diff options
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_crtn.h | 4 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_disc.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_els.c | 231 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hbadisc.c | 96 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 66 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 82 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_vport.c | 24 |
7 files changed, 300 insertions, 204 deletions
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 59164c6aa28..338b5dd10a9 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -45,6 +45,7 @@ void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t); struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t); void lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove); int lpfc_linkdown(struct lpfc_hba *); +void lpfc_port_link_failure(struct lpfc_vport *); void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_mbx_cmpl_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *); @@ -74,6 +75,7 @@ void lpfc_disc_list_loopmap(struct lpfc_vport *); void lpfc_disc_start(struct lpfc_vport *); void lpfc_disc_flush_list(struct lpfc_vport *); void lpfc_cleanup_discovery_resources(struct lpfc_vport *); +void lpfc_cleanup(struct lpfc_vport *); void lpfc_disc_timeout(unsigned long); struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t); @@ -91,6 +93,8 @@ void lpfc_do_scr_ns_plogi(struct lpfc_hba *, struct lpfc_vport *); int lpfc_check_sparm(struct lpfc_vport *, struct lpfc_nodelist *, struct serv_parm *, uint32_t); int lpfc_els_abort(struct lpfc_hba *, struct lpfc_nodelist *); +void lpfc_more_plogi(struct lpfc_vport *); +void lpfc_end_rscn(struct lpfc_vport *); int lpfc_els_chk_latt(struct lpfc_vport *); int lpfc_els_abort_flogi(struct lpfc_hba *); int lpfc_initial_flogi(struct lpfc_vport *); diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h index c9422a8423c..99bc1a1ecac 100644 --- a/drivers/scsi/lpfc/lpfc_disc.h +++ b/drivers/scsi/lpfc/lpfc_disc.h @@ -103,7 +103,6 @@ struct lpfc_nodelist { #define NLP_RM_DFLT_RPI 0x4000000 /* need to remove leftover dflt RPI */ #define NLP_NODEV_REMOVE 0x8000000 /* Defer removal till discovery ends */ #define NLP_TARGET_REMOVE 0x10000000 /* Target remove in process */ -#define NLP_DELAYED_RM 0x20000000 /* Defer UNUSED List removal */ /* There are 4 different double linked lists nodelist entries can reside on. * The Port Login (PLOGI) list and Address Discovery (ADISC) list are used diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 813eeca7ce1..0a5006ea990 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -575,8 +575,13 @@ flogifail: /* Start discovery */ 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); } @@ -711,13 +716,8 @@ 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); } @@ -746,7 +746,8 @@ lpfc_initial_fdisc(struct lpfc_vport *vport) } return 1; } -static void + +void lpfc_more_plogi(struct lpfc_vport *vport) { int sentplogi; @@ -813,8 +814,12 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, 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) + 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. + */ lpfc_drop_node(vport, ndlp); + } else { lpfc_unreg_rpi(vport, ndlp); ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */ @@ -823,6 +828,27 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, return new_ndlp; } +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); + } + } +} + static void lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) @@ -893,13 +919,6 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, goto out; } /* PLOGI failed */ - if (ndlp->nlp_DID == NameServer_DID) { - lpfc_vport_set_state(vport, FC_VPORT_FAILED); - lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, - "0250 Nameserver login error: " - "0x%x / 0x%x\n", - irsp->ulpStatus, irsp->un.ulpWord[4]); - } /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if (lpfc_error_lost_link(irsp)) { rc = NLP_STE_FREED_NODE; @@ -927,20 +946,7 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, spin_unlock_irq(shost->host_lock); lpfc_can_disctmo(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 == 0) && - (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { - spin_lock_irq(shost->host_lock); - vport->fc_flag &= ~FC_RSCN_MODE; - spin_unlock_irq(shost->host_lock); - } else { - lpfc_els_handle_rscn(vport); - } - } + lpfc_end_rscn(vport); } } @@ -1160,8 +1166,6 @@ lpfc_more_adisc(struct lpfc_vport *vport) static void lpfc_rscn_disc(struct lpfc_vport *vport) { - struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - lpfc_can_disctmo(vport); /* RSCN discovery */ @@ -1170,19 +1174,7 @@ lpfc_rscn_disc(struct lpfc_vport *vport) if (lpfc_els_disc_plogi(vport)) return; - 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 == 