))
- {
- match = did;
- }
+ goto return_did_out;
break;
- case 2: /* Whole N_Port Domain effected */
+ case RSCN_ADDRESS_FORMAT_DOMAIN:
if (ns_did.un.b.domain == rscn_did.un.b.domain)
- {
- match = did;
- }
- break;
- case 3: /* Whole Fabric effected */
- match = did;
- break;
- default:
- /* Unknown Identifier in RSCN list */
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0217 Unknown Identifier in "
- "RSCN payload Data: x%x\n",
- phba->brd_no, rscn_did.un.word);
- break;
- }
- if (match) {
+ goto return_did_out;
break;
+ case RSCN_ADDRESS_FORMAT_FABRIC:
+ goto return_did_out;
}
}
}
- return match;
+ /* Indicate we are done with walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 0;
+ return 0;
+return_did_out:
+ /* Indicate we are done with walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 0;
+ return did;
}
+/**
+ * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
+ * state machine for a @vport's nodes that are with pending RSCN (Registration
+ * State Change Notification).
+ *
+ * Return code
+ * 0 - Successful (currently alway return 0)
+ **/
static int
-lpfc_rscn_recovery_check(struct lpfc_hba * phba)
+lpfc_rscn_recovery_check(struct lpfc_vport *vport)
{
- struct lpfc_nodelist *ndlp = NULL, *next_ndlp;
- struct list_head *listp;
- struct list_head *node_list[7];
- int i;
+ struct lpfc_nodelist *ndlp = NULL;
- /* Look at all nodes effected by pending RSCNs and move
- * them to NPR list.
- */
- node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
- node_list[1] = &phba->fc_nlpmap_list;
- node_list[2] = &phba->fc_nlpunmap_list;
- node_list[3] = &phba->fc_prli_list;
- node_list[4] = &phba->fc_reglogin_list;
- node_list[5] = &phba->fc_adisc_list;
- node_list[6] = &phba->fc_plogi_list;
- for (i = 0; i < 7; i++) {
- listp = node_list[i];
- if (list_empty(listp))
+ /* Move all affected nodes by pending RSCNs to NPR state. */
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp) ||
+ (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
+ !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
continue;
-
- list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
- if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID)))
- continue;
-
- lpfc_disc_state_machine(phba, ndlp, NULL,
+ 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(phba, ndlp);
- }
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
}
return 0;
}
+/**
+ * lpfc_send_rscn_event - Send an RSCN event to management application
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ *
+ * lpfc_send_rscn_event sends an RSCN netlink event to management
+ * applications.
+ */
+static void
+lpfc_send_rscn_event(struct lpfc_vport *vport,
+ struct lpfc_iocbq *cmdiocb)
+{
+ struct lpfc_dmabuf *pcmd;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ uint32_t *payload_ptr;
+ uint32_t payload_len;
+ struct lpfc_rscn_event_header *rscn_event_data;
+
+ pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+ payload_ptr = (uint32_t *) pcmd->virt;
+ payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
+
+ rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
+ payload_len, GFP_KERNEL);
+ if (!rscn_event_data) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0147 Failed to allocate memory for RSCN event\n");
+ return;
+ }
+ rscn_event_data->event_type = FC_REG_RSCN_EVENT;
+ rscn_event_data->payload_length = payload_len;
+ memcpy(rscn_event_data->rscn_payload, payload_ptr,
+ payload_len);
+
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ sizeof(struct lpfc_els_event_header) + payload_len,
+ (char *)rscn_event_data,
+ LPFC_NL_VENDOR_ID);
+
+ kfree(rscn_event_data);
+}
+
+/**
+ * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes an unsolicited RSCN (Registration State Change
+ * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
+ * to invoke fc_host_post_event() routine to the FC transport layer. If the
+ * discover state machine is about to begin discovery, it just accepts the
+ * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
+ * contains N_Port IDs for other vports on this HBA, it just accepts the
+ * RSCN and ignore processing it. If the state machine is in the recovery
+ * state, the fc_rscn_id_list of this @vport is walked and the
+ * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
+ * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
+ * routine is invoked to handle the RSCN event.
+ *
+ * Return code
+ * 0 - Just sent the acc response
+ * 1 - Sent the acc response and waited for name server completion
+ **/
static int
-lpfc_els_rcv_rscn(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * ndlp, uint8_t newnode)
+lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
- uint32_t *lp;
+ uint32_t *lp, *datap;
IOCB_t *icmd;
- uint32_t payload_len, cmd;
+ uint32_t payload_len, length, nportid, *cmd;
+ int rscn_cnt;
+ int rscn_id = 0, hba_id = 0;
+ int i;
icmd = &cmdiocb->iocb;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
- cmd = *lp++;
- payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
- payload_len -= sizeof (uint32_t); /* take off word 0 */
- cmd &= ELS_CMD_MASK;
-
+ 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:0214 RSCN received Data: x%x x%x x%x x%x\n",
- phba->brd_no,
- phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0214 RSCN received Data: x%x x%x x%x x%x\n",
+ vport->fc_flag, payload_len, *lp,
+ vport->fc_rscn_id_cnt);
+
+ /* Send an RSCN event to the management application */
+ lpfc_send_rscn_event(vport, cmdiocb);
+
+ 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 (phba->hba_state <= LPFC_NS_QRY) {
- lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
- newnode);
+ 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);
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) &&
+ !(vport->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++;
+ if (lpfc_find_vport_by_did(phba, nportid))
+ hba_id++;
+ }
+ if (rscn_id == hba_id) {
+ /* ALL NPortIDs in RSCN are on HBA */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0219 Ignore RSCN "
+ "Data: x%x x%x x%x x%x\n",
+ vport->fc_flag, payload_len,
+ *lp, vport->fc_rscn_id_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);
+ return 0;
+ }
+ }
+
+ spin_lock_irq(shost->host_lock);
+ if (vport->fc_rscn_flush) {
+ /* Another thread is walking fc_rscn_id_list on this vport */
+ spin_unlock_irq(shost->host_lock);
+ vport->fc_flag |= FC_RSCN_DISCOVERY;
+ /* Send back ACC */
+ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
+ return 0;
+ }
+ /* Indicate we are walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 1;
+ spin_unlock_irq(shost->host_lock);
+ /* Get the array count after successfully have the token */
+ rscn_cnt = vport->fc_rscn_id_cnt;
/* If we are already processing an RSCN, save the received
* RSCN payload buffer, cmdiocb->context2 to process later.
*/
- if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
- if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) &&
- !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_RSCN_MODE;
- spin_unlock_irq(phba->host->host_lock);
- phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
-
- /* If we zero, cmdiocb->context2, the calling
- * routine will not try to free it.
