/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright(c) 2015 - 2018 Intel Corporation. */ #ifndef HFI1_VERBS_H #define HFI1_VERBS_H #include <linux/types.h> #include <linux/seqlock.h> #include <linux/kernel.h> #include <linux/interrupt.h> #include <linux/kref.h> #include <linux/workqueue.h> #include <linux/kthread.h> #include <linux/completion.h> #include <linux/slab.h> #include <rdma/ib_pack.h> #include <rdma/ib_user_verbs.h> #include <rdma/ib_mad.h> #include <rdma/ib_hdrs.h> #include <rdma/rdma_vt.h> #include <rdma/rdmavt_qp.h> #include <rdma/rdmavt_cq.h> struct hfi1_ctxtdata; struct hfi1_pportdata; struct hfi1_devdata; struct hfi1_packet; #include "iowait.h" #include "tid_rdma.h" #include "opfn.h" #define HFI1_MAX_RDMA_ATOMIC … /* * Increment this value if any changes that break userspace ABI * compatibility are made. */ #define HFI1_UVERBS_ABI_VERSION … /* IB Performance Manager status values */ #define IB_PMA_SAMPLE_STATUS_DONE … #define IB_PMA_SAMPLE_STATUS_STARTED … #define IB_PMA_SAMPLE_STATUS_RUNNING … /* Mandatory IB performance counter select values. */ #define IB_PMA_PORT_XMIT_DATA … #define IB_PMA_PORT_RCV_DATA … #define IB_PMA_PORT_XMIT_PKTS … #define IB_PMA_PORT_RCV_PKTS … #define IB_PMA_PORT_XMIT_WAIT … #define HFI1_VENDOR_IPG … #define IB_DEFAULT_GID_PREFIX … #define OPA_BTH_MIG_REQ … #define RC_OP(x) … #define UC_OP(x) … /* flags passed by hfi1_ib_rcv() */ enum { … }; #define LRH_16B_BYTES … #define LRH_16B_DWORDS … #define LRH_9B_BYTES … #define LRH_9B_DWORDS … /* 24Bits for qpn, upper 8Bits reserved */ struct opa_16b_mgmt { … }; struct hfi1_16b_header { … } __packed; struct hfi1_opa_header { … } __packed; struct hfi1_ahg_info { … }; struct hfi1_sdma_header { … } __packed; /* * hfi1 specific data structures that will be hidden from rvt after the queue * pair is made common */ struct hfi1_qp_priv { … }; #define HFI1_QP_WQE_INVALID … struct hfi1_swqe_priv { … }; struct hfi1_ack_priv { … }; /* * This structure is used to hold commonly lookedup and computed values during * the send engine progress. */ struct iowait_work; struct hfi1_pkt_state { … }; #define HFI1_PSN_CREDIT … struct hfi1_opcode_stats { … }; struct hfi1_opcode_stats_perctx { … }; static inline void inc_opstats( u32 tlen, struct hfi1_opcode_stats *stats) { … } struct hfi1_ibport { … }; struct hfi1_ibdev { … }; static inline struct hfi1_ibdev *to_idev(struct ib_device *ibdev) { … } static inline struct rvt_qp *iowait_to_qp(struct iowait *s_iowait) { … } /* * This must be called with s_lock held. */ 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, 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, u32 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, 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 * 1) comparing two PSNs * 2) returning the PSN with any upper bits masked * 3) returning the difference between to PSNs * * The number of significant bits in the PSN must * necessarily be at least one bit less than * the container holding the PSN. */ #define PSN_MASK … #define PSN_SHIFT … #define PSN_MODIFY_MASK … /* * Compare two PSNs * Returns an integer <, ==, or > than zero. */ static inline int cmp_psn(u32 a, u32 b) { … } /* * Return masked PSN */ static inline u32 mask_psn(u32 a) { … } /* * Return delta between two PSNs */ static inline u32 delta_psn(u32 a, u32 b) { … } static inline struct tid_rdma_request *wqe_to_tid_req(struct rvt_swqe *wqe) { … } static inline struct tid_rdma_request *ack_to_tid_req(struct rvt_ack_entry *e) { … } /* * 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) { … } static inline u32 full_flow_psn(struct tid_rdma_flow *flow, u32 psn) { … } struct verbs_txreq; void hfi1_put_txreq(struct verbs_txreq *tx); int hfi1_verbs_send(struct rvt_qp *qp, struct hfi1_pkt_state *ps); void hfi1_cnp_rcv(struct hfi1_packet *packet); void hfi1_uc_rcv(struct hfi1_packet *packet); void hfi1_rc_rcv(struct hfi1_packet *packet); void hfi1_rc_hdrerr( struct hfi1_ctxtdata *rcd, struct hfi1_packet *packet, struct rvt_qp *qp); 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); int hfi1_lookup_pkey_idx(struct hfi1_ibport *ibp, u16 pkey); void hfi1_migrate_qp(struct rvt_qp *qp); int hfi1_check_modify_qp(struct rvt_qp *qp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata); void hfi1_modify_qp(struct rvt_qp *qp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata); 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); 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 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); void hfi1_do_send(struct rvt_qp *qp, bool in_thread); void hfi1_send_rc_ack(struct hfi1_packet *packet, bool is_fecn); int hfi1_make_rc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps); int hfi1_make_uc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps); int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps); 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); unsigned hfi1_get_npkeys(struct hfi1_devdata *); int hfi1_verbs_send_dma(struct rvt_qp *qp, struct hfi1_pkt_state *ps, u64 pbc); int hfi1_verbs_send_pio(struct rvt_qp *qp, struct hfi1_pkt_state *ps, u64 pbc); static inline bool opa_bth_is_migration(struct ib_other_headers *ohdr) { … } 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) { … } extern const enum ib_wc_opcode ib_hfi1_wc_opcode[]; extern const u8 hdr_len_by_opcode[]; extern const int ib_rvt_state_ops[]; extern __be64 ib_hfi1_sys_image_guid; /* in network order */ extern unsigned int hfi1_max_cqes; extern unsigned int hfi1_max_cqs; extern unsigned int hfi1_max_qp_wrs; extern unsigned int hfi1_max_qps; extern unsigned int hfi1_max_sges; extern unsigned int hfi1_max_mcast_grps; extern unsigned int hfi1_max_mcast_qp_attached; extern unsigned int hfi1_max_srqs; extern unsigned int hfi1_max_srq_sges; extern unsigned int hfi1_max_srq_wrs; extern unsigned short piothreshold; extern const u32 ib_hfi1_rnr_table[]; #endif /* HFI1_VERBS_H */
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