diff options
Diffstat (limited to 'drivers/infiniband/core/mad_priv.h')
| -rw-r--r-- | drivers/infiniband/core/mad_priv.h | 87 |
1 files changed, 78 insertions, 9 deletions
diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h index 216509036aa8..f444357d33f4 100644 --- a/drivers/infiniband/core/mad_priv.h +++ b/drivers/infiniband/core/mad_priv.h @@ -73,19 +73,19 @@ struct ib_mad_private_header { struct ib_mad_recv_wc recv_wc; struct ib_wc wc; u64 mapping; -} __attribute__ ((packed)); +} __packed; struct ib_mad_private { struct ib_mad_private_header header; size_t mad_size; struct ib_grh grh; - u8 mad[0]; -} __attribute__ ((packed)); + u8 mad[]; +} __packed; struct ib_rmpp_segment { struct list_head list; u32 num; - u8 data[0]; + u8 data[]; }; struct ib_mad_agent_private { @@ -95,15 +95,18 @@ struct ib_mad_agent_private { spinlock_t lock; struct list_head send_list; + unsigned int sol_fc_send_count; struct list_head wait_list; - struct list_head done_list; + unsigned int sol_fc_wait_count; struct delayed_work timed_work; unsigned long timeout; struct list_head local_list; struct work_struct local_work; struct list_head rmpp_list; + unsigned int sol_fc_max; + struct list_head backlog_list; - atomic_t refcount; + refcount_t refcount; union { struct completion comp; struct rcu_head rcu; @@ -115,10 +118,35 @@ struct ib_mad_snoop_private { struct ib_mad_qp_info *qp_info; int snoop_index; int mad_snoop_flags; - atomic_t refcount; struct completion comp; }; +enum ib_mad_state { + /* MAD is in the making and is not yet in any list */ + IB_MAD_STATE_INIT, + /* MAD is in backlog list */ + IB_MAD_STATE_QUEUED, + /* + * MAD was sent to the QP and is waiting for completion + * notification in send list. + */ + IB_MAD_STATE_SEND_START, + /* + * MAD send completed successfully, waiting for a response + * in wait list. + */ + IB_MAD_STATE_WAIT_RESP, + /* + * Response came early, before send completion notification, + * in send list. + */ + IB_MAD_STATE_EARLY_RESP, + /* MAD was canceled while in wait or send list */ + IB_MAD_STATE_CANCELED, + /* MAD processing completed, MAD in no list */ + IB_MAD_STATE_DONE +}; + struct ib_mad_send_wr_private { struct ib_mad_list_head mad_list; struct list_head agent_list; @@ -133,8 +161,6 @@ struct ib_mad_send_wr_private { int max_retries; int retries_left; int retry; - int refcount; - enum ib_wc_status status; /* RMPP control */ struct list_head rmpp_list; @@ -144,8 +170,48 @@ struct ib_mad_send_wr_private { int seg_num; int newwin; int pad; + + enum ib_mad_state state; + + /* Solicited MAD flow control */ + bool is_solicited_fc; }; +static inline void expect_mad_state(struct ib_mad_send_wr_private *mad_send_wr, + enum ib_mad_state expected_state) +{ + if (IS_ENABLED(CONFIG_LOCKDEP)) + WARN_ON(mad_send_wr->state != expected_state); +} + +static inline void expect_mad_state2(struct ib_mad_send_wr_private *mad_send_wr, + enum ib_mad_state expected_state1, + enum ib_mad_state expected_state2) +{ + if (IS_ENABLED(CONFIG_LOCKDEP)) + WARN_ON(mad_send_wr->state != expected_state1 && + mad_send_wr->state != expected_state2); +} + +static inline void expect_mad_state3(struct ib_mad_send_wr_private *mad_send_wr, + enum ib_mad_state expected_state1, + enum ib_mad_state expected_state2, + enum ib_mad_state expected_state3) +{ + if (IS_ENABLED(CONFIG_LOCKDEP)) + WARN_ON(mad_send_wr->state != expected_state1 && + mad_send_wr->state != expected_state2 && + mad_send_wr->state != expected_state3); +} + +static inline void +not_expect_mad_state(struct ib_mad_send_wr_private *mad_send_wr, + enum ib_mad_state wrong_state) +{ + if (IS_ENABLED(CONFIG_LOCKDEP)) + WARN_ON(mad_send_wr->state == wrong_state); +} + struct ib_mad_local_private { struct list_head completion_list; struct ib_mad_private *mad_priv; @@ -223,4 +289,7 @@ void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr); void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr, unsigned long timeout_ms); +void change_mad_state(struct ib_mad_send_wr_private *mad_send_wr, + enum ib_mad_state new_state); + #endif /* __IB_MAD_PRIV_H__ */ |