diff options
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_verbs.h')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_verbs.h | 145 |
1 files changed, 82 insertions, 63 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h index 0c19ef0c4123..487606024659 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.h +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -367,9 +367,10 @@ struct qib_rwq { struct qib_rq { struct qib_rwq *wq; - spinlock_t lock; /* protect changes in this struct */ u32 size; /* size of RWQE array */ u8 max_sge; + spinlock_t lock /* protect changes in this struct */ + ____cacheline_aligned_in_smp; }; struct qib_srq { @@ -412,31 +413,75 @@ struct qib_ack_entry { */ struct qib_qp { struct ib_qp ibqp; - struct qib_qp *next; /* link list for QPN hash table */ - struct qib_qp *timer_next; /* link list for qib_ib_timer() */ - struct list_head iowait; /* link for wait PIO buf */ - struct list_head rspwait; /* link for waititing to respond */ + /* read mostly fields above and below */ struct ib_ah_attr remote_ah_attr; struct ib_ah_attr alt_ah_attr; - struct qib_ib_header s_hdr; /* next packet header to send */ - atomic_t refcount; - wait_queue_head_t wait; - wait_queue_head_t wait_dma; - struct timer_list s_timer; - struct work_struct s_work; + struct qib_qp *next; /* link list for QPN hash table */ + struct qib_swqe *s_wq; /* send work queue */ struct qib_mmap_info *ip; + struct qib_ib_header *s_hdr; /* next packet header to send */ + unsigned long timeout_jiffies; /* computed from timeout */ + + enum ib_mtu path_mtu; + u32 remote_qpn; + u32 pmtu; /* decoded from path_mtu */ + u32 qkey; /* QKEY for this QP (for UD or RD) */ + u32 s_size; /* send work queue size */ + u32 s_rnr_timeout; /* number of milliseconds for RNR timeout */ + + u8 state; /* QP state */ + u8 qp_access_flags; + u8 alt_timeout; /* Alternate path timeout for this QP */ + u8 timeout; /* Timeout for this QP */ + u8 s_srate; + u8 s_mig_state; + u8 port_num; + u8 s_pkey_index; /* PKEY index to use */ + u8 s_alt_pkey_index; /* Alternate path PKEY index to use */ + u8 r_max_rd_atomic; /* max number of RDMA read/atomic to receive */ + u8 s_max_rd_atomic; /* max number of RDMA read/atomic to send */ + u8 s_retry_cnt; /* number of times to retry */ + u8 s_rnr_retry_cnt; + u8 r_min_rnr_timer; /* retry timeout value for RNR NAKs */ + u8 s_max_sge; /* size of s_wq->sg_list */ + u8 s_draining; + + /* start of read/write fields */ + + atomic_t refcount ____cacheline_aligned_in_smp; + wait_queue_head_t wait; + + + struct qib_ack_entry s_ack_queue[QIB_MAX_RDMA_ATOMIC + 1] + ____cacheline_aligned_in_smp; + struct qib_sge_state s_rdma_read_sge; + + spinlock_t r_lock ____cacheline_aligned_in_smp; /* used for APM */ + unsigned long r_aflags; + u64 r_wr_id; /* ID for current receive WQE */ + u32 r_ack_psn; /* PSN for next ACK or atomic ACK */ + u32 r_len; /* total length of r_sge */ + u32 r_rcv_len; /* receive data len processed */ + u32 r_psn; /* expected rcv packet sequence number */ + u32 r_msn; /* message sequence number */ + + u8 r_state; /* opcode of last packet received */ + u8 r_flags; + u8 r_head_ack_queue; /* index into s_ack_queue[] */ + + struct list_head rspwait; /* link for waititing to respond */ + + struct qib_sge_state r_sge; /* current receive data */ + struct qib_rq r_rq; /* receive work queue */ + + spinlock_t s_lock ____cacheline_aligned_in_smp; struct qib_sge_state *s_cur_sge; + u32 s_flags; struct qib_verbs_txreq *s_tx; - struct qib_mregion *s_rdma_mr; + struct qib_swqe *s_wqe; struct qib_sge_state s_sge; /* current