diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 133 |
1 files changed, 66 insertions, 67 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 2fa695bf38b7..877e4f446709 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1079,43 +1079,6 @@ qc24_fail_command: } /* - * qla2x00_eh_wait_on_command - * Waits for the command to be returned by the Firmware for some - * max time. - * - * Input: - * cmd = Scsi Command to wait on. - * - * Return: - * Completed in time : QLA_SUCCESS - * Did not complete in time : QLA_FUNCTION_FAILED - */ -static int -qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd) -{ -#define ABORT_POLLING_PERIOD 1000 -#define ABORT_WAIT_ITER ((2 * 1000) / (ABORT_POLLING_PERIOD)) - unsigned long wait_iter = ABORT_WAIT_ITER; - scsi_qla_host_t *vha = shost_priv(cmd->device->host); - struct qla_hw_data *ha = vha->hw; - srb_t *sp = scsi_cmd_priv(cmd); - int ret = QLA_SUCCESS; - - if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) { - ql_dbg(ql_dbg_taskm, vha, 0x8005, - "Return:eh_wait.\n"); - return ret; - } - - while (sp->type && wait_iter--) - msleep(ABORT_POLLING_PERIOD); - if (sp->type) - ret = QLA_FUNCTION_FAILED; - - return ret; -} - -/* * qla2x00_wait_for_hba_online * Wait till the HBA is online after going through * <= MAX_RETRIES_OF_ISP_ABORT or @@ -1365,6 +1328,9 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) return ret; } +#define ABORT_POLLING_PERIOD 1000 +#define ABORT_WAIT_ITER ((2 * 1000) / (ABORT_POLLING_PERIOD)) + /* * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED. */ @@ -1378,41 +1344,73 @@ __qla2x00_eh_wait_for_pending_commands(struct qla_qpair *qpair, unsigned int t, struct req_que *req = qpair->req; srb_t *sp; struct scsi_cmnd *cmd; + unsigned long wait_iter = ABORT_WAIT_ITER; + bool found; + struct qla_hw_data *ha = vha->hw; status = QLA_SUCCESS; - spin_lock_irqsave(qpair->qp_lock_ptr, flags); - for (cnt = 1; status == QLA_SUCCESS && - cnt < req->num_outstanding_cmds; cnt++) { - sp = req->outstanding_cmds[cnt]; - if (!sp) - continue; - if (sp->type != SRB_SCSI_CMD) - continue; - if (vha->vp_idx != sp->vha->vp_idx) - continue; - match = 0; - cmd = GET_CMD_SP(sp); - switch (type) { - case WAIT_HOST: - match = 1; - break; - case WAIT_TARGET: - match = cmd->device->id == t; - break; - case WAIT_LUN: - match = (cmd->device->id == t && - cmd->device->lun == l); - break; - } - if (!match) - continue; + while (wait_iter--) { + found = false; - spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); - status = qla2x00_eh_wait_on_command(cmd); spin_lock_irqsave(qpair->qp_lock_ptr, flags); + for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) { + sp = req->outstanding_cmds[cnt]; + if (!sp) + continue; + if (sp->type != SRB_SCSI_CMD) + continue; + if (vha->vp_idx != sp->vha->vp_idx) + continue; + match = 0; + cmd = GET_CMD_SP(sp); + switch (type) { + case WAIT_HOST: + match = 1; + break; + case WAIT_TARGET: + if (sp->fcport) + match = sp->fcport->d_id.b24 == t; + else + match = 0; + break; + case WAIT_LUN: + if (sp->fcport) + match = (sp->fcport->d_id.b24 == t && + cmd->device->lun == l); + else + match = 0; + break; + } + if (!match) + continue; + + spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); + + if (unlikely(pci_channel_offline(ha->pdev)) || + ha->flags.eeh_busy) { + ql_dbg(ql_dbg_taskm, vha, 0x8005, + "Return:eh_wait.\n"); + return status; + } + + /* + * SRB_SCSI_CMD is still in the outstanding_cmds array. + * it means scsi_done has not called. Wait for it to + * clear from outstanding_cmds. + */ + msleep(ABORT_POLLING_PERIOD); + spin_lock_irqsave(qpair->qp_lock_ptr, flags); + found = true; + } + spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); + + if (!found) + break; } - spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); + + if (wait_iter == -1) + status = QLA_FUNCTION_FAILED; return status; } @@ -5090,7 +5088,8 @@ struct scsi_qla_host *qla2x00_create_host(const struct scsi_host_template *sht, } INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn); - sprintf(vha->host_str, "%s_%lu", QLA2XXX_DRIVER_NAME, vha->host_no); + snprintf(vha->host_str, sizeof(vha->host_str), "%s_%lu", + QLA2XXX_DRIVER_NAME, vha->host_no); ql_dbg(ql_dbg_init, vha, 0x0041, "Allocated the host=%p hw=%p vha=%p dev_name=%s", vha->host, vha->hw, vha, |