0) && - (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { - spin_lock_irq(shost->host_lock); - vport->fc_flag &= ~FC_RSCN_MODE; - spin_unlock_irq(shost->host_lock); - } else { - lpfc_els_handle_rscn(vport); - } - } + lpfc_end_rscn(vport); } static void @@ -1632,27 +1624,6 @@ lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) return 0; } -static 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); - } - } -} - void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) { @@ -2069,6 +2040,32 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, } 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; +} + +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; +} + +int lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) { struct lpfc_dmabuf *buf_ptr, *buf_ptr1; @@ -2080,22 +2077,12 @@ 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; - /* 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); + lpfc_els_free_data(phba, 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); } lpfc_sli_release_iocbq(phba, elsiocb); return 0; @@ -2119,15 +2106,15 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, "Data: x%x x%x x%x\n", 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_drop_node(vport, ndlp); - break; - case NLP_STE_NPR_NODE: /* NPort Recovery mode */ - lpfc_unreg_rpi(vport, ndlp); - break; - default: - break; + + 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); + } } lpfc_els_free_iocb(phba, cmdiocb); return; @@ -2160,15 +2147,27 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 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; + IOCB_t *irsp; + uint8_t *pcmd; LPFC_MBOXQ_t *mbox = NULL; struct lpfc_dmabuf *mp = NULL; + uint32_t ls_rjt = 0; irsp = &rspiocb->iocb; if (cmdiocb->context_un.mbox) mbox = cmdiocb->context_un.mbox; + /* First determine if this is a LS_RJT cmpl */ + pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); + if (*((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 (!ndlp || lpfc_els_chk_latt(vport)) { if (mbox) { @@ -2247,7 +2246,16 @@ out: 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) + lpfc_nlp_not_used(ndlp); } + lpfc_els_free_iocb(phba, cmdiocb); return; } @@ -2418,18 +2426,6 @@ lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); - /* 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, 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) && - !(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); return 1; @@ -2715,7 +2711,10 @@ lpfc_els_disc_plogi(struct lpfc_vport *vport) } } } - if (sentplogi == 0) { + 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); @@ -3533,6 +3532,7 @@ lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, * other NLP_FABRIC logins */ lpfc_drop_node(vport, ndlp); + } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { /* Fail outstanding I/O now since this * device is marked for PLOGI @@ -3781,6 +3781,7 @@ 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; @@ -3826,6 +3827,14 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, ndlp->nlp_type |= NLP_FABRIC; } } + else { + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { + /* This is simular to the new node path */ + lpfc_nlp_get(ndlp); + lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); + newnode = 1; + } + } phba->fc_stat.elsRcvFrame++; if (elsiocb->context1) @@ -3853,6 +3862,12 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, rjt_err = LSRJT_UNABLE_TPC; break; } + + 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); @@ -3864,7 +3879,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; case ELS_CMD_LOGO: @@ -3894,7 +3909,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; case ELS_CMD_ADISC: @@ -3966,7 +3981,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; case ELS_CMD_RPS: @@ -3976,7 +3991,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; case ELS_CMD_RPL: @@ -3986,7 +4001,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; case ELS_CMD_RNID: @@ -3996,7 +4011,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; default: @@ -4011,7 +4026,7 @@ 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 && (!(ndlp->nlp_flag & NLP_DELAYED_RM))) + if (newnode) lpfc_nlp_put(ndlp); break; } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index e181a98caf1..f64ce88e8a0 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -157,6 +157,8 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) struct lpfc_vport *vport; struct lpfc_hba *phba; uint8_t *name; + int put_node; + int put_rport; int warn_on = 0; rport = ndlp->rport; @@ -178,9 +180,6 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) return; if (ndlp->nlp_type & NLP_FABRIC) { - int put_node; - int put_rport; - /* We will clean up these Nodes in linkup */ put_node = rdata->pnode != NULL; put_rport = ndlp->rport != NULL; @@ -222,23 +221,20 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) ndlp->nlp_state, ndlp->nlp_rpi); } + put_node = rdata->pnode != NULL; + put_rport = ndlp->rport != NULL; + rdata->pnode = NULL; + ndlp->rport = NULL; + if (put_node) + lpfc_nlp_put(ndlp); + if (put_rport) + put_device(&rport->dev); + if (!