- */
- cmdiocb->context2 = NULL;
-
+ 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);
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_RSCN_DEFERRED;
+ if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
+ !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
+ 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 |= cpu_to_be32(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:0235 Deferred RSCN "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->fc_rscn_id_cnt,
- phba->fc_flag, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0235 Deferred RSCN "
+ "Data: x%x x%x x%x\n",
+ vport->fc_rscn_id_cnt, vport->fc_flag,
+ vport->port_state);
} else {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_RSCN_DISCOVERY;
- spin_unlock_irq(phba->host->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:0234 ReDiscovery RSCN "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->fc_rscn_id_cnt,
- phba->fc_flag, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0234 ReDiscovery RSCN "
+ "Data: x%x x%x x%x\n",
+ vport->fc_rscn_id_cnt, vport->fc_flag,
+ vport->port_state);
}
+ /* Indicate we are done walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 0;
/* Send back ACC */
- lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
- newnode);
-
+ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* send RECOVERY event for ALL nodes that match RSCN payload */
- lpfc_rscn_recovery_check(phba);
+ lpfc_rscn_recovery_check(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_RSCN_DEFERRED;
+ spin_unlock_irq(shost->host_lock);
return 0;
}
-
- phba->fc_flag |= FC_RSCN_MODE;
- phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
+ 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;
+ /* Indicate we are done walking fc_rscn_id_list on this vport */
+ vport->fc_rscn_flush = 0;
/*
* If we zero, cmdiocb->context2, the calling routine will
* not try to free it.
*/
cmdiocb->context2 = NULL;
-
- lpfc_set_disctmo(phba);
-
+ lpfc_set_disctmo(vport);
/* Send back ACC */
- lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
-
+ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* send RECOVERY event for ALL nodes that match RSCN payload */
- lpfc_rscn_recovery_check(phba);
-
- return lpfc_els_handle_rscn(phba);
+ lpfc_rscn_recovery_check(vport);
+ return lpfc_els_handle_rscn(vport);
}
+/**
+ * lpfc_els_handle_rscn - Handle rscn for a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine handles the Registration State Configuration Notification
+ * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
+ * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
+ * if the ndlp to NameServer exists, a Common Transport (CT) command to the
+ * NameServer shall be issued. If CT command to the NameServer fails to be
+ * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
+ * RSCN activities with the @vport.
+ *
+ * Return code
+ * 0 - Cleaned up rscn on the @vport
+ * 1 - Wait for plogi to name server before proceed
+ **/
int
-lpfc_els_handle_rscn(struct lpfc_hba * phba)
+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(phba);
+ lpfc_set_disctmo(vport);
/* RSCN processed */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_DISCOVERY,
- "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n",
- phba->brd_no,
- phba->fc_flag, 0, phba->fc_rscn_id_cnt,
- phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0215 RSCN processed Data: x%x x%x x%x x%x\n",
+ vport->fc_flag, 0, vport->fc_rscn_id_cnt,
+ vport->port_state);
/* To process RSCN, first compare RSCN data with NameServer */
- phba->fc_ns_retry = 0;
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, NameServer_DID);
- if (ndlp) {
+ vport->fc_ns_retry = 0;
+ vport->num_disc_nodes = 0;
+
+ ndlp = lpfc_findnode_did(vport, NameServer_DID);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp)
+ && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
/* Good ndlp, issue CT Request to NameServer */
- if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 0) {
+ 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(phba, NLP_SEARCH_ALL, NameServer_DID);
- if (ndlp) {
+ ndlp = lpfc_findnode_did(vport, NameServer_DID);
+ if (ndlp && NLP_CHK_NODE_ACT(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(phba);
- return 0;
+
+ if (ndlp) {
+ ndlp = lpfc_enable_node(vport, ndlp,
+ NLP_STE_PLOGI_ISSUE);
+ if (!ndlp) {
+ lpfc_els_flush_rscn(vport);
+ return 0;
+ }
+ ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
} else {
- lpfc_nlp_init(phba, ndlp, NameServer_DID);
- ndlp->nlp_type |= NLP_FABRIC;
+ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp) {
+ lpfc_els_flush_rscn(vport);
+ return 0;
+ }
+ lpfc_nlp_init(vport, ndlp, NameServer_DID);
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_issue_els_plogi(phba, NameServer_DID, 0);
- /* Wait for NameServer login cmpl before we can
- continue */
- return 1;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
}
+ ndlp->nlp_type |= NLP_FABRIC;
+ lpfc_issue_els_plogi(vport, NameServer_DID, 0);
+ /* Wait for NameServer login cmpl before we can
+ * continue
+ */
+ return 1;
}
- lpfc_els_flush_rscn(phba);
+ lpfc_els_flush_rscn(vport);
return 0;
}
+/**
+ * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
+ * unsolicited event. An unsolicited FLOGI can be received in a point-to-
+ * point topology. As an unsolicited FLOGI should not be received in a loop
+ * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
+ * lpfc_check_sparm() routine is invoked to check the parameters in the
+ * unsolicited FLOGI. If parameters validation failed, the routine
+ * lpfc_els_rsp_reject() shall be called with reject reason code set to
+ * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
+ * FLOGI shall be compared with the Port WWN of the @vport to determine who
+ * will initiate PLOGI. The higher lexicographical value party shall has
+ * higher priority (as the winning port) and will initiate PLOGI and
+ * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
+ * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
+ * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
+ *
+ * Return code
+ * 0 - Successfully processed the unsolicited flogi
+ * 1 - Failed to process the unsolicited flogi
+ **/
static int
-lpfc_els_rcv_flogi(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * ndlp, uint8_t newnode)
+lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
+ 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;
/* FLOGI received */
- lpfc_set_disctmo(phba);
+ lpfc_set_disctmo(vport);
if (phba->fc_topology == TOPOLOGY_LOOP) {
/* We should never receive a FLOGI in loop mode, ignore it */
/* An FLOGI ELS command <elsCmd> was received from DID <did> in
Loop Mode */
- lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
- "%d:0113 An FLOGI ELS command x%x was received "
- "from DID x%x in Loop Mode\n",
- phba->brd_no, cmd, did);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0113 An FLOGI ELS command x%x was "
+ "received from DID x%x in Loop Mode\n",
+ cmd, did);
return 1;
}
did = Fabric_DID;
- if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) {
+ 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(&phba->fc_portname, &sp->portName,
- sizeof (struct lpfc_name));
+ rc = memcmp(&vport->fc_portname, &sp->portName,
+ sizeof(struct lpfc_name));
if (!rc) {
- if ((mbox = mempool_alloc(phba->mbox_mem_pool,
- GFP_KERNEL)) == 0) {
+ 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->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
- rc = lpfc_sli_issue_mbox
- (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
+ mbox->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED) {
- mempool_free( mbox, phba->mbox_mem_pool);
+ mempool_free(mbox, phba->mbox_mem_pool);
}
return 1;
} else if (rc > 0) { /* greater than */
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_PT2PT_PLOGI;
- spin_unlock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_PT2PT_PLOGI;
+ spin_unlock_irq(shost->host_lock);
}
- phba->fc_flag |= FC_PT2PT;
- phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+ 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(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
+ NULL);
return 1;
}
/* Send back ACC */
- lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
+ lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
return 0;
}
+/**
+ * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Request Node Identification Data (RNID) IOCB
+ * received as an ELS unsolicited event. Only when the RNID specified format
+ * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
+ * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
+ * Accept (ACC) the RNID ELS command. All the other RNID formats are
+ * rejected by invoking the lpfc_els_rsp_reject() routine.
+ *
+ * Return code
+ * 0 - Successfully processed rnid iocb (currently always return 0)
+ **/
static int
-lpfc_els_rcv_rnid(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
+lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
case 0:
case RNID_TOPOLOGY_DISC:
/* Send back ACC */
- lpfc_els_rsp_rnid_acc(phba, rn->Format, cmdiocb, ndlp);
+ lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
break;
default:
/* Reject this request because format not supported */
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
- lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
+ NULL);
}
return 0;
}
+/**
+ * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes a Link Incident Report Registration(LIRR) IOCB
+ * received as an ELS unsolicited event. Currently, this function just invokes
+ * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
+ *
+ * Return code
+ * 0 - Successfully processed lirr iocb (currently always return 0)
+ **/
static int
-lpfc_els_rcv_lirr(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * ndlp)
+lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
struct ls_rjt stat;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
- lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
+/**
+ * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
+ * @phba: pointer to lpfc hba data structure.
