diff options
Diffstat (limited to 'drivers/scsi/isci/remote_node_context.h')
-rw-r--r-- | drivers/scsi/isci/remote_node_context.h | 97 |
1 files changed, 43 insertions, 54 deletions
diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index 41580ad12520..a241e0f4c865 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -85,61 +85,50 @@ struct sci_remote_node_context; typedef void (*scics_sds_remote_node_context_callback)(void *); /** - * This is the enumeration of the remote node context states. + * enum sci_remote_node_context_states + * @SCI_RNC_INITIAL initial state for a remote node context. On a resume + * request the remote node context will transition to the posting state. + * + * @SCI_RNC_POSTING: transition state that posts the RNi to the hardware. Once + * the RNC is posted the remote node context will be made ready. + * + * @SCI_RNC_INVALIDATING: transition state that will post an RNC invalidate to + * the hardware. Once the invalidate is complete the remote node context will + * transition to the posting state. + * + * @SCI_RNC_RESUMING: transition state that will post an RNC resume to the + * hardare. Once the event notification of resume complete is received the + * remote node context will transition to the ready state. + * + * @SCI_RNC_READY: state that the remote node context must be in to accept io + * request operations. + * + * @SCI_RNC_TX_SUSPENDED: state that the remote node context transitions to when + * it gets a TX suspend notification from the hardware. + * + * @SCI_RNC_TX_RX_SUSPENDED: state that the remote node context transitions to + * when it gets a TX RX suspend notification from the hardware. + * + * @SCI_RNC_AWAIT_SUSPENSION: wait state for the remote node context that waits + * for a suspend notification from the hardware. This state is entered when + * either there is a request to supend the remote node context or when there is + * a TC completion where the remote node will be suspended by the hardware. */ -enum scis_sds_remote_node_context_states { - /** - * This state is the initial state for a remote node context. On a resume - * request the remote node context will transition to the posting state. - */ - SCI_RNC_INITIAL, - - /** - * This is a transition state that posts the RNi to the hardware. Once the RNC - * is posted the remote node context will be made ready. - */ - SCI_RNC_POSTING, - - /** - * This is a transition state that will post an RNC invalidate to the - * hardware. Once the invalidate is complete the remote node context will - * transition to the posting state. - */ - SCI_RNC_INVALIDATING, - - /** - * This is a transition state that will post an RNC resume to the hardare. - * Once the event notification of resume complete is received the remote node - * context will transition to the ready state. - */ - SCI_RNC_RESUMING, - - /** - * This is the state that the remote node context must be in to accept io - * request operations. - */ - SCI_RNC_READY, - - /** - * This is the state that the remote node context transitions to when it gets - * a TX suspend notification from the hardware. - */ - SCI_RNC_TX_SUSPENDED, - - /** - * This is the state that the remote node context transitions to when it gets - * a TX RX suspend notification from the hardware. - */ - SCI_RNC_TX_RX_SUSPENDED, - - /** - * This state is a wait state for the remote node context that waits for a - * suspend notification from the hardware. This state is entered when either - * there is a request to supend the remote node context or when there is a TC - * completion where the remote node will be suspended by the hardware. - */ - SCI_RNC_AWAIT_SUSPENSION -}; +#define RNC_STATES {\ + C(RNC_INITIAL),\ + C(RNC_POSTING),\ + C(RNC_INVALIDATING),\ + C(RNC_RESUMING),\ + C(RNC_READY),\ + C(RNC_TX_SUSPENDED),\ + C(RNC_TX_RX_SUSPENDED),\ + C(RNC_AWAIT_SUSPENSION),\ + } +#undef C +#define C(a) SCI_##a +enum scis_sds_remote_node_context_states RNC_STATES; +#undef C +const char *rnc_state_name(enum scis_sds_remote_node_context_states state); /** * |