diff options
Diffstat (limited to 'drivers/scsi/isci/remote_node_context.h')
| -rw-r--r-- | drivers/scsi/isci/remote_node_context.h | 43 |
1 files changed, 33 insertions, 10 deletions
diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index a241e0f4c865..a703b9ce0c2c 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -75,8 +75,13 @@ */ #define SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX 0x0FFF -#define SCU_HARDWARE_SUSPENSION (0) -#define SCI_SOFTWARE_SUSPENSION (1) +enum sci_remote_node_suspension_reasons { + SCI_HW_SUSPEND, + SCI_SW_SUSPEND_NORMAL, + SCI_SW_SUSPEND_LINKHANG_DETECT +}; +#define SCI_SOFTWARE_SUSPEND_CMD SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX +#define SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT SCU_EVENT_TL_RNC_SUSPEND_TX_RX struct isci_request; struct isci_remote_device; @@ -137,9 +142,13 @@ const char *rnc_state_name(enum scis_sds_remote_node_context_states state); * node context. */ enum sci_remote_node_context_destination_state { - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED, - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY, - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL + RNC_DEST_UNSPECIFIED, + RNC_DEST_READY, + RNC_DEST_FINAL, + RNC_DEST_SUSPENDED, /* Set when suspend during post/invalidate */ + RNC_DEST_SUSPENDED_RESUME /* Set when a resume was done during posting + * or invalidating and already suspending. + */ }; /** @@ -156,10 +165,12 @@ struct sci_remote_node_context { u16 remote_node_index; /** - * This field is the recored suspension code or the reason for the remote node + * This field is the recored suspension type of the remote node * context suspension. */ - u32 suspension_code; + u32 suspend_type; + enum sci_remote_node_suspension_reasons suspend_reason; + u32 suspend_count; /** * This field is true if the remote node context is resuming from its current @@ -193,6 +204,8 @@ void sci_remote_node_context_construct(struct sci_remote_node_context *rnc, bool sci_remote_node_context_is_ready( struct sci_remote_node_context *sci_rnc); +bool sci_remote_node_context_is_suspended(struct sci_remote_node_context *sci_rnc); + enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc, u32 event_code); enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context *sci_rnc, @@ -200,14 +213,24 @@ enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context void *callback_parameter); enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc, u32 suspend_type, - scics_sds_remote_node_context_callback cb_fn, - void *cb_p); + u32 suspension_code); enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p); enum sci_status sci_remote_node_context_start_task(struct sci_remote_node_context *sci_rnc, - struct isci_request *ireq); + struct isci_request *ireq, + scics_sds_remote_node_context_callback cb_fn, + void *cb_p); enum sci_status sci_remote_node_context_start_io(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq); +int sci_remote_node_context_is_safe_to_abort( + struct sci_remote_node_context *sci_rnc); +static inline bool sci_remote_node_context_is_being_destroyed( + struct sci_remote_node_context *sci_rnc) +{ + return (sci_rnc->destination_state == RNC_DEST_FINAL) + || ((sci_rnc->sm.current_state_id == SCI_RNC_INITIAL) + && (sci_rnc->destination_state == RNC_DEST_UNSPECIFIED)); +} #endif /* _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ */ |