/* * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * 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. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef IPATH_VERBS_H #define IPATH_VERBS_H #include #include #include #include #include #include #include #include "ipath_kernel.h" #define IPATH_MAX_RDMA_ATOMIC 4 #define QPN_MAX (1 << 24) #define QPNMAP_ENTRIES (QPN_MAX / PAGE_SIZE / BITS_PER_BYTE) /* * Increment this value if any changes that break userspace ABI * compatibility are made. */ #define IPATH_UVERBS_ABI_VERSION 2 /* * Define an ib_cq_notify value that is not valid so we know when CQ * notifications are armed. */ #define IB_CQ_NONE (IB_CQ_NEXT_COMP + 1) /* AETH NAK opcode values */ #define IB_RNR_NAK 0x20 #define IB_NAK_PSN_ERROR 0x60 #define IB_NAK_INVALID_REQUEST 0x61 #define IB_NAK_REMOTE_ACCESS_ERROR 0x62 #define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63 #define IB_NAK_INVALID_RD_REQUEST 0x64 /* Flags for checking QP state (see ib_ipath_state_ops[]) */ #define IPATH_POST_SEND_OK 0x01 #define IPATH_POST_RECV_OK 0x02 #define IPATH_PROCESS_RECV_OK 0x04 #define IPATH_PROCESS_SEND_OK 0x08 /* 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 __constant_htons(0x0001) #define IB_PMA_PORT_RCV_DATA __constant_htons(0x0002) #define IB_PMA_PORT_XMIT_PKTS __constant_htons(0x0003) #define IB_PMA_PORT_RCV_PKTS __constant_htons(0x0004) #define IB_PMA_PORT_XMIT_WAIT __constant_htons(0x0005) struct ib_reth { __be64 vaddr; __be32 rkey; __be32 length; } __attribute__ ((packed)); struct ib_atomic_eth { __be32 vaddr[2]; /* unaligned so access as 2 32-bit words */ __be32 rkey; __be64 swap_data; __be64 compare_data; } __attribute__ ((packed)); struct ipath_other_headers { __be32 bth[3]; union { struct { __be32 deth[2]; __be32 imm_data; } ud; struct { struct ib_reth reth; __be32 imm_data; } rc; struct { __be32 aeth; __be32 atomic_ack_eth[2]; } at; __be32 imm_data; __be32 aeth; struct ib_atomic_eth atomic_eth; } u; } __attribute__ ((packed)); /* * Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes * long (72 w/ imm_data). Only the first 56 bytes of the IB header * will be in the eager header buffer. The remaining 12 or 16 bytes * are in the data buffer. */ struct ipath_ib_header { __be16 lrh[4]; union { struct { struct ib_grh grh; struct ipath_other_headers oth; } l; struct ipath_other_headers oth; } u; } __attribute__ ((packed)); /* * There is one struct ipath_mcast for each multicast GID. * All attached QPs are then stored as a list of * struct ipath_mcast_qp. */ struct ipath_mcast_qp { struct list_head list; struct ipath_qp *qp; }; struct ipath_mcast { struct rb_node rb_node; union ib_gid mgid; struct list_head qp_list; wait_queue_head_t wait; atomic_t refcount; int n_attached; }; /* Protection domain */ struct ipath_pd { struct ib_pd ibpd; int user; /* non-zero if created from user space */ }; /* Address Handle */ struct ipath_ah { struct ib_ah ibah; struct ib_ah_attr attr; }; /* * This structure is used by ipath_mmap() to validate an offset * when an mmap() request is made. The vm_area_struct then uses * this as its vm_private_data. */ struct ipath_mmap_info { struct list_head pending_mmaps; struct ib_ucontext *context; void *obj; __u64 offset; struct kref ref; unsigned size; }; /* * This structure is used to contain the head pointer, tail pointer, * and completion queue entries as a single memory allocation so * it can be mmap'ed into user space. */ struct ipath_cq_wc { u32 head; /* index of next entry to fill */ u32 tail; /* index of next ib_poll_cq() entry */ union { /* these are actually size