Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual driver suspects: arcmsr,
  scsi_debug, mpt3sas, lpfc, cxlflash, qla2xxx, aacraid, megaraid_sas,
  hisi_sas.

  We also have a rework of the libsas hotplug handling to make it more
  robust, a slew of 32 bit time conversions and fixes, and a host of the
  usual minor updates and style changes. The biggest potential for
  regressions is the libsas hotplug changes, but so far they seem stable
  under testing"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (313 commits)
  scsi: qla2xxx: Fix logo flag for qlt_free_session_done()
  scsi: arcmsr: avoid do_gettimeofday
  scsi: core: Add VENDOR_SPECIFIC sense code definitions
  scsi: qedi: Drop cqe response during connection recovery
  scsi: fas216: fix sense buffer initialization
  scsi: ibmvfc: Remove unneeded semicolons
  scsi: hisi_sas: fix a bug in hisi_sas_dev_gone()
  scsi: hisi_sas: directly attached disk LED feature for v2 hw
  scsi: hisi_sas: devicetree: bindings: add LED feature for v2 hw
  scsi: megaraid_sas: NVMe passthrough command support
  scsi: megaraid: use ktime_get_real for firmware time
  scsi: fnic: use 64-bit timestamps
  scsi: qedf: Fix error return code in __qedf_probe()
  scsi: devinfo: fix format of the device list
  scsi: qla2xxx: Update driver version to 10.00.00.05-k
  scsi: qla2xxx: Add XCB counters to debugfs
  scsi: qla2xxx: Fix queue ID for async abort with Multiqueue
  scsi: qla2xxx: Fix warning for code intentation in __qla24xx_handle_gpdb_event()
  scsi: qla2xxx: Fix warning during port_name debug print
  scsi: qla2xxx: Fix warning in qla2x00_async_iocb_timeout()
  ...

1 files changed, 22 insertions, 8 deletions

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 6df6fe0c2198..225ab7783dfd 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -75,16 +75,15 @@ enum phy_event {
         PHYE_OOB_ERROR,
         PHYE_SPINUP_HOLD,             /* hot plug SATA, no COMWAKE sent */
         PHYE_RESUME_TIMEOUT,
+        PHYE_SHUTDOWN,
         PHY_NUM_EVENTS,
 };
 
 enum discover_event {
         DISCE_DISCOVER_DOMAIN   = 0U,
         DISCE_REVALIDATE_DOMAIN,
-        DISCE_PROBE,
         DISCE_SUSPEND,
         DISCE_RESUME,
-        DISCE_DESTRUCT,
         DISC_NUM_EVENTS,
 };
 
@@ -261,6 +260,7 @@ struct asd_sas_port {
         struct list_head dev_list;
         struct list_head disco_list;
         struct list_head destroy_list;
+        struct list_head sas_port_del_list;
         enum   sas_linkrate linkrate;
 
         struct sas_work work;
@@ -292,6 +292,7 @@ struct asd_sas_port {
 struct asd_sas_event {
         struct sas_work work;
         struct asd_sas_phy *phy;
+        int event;
 };
 
 static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work)
@@ -301,17 +302,24 @@ static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work)
         return ev;
 }
 
+static inline void INIT_SAS_EVENT(struct asd_sas_event *ev,
+                void (*fn)(struct work_struct *),
+                struct asd_sas_phy *phy, int event)
+{
+        INIT_SAS_WORK(&ev->work, fn);
+        ev->phy = phy;
+        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: */
-        struct asd_sas_event   port_events[PORT_NUM_EVENTS];
-        struct asd_sas_event   phy_events[PHY_NUM_EVENTS];
-
-        unsigned long port_events_pending;
-        unsigned long phy_events_pending;
-
+        atomic_t event_nr;
+        int in_shutdown;
         int error;
         int suspended;
 
@@ -380,6 +388,9 @@ struct sas_ha_struct {
         struct device *dev;       /* should be set */
         struct module *lldd_module; /* should be set */
 
+        struct workqueue_struct *event_q;
+        struct workqueue_struct *disco_q;
+
         u8 *sas_addr;             /* must be set */
         u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
 
@@ -399,6 +410,8 @@ 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)
@@ -670,6 +683,7 @@ extern int sas_bios_param(struct scsi_device *,
                           sector_t capacity, int *hsc);
 extern struct scsi_transport_template *
 sas_domain_attach_transport(struct sas_domain_function_template *);
+extern struct device_attribute dev_attr_phy_event_threshold;
 
 int  sas_discover_root_expander(struct domain_device *);