From 549e55cd2a1b83ea45ac17fb6c309654a3d371a4 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 2 Aug 2007 11:09:51 -0400 Subject: [SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list Cleans up a lot of bad behaviors that have been in this area a while Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_els.c | 61 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 52 insertions(+), 9 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 68fc975d4e5..b8e048a467d 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -2800,7 +2800,6 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_dmabuf *pcmd; - struct lpfc_vport *next_vport; uint32_t *lp, *datap; IOCB_t *icmd; uint32_t payload_len, length, nportid, *cmd; @@ -2850,13 +2849,8 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, nportid = ((be32_to_cpu(nportid)) & Mask_DID); i -= sizeof(uint32_t); rscn_id++; - list_for_each_entry(next_vport, &phba->port_list, - listentry) { - if (nportid == next_vport->fc_myDID) { - hba_id++; - break; - } - } + if (lpfc_find_vport_by_did(phba, nportid)) + hba_id++; } if (rscn_id == hba_id) { /* ALL NPortIDs in RSCN are on HBA */ @@ -3740,6 +3734,50 @@ lpfc_els_flush_cmd(struct lpfc_vport *vport) return; } +void +lpfc_els_flush_all_cmd(struct lpfc_hba *phba) +{ + LIST_HEAD(completions); + struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; + struct lpfc_iocbq *tmp_iocb, *piocb; + IOCB_t *cmd = NULL; + + lpfc_fabric_abort_hba(phba); + spin_lock_irq(&phba->hbalock); + list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { + cmd = &piocb->iocb; + if (piocb->iocb_flag & LPFC_IO_LIBDFC) + continue; + /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ + if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || + cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || + cmd->ulpCommand == CMD_CLOSE_XRI_CN || + cmd->ulpCommand == CMD_ABORT_XRI_CN) + continue; + list_move_tail(&piocb->list, &completions); + pring->txq_cnt--; + } + list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { + if (piocb->iocb_flag & LPFC_IO_LIBDFC) + continue; + lpfc_sli_issue_abort_iotag(phba, pring, piocb); + } + spin_unlock_irq(&phba->hbalock); + while (!list_empty(&completions)) { + piocb = list_get_first(&completions, struct lpfc_iocbq, list); + cmd = &piocb->iocb; + list_del_init(&piocb->list); + if (!piocb->iocb_cmpl) + lpfc_sli_release_iocbq(phba, piocb); + else { + cmd->ulpStatus = IOSTAT_LOCAL_REJECT; + cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; + (piocb->iocb_cmpl) (phba, piocb, piocb); + } + } + return; +} + static void lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) @@ -4009,11 +4047,16 @@ static struct lpfc_vport * lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) { struct lpfc_vport *vport; + unsigned long flags; + spin_lock_irqsave(&phba->hbalock, flags); list_for_each_entry(vport, &phba->port_list, listentry) { - if (vport->vpi == vpi) + if (vport->vpi == vpi) { + spin_unlock_irqrestore(&phba->hbalock, flags); return vport; + } } + spin_unlock_irqrestore(&phba->hbalock, flags); return NULL; } -- cgit v1.2.3