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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_els.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c176
1 files changed, 165 insertions, 11 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index c62d567cc84..735028fedda 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2009 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -89,7 +89,8 @@ lpfc_els_chk_latt(struct lpfc_vport *vport)
return 0;
/* Read the HBA Host Attention Register */
- ha_copy = readl(phba->HAregaddr);
+ if (lpfc_readl(phba->HAregaddr, &ha_copy))
+ return 1;
if (!(ha_copy & HA_LATT))
return 0;
@@ -485,6 +486,59 @@ fail:
}
/**
+ * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @sp: pointer to service parameter data structure.
+ *
+ * This routine is called from FLOGI/FDISC completion handler functions.
+ * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter else return
+ * 0. This function also set flag in the vport data structure to delay
+ * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
+ * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter.
+ *
+ * Return code
+ * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
+ * 1 - FCID or Fabric Nodename or Fabric portname is changed.
+ *
+ **/
+static uint8_t
+lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
+ struct serv_parm *sp)
+{
+ uint8_t fabric_param_changed = 0;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if ((vport->fc_prevDID != vport->fc_myDID) ||
+ memcmp(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name)) ||
+ memcmp(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name)))
+ fabric_param_changed = 1;
+
+ /*
+ * Word 1 Bit 31 in common service parameter is overloaded.
+ * Word 1 Bit 31 in FLOGI request is multiple NPort request
+ * Word 1 Bit 31 in FLOGI response is clean address bit
+ *
+ * If fabric parameter is changed and clean address bit is
+ * cleared delay nport discovery if
+ * - vport->fc_prevDID != 0 (not initial discovery) OR
+ * - lpfc_delay_discovery module parameter is set.
+ */
+ if (fabric_param_changed && !sp->cmn.clean_address_bit &&
+ (vport->fc_prevDID || lpfc_delay_discovery)) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+ }
+
+ return fabric_param_changed;
+}
+
+
+/**
* 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.
@@ -512,6 +566,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
+ uint8_t fabric_param_changed;
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_FABRIC;
@@ -544,6 +599,12 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
sp->cmn.bbRcvSizeLsb;
+
+ fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+ memcpy(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name));
+ memcpy(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name));
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
@@ -565,7 +626,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
}
}
- if ((vport->fc_prevDID != vport->fc_myDID) &&
+ if (fabric_param_changed &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
@@ -2203,6 +2264,7 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_sli *psli;
+ struct lpfcMboxq *mbox;
psli = &phba->sli;
/* we pass cmdiocb to state machine which needs rspiocb as well */
@@ -2260,6 +2322,21 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
NLP_EVT_CMPL_LOGO);
out:
lpfc_els_free_iocb(phba, cmdiocb);
+ /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
+ if ((vport->fc_flag & FC_PT2PT) &&
+ !(vport->fc_flag & FC_PT2PT_PLOGI)) {
+ phba->pport->fc_myDID = 0;
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_config_link(phba, mbox);
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
+ MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
+ }
return;
}
@@ -2745,7 +2822,8 @@ lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
}
break;
case ELS_CMD_FDISC:
- lpfc_issue_els_fdisc(vport, ndlp, retry);
+ if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
+ lpfc_issue_els_fdisc(vport, ndlp, retry);
break;
}
return;
@@ -2815,9 +2893,17 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
switch (irsp->ulpStatus) {
case IOSTAT_FCP_RSP_ERROR:
+ break;
case IOSTAT_REMOTE_STOP:
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ /* This IO was aborted by the target, we don't
+ * know the rxid and because we did not send the
+ * ABTS we cannot generate and RRQ.
