Add new module param target_eh to control if enable target based error
handler, and param target_eh_fallback to control if fallback to further
recover when target recovery can not recover all error commands.
This is used to test the target based error handle.
Signed-off-by: Wenchao Hao <haowenchao2@xxxxxxxxxx>
---
drivers/scsi/scsi_debug.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index af3d43c9db6f..9a8aa48fb8a4 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -843,6 +843,8 @@ static bool sdebug_statistics = DEF_STATISTICS;
static bool sdebug_wp;
static bool sdebug_lun_eh;
static bool sdebug_lun_eh_fallback;
+static bool sdebug_target_eh;
+static bool sdebug_target_eh_fallback;
/* Following enum: 0: no zbc, def; 1: host aware; 2: host managed */
static enum blk_zoned_model sdeb_zbc_model = BLK_ZONED_NONE;
static char *sdeb_zbc_model_s;
@@ -1137,6 +1139,9 @@ static int sdebug_target_alloc(struct scsi_target *starget)
starget->hostdata = targetip;
+ if (sdebug_target_eh)
+ return scsi_target_setup_eh(starget, sdebug_target_eh_fallback);
+
return 0;
}
@@ -1152,6 +1157,9 @@ static void sdebug_target_destroy(struct scsi_target *starget)
{
struct sdebug_target_info *targetip;
+ if (sdebug_target_eh)
+ scsi_target_clear_eh(starget);
+
targetip = (struct sdebug_target_info *)starget->hostdata;
if (targetip) {
starget->hostdata = NULL;
@@ -6177,6 +6185,8 @@ module_param_named(zone_nr_conv, sdeb_zbc_nr_conv, int, S_IRUGO);
module_param_named(zone_size_mb, sdeb_zbc_zone_size_mb, int, S_IRUGO);
module_param_named(lun_eh, sdebug_lun_eh, bool, S_IRUGO);
module_param_named(lun_eh_fallback, sdebug_lun_eh_fallback, bool, S_IRUGO);
+module_param_named(target_eh, sdebug_target_eh, bool, S_IRUGO);
+module_param_named(target_eh_fallback, sdebug_target_eh_fallback, bool, S_IRUGO);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
@@ -6251,6 +6261,8 @@ MODULE_PARM_DESC(zone_nr_conv, "Number of conventional zones (def=1)");
MODULE_PARM_DESC(zone_size_mb, "Zone size in MiB (def=auto)");
MODULE_PARM_DESC(lun_eh, "LUN based error handle (def=0)");
MODULE_PARM_DESC(lun_eh_fallback, "Fallback to further recovery if LUN recovery failed (def=0)");
+MODULE_PARM_DESC(target_eh, "target based error handle (def=0)");
+MODULE_PARM_DESC(target_eh_fallback, "Fallback to further recovery if target recovery failed (def=0)");
#define SDEBUG_INFO_LEN 256
static char sdebug_info[SDEBUG_INFO_LEN];
--
2.35.3