(vport->load_flag & FC_UNLOADING) && !(ndlp->nlp_flag & NLP_DELAY_TMO) && !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && - (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)) + (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)) { lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); - else { - int put_node; - int put_rport; - - put_node = rdata->pnode != NULL; - put_rport = ndlp->rport != NULL; - rdata->pnode = NULL; - ndlp->rport = NULL; - if (put_node) - lpfc_nlp_put(ndlp); - if (put_rport) - put_device(&rport->dev); } } @@ -546,11 +542,9 @@ lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) } } -static void +void lpfc_port_link_failure(struct lpfc_vport *vport) { - struct lpfc_nodelist *ndlp, *next_ndlp; - /* Cleanup any outstanding RSCN activity */ lpfc_els_flush_rscn(vport); @@ -559,11 +553,6 @@ lpfc_port_link_failure(struct lpfc_vport *vport) lpfc_cleanup_rpis(vport, 0); - /* free any ndlp's on unused list */ - list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) - if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) - lpfc_drop_node(vport, ndlp); - /* Turn off discovery timer if its running */ lpfc_can_disctmo(vport); } @@ -670,7 +659,6 @@ static void lpfc_linkup_port(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - struct lpfc_nodelist *ndlp, *next_ndlp; struct lpfc_hba *phba = vport->phba; if ((vport->load_flag & FC_UNLOADING) != 0) @@ -697,11 +685,6 @@ lpfc_linkup_port(struct lpfc_vport *vport) if (vport->fc_flag & FC_LBIT) lpfc_linkup_cleanup_nodes(vport); - /* free any ndlp's in unused state */ - list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, - nlp_listp) - if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) - lpfc_drop_node(vport, ndlp); } static int @@ -1345,7 +1328,9 @@ out: lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); - lpfc_drop_node(vport, ndlp); + + /* If no other thread is using the ndlp, free it */ + lpfc_nlp_not_used(ndlp); if (phba->fc_topology == TOPOLOGY_LOOP) { /* @@ -1605,16 +1590,6 @@ lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_type &= ~NLP_FC_NODE; } - if ((old_state == NLP_STE_UNUSED_NODE) && - (state != NLP_STE_UNUSED_NODE) && - (ndlp->nlp_flag & NLP_DELAYED_RM)) { - /* We are using the ndlp after all, so reverse - * the delayed removal of it. - */ - ndlp->nlp_flag &= ~NLP_DELAYED_RM; - lpfc_nlp_get(ndlp); - } - if (list_empty(&ndlp->nlp_listp)) { spin_lock_irq(shost->host_lock); list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); @@ -1646,9 +1621,16 @@ lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) void lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { + /* + * Use of lpfc_drop_node and UNUSED list. lpfc_drop_node should + * be used if we wish to issue the "last" lpfc_nlp_put() to remove + * the ndlp from the vport. The ndlp resides on the UNUSED list + * until ALL other outstanding threads have completed. Thus, if a + * ndlp is on the UNUSED list already, we should never do another + * lpfc_drop_node() on it. + */ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); - if (!(ndlp->nlp_flag & NLP_DELAYED_RM)) - lpfc_nlp_put(ndlp); + lpfc_nlp_put(ndlp); return; } @@ -2116,6 +2098,12 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) } if (vport->fc_flag & FC_RSCN_MODE) { if (lpfc_rscn_payload_check(vport, did)) { + /* If we've already recieved a PLOGI from this NPort + * we don't need to try to discover it again. + */ + if (ndlp->nlp_flag & NLP_RCV_PLOGI) + return NULL; + spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); @@ -2128,8 +2116,13 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) } else ndlp = NULL; } else { + /* If we've already recieved a PLOGI from this NPort, + * or we are already in the process of discovery on it, + * we don't need to try to discover it again. + */ if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || - ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) + ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || + ndlp->nlp_flag & NLP_RCV_PLOGI) return NULL; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); @@ -2497,6 +2490,7 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) if (ndlp->nlp_type & NLP_FABRIC) { /* Clean up the ndlp on Fabric connections */ lpfc_drop_node(vport, ndlp); + } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { /* Fail outstanding IO now since device * is marked for PLOGI. @@ -2515,7 +2509,7 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) /* Initial FLOGI timeout */ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0222 Initial %s timeout\n", - vport->vpi ? "FLOGI" : "FDISC"); + vport->vpi ? "FDISC" : "FLOGI"); /* Assume no Fabric and go on with discovery. * Check for outstanding ELS FLOGI to abort. @@ -2537,10 +2531,10 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) /* Next look for NameServer ndlp */ ndlp = lpfc_findnode_did(vport, NameServer_DID); if (ndlp) - lpfc_nlp_put(ndlp); - /* Start discovery */ - lpfc_disc_start(vport); - break; + lpfc_els_abort(phba, ndlp); + + /* ReStart discovery */ + goto restart_disc; case LPFC_NS_QRY: /* Check for wait for NameServer Rsp timeout */ @@ -2559,6 +2553,7 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) } vport->fc_ns_retry = 0; +restart_disc: /* * Discovery is over. * set port_state to PORT_READY if SLI2. @@ -2731,8 +2726,7 @@ __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) struct lpfc_nodelist *ndlp; list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { - if (ndlp->nlp_state != NLP_STE_UNUSED_NODE && - filter(ndlp, param)) + if (filter(ndlp, param)) return ndlp; } return NULL; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 729694d9759..ceb185fa321 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1334,15 +1334,35 @@ lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) kfree(HashWorking); } -static void +void lpfc_cleanup(struct lpfc_vport *vport) { + struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *ndlp, *next_ndlp; - /* clean up phba - lpfc specific */ - lpfc_can_disctmo(vport); - list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) - lpfc_nlp_put(ndlp); + if (phba->link_state > LPFC_LINK_DOWN) + lpfc_port_link_failure(vport); + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (ndlp->nlp_type & NLP_FABRIC) + lpfc_disc_state_machine(vport, ndlp, NULL, + NLP_EVT_DEVICE_RECOVERY); + lpfc_disc_state_machine(vport, ndlp, NULL, + NLP_EVT_DEVICE_RM); + } + + /* At this point, ALL ndlp's should be gone */ + while (!list_empty(&vport->fc_nodes)) { + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, + nlp_listp) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, + "0233 Nodelist x%x not free: %d\n", + ndlp->nlp_DID, + atomic_read(&ndlp->kref.refcount)); + lpfc_drop_node(vport, ndlp); + } + } return; } @@ -1463,6 +1483,8 @@ lpfc_offline_prep(struct lpfc_hba * phba) { struct lpfc_vport *vport = phba->pport; struct lpfc_nodelist *ndlp, *next_ndlp; + struct lpfc_vport **vports; + int i; if (vport->fc_flag & FC_OFFLINE_MODE) return; @@ -1471,10 +1493,32 @@ lpfc_offline_prep(struct lpfc_hba * phba) lpfc_linkdown(phba); - /* Issue an unreg_login to all nodes */ - list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) - if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) - lpfc_unreg_rpi(vport, ndlp); + /* Issue an unreg_login to all nodes on all vports */ + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) { + for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { + struct Scsi_Host *shost; + + shost = lpfc_shost_from_vport(vports[i]); + list_for_each_entry_safe(ndlp, next_ndlp, + &vports[i]->fc_nodes, + nlp_listp) { + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) + continue; + if (ndlp->nlp_type & NLP_FABRIC) { + lpfc_disc_state_machine(vports[i], ndlp, + NULL, NLP_EVT_DEVICE_RECOVERY); + lpfc_disc_state_machine(vports[i], ndlp, + NULL, NLP_EVT_DEVICE_RM); + } + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag &= ~NLP_NPR_ADISC; + spin_unlock_irq(shost->host_lock); + lpfc_unreg_rpi(vports[i], ndlp); + } + } + } + lpfc_destroy_vport_work_array(vports); lpfc_sli_flush_mbox_queue(phba); } @@ -1508,7 +1552,6 @@ lpfc_offline(struct lpfc_hba *phba) if (vports != NULL) for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { shost = lpfc_shost_from_vport(vports[i]); - lpfc_cleanup(vports[i]); spin_lock_irq(shost->host_lock); vports[i]->work_port_events = 0; vports[i]->fc_flag |= FC_OFFLINE_MODE; @@ -2061,6 +2104,8 @@ lpfc_pci_remove_one(struct pci_dev *pdev) fc_remove_host(shost); scsi_remove_host(shost); + lpfc_cleanup(vport); + /* * Bring down the SLI Layer. This step disable all interrupts, * clears the rings, discards all mailbox commands, and resets @@ -2075,7 +2120,6 @@ lpfc_pci_remove_one(struct pci_dev *pdev) spin_unlock_irq(&phba->hbalock); lpfc_debugfs_terminate(vport); - lpfc_cleanup(vport); kthread_stop(phba->worker_thread); diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 1a16ee9b2e8..bba1fb6103f 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -406,6 +406,41 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp, mbox); return 1; } + + /* If the remote NPort logs into us, before we can initiate + * discovery to them, cleanup the NPort from discovery accordingly. + */ + if (ndlp->nlp_state == NLP_STE_NPR_NODE) { + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag &= ~NLP_DELAY_TMO; + spin_unlock_irq(shost->host_lock); + del_timer_sync(&ndlp->nlp_delayfunc); + ndlp->nlp_last_elscmd = 0; + + if (!list_empty(&ndlp->els_retry_evt.evt_listp)) + list_del_init(&ndlp->els_retry_evt.evt_listp); + + if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; + spin_unlock_irq(shost->host_lock); + if (vport->num_disc_nodes) { + /* Check to see 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); + } + } + } + } + lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); return 1; @@ -500,12 +535,9 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; - ndlp->nlp_prev_state = ndlp->nlp_state; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); - } else { - ndlp->nlp_prev_state = ndlp->nlp_state; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); } + ndlp->nlp_prev_state = ndlp->nlp_state; + lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; @@ -593,6 +625,25 @@ lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, return ndlp->nlp_state; } +static uint32_t +lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, + void *arg, uint32_t evt) +{ + /* This transition is only legal if we previously + * rcv'ed a PLOGI. Since we don't want 2 discovery threads + * working on the same NPortID, do nothing for this thread + * to stop it. + */ + if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, + "0253 Illegal State Transition: node x%x " + "event x%x, state x%x Data: x%x x%x\n", + ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, + ndlp->nlp_flag); + } + return ndlp->nlp_state; +} + /* Start of Discovery State Machine routines */ static uint32_t @@ -604,11 +655,8 @@ lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { - ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); return ndlp->nlp_state; } - lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } @@ -617,7 +665,6 @@ lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { lpfc_issue_els_logo(vport, ndlp, 0); - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); return ndlp->nlp_state; } @@ -632,7 +679,6 @@ lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); return ndlp->nlp_state; } @@ -641,7 +687,6 @@ static uint32_t lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { - lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } @@ -649,7 +694,6 @@ static uint32_t lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { - lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } @@ -864,7 +908,7 @@ out: /* Free this node since the driver cannot login or has the wrong sparm */ - lpfc_drop_node(vport, ndlp); + lpfc_nlp_not_used(ndlp); return NLP_STE_FREED_NODE; } @@ -1195,8 +1239,8 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, * retry discovery. */ if (mb->mbxStatus == MBXERR_RPI_FULL) { - ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); + ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; + lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } @@ -1376,7 +1420,7 @@ out: lpfc_issue_els_logo(vport, ndlp, 0); ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; - lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); + lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } @@ -1751,7 +1795,7 @@ lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, irsp = &rspiocb->iocb; if (irsp->ulpStatus) { - lpfc_drop_node(vport, ndlp); + lpfc_nlp_not_used(ndlp); return NLP_STE_FREED_NODE; } return ndlp->nlp_state; @@ -1966,7 +2010,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ - lpfc_disc_illegal, /* CMPL_PLOGI */ + lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ @@ -1980,7 +2024,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ - lpfc_disc_illegal, /* CMPL_PLOGI */ + lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index fd07d9d7f50..378c01200b0 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -445,7 +445,6 @@ int lpfc_vport_delete(struct fc_vport *fc_vport) { struct lpfc_nodelist *ndlp = NULL; - struct lpfc_nodelist *next_ndlp; struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; struct lpfc_hba *phba = vport->phba; @@ -531,23 +530,20 @@ lpfc_vport_delete(struct fc_vport *fc_vport) } skip_logo: + lpfc_cleanup(vport); lpfc_sli_host_down(vport); - list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { - lpfc_disc_state_machine(vport, ndlp, NULL, - NLP_EVT_DEVICE_RECOVERY); - lpfc_disc_state_machine(vport, ndlp, NULL, - NLP_EVT_DEVICE_RM); - } - lpfc_stop_vport_timers(vport); lpfc_unreg_all_rpis(vport); - lpfc_unreg_default_rpis(vport); - /* - * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the - * scsi_host_put() to release the vport. - */ - lpfc_mbx_unreg_vpi(vport); + + if (!(phba->pport->load_flag & FC_UNLOADING)) { + lpfc_unreg_default_rpis(vport); + /* + * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) + * does the scsi_host_put() to release the vport. + */ + lpfc_mbx_unreg_vpi(vport); + } lpfc_free_vpi(phba, vport->vpi); vport->work_port_events = 0; |