+ */
+ lpfc_set_rrq_active(phba, ndlp,
+ cmdiocb->sli4_xritag, 0, 0);
+ }
break;
-
case IOSTAT_LOCAL_REJECT:
switch ((irsp->un.ulpWord[4] & 0xff)) {
case IOERR_LOOP_OPEN_FAILURE:
@@ -4013,28 +4099,34 @@ lpfc_els_clear_rrq(struct lpfc_vport *vport,
uint8_t *pcmd;
struct RRQ *rrq;
uint16_t rxid;
+ uint16_t xri;
struct lpfc_node_rrq *prrq;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
pcmd += sizeof(uint32_t);
rrq = (struct RRQ *)pcmd;
- rxid = bf_get(rrq_oxid, rrq);
+ rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
+ rxid = be16_to_cpu(bf_get(rrq_rxid, rrq));
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
" x%x x%x\n",
- bf_get(rrq_did, rrq),
- bf_get(rrq_oxid, rrq),
+ be32_to_cpu(bf_get(rrq_did, rrq)),
+ be16_to_cpu(bf_get(rrq_oxid, rrq)),
rxid,
iocb->iotag, iocb->iocb.ulpContext);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
- prrq = lpfc_get_active_rrq(vport, rxid, ndlp->nlp_DID);
+ if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
+ xri = be16_to_cpu(bf_get(rrq_oxid, rrq));
+ else
+ xri = rxid;
+ prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
if (prrq)
- lpfc_clr_rrq_active(phba, rxid, prrq);
+ lpfc_clr_rrq_active(phba, xri, prrq);
return;
}
@@ -6166,6 +6258,11 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
if (vport->load_flag & FC_UNLOADING)
goto dropit;
+ /* If NPort discovery is delayed drop incoming ELS */
+ if ((vport->fc_flag & FC_DISC_DELAYED) &&
+ (cmd != ELS_CMD_PLOGI))
+ goto dropit;
+
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
@@ -6218,6 +6315,12 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
lpfc_send_els_event(vport, ndlp, payload);
+
+ /* If Nport discovery is delayed, reject PLOGIs */
+ if (vport->fc_flag & FC_DISC_DELAYED) {
+ rjt_err = LSRJT_UNABLE_TPC;
+ break;
+ }
if (vport->port_state < LPFC_DISC_AUTH) {
if (!(phba->pport->fc_flag & FC_PT2PT) ||
(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -6596,6 +6699,21 @@ void
lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *ndlp_fdmi;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ /*
+ * If lpfc_delay_discovery parameter is set and the clean address
+ * bit is cleared and fc fabric parameters chenged, delay FC NPort
+ * discovery.
+ */
+ spin_lock_irq(shost->host_lock);
+ if (vport->fc_flag & FC_DISC_DELAYED) {
+ spin_unlock_irq(shost->host_lock);
+ mod_timer(&vport->delayed_disc_tmo,
+ jiffies + HZ * phba->fc_ratov);
+ return;
+ }
+ spin_unlock_irq(shost->host_lock);
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ndlp) {
@@ -6938,6 +7056,9 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *next_np;
IOCB_t *irsp = &rspiocb->iocb;
struct lpfc_iocbq *piocb;
+ struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
+ struct serv_parm *sp;
+ uint8_t fabric_param_changed;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0123 FDISC completes. x%x/x%x prevDID: x%x\n",
@@ -6981,7 +7102,14 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
- if ((vport->fc_prevDID != vport->fc_myDID) &&
+ prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
+ sp = prsp->virt + sizeof(uint32_t);
+ fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+ memcpy(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name));
+ memcpy(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name));
+ if (fabric_param_changed &&
!(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
@@ -7582,6 +7710,32 @@ void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
}
/**
+ * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
+ * @vport: pointer to lpfc vport data structure.
+ *
+ * This routine is invoked by the vport cleanup for deletions and the cleanup
+ * for an ndlp on removal.
+ **/
+void
+lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
+ unsigned long iflag = 0;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
+ list_for_each_entry_safe(sglq_entry, sglq_next,
+ &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
+ if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
+ sglq_entry->ndlp = NULL;
+ }
+ spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return;
+}
+
+/**
* 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.
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-25 16:39:44 +0000