diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 0048a3facd7..9d3eab51393 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1972,6 +1972,42 @@ mem_alloc_error_exit: } /** + * qla4_8xxx_check_temp - Check the ISP82XX temperature. + * @ha: adapter block pointer. + * + * Note: The caller should not hold the idc lock. + **/ +static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) +{ + uint32_t temp, temp_state, temp_val; + int status = QLA_SUCCESS; + + temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE); + + temp_state = qla82xx_get_temp_state(temp); + temp_val = qla82xx_get_temp_val(temp); + + if (temp_state == QLA82XX_TEMP_PANIC) { + ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" + " exceeds maximum allowed. Hardware has been shut" + " down.\n", temp_val); + status = QLA_ERROR; + } else if (temp_state == QLA82XX_TEMP_WARN) { + if (ha->temperature == QLA82XX_TEMP_NORMAL) + ql4_printk(KERN_WARNING, ha, "Device temperature %d" + " degrees C exceeds operating range." + " Immediate action needed.\n", temp_val); + } else { + if (ha->temperature == QLA82XX_TEMP_WARN) + ql4_printk(KERN_INFO, ha, "Device temperature is" + " now %d degrees C in normal range.\n", + temp_val); + } + ha->temperature = temp_state; + return status; +} + +/** * qla4_8xxx_check_fw_alive - Check firmware health * @ha: Pointer to host adapter structure. * @@ -2042,7 +2078,11 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha) test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); - if (dev_state == QLA82XX_DEV_NEED_RESET && + + if (qla4_8xxx_check_temp(ha)) { + set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); + qla4xxx_wake_dpc(ha); + } else if (dev_state == QLA82XX_DEV_NEED_RESET && !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { if (!ql4xdontresethba) { ql4_printk(KERN_INFO, ha, "%s: HW State: " |