From 0ff10d46cf0a373c9c855a23cc9383ba4030d8d2 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Jan 2008 01:52:36 -0500 Subject: [SCSI] lpfc 8.2.4 : Miscellaneous Discovery/ELS Fixes Miscellaneous Discovery/ELS Fixes: - Delay free's of ELS requests if adapter reject conditions - Fix concurrent PLOGI vs ADISC state handling - Add retry mechanism for GFF_ID - Correct some illegal state transitions around RSCN timeouts - Fix missing return in FAN handling Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_els.c | 56 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 53 insertions(+), 3 deletions(-) (limited to 'drivers/scsi/lpfc/lpfc_els.c') diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index bf332cba2fc0..f5e002435972 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -783,6 +783,8 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, { struct lpfc_vport *vport = ndlp->vport; struct lpfc_nodelist *new_ndlp; + struct lpfc_rport_data *rdata; + struct fc_rport *rport; struct serv_parm *sp; uint8_t name[sizeof(struct lpfc_name)]; uint32_t rc; @@ -819,6 +821,11 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, lpfc_unreg_rpi(vport, new_ndlp); new_ndlp->nlp_DID = ndlp->nlp_DID; new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; + + if (ndlp->nlp_flag & NLP_NPR_2B_DISC) + new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; + ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; + lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); /* Move this back to NPR state */ @@ -826,6 +833,20 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, /* 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; + } + lpfc_drop_node(vport, ndlp); } else { @@ -1149,7 +1170,7 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, return 0; } -static void +void lpfc_more_adisc(struct lpfc_vport *vport) { int sentadisc; @@ -2100,8 +2121,35 @@ lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) } /* context2 = cmd, context2->next = rsp, context3 = bpl */ if (elsiocb->context2) { - buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; - lpfc_els_free_data(phba, buf_ptr1); + 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); + } } if (elsiocb->context3) { @@ -3027,6 +3075,8 @@ lpfc_els_handle_rscn(struct lpfc_vport *vport) /* To process RSCN, first compare RSCN data with NameServer */ vport->fc_ns_retry = 0; + vport->num_disc_nodes = 0; + ndlp = lpfc_findnode_did(vport, NameServer_DID); if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { /* Good ndlp, issue CT Request to NameServer */ -- cgit v1.2.2