summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/scsi_debug.c
diff options
context:
space:
mode:
authorWenchao Hao <haowenchao2@huawei.com>2023-10-10 11:20:51 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2023-10-17 02:50:12 +0200
commit573c2d066eb950dd9bd6e8735d3a859bbc21b3cc (patch)
tree963862fa7cd5ce488327897ec5b22a87b4d9aa8e /drivers/scsi/scsi_debug.c
parentscsi: scsi_debug: Add debugfs interface to fail target reset (diff)
downloadlinux-573c2d066eb950dd9bd6e8735d3a859bbc21b3cc.tar.xz
linux-573c2d066eb950dd9bd6e8735d3a859bbc21b3cc.zip
scsi: scsi_debug: Add param to control sdev's allow_restart
Add new module param "allow_restart" to control scsi_device's allow_restart flag. This flag determines if EH is triggered after a command completes with sense_key 0x6, ASC 0x4 and ASCQ 0x2. EH would be triggered if allow_restart=1 in this condition. The new param can be used with the error injection capability to test how commands completing with sense_key 0x6, ASC 0x4 and ASCQ 0x2 are handled. Signed-off-by: Wenchao Hao <haowenchao2@huawei.com> Link: https://lore.kernel.org/r/20231010092051.608007-11-haowenchao2@huawei.com Tested-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
-rw-r--r--drivers/scsi/scsi_debug.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 2743eb36c58e..67922e2c4c19 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -843,6 +843,7 @@ static bool have_dif_prot;
static bool write_since_sync;
static bool sdebug_statistics = DEF_STATISTICS;
static bool sdebug_wp;
+static bool sdebug_allow_restart;
/* 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;
@@ -5478,6 +5479,9 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp)
sdp->no_uld_attach = 1;
config_cdb_len(sdp);
+ if (sdebug_allow_restart)
+ sdp->allow_restart = 1;
+
devip->debugfs_entry = debugfs_create_dir(dev_name(&sdp->sdev_dev),
sdebug_debugfs_root);
if (IS_ERR_OR_NULL(devip->debugfs_entry))
@@ -6202,6 +6206,7 @@ module_param_named(zone_cap_mb, sdeb_zbc_zone_cap_mb, int, S_IRUGO);
module_param_named(zone_max_open, sdeb_zbc_max_open, int, S_IRUGO);
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(allow_restart, sdebug_allow_restart, bool, S_IRUGO | S_IWUSR);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
@@ -6274,6 +6279,7 @@ MODULE_PARM_DESC(zone_cap_mb, "Zone capacity in MiB (def=zone size)");
MODULE_PARM_DESC(zone_max_open, "Maximum number of open zones; [0] for no limit (def=auto)");
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(allow_restart, "Set scsi_device's allow_restart flag(def=0)");
#define SDEBUG_INFO_LEN 256
static char sdebug_info[SDEBUG_INFO_LEN];