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-rw-r--r--include/scsi/scsi_host.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index f1f2644137b..50266c9405f 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -355,6 +355,19 @@ struct scsi_host_template {
*/
enum blk_eh_timer_return (*eh_timed_out)(struct scsi_cmnd *);
+ /* This is an optional routine that allows transport to initiate
+ * LLD adapter or firmware reset using sysfs attribute.
+ *
+ * Return values: 0 on success, -ve value on failure.
+ *
+ * Status: OPTIONAL
+ */
+
+ int (*host_reset)(struct Scsi_Host *shost, int reset_type);
+#define SCSI_ADAPTER_RESET 1
+#define SCSI_FIRMWARE_RESET 2
+
+
/*
* Name of proc directory
*/
@@ -791,7 +804,8 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost)
**/
static inline int scsi_host_scan_allowed(struct Scsi_Host *shost)
{
- return shost->shost_state == SHOST_RUNNING;
+ return shost->shost_state == SHOST_RUNNING ||
+ shost->shost_state == SHOST_RECOVERY;
}
extern void scsi_unblock_requests(struct Scsi_Host *);