+ * @pmb: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is the completion callback function for the MBX_READ_LNK_STAT
+ * mailbox command. This callback function is to actually send the Accept
+ * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
+ * collects the link statistics from the completion of the MBX_READ_LNK_STAT
+ * mailbox command, constructs the RPS response with the link statistics
+ * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
+ * response to the RPS.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the RPS Accept Response ELS IOCB command.
+ *
+ **/
static void
-lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
MAILBOX_t *mb;
IOCB_t *icmd;
RPS_RSP *rps_rsp;
uint16_t xri, status;
uint32_t cmdsize;
- psli = &phba->sli;
- pring = &psli->ring[LPFC_ELS_RING];
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
ndlp = (struct lpfc_nodelist *) pmb->context2;
xri = (uint16_t) ((unsigned long)(pmb->context1));
pmb->context2 = NULL;
if (mb->mbxStatus) {
- mempool_free( pmb, phba->mbox_mem_pool);
+ 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, 0, cmdsize, lpfc_max_els_tries, ndlp,
- ndlp->nlp_DID, ELS_CMD_ACC);
+ 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);
+
+ /* Decrement the ndlp reference count from previous mbox command */
+ lpfc_nlp_put(ndlp);
+
if (!elsiocb)
return;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
- pcmd += sizeof (uint32_t); /* Skip past command */
+ 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->fc_flag & FC_FABRIC)
+ 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);
-
+ rps_rsp->portStatus = cpu_to_be16(status);
+ rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
+ rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
+ rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
+ rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
+ rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
+ rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
/* Xmit ELS RPS ACC response tag <ulpIoTag> */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "%d:0128 Xmit ELS RPS ACC response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
-
- elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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) {
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
lpfc_els_free_iocb(phba, elsiocb);
- }
return;
}
+/**
+ * lpfc_els_rcv_rps - Process an unsolicited rps iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Read Port Status (RPS) IOCB received as an
+ * ELS unsolicited event. It first checks the remote port state. If the
+ * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
+ * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
+ * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
+ * for reading the HBA link statistics. It is for the callback function,
+ * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
+ * to actually sending out RPS Accept (ACC) response.
+ *
+ * Return codes
+ * 0 - Successfully processed rps iocb (currently always return 0)
+ **/
static int
-lpfc_els_rcv_rps(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * ndlp)
+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 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(phba, stat.un.lsRjtError, cmdiocb, ndlp);
- }
+ (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
+ /* reject the unsolicited RPS request and done with it */
+ goto reject_out;
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
if ((flag == 0) ||
((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
- ((flag == 2) && (memcmp(&rps->un.portName, &phba->fc_portname,
- sizeof (struct lpfc_name)) == 0))) {
- if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC))) {
+ ((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 = ndlp;
+ (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) {
+ if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
+ != MBX_NOT_FINISHED)
/* Mbox completion will send ELS Response */
return 0;
- }
+ /* Decrement reference count used for the failed mbox
+ * command.
+ */
+ lpfc_nlp_put(ndlp);
mempool_free(mbox, phba->mbox_mem_pool);
}
}
+
+reject_out:
+ /* issue rejection response */
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(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
+/**
+ * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdsize: size of the ELS command.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
+ * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the RPL Accept Response ELS command.
+ *
+ * Return code
+ * 0 - Successfully issued ACC RPL ELS command
+ * 1 - Failed to issue ACC RPL ELS command
+ **/
static int
-lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
- struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
+lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
+ struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
- IOCB_t *icmd;
- IOCB_t *oldcmd;
+ struct lpfc_hba *phba = vport->phba;
+ IOCB_t *icmd, *oldcmd;
RPL_RSP rpl_rsp;
struct lpfc_iocbq *elsiocb;
- struct lpfc_sli_ring *pring;
- struct lpfc_sli *psli;
uint8_t *pcmd;
- psli = &phba->sli;
- pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
+ elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
+ ndlp->nlp_DID, ELS_CMD_ACC);
- elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
- ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
- pcmd += sizeof (uint16_t);
+ pcmd += sizeof(uint16_t);
*((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
pcmd += sizeof(uint16_t);
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(phba->fc_myDID);
- memcpy(&rpl_rsp.port_num_blk.portName, &phba->fc_portname,
+ 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:0128 Xmit ELS RPL ACC response tag x%x "
- "Data: x%x x%x x%x x%x x%x\n",
- phba->brd_no,
- elsiocb->iocb.ulpIoTag,
- elsiocb->iocb.ulpContext, ndlp->nlp_DID,
- ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
-
- elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "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",
+ 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) {
+ if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
+ IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
+/**
+ * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Read Port List (RPL) IOCB received as an ELS
+ * unsolicited event. It first checks the remote port state. If the remote
+ * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
+ * invokes the lpfc_els_rsp_reject() routine to send reject response.
+ * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
+ * to accept the RPL.
+ *
+ * Return code
+ * 0 - Successfully processed rpl iocb (currently always return 0)
+ **/
static int
-lpfc_els_rcv_rpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * ndlp)
+lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
+ /* issue rejection response */
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(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
+ NULL);
+ /* rejected the unsolicited RPL request and done with it */
+ return 0;
}
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
} else {
cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
}
- lpfc_els_rsp_rpl_acc(phba, cmdsize, cmdiocb, ndlp);
+ lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
return 0;
}
+/**
+ * lpfc_els_rcv_farp - Process an unsolicited farp request els command
+ * @vport: pointer to a virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Fibre Channel Address Resolution Protocol
+ * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
+ * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
+ * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
+ * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
+ * remote PortName is compared against the FC PortName stored in the @vport
+ * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
+ * compared against the FC NodeName stored in the @vport data structure.
+ * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
+ * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
+ * invoked to send out FARP Response to the remote node. Before sending the
+ * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
+ * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
+ * routine is invoked to log into the remote port first.
+ *
+ * Return code
+ * 0 - Either the FARP Match Mode not supported or successfully processed
+ **/
static int
-lpfc_els_rcv_farp(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
+lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
cmd = *lp++;
fp = (FARP *) lp;
-
/* FARP-REQ received from DID <did> */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_IP,
- "%d:0601 FARP-REQ received from DID x%x\n",
- phba->brd_no, did);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0601 FARP-REQ received from DID x%x\n", 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, &phba->fc_portname,
- sizeof (struct lpfc_name)) == 0)
+ 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, &phba->fc_nodename,
- sizeof (struct lpfc_name)) == 0)
+ if (memcmp(&fp->RnodeName, &vport->fc_nodename,
+ sizeof(struct lpfc_name)) == 0)
cnt = 1;
}
/* Log back into the node before sending the FARP. */
if (fp->Rflags & FARP_REQUEST_PLOGI) {
ndlp->nlp_prev_state = ndlp->nlp_state;
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
- lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
+ 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(phba, did, 0);
- }
+ if (fp->Rflags & FARP_REQUEST_FARPR)
+ lpfc_issue_els_farpr(vport, did, 0);
}
}
return 0;
}
+/**
+ * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Fibre Channel Address Resolution Protocol
+ * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
+ * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
+ * the FARP response request.
