diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.h | 166 |
1 files changed, 112 insertions, 54 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index 1ad0b14bdb3c..070e4f0babe8 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -1,48 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright(c) 2015 - 2018 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * */ #ifndef HFI1_VERBS_H @@ -72,6 +30,7 @@ struct hfi1_packet; #include "iowait.h" #include "tid_rdma.h" +#include "opfn.h" #define HFI1_MAX_RDMA_ATOMIC 16 @@ -106,9 +65,9 @@ enum { HFI1_HAS_GRH = (1 << 0), }; -#define LRH_16B_BYTES (FIELD_SIZEOF(struct hfi1_16b_header, lrh)) +#define LRH_16B_BYTES (sizeof_field(struct hfi1_16b_header, lrh)) #define LRH_16B_DWORDS (LRH_16B_BYTES / sizeof(u32)) -#define LRH_9B_BYTES (FIELD_SIZEOF(struct ib_header, lrh)) +#define LRH_9B_BYTES (sizeof_field(struct ib_header, lrh)) #define LRH_9B_DWORDS (LRH_9B_BYTES / sizeof(u32)) /* 24Bits for qpn, upper 8Bits reserved */ @@ -158,10 +117,69 @@ 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; + u16 s_running_pkt_size; 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 +243,7 @@ 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; @@ -264,14 +283,13 @@ static inline struct rvt_qp *iowait_to_qp(struct iowait *s_iowait) */ void hfi1_bad_pkey(struct hfi1_ibport *ibp, u32 key, u32 sl, u32 qp1, u32 qp2, u32 lid1, u32 lid2); -void hfi1_cap_mask_chg(struct rvt_dev_info *rdi, u8 port_num); +void hfi1_cap_mask_chg(struct rvt_dev_info *rdi, u32 port_num); void hfi1_sys_guid_chg(struct hfi1_ibport *ibp); void hfi1_node_desc_chg(struct hfi1_ibport *ibp); -int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, +int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u32 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, - const struct ib_mad_hdr *in_mad, size_t in_mad_size, - struct ib_mad_hdr *out_mad, size_t *out_mad_size, - u16 *out_mad_pkey_index); + const struct ib_mad *in_mad, struct ib_mad *out_mad, + size_t *out_mad_size, u16 *out_mad_pkey_index); /* * The PSN_MASK and PSN_SHIFT allow for @@ -312,6 +330,31 @@ 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); @@ -330,6 +373,7 @@ void hfi1_rc_hdrerr( u8 ah_to_sc(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr); +void hfi1_rc_verbs_aborted(struct rvt_qp *qp, struct hfi1_opa_header *opah); void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah); void hfi1_ud_rcv(struct hfi1_packet *packet); @@ -347,18 +391,18 @@ void hfi1_restart_rc(struct rvt_qp *qp, u32 psn, int wait); int hfi1_setup_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe, bool *call_send); -extern const u32 rc_only_opcode; -extern const u32 uc_only_opcode; - int hfi1_ruc_check_hdr(struct hfi1_ibport *ibp, struct hfi1_packet *packet); 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 +421,10 @@ 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 +442,16 @@ 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[]; |