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authorNilesh Javali <nilesh.javali@qlogic.com>2014-04-09 21:12:25 -0400
committerChristoph Hellwig <hch@lst.de>2014-05-19 19:12:19 +0200
commit906cbf3d2cef76a6e23207647cbbbc66023886f9 (patch)
treef6aecc180dd7a3eb082907a7e6ec87efcfd63e62 /drivers/scsi/qla4xxx
parentd43ba46fa226b106c66c7c92c8c512ef8515b6ee (diff)
downloadop-kernel-dev-906cbf3d2cef76a6e23207647cbbbc66023886f9.zip
op-kernel-dev-906cbf3d2cef76a6e23207647cbbbc66023886f9.tar.gz
qla4xxx: Export sysfs DDBs from DPC handler
Issue: modprobe qla4xxx is killed by systemd due to timeout. Solution: The exporting of sysfs DDBs from qla4xxx_probe_adapter added delay of approximately 15s due to which system-udevd killed the modprobe of the driver. Added fix to export the sysfs DDBs from the DPC handler. Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/qla4xxx')
-rw-r--r--drivers/scsi/qla4xxx/ql4_def.h1
-rw-r--r--drivers/scsi/qla4xxx/ql4_glbl.h1
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c15
3 files changed, 11 insertions, 6 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 73a5022..8f6d0fb 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -601,6 +601,7 @@ struct scsi_qla_host {
#define DPC_HA_NEED_QUIESCENT 22 /* 0x00400000 ISP-82xx only*/
#define DPC_POST_IDC_ACK 23 /* 0x00800000 */
#define DPC_RESTORE_ACB 24 /* 0x01000000 */
+#define DPC_SYSFS_DDB_EXPORT 25 /* 0x02000000 */
struct Scsi_Host *host; /* pointer to host data */
uint32_t tot_ddbs;
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 2035475..5f58b45 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -281,6 +281,7 @@ int qla4_83xx_get_port_config(struct scsi_qla_host *ha, uint32_t *config);
int qla4_83xx_set_port_config(struct scsi_qla_host *ha, uint32_t *config);
int qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host *ha);
int qla4_83xx_is_detached(struct scsi_qla_host *ha);
+int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha);
extern int ql4xextended_error_logging;
extern int ql4xdontresethba;
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index bb16040..9be829b 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -4565,6 +4565,7 @@ static void qla4xxx_timer(struct scsi_qla_host *ha)
test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
+ test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
test_bit(DPC_AEN, &ha->dpc_flags)) {
DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
" - dpc flags = 0x%lx\n",
@@ -5429,6 +5430,11 @@ dpc_post_reset_ha:
qla4xxx_relogin_all_devices(ha);
}
}
+ if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
+ if (qla4xxx_sysfs_ddb_export(ha))
+ ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
+ __func__);
+ }
}
/**
@@ -8406,7 +8412,7 @@ exit_ddb_del:
*
* Export the firmware DDB for all send targets and normal targets to sysfs.
**/
-static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
+int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
{
struct dev_db_entry *fw_ddb_entry = NULL;
dma_addr_t fw_ddb_entry_dma;
@@ -8844,11 +8850,8 @@ skip_retry_init:
ql4_printk(KERN_ERR, ha,
"%s: No iSCSI boot target configured\n", __func__);
- if (qla4xxx_sysfs_ddb_export(ha))
- ql4_printk(KERN_ERR, ha,
- "%s: Error exporting ddb to sysfs\n", __func__);
-
- /* Perform the build ddb list and login to each */
+ set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
+ /* Perform the build ddb list and login to each */
qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
qla4xxx_wait_login_resp_boot_tgt(ha);
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