diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.h | 104 |
1 files changed, 103 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index 1ad0b14bdb3c..62ace0b2d17a 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -72,6 +72,7 @@ struct hfi1_packet; #include "iowait.h" #include "tid_rdma.h" +#include "opfn.h" #define HFI1_MAX_RDMA_ATOMIC 16 @@ -158,10 +159,68 @@ struct hfi1_qp_priv { struct sdma_engine *s_sde; /* current sde */ struct send_context *s_sendcontext; /* current sendcontext */ struct hfi1_ctxtdata *rcd; /* QP's receive context */ + struct page **pages; /* for TID page scan */ + u32 tid_enqueue; /* saved when tid waited */ u8 s_sc; /* SC[0..4] for next packet */ struct iowait s_iowait; + struct timer_list s_tid_timer; /* for timing tid wait */ + struct timer_list s_tid_retry_timer; /* for timing tid ack */ + struct list_head tid_wait; /* for queueing tid space */ + struct hfi1_opfn_data opfn; + struct tid_flow_state flow_state; + struct tid_rdma_qp_params tid_rdma; struct rvt_qp *owner; u8 hdr_type; /* 9B or 16B */ + struct rvt_sge_state tid_ss; /* SGE state pointer for 2nd leg */ + atomic_t n_requests; /* # of TID RDMA requests in the */ + /* queue */ + atomic_t n_tid_requests; /* # of sent TID RDMA requests */ + unsigned long tid_timer_timeout_jiffies; + unsigned long tid_retry_timeout_jiffies; + + /* variables for the TID RDMA SE state machine */ + u8 s_state; + u8 s_retry; + u8 rnr_nak_state; /* RNR NAK state */ + u8 s_nak_state; + u32 s_nak_psn; + u32 s_flags; + u32 s_tid_cur; + u32 s_tid_head; + u32 s_tid_tail; + u32 r_tid_head; /* Most recently added TID RDMA request */ + u32 r_tid_tail; /* the last completed TID RDMA request */ + u32 r_tid_ack; /* the TID RDMA request to be ACK'ed */ + u32 r_tid_alloc; /* Request for which we are allocating resources */ + u32 pending_tid_w_segs; /* Num of pending tid write segments */ + u32 pending_tid_w_resp; /* Num of pending tid write responses */ + u32 alloc_w_segs; /* Number of segments for which write */ + /* resources have been allocated for this QP */ + + /* For TID RDMA READ */ + u32 tid_r_reqs; /* Num of tid reads requested */ + u32 tid_r_comp; /* Num of tid reads completed */ + u32 pending_tid_r_segs; /* Num of pending tid read segments */ + u16 pkts_ps; /* packets per segment */ + u8 timeout_shift; /* account for number of packets per segment */ + + u32 r_next_psn_kdeth; + u32 r_next_psn_kdeth_save; + u32 s_resync_psn; + u8 sync_pt; /* Set when QP reaches sync point */ + u8 resync; +}; + +#define HFI1_QP_WQE_INVALID ((u32)-1) + +struct hfi1_swqe_priv { + struct tid_rdma_request tid_req; + struct rvt_sge_state ss; /* Used for TID RDMA READ Request */ +}; + +struct hfi1_ack_priv { + struct rvt_sge_state ss; /* used for TID WRITE RESP */ + struct tid_rdma_request tid_req; }; /* @@ -225,6 +284,7 @@ struct hfi1_ibdev { struct kmem_cache *verbs_txreq_cache; u64 n_txwait; u64 n_kmem_wait; + u64 n_tidwait; /* protect iowait lists */ seqlock_t iowait_lock ____cacheline_aligned_in_smp; @@ -312,6 +372,31 @@ static inline u32 delta_psn(u32 a, u32 b) return (((int)a - (int)b) << PSN_SHIFT) >> PSN_SHIFT; } +static inline struct tid_rdma_request *wqe_to_tid_req(struct rvt_swqe *wqe) +{ + return &((struct hfi1_swqe_priv *)wqe->priv)->tid_req; +} + +static inline struct tid_rdma_request *ack_to_tid_req(struct rvt_ack_entry *e) +{ + return &((struct hfi1_ack_priv *)e->priv)->tid_req; +} + +/* + * Look through all the active flows for a TID RDMA request and find + * the one (if it exists) that contains the specified PSN. + */ +static inline u32 __full_flow_psn(struct flow_state *state, u32 psn) +{ + return mask_psn((state->generation << HFI1_KDETH_BTH_SEQ_SHIFT) | + (psn & HFI1_KDETH_BTH_SEQ_MASK)); +} + +static inline u32 full_flow_psn(struct tid_rdma_flow *flow, u32 psn) +{ + return __full_flow_psn(&flow->flow_state, psn); +} + struct verbs_txreq; void hfi1_put_txreq(struct verbs_txreq *tx); @@ -356,9 +441,12 @@ u32 hfi1_make_grh(struct hfi1_ibport *ibp, struct ib_grh *hdr, const struct ib_global_route *grh, u32 hwords, u32 nwords); void hfi1_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr, - u32 bth0, u32 bth2, int middle, + u32 bth0, u32 bth1, u32 bth2, int middle, struct hfi1_pkt_state *ps); +bool hfi1_schedule_send_yield(struct rvt_qp *qp, struct hfi1_pkt_state *ps, + bool tid); + void _hfi1_do_send(struct work_struct *work); void hfi1_do_send_from_rvt(struct rvt_qp *qp); @@ -377,6 +465,10 @@ int hfi1_register_ib_device(struct hfi1_devdata *); void hfi1_unregister_ib_device(struct hfi1_devdata *); +void hfi1_kdeth_eager_rcv(struct hfi1_packet *packet); + +void hfi1_kdeth_expected_rcv(struct hfi1_packet *packet); + void hfi1_ib_rcv(struct hfi1_packet *packet); void hfi1_16B_rcv(struct hfi1_packet *packet); @@ -394,6 +486,16 @@ static inline bool opa_bth_is_migration(struct ib_other_headers *ohdr) return ohdr->bth[1] & cpu_to_be32(OPA_BTH_MIG_REQ); } +void hfi1_wait_kmem(struct rvt_qp *qp); + +static inline void hfi1_trdma_send_complete(struct rvt_qp *qp, + struct rvt_swqe *wqe, + enum ib_wc_status status) +{ + trdma_clean_swqe(qp, wqe); + rvt_send_complete(qp, wqe, status); +} + extern const enum ib_wc_opcode ib_hfi1_wc_opcode[]; extern const u8 hdr_len_by_opcode[]; |