Merge tag 'amd64-edac-updates-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / drivers / scsi / libsas / sas_internal.h

diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index 14e21b5fb8ba77b972b6052abb2adc59052d2b1e..f05c63879949a1b70ef1553571d54e87922f0d18 100644 (file)
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -30,6 +30,7 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport_sas.h>
 #include <scsi/libsas.h>
+#include <scsi/sas_ata.h>
 
 #define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
 
@@ -38,6 +39,18 @@
 #define TO_SAS_TASK(_scsi_cmd)  ((void *)(_scsi_cmd)->host_scribble)
 #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
 
+struct sas_phy_data {
+       /* let reset be performed in sas_queue_work() context */
+       struct sas_phy *phy;
+       struct mutex event_lock;
+       int hard_reset;
+       int reset_result;
+       struct work_struct reset_work;
+       int enable;
+       int enable_result;
+       struct work_struct enable_work;
+};
+
 void sas_scsi_recover_host(struct Scsi_Host *shost);
 
 int sas_show_class(enum sas_class class, char *buf);
@@ -56,6 +69,9 @@ enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
 int  sas_init_queue(struct sas_ha_struct *sas_ha);
 int  sas_init_events(struct sas_ha_struct *sas_ha);
 void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
+void sas_disable_revalidation(struct sas_ha_struct *ha);
+void sas_enable_revalidation(struct sas_ha_struct *ha);
+void __sas_drain_work(struct sas_ha_struct *ha);
 
 void sas_deform_port(struct asd_sas_phy *phy, int gone);
 
@@ -64,6 +80,7 @@ void sas_porte_broadcast_rcvd(struct work_struct *work);
 void sas_porte_link_reset_err(struct work_struct *work);
 void sas_porte_timer_event(struct work_struct *work);
 void sas_porte_hard_reset(struct work_struct *work);
+void sas_queue_work(struct sas_ha_struct *ha, struct work_struct *work);
 
 int sas_notify_lldd_dev_found(struct domain_device *);
 void sas_notify_lldd_dev_gone(struct domain_device *);
@@ -72,10 +89,17 @@ int sas_smp_phy_control(struct domain_device *dev, int phy_id,
                        enum phy_func phy_func, struct sas_phy_linkrates *);
 int sas_smp_get_phy_events(struct sas_phy *phy);
 
+void sas_device_set_phy(struct domain_device *dev, struct sas_port *port);
 struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
-
+struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id);
+int sas_ex_phy_discover(struct domain_device *dev, int single);
+int sas_get_report_phy_sata(struct domain_device *dev, int phy_id,
+                           struct smp_resp *rps_resp);
+int sas_try_ata_reset(struct asd_sas_phy *phy);
 void sas_hae_reset(struct work_struct *work);
 
+void sas_free_device(struct kref *kref);
+
 #ifdef CONFIG_SCSI_SAS_HOST_SMP
 extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
                                struct request *rsp);
@@ -90,36 +114,13 @@ static inline int sas_smp_host_handler(struct Scsi_Host *shost,
 }
 #endif
 
-static inline void sas_queue_event(int event, spinlock_t *lock,
-                                  unsigned long *pending,
-                                  struct work_struct *work,
-                                  struct sas_ha_struct *sas_ha)
+static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
 {
-       unsigned long flags;
-
-       spin_lock_irqsave(lock, flags);
-       if (test_bit(event, pending)) {
-               spin_unlock_irqrestore(lock, flags);
-               return;
-       }
-       __set_bit(event, pending);
-       spin_unlock_irqrestore(lock, flags);
-
-       spin_lock_irqsave(&sas_ha->state_lock, flags);
-       if (sas_ha->state != SAS_HA_UNREGISTERED) {
-               scsi_queue_work(sas_ha->core.shost, work);
-       }
-       spin_unlock_irqrestore(&sas_ha->state_lock, flags);
-}
-
-static inline void sas_begin_event(int event, spinlock_t *lock,
-                                  unsigned long *pending)
-{
-       unsigned long flags;
-
-       spin_lock_irqsave(lock, flags);
-       __clear_bit(event, pending);
-       spin_unlock_irqrestore(lock, flags);
+       SAS_DPRINTK("%s: for %s device %16llx returned %d\n",
+                   func, dev->parent ? "exp-attached" :
+                                           "direct-attached",
+                   SAS_ADDR(dev->sas_addr), err);
+       sas_unregister_dev(dev->port, dev);
 }
 
 static inline void sas_fill_in_rphy(struct domain_device *dev,
@@ -132,6 +133,7 @@ static inline void sas_fill_in_rphy(struct domain_device *dev,
        case SATA_DEV:
                /* FIXME: need sata device type */
        case SAS_END_DEV:
+       case SATA_PENDING:
                rphy->identify.device_type = SAS_END_DEVICE;
                break;
        case EDGE_DEV:
@@ -146,6 +148,22 @@ static inline void sas_fill_in_rphy(struct domain_device *dev,
        }
 }
 
+static inline void sas_phy_set_target(struct asd_sas_phy *p, struct domain_device *dev)
+{
+       struct sas_phy *phy = p->phy;
+
+       if (dev) {
+               if (dev_is_sata(dev))
+                       phy->identify.device_type = SAS_END_DEVICE;
+               else
+                       phy->identify.device_type = dev->dev_type;
+               phy->identify.target_port_protocols = dev->tproto;
+       } else {
+               phy->identify.device_type = SAS_PHY_UNUSED;
+               phy->identify.target_port_protocols = 0;
+       }
+}
+
 static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
 {
        struct expander_device *ex = &dev->ex_dev;
@@ -161,4 +179,23 @@ static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
        sas_port_add_phy(ex->parent_port, ex_phy->phy);
 }
 
+static inline struct domain_device *sas_alloc_device(void)
+{
+       struct domain_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+
+       if (dev) {
+               INIT_LIST_HEAD(&dev->siblings);
+               INIT_LIST_HEAD(&dev->dev_list_node);
+               INIT_LIST_HEAD(&dev->disco_list_node);
+               kref_init(&dev->kref);
+               spin_lock_init(&dev->done_lock);
+       }
+       return dev;
+}
+
+static inline void sas_put_device(struct domain_device *dev)
+{
+       kref_put(&dev->kref, sas_free_device);
+}
+
 #endif /* _SAS_INTERNAL_H_ */