scsi: libsas: shut down the PHY if events reached the threshold

[mirror_ubuntu-bionic-kernel.git] / include / scsi / libsas.h

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 61c84d536a7ee05053e47b77c33c77ec02d30fc1..26683e2452ba12f8aa63218312993522974d2407 100644 (file)
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -75,6 +75,7 @@ enum phy_event {
        PHYE_OOB_ERROR,
        PHYE_SPINUP_HOLD,             /* hot plug SATA, no COMWAKE sent */
        PHYE_RESUME_TIMEOUT,
+       PHYE_SHUTDOWN,
        PHY_NUM_EVENTS,
 };
 
@@ -311,12 +312,15 @@ static inline void INIT_SAS_EVENT(struct asd_sas_event *ev,
        ev->event = event;
 }
 
+#define SAS_PHY_SHUTDOWN_THRES   1024
 
 /* The phy pretty much is controlled by the LLDD.
  * The class only reads those fields.
  */
 struct asd_sas_phy {
 /* private: */
+       atomic_t event_nr;
+       int in_shutdown;
        int error;
        int suspended;
 
@@ -404,6 +408,8 @@ struct sas_ha_struct {
 
        struct list_head eh_done_q;  /* complete via scsi_eh_flush_done_q */
        struct list_head eh_ata_q; /* scmds to promote from sas to ata eh */
+
+       int event_thres;
 };
 
 #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)