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[SCSI] qla4xxx: Added support for force firmware dump 

This patch force driver to collect firmware dump using following command:-
"echo 2 > /sys/class/scsi_host/hostX/device/fw_dump"

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Vikas Chaudhary 2013-01-20 23:51:02 -05:00 committed by James Bottomley
parent 137257da9e
commit 9661975f17
3 changed files with 13 additions and 6 deletions
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2
drivers/scsi/qla4xxx/ql4_83xx.c
View File

@ -538,7 +538,7 @@ struct device_info {
int port_num;
};
static int qla4_83xx_can_perform_reset(struct scsi_qla_host *ha)
int qla4_83xx_can_perform_reset(struct scsi_qla_host *ha)
{
uint32_t drv_active;
uint32_t dev_part, dev_part1, dev_part2;

16
drivers/scsi/qla4xxx/ql4_attr.c
View File

@ -74,16 +74,22 @@ qla4_8xxx_sysfs_write_fw_dump(struct file *filep, struct kobject *kobj,
}
break;
case 2:
/* Reset HBA */
/* Reset HBA and collect FW dump */
ha->isp_ops->idc_lock(ha);
dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
if (dev_state == QLA8XXX_DEV_READY) {
ql4_printk(KERN_INFO, ha,
"%s: Setting Need reset, reset_owner is 0x%x.\n",
__func__, ha->func_num);
ql4_printk(KERN_INFO, ha, "%s: Setting Need reset\n",
__func__);
qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
QLA8XXX_DEV_NEED_RESET);
set_bit(AF_8XXX_RST_OWNER, &ha->flags);
if (is_qla8022(ha) ||
(is_qla8032(ha) &&
qla4_83xx_can_perform_reset(ha))) {
set_bit(AF_8XXX_RST_OWNER, &ha->flags);
set_bit(AF_FW_RECOVERY, &ha->flags);
ql4_printk(KERN_INFO, ha, "%s: Reset owner is 0x%x\n",
__func__, ha->func_num);
}
} else
ql4_printk(KERN_INFO, ha,
"%s: Reset not performed as device state is 0x%x\n",

1
drivers/scsi/qla4xxx/ql4_glbl.h
View File

@ -260,6 +260,7 @@ int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha);
int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha);
void qla4_83xx_disable_pause(struct scsi_qla_host *ha);
void qla4_83xx_enable_mbox_intrs(struct scsi_qla_host *ha);
int qla4_83xx_can_perform_reset(struct scsi_qla_host *ha);
extern int ql4xextended_error_logging;
extern int ql4xdontresethba;