ibcq.cqe + 1 */ struct ib_uverbs_wc uqueue[0]; struct ib_wc kqueue[0]; }; }; /* * The completion queue structure. */ struct ipath_cq { struct ib_cq ibcq; struct tasklet_struct comptask; spinlock_t lock; u8 notify; u8 triggered; struct ipath_cq_wc *queue; struct ipath_mmap_info *ip; }; /* * A segment is a linear region of low physical memory. * XXX Maybe we should use phys addr here and kmap()/kunmap(). * Used by the verbs layer. */ struct ipath_seg { void *vaddr; size_t length; }; /* The number of ipath_segs that fit in a page. */ #define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg)) struct ipath_segarray { struct ipath_seg segs[IPATH_SEGSZ]; }; struct ipath_mregion { struct ib_pd *pd; /* shares refcnt of ibmr.pd */ u64 user_base; /* User's address for this region */ u64 iova; /* IB start address of this region */ size_t length; u32 lkey; u32 offset; /* offset (bytes) to start of region */ int access_flags; u32 max_segs; /* number of ipath_segs in all the arrays */ u32 mapsz; /* size of the map array */ struct ipath_segarray *map[0]; /* the segments */ }; /* * These keep track of the copy progress within a memory region. * Used by the verbs layer. */ struct ipath_sge { struct ipath_mregion *mr; void *vaddr; /* kernel virtual address of segment */ u32 sge_length; /* length of the SGE */ u32 length; /* remaining length of the segment */ u16 m; /* current index: mr->map[m] */ u16 n; /* current index: mr->map[m]->segs[n] */ }; /* Memory region */ struct ipath_mr { struct ib_mr ibmr; struct ib_umem *umem; struct ipath_mregion mr; /* must be last */ }; /* * Send work request queue entry. * The size of the sg_list is determined when the QP is created and stored * in qp->s_max_sge. */ struct ipath_swqe { struct ib_send_wr wr; /* don't use wr.sg_list */ u32 psn; /* first packet sequence number */ u32 lpsn; /* last packet sequence number */ u32 ssn; /* send sequence number */ u32 length; /* total length of data in sg_list */ struct ipath_sge sg_list[0]; }; /* * Receive work request queue entry. * The size of the sg_list is determined when the QP (or SRQ) is created * and stored in qp->r_rq.max_sge (or srq->rq.max_sge). */ struct ipath_rwqe { u64 wr_id; u8 num_sge; struct ib_sge sg_list[0]; }; /* * This structure is used to contain the head pointer, tail pointer, * and receive work queue entries as a single memory allocation so * it can be mmap'ed into user space. * Note that the wq array elements are variable size so you can't * just index into the array to get the N'th element; * use get_rwqe_ptr() instead. */ struct ipath_rwq { u32 head; /* new work requests posted to the head */ u32 tail; /* receives pull requests from here. */ struct ipath_rwqe wq[0]; }; struct ipath_rq { struct ipath_rwq *wq; spinlock_t lock; u32 size; /* size of RWQE array */ u8 max_sge; }; struct ipath_srq { struct ib_srq ibsrq; struct ipath_rq rq; struct ipath_mmap_info *ip; /* send signal when number of RWQEs < limit */ u32 limit; }; struct ipath_sge_state { struct ipath_sge *sg_list; /* next SGE to be used if any */ struct ipath_sge sge; /* progress state for the current SGE */ u8 num_sge; }; /* * This structure holds the information that the send tasklet needs * to send a RDMA read response or atomic operation. */ struct ipath_ack_entry { u8 opcode; u8 sent; u32 psn; union { struct ipath_sge_state rdma_sge; u64 atomic_data; }; }; /* * Variables prefixed with s_ are for the requester (sender). * Variables prefixed with r_ are for the responder (receiver). * Variables prefixed with ack_ are for responder replies. * * Common variables are protected