+ *
+ * Return code
+ * 0 - Successfully processed FARPR IOCB (currently always return 0)
+ **/
static int
-lpfc_els_rcv_farpr(struct lpfc_hba * phba,
- struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
+lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
cmd = *lp++;
/* FARP-RSP received from DID <did> */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_IP,
- "%d:0600 FARP-RSP received from DID x%x\n",
- phba->brd_no, did);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0600 FARP-RSP received from DID x%x\n", did);
/* ACCEPT the Farp resp request */
- lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return 0;
}
+/**
+ * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @fan_ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes a Fabric Address Notification (FAN) IOCB
+ * command received as an ELS unsolicited event. The FAN ELS command will
+ * only be processed on a physical port (i.e., the @vport represents the
+ * physical port). The fabric NodeName and PortName from the FAN IOCB are
+ * compared against those in the phba data structure. If any of those is
+ * different, the lpfc_initial_flogi() routine is invoked to initialize
+ * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
+ * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
+ * is invoked to register login to the fabric.
+ *
+ * Return code
+ * 0 - Successfully processed fan iocb (currently always return 0).
+ **/
static int
-lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
- struct lpfc_nodelist * fan_ndlp)
+lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+ struct lpfc_nodelist *fan_ndlp)
{
- struct lpfc_dmabuf *pcmd;
+ struct lpfc_hba *phba = vport->phba;
uint32_t *lp;
- IOCB_t *icmd;
- uint32_t cmd, did;
FAN *fp;
- struct lpfc_nodelist *ndlp, *next_ndlp;
-
- /* FAN received */
- lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n",
- phba->brd_no);
-
- icmd = &cmdiocb->iocb;
- did = icmd->un.elsreq64.remoteID;
- pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
- lp = (uint32_t *)pcmd->virt;
-
- cmd = *lp++;
- fp = (FAN *)lp;
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
+ lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
+ fp = (FAN *) ++lp;
/* FAN received; Fan does not have a reply sequence */
-
- if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
+ if ((vport == phba->pport) &&
+ (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
- sizeof(struct lpfc_name)) != 0) ||
+ sizeof(struct lpfc_name))) ||
(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,
- &phba->fc_npr_list, nlp_listp) {
-
- if (ndlp->nlp_type & NLP_FABRIC) {
- /*
- * Clean up old Fabric, Nameserver and
- * other NLP_FABRIC logins
- */
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
- } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
- /* Fail outstanding I/O now since this
- * device is marked for PLOGI
- */
- lpfc_unreg_rpi(phba, ndlp);
- }
- }
-
- phba->hba_state = LPFC_FLOGI;
- lpfc_set_disctmo(phba);
- lpfc_initial_flogi(phba);
- return 0;
- }
- /* Discovery not needed,
- * move the nodes to their original state.
- */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
-
- switch (ndlp->nlp_prev_state) {
- case NLP_STE_UNMAPPED_NODE:
- ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
- ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
- break;
-
- case NLP_STE_MAPPED_NODE:
- ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
- ndlp->nlp_state = NLP_STE_MAPPED_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
- break;
-
- default:
- break;
- }
+ sizeof(struct lpfc_name)))) {
+ /* This port has switched fabrics. FLOGI is required */
+ lpfc_initial_flogi(vport);
+ } else {
+ /* FAN verified - skip FLOGI */
+ vport->fc_myDID = vport->fc_prevDID;
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ lpfc_issue_fabric_reglogin(vport);
+ else
+ lpfc_issue_reg_vfi(vport);
}
-
- /* Start discovery - this should just do CLEAR_LA */
- lpfc_disc_start(phba);
}
return 0;
}
+/**
+ * lpfc_els_timeout - Handler funciton to the els timer
+ * @ptr: holder for the timer function associated data.
+ *
+ * This routine is invoked by the ELS timer after timeout. It posts the ELS
+ * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
+ * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
+ * up the worker thread. It is for the worker thread to invoke the routine
+ * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
+ **/
void
lpfc_els_timeout(unsigned long ptr)
{
- struct lpfc_hba *phba;
+ struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t tmo_posted;
unsigned long iflag;
- phba = (struct lpfc_hba *)ptr;
- if (phba == 0)
- return;
- spin_lock_irqsave(phba->host->host_lock, iflag);
- if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
- phba->work_hba_events |= WORKER_ELS_TMO;
- if (phba->work_wait)
- wake_up(phba->work_wait);
- }
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ spin_lock_irqsave(&vport->work_port_lock, iflag);
+ tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
+ if (!tmo_posted)
+ vport->work_port_events |= WORKER_ELS_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, iflag);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
return;
}
+/**
+ * lpfc_els_timeout_handler - Process an els timeout event
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine is the actual handler function that processes an ELS timeout
+ * event. It walks the ELS ring to get and abort all the IOCBs (except the
+ * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
+ * invoking the lpfc_sli_issue_abort_iotag() routine.
+ **/
void
-lpfc_els_timeout_handler(struct lpfc_hba *phba)
+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;
- struct list_head *dlp;
- uint32_t *elscmd;
- uint32_t els_command;
+ uint32_t els_command = 0;
uint32_t timeout;
- uint32_t remote_ID;
+ uint32_t remote_ID = 0xffffffff;
- if (phba == 0)
- return;
- spin_lock_irq(phba->host->host_lock);
- /* If the timer is already canceled do nothing */
- if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
- spin_unlock_irq(phba->host->host_lock);
- return;
- }
+ spin_lock_irq(&phba->hbalock);
timeout = (uint32_t)(phba->fc_ratov << 1);
pring = &phba->sli.ring[LPFC_ELS_RING];
- dlp = &pring->txcmplq;
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
cmd = &piocb->iocb;
- if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
+ 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;
- elscmd = (uint32_t *) (pcmd->virt);
- els_command = *elscmd;
+ if (pcmd)
+ els_command = *(uint32_t *) (pcmd->virt);
- if ((els_command == ELS_CMD_FARP)
- || (els_command == ELS_CMD_FARPR)) {
+ if (els_command == ELS_CMD_FARP ||
+ els_command == ELS_CMD_FARPR ||
+ els_command == ELS_CMD_FDISC)
continue;
- }
if (piocb->drvrTimeout > 0) {
- if (piocb->drvrTimeout >= timeout) {
+ if (piocb->drvrTimeout >= timeout)
piocb->drvrTimeout -= timeout;
- } else {
+ else
piocb->drvrTimeout = 0;
- }
continue;
}
- list_del(&piocb->list);
- pring->txcmplq_cnt--;
-
- if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) {
- struct lpfc_nodelist *ndlp;
- spin_unlock_irq(phba->host->host_lock);
- ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext);
- spin_lock_irq(phba->host->host_lock);
- remote_ID = ndlp->nlp_DID;
- if (cmd->un.elsreq64.bdl.ulpIoTag32) {
- lpfc_sli_issue_abort_iotag32(phba,
- pring, piocb);
- }
- } else {
+ 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 && NLP_CHK_NODE_ACT(ndlp))
+ remote_ID = ndlp->nlp_DID;
}
-
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_ELS,
- "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n",
- phba->brd_no, els_command,
- remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
-
- /*
- * The iocb has timed out; abort it.