send request data */ - struct qib_ack_entry s_ack_queue[QIB_MAX_RDMA_ATOMIC + 1]; - struct qib_sge_state s_ack_rdma_sge; - struct qib_sge_state s_rdma_read_sge; - struct qib_sge_state r_sge; /* current receive data */ - spinlock_t r_lock; /* used for APM */ - spinlock_t s_lock; + struct qib_mregion *s_rdma_mr; atomic_t s_dma_busy; - u32 s_flags; u32 s_cur_size; /* size of send packet in bytes */ u32 s_len; /* total length of s_sge */ u32 s_rdma_read_len; /* total length of s_rdma_read_sge */ @@ -447,60 +492,34 @@ struct qib_qp { u32 s_psn; /* current packet sequence number */ u32 s_ack_rdma_psn; /* PSN for sending RDMA read responses */ u32 s_ack_psn; /* PSN for acking sends and RDMA writes */ - u32 s_rnr_timeout; /* number of milliseconds for RNR timeout */ - u32 r_ack_psn; /* PSN for next ACK or atomic ACK */ - u64 r_wr_id; /* ID for current receive WQE */ - unsigned long r_aflags; - u32 r_len; /* total length of r_sge */ - u32 r_rcv_len; /* receive data len processed */ - u32 r_psn; /* expected rcv packet sequence number */ - u32 r_msn; /* message sequence number */ + u32 s_head; /* new entries added here */ + u32 s_tail; /* next entry to process */ + u32 s_cur; /* current work queue entry */ + u32 s_acked; /* last un-ACK'ed entry */ + u32 s_last; /* last completed entry */ + u32 s_ssn; /* SSN of tail entry */ + u32 s_lsn; /* limit sequence number (credit) */ u16 s_hdrwords; /* size of s_hdr in 32 bit words */ u16 s_rdma_ack_cnt; - u8 state; /* QP state */ u8 s_state; /* opcode of last packet sent */ u8 s_ack_state; /* opcode of packet to ACK */ u8 s_nak_state; /* non-zero if NAK is pending */ - u8 r_state; /* opcode of last packet received */ u8 r_nak_state; /* non-zero if NAK is pending */ - u8 r_min_rnr_timer; /* retry timeout value for RNR NAKs */ - u8 r_flags; - u8 r_max_rd_atomic; /* max number of RDMA read/atomic to receive */ - u8 r_head_ack_queue; /* index into s_ack_queue[] */ - u8 qp_access_flags; - u8 s_max_sge; /* size of s_wq->sg_list */ - u8 s_retry_cnt; /* number of times to retry */ - u8 s_rnr_retry_cnt; u8 s_retry; /* requester retry counter */ u8 s_rnr_retry; /* requester RNR retry counter */ - u8 s_pkey_index; /* PKEY index to use */ - u8 s_alt_pkey_index; /* Alternate path PKEY index to use */ - u8 s_max_rd_atomic; /* max number of RDMA read/atomic to send */ u8 s_num_rd_atomic; /* number of RDMA read/atomic pending */ u8 s_tail_ack_queue; /* index into s_ack_queue[] */ - u8 s_srate; - u8 s_draining; - u8 s_mig_state; - u8 timeout; /* Timeout for this QP */ - u8 alt_timeout; /* Alternate path timeout for this QP */ - u8 port_num; - enum ib_mtu path_mtu; - u32 pmtu; /* decoded from path_mtu */ - u32 remote_qpn; - u32 qkey; /* QKEY for this QP (for UD or RD) */ - u32 s_size; /* send work queue size */ - u32 s_head; /* new entries added here */ - u32 s_tail; /* next entry to process */ - u32 s_cur; /* current work queue entry */ - u32 s_acked; /* last un-ACK'ed entry */ - u32 s_last; /* last completed entry */ - u32 s_ssn; /* SSN of tail entry */ - u32 s_lsn; /* limit sequence number (credit) */ - unsigned long timeout_jiffies; /* computed from timeout */ - struct qib_swqe *s_wq; /* send work queue */ - struct qib_swqe *s_wqe; - struct qib_rq r_rq; /* receive work queue */ - struct qib_sge r_sg_list[0]; /* verified SGEs */ + + struct qib_sge_state s_ack_rdma_sge; + struct timer_list s_timer; + struct list_head iowait; /* link for wait PIO buf */ + + struct work_struct s_work; + + wait_queue_head_t wait_dma; + + struct qib_sge r_sg_list[0] /* verified SGEs */ + ____cacheline_aligned_in_smp; }; /* |