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path: root/drivers/scsi/lpfc/lpfc_els.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_els.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c154
1 files changed, 114 insertions, 40 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b73612d4fc5..813eeca7ce1 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -109,9 +109,10 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
/* 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)) {
+ pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (pcmd)
+ pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
+ if (!pcmd || !pcmd->virt) {
kfree(pcmd);
lpfc_sli_release_iocbq(phba, elsiocb);
@@ -126,7 +127,7 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
if (prsp)
prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&prsp->phys);
- if (prsp == 0 || prsp->virt == 0) {
+ if (!prsp || !prsp->virt) {
kfree(prsp);
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
kfree(pcmd);
@@ -143,7 +144,7 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
if (pbuflist)
pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&pbuflist->phys);
- if (pbuflist == 0 || pbuflist->virt == 0) {
+ if (!pbuflist || !pbuflist->virt) {
lpfc_sli_release_iocbq(phba, elsiocb);
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
@@ -234,15 +235,20 @@ lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
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)
+ if (!ndlp) {
+ err = 1;
goto fail;
+ }
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!mbox)
+ if (!mbox) {
+ err = 2;
goto fail;
+ }
vport->port_state = LPFC_FABRIC_CFG_LINK;
lpfc_config_link(phba, mbox);
@@ -250,24 +256,32 @@ lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED)
+ if (rc == MBX_NOT_FINISHED) {
+ err = 3;
goto fail_free_mbox;
+ }
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!mbox)
+ if (!mbox) {
+ err = 4;
goto fail;
+ }
rc = lpfc_reg_login(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
0);
- if (rc)
+ if (rc) {
+ err = 5;
goto fail_free_mbox;
+ }
mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
mbox->vport = vport;
mbox->context2 = lpfc_nlp_get(ndlp);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED)
+ if (rc == MBX_NOT_FINISHED) {
+ err = 6;
goto fail_issue_reg_login;
+ }
return 0;
@@ -282,7 +296,7 @@ fail_free_mbox:
fail:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
- "0249 Cannot issue Register Fabric login\n");
+ "0249 Cannot issue Register Fabric login: Err %d\n", err);
return -ENXIO;
}
@@ -684,6 +698,9 @@ 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(vport, Fabric_DID);
if (!ndlp) {
@@ -694,6 +711,12 @@ lpfc_initial_flogi(struct lpfc_vport *vport)
lpfc_nlp_init(vport, ndlp, Fabric_DID);
} else {
lpfc_dequeue_node(vport, ndlp);
+
+ /* If we go thru this path, Fabric_DID ndlp is in the process
+ * of being removed. We need to bump the reference count by 1
+ * so it stays around all through this link up period.
+ */
+ lpfc_nlp_get(ndlp);
}
if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
lpfc_nlp_put(ndlp);
@@ -932,6 +955,7 @@ 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;
@@ -942,8 +966,11 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
+ ndlp = lpfc_findnode_did(vport, did);
+ /* If ndlp if 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, NULL, did,
+ elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
ELS_CMD_PLOGI);
if (!elsiocb)
return 1;
@@ -1412,6 +1439,13 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_LOGO);
@@ -1758,6 +1792,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
uint32_t *elscmd;
struct ls_rjt stat;
int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
+ int logerr = 0;
uint32_t cmd = 0;
uint32_t did;
@@ -1814,6 +1849,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
break;
case IOERR_NO_RESOURCES:
+ logerr = 1; /* HBA out of resources */
retry = 1;
if (cmdiocb->retry > 100)
delay = 100;
@@ -1842,6 +1878,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
+ logerr = 1; /* Fabric / Remote NPort out of resources */
retry = 1;
break;
@@ -1922,6 +1959,15 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
if (did == FDMI_DID)
retry = 1;
+ if ((cmd == ELS_CMD_FLOGI) &&
+ (phba->fc_topology != TOPOLOGY_LOOP)) {
+ /* FLOGI retry policy */
+ retry = 1;
+ maxretry = 48;
+ if (cmdiocb->retry >= 32)
+ delay = 1000;
+ }
+
if ((++cmdiocb->retry) >= maxretry) {
phba->fc_stat.elsRetryExceeded++;
retry = 0;
@@ -2005,11 +2051,20 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
}
}
/* No retry ELS command <elsCmd> to remote NPORT <did> */
- lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ 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;
}
@@ -2089,6 +2144,12 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
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;
}
@@ -2118,6 +2179,9 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
}
mempool_free(mbox, phba->mbox_mem_pool);
}
+ if (ndlp && (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
+ if (lpfc_nlp_not_used(ndlp))
+ ndlp = NULL;
goto out;
}
@@ -2153,15 +2217,22 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
!= MBX_NOT_FINISHED) {
goto out;
}
- lpfc_nlp_put(ndlp);
- /* NOTE: we should have messages for unsuccessful
- reglogin */
+
+ /* 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;
} else {
/* Do not drop node for lpfc_els_abort'ed ELS cmds */
if (!lpfc_error_lost_link(irsp) &&
ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
- lpfc_drop_node(vport, ndlp);
- ndlp = NULL;
+ if (lpfc_nlp_not_used(ndlp))
+ ndlp = NULL;
}
}
mp = (struct lpfc_dmabuf *) mbox->context1;
@@ -2350,10 +2421,14 @@ lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
/* If the node is in the UNUSED state, and we are sending
* a reject, we are done with it. Release driver reference
* count here. The outstanding els will release its reference on
- * completion and the node can be freed then.
+ * completion, as long as the ndlp stays in the UNUSED list,
+ * and the node can be freed then.
*/
- if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) &&
+ !(ndlp->nlp_flag & NLP_DELAYED_RM)) {
+ ndlp->nlp_flag |= NLP_DELAYED_RM;
lpfc_nlp_put(ndlp);
+ }
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
@@ -3466,8 +3541,6 @@ lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
}
}
- vport->port_state = LPFC_FLOGI;
- lpfc_set_disctmo(vport);
lpfc_initial_flogi(vport);
return 0;
}
@@ -3747,11 +3820,11 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
goto dropit;
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) {
ndlp->nlp_type |= NLP_FABRIC;
}
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
}
phba->fc_stat.elsRcvFrame++;
@@ -3791,8 +3864,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvFLOGI++;
lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
case ELS_CMD_LOGO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3821,8 +3894,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
case ELS_CMD_RSCN:
phba->fc_stat.elsRcvRSCN++;
lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
case ELS_CMD_ADISC:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3893,8 +3966,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvLIRR++;
lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
case ELS_CMD_RPS:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3903,8 +3976,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvRPS++;
lpfc_els_rcv_rps(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
case ELS_CMD_RPL:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3913,8 +3986,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvRPL++;
lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
case ELS_CMD_RNID:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3923,8 +3996,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvRNID++;
lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
- if (newnode)
- lpfc_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
default:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -3938,8 +4011,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
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_drop_node(vport, ndlp);
+ if (newnode && (!(ndlp->nlp_flag & NLP_DELAYED_RM)))
+ lpfc_nlp_put(ndlp);
break;
}
@@ -3955,10 +4028,11 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
return;
dropit:
- lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
+ if (vport && !(vport->load_flag & FC_UNLOADING))
+ lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"(%d):0111 Dropping received ELS cmd "
"Data: x%x x%x x%x\n",
- vport ? vport->vpi : 0xffff, icmd->ulpStatus,
+ vport->vpi, icmd->ulpStatus,
icmd->un.ulpWord[4], icmd->ulpTimeout);
phba->fc_stat.elsRcvDrop++;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 03:13:36 +0000