- */
- if (piocb->iocb_cmpl) {
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- spin_unlock_irq(phba->host->host_lock);
- (piocb->iocb_cmpl) (phba, piocb, piocb);
- spin_lock_irq(phba->host->host_lock);
- } else
- lpfc_sli_release_iocbq(phba, piocb);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0127 ELS timeout Data: x%x x%x x%x "
+ "x%x\n", els_command,
+ remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
+ lpfc_sli_issue_abort_iotag(phba, pring, piocb);
}
- if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
- mod_timer(&phba->els_tmofunc, jiffies + HZ * timeout);
+ spin_unlock_irq(&phba->hbalock);
- spin_unlock_irq(phba->host->host_lock);
+ if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt)
+ mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
}
+/**
+ * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine is used to clean up all the outstanding ELS commands on a
+ * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
+ * routine. After that, it walks the ELS transmit queue to remove all the
+ * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
+ * the IOCBs with a non-NULL completion callback function, the callback
+ * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
+ * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
+ * callback function, the IOCB will simply be released. Finally, it walks
+ * the ELS transmit completion queue to issue an abort IOCB to any transmit
+ * completion queue IOCB that is associated with the @vport and is not
+ * an IOCB from libdfc (i.e., the management plane IOCBs that are not
+ * part of the discovery state machine) out to HBA by invoking the
+ * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
+ * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
+ * the IOCBs are aborted when this function returns.
+ **/
void
-lpfc_els_flush_cmd(struct lpfc_hba * phba)
+lpfc_els_flush_cmd(struct lpfc_vport *vport)
{
- struct lpfc_sli_ring *pring;
+ 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;
- struct lpfc_dmabuf *pcmd;
- uint32_t *elscmd;
- uint32_t els_command;
- pring = &phba->sli.ring[LPFC_ELS_RING];
- spin_lock_irq(phba->host->host_lock);
+ lpfc_fabric_abort_vport(vport);
+
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
cmd = &piocb->iocb;
}
/* 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)) {
+ 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;
- }
-
- pcmd = (struct lpfc_dmabuf *) piocb->context2;
- elscmd = (uint32_t *) (pcmd->virt);
- els_command = *elscmd;
- list_del(&piocb->list);
- pring->txcmplq_cnt--;
+ if (piocb->vport != vport)
+ continue;
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
-
- if (piocb->iocb_cmpl) {
- spin_unlock_irq(phba->host->host_lock);
- (piocb->iocb_cmpl) (phba, piocb, piocb);
- spin_lock_irq(phba->host->host_lock);
- } else
- lpfc_sli_release_iocbq(phba, piocb);
- }
+ list_move_tail(&piocb->list, &completions);
+ pring->txq_cnt--;
+ }
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
- cmd = &piocb->iocb;
-
if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
continue;
}
- pcmd = (struct lpfc_dmabuf *) piocb->context2;
- elscmd = (uint32_t *) (pcmd->virt);
- els_command = *elscmd;
- list_del(&piocb->list);
- pring->txcmplq_cnt--;
+ if (piocb->vport != vport)
+ continue;
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
+ lpfc_sli_issue_abort_iotag(phba, pring, piocb);
+ }
+ spin_unlock_irq(&phba->hbalock);
- if (piocb->iocb_cmpl) {
- spin_unlock_irq(phba->host->host_lock);
- (piocb->iocb_cmpl) (phba, piocb, piocb);
- spin_lock_irq(phba->host->host_lock);
- } else
- lpfc_sli_release_iocbq(phba, piocb);
+ /* Cancell all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+
+ return;
+}
+
+/**
+ * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is used to clean up all the outstanding ELS commands on a
+ * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
+ * routine. After that, it walks the ELS transmit queue to remove all the
+ * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
+ * the IOCBs with the completion callback function associated, the callback
+ * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
+ * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
+ * callback function associated, the IOCB will simply be released. Finally,
+ * it walks the ELS transmit completion queue to issue an abort IOCB to any
+ * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
+ * management plane IOCBs that are not part of the discovery state machine)
+ * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
+ **/
+void
+lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
+{
+ LIST_HEAD(completions);
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
+ struct lpfc_iocbq *tmp_iocb, *piocb;
+ IOCB_t *cmd = NULL;
+
+ lpfc_fabric_abort_hba(phba);
+ 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;
+ 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;
+ lpfc_sli_issue_abort_iotag(phba, pring, piocb);
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+
return;
}
+/**
+ * lpfc_send_els_failure_event - Posts an ELS command failure event
+ * @phba: Pointer to hba context object.
+ * @cmdiocbp: Pointer to command iocb which reported error.
+ * @rspiocbp: Pointer to response iocb which reported error.
+ *
+ * This function sends an event when there is an ELS command
+ * failure.
+ **/
void
-lpfc_els_unsol_event(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb)
+lpfc_send_els_failure_event(struct lpfc_hba *phba,
+ struct lpfc_iocbq *cmdiocbp,
+ struct lpfc_iocbq *rspiocbp)
{
- struct lpfc_sli *psli;
- struct lpfc_nodelist *ndlp;
- struct lpfc_dmabuf *mp;
- uint32_t *lp;
- IOCB_t *icmd;
+ struct lpfc_vport *vport = cmdiocbp->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_lsrjt_event lsrjt_event;
+ struct lpfc_fabric_event_header fabric_event;
struct ls_rjt stat;
- uint32_t cmd;
- uint32_t did;
- uint32_t newnode;
- uint32_t drop_cmd = 0; /* by default do NOT drop received cmd */
- uint32_t rjt_err = 0;
+ struct lpfc_nodelist *ndlp;
+ uint32_t *pcmd;
- psli = &phba->sli;
- icmd = &elsiocb->iocb;
+ ndlp = cmdiocbp->context1;
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+ return;
- if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
- ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
- /* Not enough posted buffers; Try posting more buffers */
- phba->fc_stat.NoRcvBuf++;
- lpfc_post_buffer(phba, pring, 0, 1);
+ if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
+ lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
+ lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
+ memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
+ sizeof(struct lpfc_name));
+ memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
+ sizeof(struct lpfc_name));
+ pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
+ cmdiocbp->context2)->virt);
+ lsrjt_event.command = *pcmd;
+ stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
+ lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
+ lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ sizeof(lsrjt_event),
+ (char *)&lsrjt_event,
+ LPFC_NL_VENDOR_ID);
+ return;
+ }
+ if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
+ (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
+ fabric_event.event_type = FC_REG_FABRIC_EVENT;
+ if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
+ fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
+ else
+ fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
+ memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
+ sizeof(struct lpfc_name));
+ memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
+ sizeof(struct lpfc_name));
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ sizeof(fabric_event),
+ (char *)&fabric_event,
+ LPFC_NL_VENDOR_ID);
return;
}
- /* If there are no BDEs associated with this IOCB,
- * there is nothing to do.
- */
- if (icmd->ulpBdeCount == 0)
+}
+
+/**
+ * lpfc_send_els_event - Posts unsolicited els event
+ * @vport: Pointer to vport object.
+ * @ndlp: Pointer FC node object.
+ * @cmd: ELS command code.
+ *
+ * This function posts an event when there is an incoming
+ * unsolicited ELS command.
+ **/
+static void
+lpfc_send_els_event(struct lpfc_vport *vport,
+ struct lpfc_nodelist *ndlp,
+ uint32_t *payload)
+{
+ struct lpfc_els_event_header *els_data = NULL;
+ struct lpfc_logo_event *logo_data = NULL;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (*payload == ELS_CMD_LOGO) {
+ logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
+ if (!logo_data) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0148 Failed to allocate memory "
+ "for LOGO event\n");
+ return;
+ }
+ els_data = &logo_data->header;
+ } else {
+ els_data = kmalloc(sizeof(struct lpfc_els_event_header),
+ GFP_KERNEL);
+ if (!els_data) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0149 Failed to allocate memory "
+ "for ELS event\n");
+ return;
+ }
+ }
+ els_data->event_type = FC_REG_ELS_EVENT;
+ switch (*payload) {
+ case ELS_CMD_PLOGI:
+ els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
+ break;
+ case ELS_CMD_PRLO:
+ els_data->subcategory = LPFC_EVENT_PRLO_RCV;
+ break;
+ case ELS_CMD_ADISC:
+ els_data->subcategory = LPFC_EVENT_ADISC_RCV;
+ break;
+ case ELS_CMD_LOGO:
+ els_data->subcategory = LPFC_EVENT_LOGO_RCV;
+ /* Copy the WWPN in the LOGO payload */
+ memcpy(logo_data->logo_wwpn, &payload[2],
+ sizeof(struct lpfc_name));
+ break;
+ default:
+ kfree(els_data);
return;
+ }
+ memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
+ memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
+ if (*payload == ELS_CMD_LOGO) {
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ sizeof(struct lpfc_logo_event),
+ (char *)logo_data,
+ LPFC_NL_VENDOR_ID);
+ kfree(logo_data);
+ } else {
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ sizeof(struct lpfc_els_event_header),
+ (char *)els_data,
+ LPFC_NL_VENDOR_ID);
+ kfree(els_data);
+ }
+
+ return;
+}
+
- /* type of ELS cmd is first 32bit word in packet */
- mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un.
- cont64[0].
- addrHigh,
- icmd->un.
- cont64[0].addrLow));
- if (mp == 0) {
- drop_cmd = 1;
+/**
+ * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
+ * @phba: pointer to lpfc hba data structure.
+ * @pring: pointer to a SLI ring.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @elsiocb: pointer to lpfc els command iocb data structure.
+ *
+ * This routine is used for processing the IOCB associated with a unsolicited
+ * event. It first determines whether there is an existing ndlp that matches
+ * the DID from the unsolicited IOCB. If not, it will create a new one with
+ * the DID from the unsolicited IOCB. The ELS command from the unsolicited
+ * IOCB is then used to invoke the proper routine and to set up proper state
+ * of the discovery state machine.
+ **/
+static void
+lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
+{
+ struct Scsi_Host *shost;
+ 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 || !(elsiocb->context2))
goto dropit;
- }
newnode = 0;
- lp = (uint32_t *) mp->virt;
- cmd = *lp++;
- lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1);
+ payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
+ cmd = *payload;
+ if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
+ lpfc_post_buffer(phba, pring, 1);
+ did = icmd->un.rcvels.remoteID;
if (icmd->ulpStatus) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- drop_cmd = 1;
+ 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(phba)) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- drop_cmd = 1;
+ if (lpfc_els_chk_latt(vport))
goto dropit;
- }
- did = icmd->un.rcvels.remoteID;
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
+ /* 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) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- drop_cmd = 1;
+ if (!ndlp)
goto dropit;
- }
- lpfc_nlp_init(phba, ndlp, did);
+ lpfc_nlp_init(vport, ndlp, did);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
- if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
+ if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
ndlp->nlp_type |= NLP_FABRIC;
- }
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp,
+ NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ goto dropit;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ newnode = 1;
+ if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
+ ndlp->nlp_type |= NLP_FABRIC;
+ } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
+ /* This is similar to the new node path */
+ ndlp = lpfc_nlp_get(ndlp);
+ if (!ndlp)
+ goto dropit;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ newnode = 1;
}
phba->fc_stat.elsRcvFrame++;
- elsiocb->context1 = ndlp;
- elsiocb->context2 = mp;
+
+ 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:0112 ELS command x%x received from NPORT x%x "
- "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+ "0112 ELS command x%x received from NPORT x%x "
+ "Data: x%x\n", 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++;
- if (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
- break;
+ ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
+
+ lpfc_send_els_event(vport, ndlp, payload);
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ if (!(phba->pport->fc_flag & FC_PT2PT) ||
+ (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
+ rjt_err = LSRJT_UNABLE_TPC;
+ break;
+ }
+ /* We get here, and drop thru, if we are PT2PT with
+ * another NPort and the other side has initiated
+ * the PLOGI before responding to our FLOGI.
+ */
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI);
+
+ shost = lpfc_shost_from_vport(vport);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
+ spin_unlock_irq(shost->host_lock);
+
+ 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(phba, elsiocb, ndlp, newnode);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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 (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
+ lpfc_send_els_event(vport, ndlp, payload);
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ rjt_err = LSRJT_UNABLE_TPC;
break;
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
+ 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 (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
+ lpfc_send_els_event(vport, ndlp, payload);
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ rjt_err = LSRJT_UNABLE_TPC;
break;
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
+ lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
break;
case ELS_CMD_RSCN:
phba->fc_stat.elsRcvRSCN++;
- lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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);
+
+ lpfc_send_els_event(vport, ndlp, payload);
phba->fc_stat.elsRcvADISC++;
- if (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ rjt_err = LSRJT_UNABLE_TPC;
break;
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC);
+ 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 (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ rjt_err = LSRJT_UNABLE_TPC;
break;
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC);
+ 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(phba, elsiocb, ndlp);
+ 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(phba, elsiocb, ndlp);
+ 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(phba, elsiocb, ndlp);
+ 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 (phba->hba_state < LPFC_DISC_AUTH) {
- rjt_err = 1;
+ if (vport->port_state < LPFC_DISC_AUTH) {
+ rjt_err = LSRJT_UNABLE_TPC;
break;
}
- lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
+ 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(phba, elsiocb, ndlp);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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(phba, elsiocb, ndlp);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_rps(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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(phba, elsiocb, ndlp);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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(phba, elsiocb, ndlp);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
+ if (newnode)
+ lpfc_nlp_put(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 = 1;
+ rjt_err = LSRJT_INVALID_CMD;
/* Unknown ELS command <elsCmd> received from NPORT <did> */
- lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
- "%d:0115 Unknown ELS command x%x received from "
- "NPORT x%x\n", phba->brd_no, cmd, did);
- if (newnode) {
- mempool_free( ndlp, phba->nlp_mem_pool);
- }
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0115 Unknown ELS command x%x "
+ "received from NPORT x%x\n", cmd, did);
+ if (newnode)
+ lpfc_nlp_put(ndlp);
break;
}
/* check if need to LS_RJT received ELS cmd */
if (rjt_err) {
- stat.un.b.lsRjtRsvd0 = 0;
- stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+ memset(&stat, 0, sizeof(stat));
+ stat.un.b.lsRjtRsnCode = rjt_err;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
- stat.un.b.vendorUnique = 0;
- lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp);
+ lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
+ NULL);
+ }
+
+ lpfc_nlp_put(elsiocb->context1);
+ elsiocb->context1 = NULL;
+ return;
+
+dropit:
+ if (vport && !(vport->load_flag & FC_UNLOADING))
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0111 Dropping received ELS cmd "
+ "Data: x%x x%x x%x\n",
+ icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
+ phba->fc_stat.elsRcvDrop++;
+}
+
+/**
+ * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
+ * @phba: pointer to lpfc hba data structure.
