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[SCSI] qla4xxx: Temperature monitoring for ISP82XX core.
During watchdog, need to monitor temperature of ISP82XX core and set device state to FAILED when temperature reaches "Panic" level. Signed-off-by: Mike Hernandez <michael.hernandez@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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parent
124dd90f65
commit
4f77083ed0
3 changed files with 58 additions and 4 deletions
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@ -671,6 +671,7 @@ struct scsi_qla_host {
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uint16_t pri_ddb_idx;
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uint16_t sec_ddb_idx;
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int is_reset;
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uint16_t temperature;
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};
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struct ql4_task_data {
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@ -19,12 +19,25 @@
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#define PHAN_PEG_RCV_INITIALIZED 0xff01
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/*CRB_RELATED*/
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#define QLA82XX_CRB_BASE QLA82XX_CAM_RAM(0x200)
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#define QLA82XX_REG(X) (QLA82XX_CRB_BASE+(X))
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#define QLA82XX_CRB_BASE (QLA82XX_CAM_RAM(0x200))
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#define QLA82XX_REG(X) (QLA82XX_CRB_BASE+(X))
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#define CRB_CMDPEG_STATE QLA82XX_REG(0x50)
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#define CRB_RCVPEG_STATE QLA82XX_REG(0x13c)
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#define CRB_DMA_SHIFT QLA82XX_REG(0xcc)
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#define CRB_TEMP_STATE QLA82XX_REG(0x1b4)
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#define qla82xx_get_temp_val(x) ((x) >> 16)
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#define qla82xx_get_temp_state(x) ((x) & 0xffff)
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#define qla82xx_encode_temp(val, state) (((val) << 16) | (state))
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/*
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* Temperature control.
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*/
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enum {
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QLA82XX_TEMP_NORMAL = 0x1, /* Normal operating range */
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QLA82XX_TEMP_WARN, /* Sound alert, temperature getting high */
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QLA82XX_TEMP_PANIC /* Fatal error, hardware has shut down. */
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};
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#define QLA82XX_HW_H0_CH_HUB_ADR 0x05
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#define QLA82XX_HW_H1_CH_HUB_ADR 0x0E
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@ -1971,6 +1971,42 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
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return QLA_ERROR;
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}
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/**
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* qla4_8xxx_check_temp - Check the ISP82XX temperature.
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* @ha: adapter block pointer.
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*
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* Note: The caller should not hold the idc lock.
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**/
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static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
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{
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uint32_t temp, temp_state, temp_val;
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int status = QLA_SUCCESS;
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temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE);
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temp_state = qla82xx_get_temp_state(temp);
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temp_val = qla82xx_get_temp_val(temp);
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if (temp_state == QLA82XX_TEMP_PANIC) {
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ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
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" exceeds maximum allowed. Hardware has been shut"
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" down.\n", temp_val);
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status = QLA_ERROR;
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} else if (temp_state == QLA82XX_TEMP_WARN) {
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if (ha->temperature == QLA82XX_TEMP_NORMAL)
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ql4_printk(KERN_WARNING, ha, "Device temperature %d"
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" degrees C exceeds operating range."
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" Immediate action needed.\n", temp_val);
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} else {
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if (ha->temperature == QLA82XX_TEMP_WARN)
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ql4_printk(KERN_INFO, ha, "Device temperature is"
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" now %d degrees C in normal range.\n",
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temp_val);
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}
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ha->temperature = temp_state;
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return status;
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}
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/**
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* qla4_8xxx_check_fw_alive - Check firmware health
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* @ha: Pointer to host adapter structure.
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@ -2042,7 +2078,11 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
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test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
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test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
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dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
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if (dev_state == QLA82XX_DEV_NEED_RESET &&
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if (qla4_8xxx_check_temp(ha)) {
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set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
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qla4xxx_wake_dpc(ha);
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} else if (dev_state == QLA82XX_DEV_NEED_RESET &&
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!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
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if (!ql4xdontresethba) {
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ql4_printk(KERN_INFO, ha, "%s: HW State: "
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