by both r_rq.lock and s_lock in that order * which only happens in modify_qp() or changing the QP 'state'. */ struct ipath_qp { struct ib_qp ibqp; struct ipath_qp *next; /* link list for QPN hash table */ struct ipath_qp *timer_next; /* link list for ipath_ib_timer() */ struct list_head piowait; /* link for wait PIO buf */ struct list_head timerwait; /* link for waiting for timeouts */ struct ib_ah_attr remote_ah_attr; struct ipath_ib_header s_hdr; /* next packet header to send */ atomic_t refcount; wait_queue_head_t wait; struct tasklet_struct s_task; struct ipath_mmap_info *ip; struct ipath_sge_state *s_cur_sge; struct ipath_sge_state s_sge; /* current send request data */ struct ipath_ack_entry s_ack_queue[IPATH_MAX_RDMA_ATOMIC + 1]; struct ipath_sge_state s_ack_rdma_sge; struct ipath_sge_state s_rdma_read_sge; struct ipath_sge_state r_sge; /* current receive data */ spinlock_t s_lock; unsigned long s_busy; u32 s_hdrwords; /* size of s_hdr in 32 bit words */ 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 */ u32 s_next_psn; /* PSN for next request */ u32 s_last_psn; /* last response PSN processed */ 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 */ 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 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_reuse_sge; /* for UC receive errors */ u8 r_sge_inx; /* current index into sg_list */ u8 r_wrid_valid; /* r_wrid set but CQ entry not yet made */ 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_wait_credit; /* limit number of unacked packets sent */ u8 s_pkey_index; /* 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_flags; u8 timeout; /* Timeout for this QP */ enum ib_mtu 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_last; /* last un-ACK'ed entry */ u32 s_ssn; /* SSN of tail entry */ u32 s_lsn; /* limit sequence number (credit) */ struct ipath_swqe *s_wq; /* send work queue */ struct ipath_swqe *s_wqe; struct ipath_rq r_rq; /* receive work queue */ struct ipath_sge r_sg_list[0]; /* verified SGEs */ }; /* Bit definition for s_busy. */ #define IPATH_S_BUSY 0 /* * Bit definitions for s_flags. */ #define IPATH_S_SIGNAL_REQ_WR 0x01 #define IPATH_S_FENCE_PENDING 0x02 #define IPATH_S_RDMAR_PENDING 0x04 #define IPATH_S_ACK_PENDING 0x08 #define IPATH_PSN_CREDIT 512 /* * Since struct ipath_swqe is not a fixed size, we can't simply index into * struct ipath_qp.s_wq. This function does the array index computation. */ static inline struct ipath_swqe *get_swqe_ptr(struct ipath_qp *qp, unsigned n) { return (struct ipath_swqe *)((char *)qp->s_wq + (sizeof(struct ipath_swqe) + qp->s_max_sge * sizeof(struct ipath_sge)) * n); } /* * Since struct ipath_rwqe is not a fixed size, we can't simply index into * struct ipath_rwq.wq. This function does the array index computation. */ static inline struct ipath_rwqe *get_rwqe_ptr(struct ipath_rq *rq, unsigned n) { return (struct ipath_rwqe *) ((char *) rq->wq->wq + (sizeof(struct ipath_rwqe) + rq->max_sge * sizeof(struct ib_sge)) * n); } /* * QPN-map pages start out as NULL, they get allocated upon * first use and are never deallocated. This way, * large bitmaps are not allocated unless large numbers of QPs are used. */ struct qpn_map { atomic_t n_free; void *page; }; struct ipath_qp_table { spinlock_t lock; u32 last; /* last QP number allocated */ u32 max; /* size of the hash table */ u32 nmaps; /* size of the map table */ struct ipath_qp **table; /* bit map of free numbers */ struct qpn_map map[QPNMAP_ENTRIES]; }; struct ipath_lkey_table { spinlock_t lock; u32 next; /* next unused index (speeds search) */ u32 gen; /* generation count */ u32 max; /* size of the table */ struct ipath_mregion **table; }; struct ipath_opcode_stats { u64 n_packets; /* number of packets */ u64 n_bytes; /* total number of bytes */ }; struct ipath_ibdev { struct ib_device ibdev; struct ipath_devdata *dd; struct list_head pending_mmaps; spinlock_t mmap_offset_lock; u32 mmap_offset; int ib_unit; /* This is the device number */ u16 sm_lid; /* in host order */ u8 sm_sl; u8 mkeyprot_resv_lmc; /* non-zero when timer is set */ unsigned long mkey_lease_timeout; /* The following fields are really per port. */ struct ipath_qp_table qp_table; struct ipath_lkey_table lk_table; struct list_head pending[3]; /* FIFO of QPs waiting for ACKs */ struct list_head piowait; /* list for wait PIO buf */ /* list of QPs waiting for RNR timer */ struct list_head rnrwait; spinlock_t pending_lock; __be64 sys_image_guid; /* in network order */ __be64 gid_prefix; /* in network order */ __be64 mkey; u32 n_pds_allocated; /* number of PDs allocated for device */ spinlock_t n_pds_lock; u32 n_ahs_allocated; /* number of AHs allocated for device */ spinlock_t n_ahs_lock; u32 n_cqs_allocated; /* number of CQs allocated for device */ spinlock_t n_cqs_lock; u32 n_qps_allocated; /* number of QPs allocated for device */ spinlock_t n_qps_lock; u32 n_srqs_allocated; /* number of SRQs allocated for device */ spinlock_t n_srqs_lock; u32 n_mcast_grps_allocated; /* number of mcast groups allocated */ spinlock_t n_mcast_grps_lock; u64 ipath_sword; /* total dwords sent (sample result) */ u64 ipath_rword; /* total dwords received (sample result) */ u64 ipath_spkts; /* total packets sent (sample result) */ u64 ipath_rpkts; /* total packets received (sample result) */ /* # of ticks no data sent (sample result) */ u64 ipath_xmit_wait; u64 rcv_errors; /* # of packets with SW detected rcv errs */ u64 n_unicast_xmit; /* total unicast packets sent */ u64 n_unicast_rcv; /* total unicast packets received */ u64 n_multicast_xmit; /* total multicast packets sent */ u64 n_multicast_rcv; /* total multicast packets received */ u64 z_symbol_error_counter; /* starting count for PMA */ u64 z_link_error_recovery_counter; /* starting count for PMA */ u64 z_link_downed_counter; /* starting count for PMA */ u64 z_port_rcv_errors; /* starting count for PMA */ u64 z_port_rcv_remphys_errors; /* starting count for PMA */ u64 z_port_xmit_discards; /* starting count for PMA */ u64 z_port_xmit_data; /* starting count for PMA */ u64 z_port_rcv_data; /* starting count for PMA */ u64 z_port_xmit_packets; /* starting count for PMA */ u64 z_port_rcv_packets; /* starting count for PMA */ u32 z_pkey_violations; /* starting count for PMA */ u32 z_local_link_integrity_errors; /* starting count for PMA */ u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */ u32 n_rc_resends; u32 n_rc_acks; u32 n_rc_qacks; u32 n_seq_naks; u32 n_rdma_seq; u32 n_rnr_naks; u32 n_other_naks; u32 n_timeouts; u32 n_rc_stalls; u32 n_pkt_drops; u32 n_vl15_dropped; u32 n_wqe_errs; u32 n_rdma_dup_busy; u32 n_piowait; u32 n_no_piobuf; u32 port_cap_flags; u32 pma_sample_start; u32 pma_sample_interval; __be16 pma_counter_select[5]; u16 pma_tag; u16 qkey_violations; u16 mkey_violations; u16 mkey_lease_period; u16 pending_index; /* which pending queue is active */ u8 pma_sample_status; u8 subnet_timeout; u8 link_width_enabled; u8 vl_high_limit; struct ipath_opcode_stats opstats[128]; }; struct ipath_verbs_counters { u64 symbol_error_counter; u64 link_error_recovery_counter; u64 link_downed_counter; u64 port_rcv_errors; u64 port_rcv_remphys_errors; u64 port_xmit_discards; u64 port_xmit_data; u64 port_rcv_data; u64 port_xmit_packets; u64 port_rcv_packets; u32 local_link_integrity_errors; u32 excessive_buffer_overrun_errors; }; static inline struct ipath_mr *to_imr(struct ib_mr *ibmr) { return container_of(ibmr, struct ipath_mr, ibmr); } static inline struct ipath_pd *to_ipd(struct ib_pd *ibpd) { return container_of(ibpd, struct ipath_pd, ibpd); } static inline struct ipath_ah *to_iah(struct ib_ah *ibah) { return container_of(ibah, struct ipath_ah, ibah); } static inline struct ipath_cq *to_icq(struct ib_cq *ibcq) { return container_of(ibcq, struct ipath_cq, ibcq); } static inline struct ipath_srq *to_isrq(struct ib_srq *ibsrq) { return container_of(ibsrq, struct ipath_srq, ibsrq); } static inline struct ipath_qp *to_iqp(struct ib_qp *ibqp) { return container_of(ibqp, struct ipath_qp, ibqp); } static inline struct ipath_ibdev *to_idev(struct ib_device *ibdev) { return container_of(ibdev, struct ipath_ibdev, ibdev); } int ipath_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, struct ib_wc *in_wc, struct ib_grh *in_grh, struct ib_mad *in_mad, struct ib_mad *out_mad); /* * Compare the lower 24 bits of the two values. * Returns an integer <, ==, or > than zero. */ static inline int ipath_cmp24(u32 a, u32 b) { return (((int) a) - ((int) b)) << 8; } struct ipath_mcast *ipath_mcast_find(union ib_gid *mgid); int ipath_snapshot_counters(struct ipath_devdata *dd, u64 *swords, u64 *rwords, u64 *spkts, u64 *rpkts, u64 *xmit_wait); int ipath_get_counters(struct ipath_devdata *dd, struct ipath_verbs_counters *cntrs); int ipath_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid); int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid); int ipath_mcast_tree_empty(void); __be32 ipath_compute_aeth(struct ipath_qp *qp); struct ipath_qp *ipath_lookup_qpn(struct ipath_qp_table *qpt, u32 qpn); struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, struct ib_qp_init_attr *init_attr, struct ib_udata *udata); int ipath_destroy_qp(struct ib_qp *ibqp); int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err); int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata); int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_qp_init_attr *init_attr); void ipath_free_all_qps(struct ipath_qp_table *qpt); int ipath_init_qp_table(struct ipath_ibdev *idev, int size); void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc); void ipath_get_credit(struct ipath_qp *qp, u32 aeth); int ipath_verbs_send(struct ipath_qp *qp, struct ipath_ib_header *hdr, u32 hdrwords, struct ipath_sge_state *ss, u32 len); void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int sig); void ipath_copy_sge(struct ipath_sge_state *ss, void *data, u32 length); void ipath_skip_sge(struct ipath_sge_state *ss, u32 length); void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, int has_grh, void *data, u32 tlen, struct ipath_qp *qp); void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, int has_grh, void *data, u32 tlen, struct ipath_qp *qp); void ipath_restart_rc(struct ipath_qp *qp, u32 psn, struct ib_wc *wc); int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr); void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, int has_grh, void *data, u32 tlen, struct ipath_qp *qp); int ipath_alloc_lkey(struct ipath_lkey_table *rkt, struct ipath_mregion *mr); void ipath_free_lkey(struct ipath_lkey_table *rkt, u32 lkey); int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge, struct ib_sge *sge, int acc); int ipath_rkey_ok(struct ipath_qp *qp, struct ipath_sge_state *ss, u32 len, u64 vaddr, u32 rkey, int acc); int ipath_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr); struct ib_srq *ipath_create_srq(struct ib_pd *ibpd, struct ib_srq_init_attr *srq_init_attr, struct ib_udata *udata); int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); int ipath_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr); int ipath_destroy_srq(struct ib_srq *ibsrq); void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int sig); int ipath_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry); struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, int comp_vector, struct ib_ucontext *context, struct ib_udata *udata); int ipath_destroy_cq(struct ib_cq *ibcq); int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags); int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata); struct ib_mr *ipath_get_dma_mr(struct ib_pd *pd, int acc); struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd, struct ib_phys_buf *buffer_list, int num_phys_buf, int acc, u64 *iova_start); struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt_addr, int mr_access_flags, struct ib_udata *udata); int ipath_dereg_mr(struct ib_mr *ibmr); struct ib_fmr *ipath_alloc_fmr(struct ib_pd *pd, int mr_access_flags, struct ib_fmr_attr *fmr_attr); int ipath_map_phys_fmr(struct ib_fmr *ibfmr, u64 * page_list, int list_len, u64 iova); int ipath_unmap_fmr(struct list_head *fmr_list); int ipath_dealloc_fmr(struct ib_fmr *ibfmr); void ipath_release_mmap_info(struct kref *ref); struct ipath_mmap_info *ipath_create_mmap_info(struct ipath_ibdev *dev, u32 size, struct ib_ucontext *context, void *obj); void ipath_update_mmap_info(struct ipath_ibdev *dev, struct ipath_mmap_info *ip, u32 size, void *obj); int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); void ipath_insert_rnr_queue(struct ipath_qp *qp); int ipath_init_sge(struct ipath_qp *qp, struct ipath_rwqe *wqe, u32 *lengthp, struct ipath_sge_state *ss); int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only); u32 ipath_make_grh(struct ipath_ibdev *dev, struct ib_grh *hdr, struct ib_global_route *grh, u32 hwords, u32 nwords); void ipath_make_ruc_header(struct ipath_ibdev *dev, struct ipath_qp *qp, struct ipath_other_headers *ohdr, u32 bth0, u32 bth2); void ipath_do_send(unsigned long data); void ipath_send_complete(struct ipath_qp *qp, struct ipath_swqe *wqe, enum ib_wc_status status); int ipath_make_rc_req(struct ipath_qp *qp); int ipath_make_uc_req(struct ipath_qp *qp); int ipath_make_ud_req(struct ipath_qp *qp); int ipath_register_ib_device(struct ipath_devdata *); void ipath_unregister_ib_device(struct ipath_ibdev *); void ipath_ib_rcv(struct ipath_ibdev *, void *, void *, u32); int ipath_ib_piobufavail(struct ipath_ibdev *); unsigned ipath_get_npkeys(struct ipath_devdata *); u32 ipath_get_cr_errpkey(struct ipath_devdata *); unsigned ipath_get_pkey(struct ipath_devdata *, unsigned); extern const enum ib_wc_opcode ib_ipath_wc_opcode[]; extern const u8 ipath_cvt_physportstate[]; extern const int ib_ipath_state_ops[]; extern unsigned int ib_ipath_lkey_table_size; extern unsigned int ib_ipath_max_cqes; extern unsigned int ib_ipath_max_cqs; extern unsigned int ib_ipath_max_qp_wrs; extern unsigned int ib_ipath_max_qps; extern unsigned int ib_ipath_max_sges; extern unsigned int ib_ipath_max_mcast_grps; extern unsigned int ib_ipath_max_mcast_qp_attached; extern unsigned int ib_ipath_max_srqs; extern unsigned int ib_ipath_max_srq_sges; extern unsigned int ib_ipath_max_srq_wrs; extern const u32 ib_ipath_rnr_table[]; extern struct ib_dma_mapping_ops ipath_dma_mapping_ops; #endif /* IPATH_VERBS_H */