+ * @vpi: host virtual N_Port identifier.
+ *
+ * This routine finds a vport on a HBA (referred by @phba) through a
+ * @vpi. The function walks the HBA's vport list and returns the address
+ * of the vport with the matching @vpi.
+ *
+ * Return code
+ * NULL - No vport with the matching @vpi found
+ * Otherwise - Address to the vport with the matching @vpi.
+ **/
+static struct lpfc_vport *
+lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
+{
+ struct lpfc_vport *vport;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->hbalock, flags);
+ list_for_each_entry(vport, &phba->port_list, listentry) {
+ if (vport->vpi == vpi) {
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ return vport;
+ }
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ return NULL;
+}
+
+/**
+ * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
+ * @phba: pointer to lpfc hba data structure.
+ * @pring: pointer to a SLI ring.
+ * @elsiocb: pointer to lpfc els iocb data structure.
+ *
+ * This routine is used to process an unsolicited event received from a SLI
+ * (Service Level Interface) ring. The actual processing of the data buffer
+ * associated with the unsolicited event is done by invoking the routine
+ * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
+ * SLI ring on which the unsolicited event was received.
+ **/
+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->context1 = NULL;
+ 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);
+ 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
+ vport = lpfc_find_vport_by_vpid(phba,
+ icmd->unsli3.rcvsli3.vpi - phba->vpi_base);
}
+ /* 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.
+ */
if (elsiocb->context2) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
+ lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
+ elsiocb->context2 = NULL;
}
-dropit:
- /* check if need to drop received ELS cmd */
- if (drop_cmd == 1) {
- lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
- "%d:0111 Dropping received ELS cmd "
- "Data: x%x x%x x%x\n", phba->brd_no,
- icmd->ulpStatus, icmd->un.ulpWord[4],
- icmd->ulpTimeout);
- phba->fc_stat.elsRcvDrop++;
+
+ /* 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;
+ }
+ }
+}
+
+/**
+ * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
+ * @phba: pointer to lpfc hba data structure.
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine issues a Port Login (PLOGI) to the Name Server with
+ * State Change Request (SCR) for a @vport. This routine will create an
+ * ndlp for the Name Server associated to the @vport if such node does
+ * not already exist. The PLOGI to Name Server is issued by invoking the
+ * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
+ * (FDMI) is configured to the @vport, a FDMI node will be created and
+ * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
+ **/
+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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0251 NameServer login: no memory\n");
+ return;
+ }
+ lpfc_nlp_init(vport, ndlp, NameServer_DID);
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (!ndlp) {
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ lpfc_disc_start(vport);
+ return;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0348 NameServer login: node freed\n");
+ return;
+ }
+ }
+ 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0252 Cannot issue NameServer login\n");
+ return;
+ }
+
+ if (vport->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;
+ lpfc_nlp_set_state(vport, ndlp_fdmi,
+ NLP_STE_PLOGI_ISSUE);
+ lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID,
+ 0);
+ }
}
return;
}
+
+/**
+ * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
+ * @phba: pointer to lpfc hba data structure.
+ * @pmb: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is the completion callback function to register new vport
+ * mailbox command. If the new vport mailbox command completes successfully,
+ * the fabric registration login shall be performed on physical port (the
+ * new vport created is actually a physical port, with VPI 0) or the port
+ * login to Name Server for State Change Request (SCR) will be performed
+ * on virtual port (real virtual port, with VPI greater than 0).
+ **/
+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->u.mb;
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+
+ if (mb->mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0915 Register VPI failed: 0x%x\n",
+ mb->mbxStatus);
+
+ switch (mb->mbxStatus) {
+ case 0x11: /* unsupported feature */
+ case 0x9603: /* max_vpi exceeded */
+ case 0x9602: /* Link event since CLEAR_LA */
+ /* 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);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ if (vport->port_type == LPFC_PHYSICAL_PORT)
+ lpfc_initial_flogi(vport);
+ else
+ lpfc_initial_fdisc(vport);
+ break;
+ }
+
+ } else {
+ if (vport == phba->pport)
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ lpfc_issue_fabric_reglogin(vport);
+ else
+ lpfc_issue_reg_vfi(vport);
+ else
+ lpfc_do_scr_ns_plogi(phba, vport);
+ }
+
+ /* Now, we decrement the ndlp reference count held for this
+ * callback function
+ */
+ lpfc_nlp_put(ndlp);
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_register_new_vport - Register a new vport with a HBA
+ * @phba: pointer to lpfc hba data structure.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine registers the @vport as a new virtual port with a HBA.
+ * It is done through a registering vpi mailbox command.
+ **/
+static void
+lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
+ struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ LPFC_MBOXQ_t *mbox;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_reg_vpi(vport, 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_NOT_FINISHED) {
+ /* mailbox command not success, decrement ndlp
+ * reference count for this command
+ */
+ lpfc_nlp_put(ndlp);
+ mempool_free(mbox, phba->mbox_mem_pool);
+
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0253 Register VPI: Can't send mbox\n");
+ goto mbox_err_exit;
+ }
+ } else {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0254 Register VPI: no memory\n");
+ goto mbox_err_exit;
+ }
+ return;
+
+mbox_err_exit:
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ return;
+}
+
+/**
+ * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function to a Fabric Discover
+ * (FDISC) ELS command. Since all the FDISC ELS commands are issued
+ * single threaded, each FDISC completion callback function will reset
+ * the discovery timer for all vports such that the timers will not get
+ * unnecessary timeout. The function checks the FDISC IOCB status. If error
+ * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
+ * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
+ * assigned to the vport has been changed with the completion of the FDISC
+ * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
+ * are unregistered from the HBA, and then the lpfc_register_new_vport()
+ * routine is invoked to register new vport with the HBA. Otherwise, the
+ * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
+ * Server for State Change Request (SCR).
+ **/
+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_vlog(vport, KERN_INFO, LOG_ELS,
+ "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
+ 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0126 FDISC failed. (%d/%d)\n",
+ irsp->ulpStatus, irsp->un.ulpWord[4]);
+ goto fdisc_failed;
+ }
+ 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);
+ 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 (!NLP_CHK_NODE_ACT(ndlp) ||
+ (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);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ }
+
+ if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
+ lpfc_register_new_vport(phba, vport, ndlp);
+ else
+ lpfc_do_scr_ns_plogi(phba, vport);
+ goto out;
+fdisc_failed:
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ /* Cancel discovery timer */
+ lpfc_can_disctmo(vport);
+ lpfc_nlp_put(ndlp);
+out:
+ lpfc_els_free_iocb(phba, cmdiocb);
+}
+
+/**
+ * lpfc_issue_els_fdisc - Issue a fdisc iocb command
+ * @vport: pointer to a virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ * @retry: number of retries to the command IOCB.
+ *
+ * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
+ * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
+ * routine to issue the IOCB, which makes sure only one outstanding fabric
+ * IOCB will be sent off HBA at any given time.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the FDISC ELS command.
