| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mike Marciniszyn | 1073 | 59.94% | 16 | 19.28% |
| Kaike Wan | 352 | 19.66% | 23 | 27.71% |
| Dennis Dalessandro | 176 | 9.83% | 13 | 15.66% |
| Don Hiatt | 112 | 6.26% | 12 | 14.46% |
| Sebastian Sanchez | 19 | 1.06% | 3 | 3.61% |
| Venkata Sandeep Dhanalakota | 12 | 0.67% | 2 | 2.41% |
| Harish Chegondi | 10 | 0.56% | 2 | 2.41% |
| Mitko Haralanov | 8 | 0.45% | 2 | 2.41% |
| Jubin John | 6 | 0.34% | 1 | 1.20% |
| Dasaratharaman Chandramouli | 6 | 0.34% | 3 | 3.61% |
| Ira Weiny | 4 | 0.22% | 1 | 1.20% |
| Michael J. Ruhl | 4 | 0.22% | 1 | 1.20% |
| Leon Romanovsky | 2 | 0.11% | 1 | 1.20% |
| caihuoqing | 2 | 0.11% | 1 | 1.20% |
| Mark Bloch | 2 | 0.11% | 1 | 1.20% |
| Pankaj Bharadiya | 2 | 0.11% | 1 | 1.20% |
| Total | 1790 | 83 |
/* 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 16 /* * Increment this value if any changes that break userspace ABI * compatibility are made. */ #define HFI1_UVERBS_ABI_VERSION 2 /* IB Performance Manager status values */ #define IB_PMA_SAMPLE_STATUS_DONE 0x00 #define IB_PMA_SAMPLE_STATUS_STARTED 0x01 #define IB_PMA_SAMPLE_STATUS_RUNNING 0x02 /* Mandatory IB performance counter select values. */ #define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001) #define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002) #define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003) #define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004) #define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005) #define HFI1_VENDOR_IPG cpu_to_be16(0xFFA0) #define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL) #define OPA_BTH_MIG_REQ BIT(31) #define RC_OP(x) IB_OPCODE_RC_##x #define UC_OP(x) IB_OPCODE_UC_##x /* flags passed by hfi1_ib_rcv() */ enum { HFI1_HAS_GRH = (1 << 0), }; #define LRH_16B_BYTES (sizeof_field(struct hfi1_16b_header, lrh)) #define LRH_16B_DWORDS (LRH_16B_BYTES / sizeof(u32)) #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 */ struct opa_16b_mgmt { __be32 dest_qpn; __be32 src_qpn; }; struct hfi1_16b_header { u32 lrh[4]; union { struct { struct ib_grh grh; struct ib_other_headers oth; } l; struct ib_other_headers oth; struct opa_16b_mgmt mgmt; } u; } __packed; struct hfi1_opa_header { union { struct ib_header ibh; /* 9B header */ struct hfi1_16b_header opah; /* 16B header */ }; u8 hdr_type; /* 9B or 16B */ } __packed; struct hfi1_ahg_info { u32 ahgdesc[2]; u16 tx_flags; u8 ahgcount; u8 ahgidx; }; struct hfi1_sdma_header { __le64 pbc; struct hfi1_opa_header hdr; } __packed; /* * hfi1 specific data structures that will be hidden from rvt after the queue * pair is made common */ struct hfi1_qp_priv { struct hfi1_ahg_info *s_ahg; /* ahg info for next header */ 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; }; /* * This structure is used to hold commonly lookedup and computed values during * the send engine progress. */ struct iowait_work; struct hfi1_pkt_state { struct hfi1_ibdev *dev; struct hfi1_ibport *ibp; struct hfi1_pportdata *ppd; struct verbs_txreq *s_txreq; struct iowait_work *wait; unsigned long flags; unsigned long timeout; unsigned long timeout_int; int cpu; u8 opcode; bool in_thread; bool pkts_sent; }; #define HFI1_PSN_CREDIT 16 struct hfi1_opcode_stats { u64 n_packets; /* number of packets */ u64 n_bytes; /* total number of bytes */ }; struct hfi1_opcode_stats_perctx { struct hfi1_opcode_stats stats[256]; }; static inline void inc_opstats( u32 tlen, struct hfi1_opcode_stats *stats) { #ifdef CONFIG_DEBUG_FS stats->n_bytes += tlen; stats->n_packets++; #endif } struct hfi1_ibport { struct rvt_qp __rcu *qp[2]; struct rvt_ibport rvp; /* the first 16 entries are sl_to_vl for !OPA */ u8 sl_to_sc[32]; u8 sc_to_sl[32]; }; struct hfi1_ibdev { struct rvt_dev_info rdi; /* Must be first */ /* QP numbers are shared by all IB ports */ /* protect txwait list */ seqlock_t txwait_lock ____cacheline_aligned_in_smp; struct list_head txwait; /* list for wait verbs_txreq */ struct list_head memwait; /* list for wait kernel memory */ 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; u64 n_piowait; u64 n_piodrain; struct timer_list mem_timer; #ifdef CONFIG_DEBUG_FS /* per HFI debugfs */ struct dentry *hfi1_ibdev_dbg; /* per HFI symlinks to above */ struct dentry *hfi1_ibdev_link; #ifdef CONFIG_FAULT_INJECTION struct fault *fault; #endif #endif }; static inline struct hfi1_ibdev *to_idev(struct ib_device *ibdev) { struct rvt_dev_info *rdi; rdi = container_of(ibdev, struct rvt_dev_info, ibdev); return container_of(rdi, struct hfi1_ibdev, rdi); } static inline struct rvt_qp *iowait_to_qp(struct iowait *s_iowait) { struct hfi1_qp_priv *priv; priv = container_of(s_iowait, struct hfi1_qp_priv, s_iowait); return priv->owner; } /* * 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 0x7FFFFFFF #define PSN_SHIFT 1 #define PSN_MODIFY_MASK 0xFFFFFF /* * Compare two PSNs * Returns an integer <, ==, or > than zero. */ static inline int cmp_psn(u32 a, u32 b) { return (((int)a) - ((int)b)) << PSN_SHIFT; } /* * Return masked PSN */ static inline u32 mask_psn(u32 a) { return a & PSN_MASK; } /* * Return delta between two PSNs */ 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); 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) { 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[]; 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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