dect/linux-2.6
Archived
14
0
Fork 0
Code Releases Activity

[SCSI] qla4xxx: Disable generating pause frames in case of FW hung

Browse source 
In case of FW hung  ISP82xx generates continuous pause frames
which causes switch to disable port.
Added fix to disable generating pause frames in case of
FW hung

Signed-off-by: Giridhar Malavali <giridhar.malavali@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>
This commit is contained in:
Giridhar Malavali 2012-01-11 02:44:16 -08:00 committed by James Bottomley
parent 4f77083ed0
commit e6bd0ebd4a
3 changed files with 20 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/scsi/qla4xxx/ql4_mbx.c
View file

@ -219,6 +219,13 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
ha->mailbox_timeout_count++;
mbx_sts[0] = (-1);
set_bit(DPC_RESET_HA, &ha->dpc_flags);
if (is_qla8022(ha)) {
ql4_printk(KERN_INFO, ha,
"disabling pause transmit on port 0 & 1.\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0 |
CRB_NIU_XG_PAUSE_CTL_P1);
}
goto mbox_exit;
}

3
drivers/scsi/qla4xxx/ql4_nx.h
View file

@ -39,6 +39,9 @@ enum {
QLA82XX_TEMP_PANIC /* Fatal error, hardware has shut down. */
};
#define CRB_NIU_XG_PAUSE_CTL_P0 0x1
#define CRB_NIU_XG_PAUSE_CTL_P1 0x8
#define QLA82XX_HW_H0_CH_HUB_ADR 0x05
#define QLA82XX_HW_H1_CH_HUB_ADR 0x0E
#define QLA82XX_HW_H2_CH_HUB_ADR 0x03

10
drivers/scsi/qla4xxx/ql4_os.c
View file

@ -2080,6 +2080,11 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
if (qla4_8xxx_check_temp(ha)) {
ql4_printk(KERN_INFO, ha, "disabling pause"
" transmit on port 0 & 1.\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0 |
CRB_NIU_XG_PAUSE_CTL_P1);
set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
qla4xxx_wake_dpc(ha);
} else if (dev_state == QLA82XX_DEV_NEED_RESET &&
@ -2099,6 +2104,11 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
} else {
/* Check firmware health */
if (qla4_8xxx_check_fw_alive(ha)) {
ql4_printk(KERN_INFO, ha, "disabling pause"
" transmit on port 0 & 1.\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0 |
CRB_NIU_XG_PAUSE_CTL_P1);
halt_status = qla4_8xxx_rd_32(ha,
QLA82XX_PEG_HALT_STATUS1);