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[SCSI] qla4xxx: Fix exporting boot targets to sysfs

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The driver failed to export primary boot target if secondary target did not
exist in the FLASH. If boot targets are not valid then driver assumed 0 and
1 as default boot targets. Since these target did not exist in flash, the
driver failed exporting all the targets.

JIRA Key: UPSISCSI-148

Signed-off-by: Lalit Chandivade <lalit.chandivade@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:
Lalit Chandivade 2011-10-07 16:55:43 -07:00 committed by James Bottomley
parent 4549415af6
commit 8de5b95824
1 changed files with 21 additions and 16 deletions
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37
drivers/scsi/qla4xxx/ql4_os.c
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@ -2812,15 +2812,11 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
val = rd_nvram_byte(ha, pri_addr);
if (val & BIT_7)
ddb_index[0] = (val & 0x7f);
else
ddb_index[0] = 0;
/* get secondary valid target index */
val = rd_nvram_byte(ha, sec_addr);
if (val & BIT_7)
ddb_index[1] = (val & 0x7f);
else
ddb_index[1] = 1;
} else if (is_qla8022(ha)) {
buf = dma_alloc_coherent(&ha->pdev->dev, size,
@ -2862,15 +2858,10 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
/* get primary valid target index */
if (buf[2] & BIT_7)
ddb_index[0] = buf[2] & 0x7f;
else
ddb_index[0] = 0;
/* get secondary valid target index */
if (buf[11] & BIT_7)
ddb_index[1] = buf[11] & 0x7f;
else
ddb_index[1] = 1;
} else {
ret = QLA_ERROR;
goto exit_boot_info;
@ -2980,9 +2971,12 @@ exit_boot_target:
static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
{
uint16_t ddb_index[2];
int ret = QLA_SUCCESS;
int ret = QLA_ERROR;
int rval;
memset(ddb_index, 0, sizeof(ddb_index));
ddb_index[0] = 0xffff;
ddb_index[1] = 0xffff;
ret = get_fw_boot_info(ha, ddb_index);
if (ret != QLA_SUCCESS) {
DEBUG2(ql4_printk(KERN_ERR, ha,
@ -2990,19 +2984,30 @@ static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
return ret;
}
ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
if (ddb_index[0] == 0xffff)
goto sec_target;
rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
ddb_index[0]);
if (ret != QLA_SUCCESS) {
if (rval != QLA_SUCCESS) {
DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
"primary target\n", __func__));
}
} else
ret = QLA_SUCCESS;
ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
sec_target:
if (ddb_index[1] == 0xffff)
goto exit_get_boot_info;
rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
ddb_index[1]);
if (ret != QLA_SUCCESS) {
if (rval != QLA_SUCCESS) {
DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
"secondary target\n", __func__));
}
} else
ret = QLA_SUCCESS;
exit_get_boot_info:
return ret;
}