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Diffstat (limited to 'drivers/scsi/isci/port.h')
-rw-r--r--drivers/scsi/isci/port.h114
1 files changed, 43 insertions, 71 deletions
diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h
index 08116090eb70..6b56240c2051 100644
--- a/drivers/scsi/isci/port.h
+++ b/drivers/scsi/isci/port.h
@@ -95,14 +95,11 @@ enum isci_status {
* @timer: timeout start/stop operations
*/
struct isci_port {
- enum isci_status status;
struct isci_host *isci_host;
- struct asd_sas_port sas_port;
struct list_head remote_dev_list;
- spinlock_t state_lock;
struct list_head domain_dev_list;
- struct completion start_complete;
- struct completion hard_reset_complete;
+ #define IPORT_RESET_PENDING 0
+ unsigned long state;
enum sci_status hard_reset_status;
struct sci_base_state_machine sm;
bool ready_exit;
@@ -147,70 +144,47 @@ struct sci_port_properties {
};
/**
- * enum sci_port_states - This enumeration depicts all the states for the
- * common port state machine.
- *
- *
+ * enum sci_port_states - port state machine states
+ * @SCI_PORT_STOPPED: port has successfully been stopped. In this state
+ * no new IO operations are permitted. This state is
+ * entered from the STOPPING state.
+ * @SCI_PORT_STOPPING: port is in the process of stopping. In this
+ * state no new IO operations are permitted, but
+ * existing IO operations are allowed to complete.
+ * This state is entered from the READY state.
+ * @SCI_PORT_READY: port is now ready. Thus, the user is able to
+ * perform IO operations on this port. This state is
+ * entered from the STARTING state.
+ * @SCI_PORT_SUB_WAITING: port is started and ready but has no active
+ * phys.
+ * @SCI_PORT_SUB_OPERATIONAL: port is started and ready and there is at
+ * least one phy operational.
+ * @SCI_PORT_SUB_CONFIGURING: port is started and there was an
+ * add/remove phy event. This state is only
+ * used in Automatic Port Configuration Mode
+ * (APC)
+ * @SCI_PORT_RESETTING: port is in the process of performing a hard
+ * reset. Thus, the user is unable to perform IO
+ * operations on this port. This state is entered
+ * from the READY state.
+ * @SCI_PORT_FAILED: port has failed a reset request. This state is
+ * entered when a port reset request times out. This
+ * state is entered from the RESETTING state.
*/
-enum sci_port_states {
- /**
- * This state indicates that the port has successfully been stopped.
- * In this state no new IO operations are permitted.
- * This state is entered from the STOPPING state.
- */
- SCI_PORT_STOPPED,
-
- /**
- * This state indicates that the port is in the process of stopping.
- * In this state no new IO operations are permitted, but existing IO
- * operations are allowed to complete.
- * This state is entered from the READY state.
- */
- SCI_PORT_STOPPING,
-
- /**
- * This state indicates the port is now ready. Thus, the user is
- * able to perform IO operations on this port.
- * This state is entered from the STARTING state.
- */
- SCI_PORT_READY,
-
- /**
- * The substate where the port is started and ready but has no
- * active phys.
- */
- SCI_PORT_SUB_WAITING,
-
- /**
- * The substate where the port is started and ready and there is
- * at least one phy operational.
- */
- SCI_PORT_SUB_OPERATIONAL,
-
- /**
- * The substate where the port is started and there was an
- * add/remove phy event. This state is only used in Automatic
- * Port Configuration Mode (APC)
- */
- SCI_PORT_SUB_CONFIGURING,
-
- /**
- * This state indicates the port is in the process of performing a hard
- * reset. Thus, the user is unable to perform IO operations on this
- * port.
- * This state is entered from the READY state.
- */
- SCI_PORT_RESETTING,
-
- /**
- * This state indicates the port has failed a reset request. This state
- * is entered when a port reset request times out.
- * This state is entered from the RESETTING state.
- */
- SCI_PORT_FAILED,
-
-
-};
+#define PORT_STATES {\
+ C(PORT_STOPPED),\
+ C(PORT_STOPPING),\
+ C(PORT_READY),\
+ C(PORT_SUB_WAITING),\
+ C(PORT_SUB_OPERATIONAL),\
+ C(PORT_SUB_CONFIGURING),\
+ C(PORT_RESETTING),\
+ C(PORT_FAILED),\
+ }
+#undef C
+#define C(a) SCI_##a
+enum sci_port_states PORT_STATES;
+#undef C
static inline void sci_port_decrement_request_count(struct isci_port *iport)
{
@@ -296,9 +270,6 @@ void sci_port_get_attached_sas_address(
struct isci_port *iport,
struct sci_sas_address *sas_address);
-enum isci_status isci_port_get_state(
- struct isci_port *isci_port);
-
void isci_port_formed(struct asd_sas_phy *);
void isci_port_deformed(struct asd_sas_phy *);
@@ -309,4 +280,5 @@ void isci_port_init(
int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport,
struct isci_phy *iphy);
+int isci_ata_check_ready(struct domain_device *dev);
#endif /* !defined(_ISCI_PORT_H_) */