diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 100 |
1 files changed, 95 insertions, 5 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index d20ae6b3b3cf..b90820a699fd 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -21,6 +21,7 @@ #include <linux/blkdev.h> #include <linux/pci.h> +#include <linux/slab.h> #include <linux/interrupt.h> #include <scsi/scsi.h> @@ -492,6 +493,9 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + struct lpfc_hba *phba = vport->phba; + struct lpfc_vport **vports; + int i, active_vlink_present = 0 ; /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary @@ -504,15 +508,44 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); else lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); - if ((ndlp->nlp_DID == Fabric_DID) && - vport->port_type == LPFC_NPIV_PORT) { + if (ndlp->nlp_DID == Fabric_DID) { + if (vport->port_state <= LPFC_FDISC) + goto out; lpfc_linkdown_port(vport); - mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); spin_lock_irq(shost->host_lock); - ndlp->nlp_flag |= NLP_DELAY_TMO; + vport->fc_flag |= FC_VPORT_LOGO_RCVD; spin_unlock_irq(shost->host_lock); + vports = lpfc_create_vport_work_array(phba); + if (vports) { + for (i = 0; i <= phba->max_vports && vports[i] != NULL; + i++) { + if ((!(vports[i]->fc_flag & + FC_VPORT_LOGO_RCVD)) && + (vports[i]->port_state > LPFC_FDISC)) { + active_vlink_present = 1; + break; + } + } + lpfc_destroy_vport_work_array(phba, vports); + } - ndlp->nlp_last_elscmd = ELS_CMD_FDISC; + if (active_vlink_present) { + /* + * If there are other active VLinks present, + * re-instantiate the Vlink using FDISC. + */ + mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag |= NLP_DELAY_TMO; + spin_unlock_irq(shost->host_lock); + ndlp->nlp_last_elscmd = ELS_CMD_FDISC; + vport->port_state = LPFC_FDISC; + } else { + spin_lock_irq(shost->host_lock); + phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; + spin_unlock_irq(shost->host_lock); + lpfc_retry_pport_discovery(phba); + } } else if ((!(ndlp->nlp_type & NLP_FABRIC) && ((ndlp->nlp_type & NLP_FCP_TARGET) || !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || @@ -525,6 +558,7 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; } +out: ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); @@ -603,11 +637,55 @@ lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) lpfc_unreg_rpi(vport, ndlp); return 0; } +/** + * lpfc_release_rpi - Release a RPI by issueing unreg_login mailbox cmd. + * @phba : Pointer to lpfc_hba structure. + * @vport: Pointer to lpfc_vport structure. + * @rpi : rpi to be release. + * + * This function will send a unreg_login mailbox command to the firmware + * to release a rpi. + **/ +void +lpfc_release_rpi(struct lpfc_hba *phba, + struct lpfc_vport *vport, + uint16_t rpi) +{ + LPFC_MBOXQ_t *pmb; + int rc; + + pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!pmb) + lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, + "2796 mailbox memory allocation failed \n"); + else { + lpfc_unreg_login(phba, vport->vpi, rpi, pmb); + pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) + mempool_free(pmb, phba->mbox_mem_pool); + } +} static uint32_t lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { + struct lpfc_hba *phba; + LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; + MAILBOX_t *mb; + uint16_t rpi; + + phba = vport->phba; + /* Release the RPI if reglogin completing */ + if (!(phba->pport->load_flag & FC_UNLOADING) && + (evt == NLP_EVT_CMPL_REG_LOGIN) && + (!pmb->u.mb.mbxStatus)) { + mb = &pmb->u.mb; + rpi = pmb->u.mb.un.varWords[0]; + lpfc_release_rpi(phba, vport, rpi); + } lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0271 Illegal State Transition: node x%x " "event x%x, state x%x Data: x%x x%x\n", @@ -943,6 +1021,18 @@ static uint32_t lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { + struct lpfc_hba *phba; + LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; + MAILBOX_t *mb = &pmb->u.mb; + uint16_t rpi; + + phba = vport->phba; + /* Release the RPI */ + if (!(phba->pport->load_flag & FC_UNLOADING) && + !mb->mbxStatus) { + rpi = pmb->u.mb.un.varWords[0]; + lpfc_release_rpi(phba, vport, rpi); + } return ndlp->nlp_state; } |