+ *
+ * Return code
+ * 0 - Successfully issued fdisc iocb command
+ * 1 - Failed to issue fdisc iocb command
+ **/
+static 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0255 Issue FDISC: no IOCB\n");
+ return 1;
+ }
+
+ icmd = &elsiocb->iocb;
+ icmd->un.elsreq64.myID = 0;
+ icmd->un.elsreq64.fl = 1;
+
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ /* FDISC needs to be 1 for WQE VPI */
+ elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1;
+ elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ;
+ /* Set the ulpContext to the vpi */
+ elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base;
+ } else {
+ /* 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_vlog(vport, KERN_ERR, LOG_ELS,
+ "0256 Issue FDISC: Cannot send IOCB\n");
+ return 1;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
+ vport->port_state = LPFC_FDISC;
+ return 0;
+}
+
+/**
+ * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the completion callback function to the issuing of a LOGO
+ * ELS command off a vport. It frees the command IOCB and then decrement the
+ * reference count held on ndlp for this completion function, indicating that
+ * the reference to the ndlp is no long needed. Note that the
+ * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
+ * callback function and an additional explicit ndlp reference decrementation
+ * will trigger the actual release of the ndlp.
+ **/
+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;
+ struct lpfc_nodelist *ndlp;
+ ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
+
+ 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;
+
+ /* Trigger the release of the ndlp after logo */
+ lpfc_nlp_put(ndlp);
+}
+
+/**
+ * lpfc_issue_els_npiv_logo - Issue a logo off a vport
+ * @vport: pointer to a virtual N_Port data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine issues a LOGO ELS command to an @ndlp off a @vport.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the LOGO ELS command.
+ *
+ * Return codes
+ * 0 - Successfully issued logo off the @vport
+ * 1 - Failed to issue logo off the @vport
+ **/
+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;
+ 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, LPFC_ELS_RING, 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;
+}
+
+/**
+ * lpfc_fabric_block_timeout - Handler function to the fabric block timer
+ * @ptr: holder for the timer function associated data.
+ *
+ * This routine is invoked by the fabric iocb block timer after
+ * timeout. It posts the fabric iocb block timeout event by setting the
+ * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
+ * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
+ * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
+ * posted event WORKER_FABRIC_BLOCK_TMO.
+ **/
+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)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+/**
+ * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine issues one fabric iocb from the driver internal list to
+ * the HBA. It first checks whether it's ready to issue one fabric iocb to
+ * the HBA (whether there is no outstanding fabric iocb). If so, it shall
+ * remove one pending fabric iocb from the driver internal list and invokes
+ * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
+ **/
+static void
+lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
+{
+ struct lpfc_iocbq *iocb;
+ unsigned long iflags;
+ int ret;
+ 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)
+ /* Increment fabric iocb count to hold the position */
+ 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, LPFC_ELS_RING, 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;
+}
+
+/**
+ * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine unblocks the issuing fabric iocb command. The function
+ * will clear the fabric iocb block bit and then invoke the routine
+ * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
+ * from the driver internal fabric iocb list.
+ **/
+void
+lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
+{
+ clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
+
+ lpfc_resume_fabric_iocbs(phba);
+ return;
+}
+
+/**
+ * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine blocks the issuing fabric iocb for a specified amount of
+ * time (currently 100 ms). This is done by set the fabric iocb block bit
+ * and set up a timeout timer for 100ms. When the block bit is set, no more
+ * fabric iocb will be issued out of the HBA.
+ **/
+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;
+}
+
+/**
+ * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
+ * @phba: pointer to lpfc hba data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @rspiocb: pointer to lpfc response iocb data structure.
+ *
+ * This routine is the callback function that is put to the fabric iocb's
+ * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
+ * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
+ * function first restores and invokes the original iocb's callback function
+ * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
+ * fabric bound iocb from the driver internal fabric iocb list onto the wire.
+ **/
+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);
+ }
+}
+
+/**
+ * lpfc_issue_fabric_iocb - Issue a fabric iocb command
+ * @phba: pointer to lpfc hba data structure.
+ * @iocb: pointer to lpfc command iocb data structure.
+ *
+ * This routine is used as the top-level API for issuing a fabric iocb command
+ * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
+ * function makes sure that only one fabric bound iocb will be outstanding at
+ * any given time. As such, this function will first check to see whether there
+ * is already an outstanding fabric iocb on the wire. If so, it will put the
+ * newly issued iocb onto the driver internal fabric iocb list, waiting to be
+ * issued later. Otherwise, it will issue the iocb on the wire and update the
+ * fabric iocb count it indicate that there is one fabric iocb on the wire.
+ *
+ * Note, this implementation has a potential sending out fabric IOCBs out of
+ * order. The problem is caused by the construction of the "ready" boolen does
+ * not include the condition that the internal fabric IOCB list is empty. As
+ * such, it is possible a fabric IOCB issued by this routine might be "jump"
+ * ahead of the fabric IOCBs in the internal list.
+ *
+ * Return code
+ * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
+ * IOCB_ERROR - failed to issue fabric iocb
+ **/
+static int
+lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
+{
+ unsigned long iflags;
+ 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);
+
+ if (ready)
+ /* Increment fabric iocb count to hold the position */
+ atomic_inc(&phba->fabric_iocb_count);
+ 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);
+
+ ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, 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;
+}
+
+/**
+ * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine aborts all the IOCBs associated with a @vport from the
+ * driver internal fabric IOCB list. The list contains fabric IOCBs to be
+ * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
+ * list, removes each IOCB associated with the @vport off the list, set the
+ * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
+ * associated with the IOCB.
+ **/
+static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
+{
+ LIST_HEAD(completions);
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_iocbq *tmp_iocb, *piocb;
+
+ 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);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+}
+
+/**
+ * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine aborts all the IOCBs associated with an @ndlp from the
+ * driver internal fabric IOCB list. The list contains fabric IOCBs to be
+ * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
+ * list, removes each IOCB associated with the @ndlp off the list, set the
+ * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
+ * associated with the IOCB.
+ **/
+void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
+{
+ LIST_HEAD(completions);
+ struct lpfc_hba *phba = ndlp->phba;
+ struct lpfc_iocbq *tmp_iocb, *piocb;
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
+
+ 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);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+}
+
+/**
+ * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine aborts all the IOCBs currently on the driver internal
+ * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
+ * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
+ * list, removes IOCBs off the list, set the status feild to
+ * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
+ * the IOCB.
+ **/
+void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
+{
+ LIST_HEAD(completions);
+
+ spin_lock_irq(&phba->hbalock);
+ list_splice_init(&phba->fabric_iocb_list, &completions);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+}
+
+/**
+ * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
+ * @phba: pointer to lpfc hba data structure.
+ * @axri: pointer to the els xri abort wcqe structure.
+ *
+ * This routine is invoked by the worker thread to process a SLI4 slow-path
+ * ELS aborted xri.
+ **/
+void
+lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
+ struct sli4_wcqe_xri_aborted *axri)
+{
+ uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
+ struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
+ unsigned long iflag = 0;
+
+ spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, iflag);
+ list_for_each_entry_safe(sglq_entry, sglq_next,
+ &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
+ if (sglq_entry->sli4_xritag == xri) {
+ list_del(&sglq_entry->list);
+ spin_unlock_irqrestore(
+ &phba->sli4_hba.abts_sgl_list_lock,
+ iflag);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+
+ list_add_tail(&sglq_entry->list,
+ &phba->sli4_hba.lpfc_sgl_list);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return;
+ }
+ }
+ spin_unlock_irqrestore(&phba->sli4_hba.abts_sgl_list_lock, iflag);
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff