diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index dc7e58315870..2674f4c16bc3 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -943,6 +943,30 @@ sp_get(struct srb *sp) atomic_inc(&sp->ref_count); } +#define ISP_REG_DISCONNECT 0xffffffffU +/************************************************************************** +* qla2x00_isp_reg_stat +* +* Description: +* Read the host status register of ISP before aborting the command. +* +* Input: +* ha = pointer to host adapter structure. +* +* +* Returns: +* Either true or false. +* +* Note: Return true if there is register disconnect. +**************************************************************************/ +static inline +uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha) +{ + struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + + return ((RD_REG_DWORD(®->host_status)) == ISP_REG_DISCONNECT); +} + /************************************************************************** * qla2xxx_eh_abort * @@ -970,6 +994,11 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) int rval, wait = 0; struct qla_hw_data *ha = vha->hw; + if (qla2x00_isp_reg_stat(ha)) { + ql_log(ql_log_info, vha, 0x8042, + "PCI/Register disconnect, exiting.\n"); + return FAILED; + } if (!CMD_SP(cmd)) return SUCCESS; @@ -1153,6 +1182,12 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) scsi_qla_host_t *vha = shost_priv(cmd->device->host); struct qla_hw_data *ha = vha->hw; + if (qla2x00_isp_reg_stat(ha)) { + ql_log(ql_log_info, vha, 0x803e, + "PCI/Register disconnect, exiting.\n"); + return FAILED; + } + return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd, ha->isp_ops->lun_reset); } @@ -1163,6 +1198,12 @@ qla2xxx_eh_target_reset(struct scsi_cmnd *cmd) scsi_qla_host_t *vha = shost_priv(cmd->device->host); struct qla_hw_data *ha = vha->hw; + if (qla2x00_isp_reg_stat(ha)) { + ql_log(ql_log_info, vha, 0x803f, + "PCI/Register disconnect, exiting.\n"); + return FAILED; + } + return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd, ha->isp_ops->target_reset); } @@ -1190,6 +1231,13 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) int ret = FAILED; unsigned int id; uint64_t lun; + struct qla_hw_data *ha = vha->hw; + + if (qla2x00_isp_reg_stat(ha)) { + ql_log(ql_log_info, vha, 0x8040, + "PCI/Register disconnect, exiting.\n"); + return FAILED; + } id = cmd->device->id; lun = cmd->device->lun; @@ -1259,6 +1307,13 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) uint64_t lun; scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); + if (qla2x00_isp_reg_stat(ha)) { + ql_log(ql_log_info, vha, 0x8041, + "PCI/Register disconnect, exiting.\n"); + schedule_work(&ha->board_disable); + return SUCCESS; + } + id = cmd->device->id; lun = cmd->device->lun; |