| /* |
| * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. |
| * Copyright (c) 2006 - 2012 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 QIB_VERBS_H |
| #define QIB_VERBS_H |
| |
| #include <linux/types.h> |
| #include <linux/spinlock.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 <rdma/ib_pack.h> |
| #include <rdma/ib_user_verbs.h> |
| #include <rdma/ib_hdrs.h> |
| #include <rdma/rdma_vt.h> |
| #include <rdma/rdmavt_cq.h> |
| |
| struct qib_ctxtdata; |
| struct qib_pportdata; |
| struct qib_devdata; |
| struct qib_verbs_txreq; |
| |
| #define QIB_MAX_RDMA_ATOMIC 16 |
| #define QIB_GUIDS_PER_PORT 5 |
| #define QIB_PSN_SHIFT 8 |
| |
| /* |
| * Increment this value if any changes that break userspace ABI |
| * compatibility are made. |
| */ |
| #define QIB_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 QIB_VENDOR_IPG cpu_to_be16(0xFFA0) |
| |
| /* XXX Should be defined in ib_verbs.h enum ib_port_cap_flags */ |
| #define IB_PORT_OTHER_LOCAL_CHANGES_SUP (1 << 26) |
| |
| #define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL) |
| |
| /* Values for set/get portinfo VLCap OperationalVLs */ |
| #define IB_VL_VL0 1 |
| #define IB_VL_VL0_1 2 |
| #define IB_VL_VL0_3 3 |
| #define IB_VL_VL0_7 4 |
| #define IB_VL_VL0_14 5 |
| |
| static inline int qib_num_vls(int vls) |
| { |
| switch (vls) { |
| default: |
| case IB_VL_VL0: |
| return 1; |
| case IB_VL_VL0_1: |
| return 2; |
| case IB_VL_VL0_3: |
| return 4; |
| case IB_VL_VL0_7: |
| return 8; |
| case IB_VL_VL0_14: |
| return 15; |
| } |
| } |
| |
| struct qib_pio_header { |
| __le32 pbc[2]; |
| struct ib_header hdr; |
| } __packed; |
| |
| /* |
| * qib specific data structure that will be hidden from rvt after the queue pair |
| * is made common. |
| */ |
| struct qib_qp_priv { |
| struct ib_header *s_hdr; /* next packet header to send */ |
| struct list_head iowait; /* link for wait PIO buf */ |
| atomic_t s_dma_busy; |
| struct qib_verbs_txreq *s_tx; |
| struct work_struct s_work; |
| wait_queue_head_t wait_dma; |
| struct rvt_qp *owner; |
| }; |
| |
| #define QIB_PSN_CREDIT 16 |
| |
| struct qib_opcode_stats { |
| u64 n_packets; /* number of packets */ |
| u64 n_bytes; /* total number of bytes */ |
| }; |
| |
| struct qib_opcode_stats_perctx { |
| struct qib_opcode_stats stats[128]; |
| }; |
| |
| struct qib_pma_counters { |
| 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 */ |
| }; |
| |
| struct qib_ibport { |
| struct rvt_ibport rvp; |
| struct rvt_ah *smi_ah; |
| __be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */ |
| struct qib_pma_counters __percpu *pmastats; |
| u64 z_unicast_xmit; /* starting count for PMA */ |
| u64 z_unicast_rcv; /* starting count for PMA */ |
| u64 z_multicast_xmit; /* starting count for PMA */ |
| u64 z_multicast_rcv; /* starting count for PMA */ |
| 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_local_link_integrity_errors; /* starting count for PMA */ |
| u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */ |
| u32 z_vl15_dropped; /* starting count for PMA */ |
| u8 sl_to_vl[16]; |
| }; |
| |
| struct qib_ibdev { |
| struct rvt_dev_info rdi; |
| |
| struct list_head piowait; /* list for wait PIO buf */ |
| struct list_head dmawait; /* list for wait DMA */ |
| struct list_head txwait; /* list for wait qib_verbs_txreq */ |
| struct list_head memwait; /* list for wait kernel memory */ |
| struct list_head txreq_free; |
| struct timer_list mem_timer; |
| struct qib_pio_header *pio_hdrs; |
| dma_addr_t pio_hdrs_phys; |
| u32 qp_rnd; /* random bytes for hash */ |
| |
| u32 n_piowait; |
| u32 n_txwait; |
| |
| #ifdef CONFIG_DEBUG_FS |
| /* per HCA debugfs */ |
| struct dentry *qib_ibdev_dbg; |
| #endif |
| }; |
| |
| struct qib_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; |
| u32 vl15_dropped; |
| }; |
| |
| static inline struct qib_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 qib_ibdev, rdi); |
| } |
| |
| /* |
| * Send if not busy or waiting for I/O and either |
| * a RC response is pending or we can process send work requests. |
| */ |
| static inline int qib_send_ok(struct rvt_qp *qp) |
| { |
| return !(qp->s_flags & (RVT_S_BUSY | RVT_S_ANY_WAIT_IO)) && |
| (qp->s_hdrwords || (qp->s_flags & RVT_S_RESP_PENDING) || |
| !(qp->s_flags & RVT_S_ANY_WAIT_SEND)); |
| } |
| |
| void _qib_schedule_send(struct rvt_qp *qp); |
| void qib_schedule_send(struct rvt_qp *qp); |
| |
| static inline int qib_pkey_ok(u16 pkey1, u16 pkey2) |
| { |
| u16 p1 = pkey1 & 0x7FFF; |
| u16 p2 = pkey2 & 0x7FFF; |
| |
| /* |
| * Low 15 bits must be non-zero and match, and |
| * one of the two must be a full member. |
| */ |
| return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0); |
| } |
| |
| void qib_bad_pqkey(struct qib_ibport *ibp, __be16 trap_num, u32 key, u32 sl, |
| u32 qp1, u32 qp2, __be16 lid1, __be16 lid2); |
| void qib_cap_mask_chg(struct rvt_dev_info *rdi, u8 port_num); |
| void qib_sys_guid_chg(struct qib_ibport *ibp); |
| void qib_node_desc_chg(struct qib_ibport *ibp); |
| int qib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, |
| const struct ib_wc *in_wc, const struct ib_grh *in_grh, |
| const struct ib_mad_hdr *in, size_t in_mad_size, |
| struct ib_mad_hdr *out, size_t *out_mad_size, |
| u16 *out_mad_pkey_index); |
| void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx); |
| void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx); |
| |
| /* |
| * Compare the lower 24 bits of the two values. |
| * Returns an integer <, ==, or > than zero. |
| */ |
| static inline int qib_cmp24(u32 a, u32 b) |
| { |
| return (((int) a) - ((int) b)) << 8; |
| } |
| |
| int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords, |
| u64 *rwords, u64 *spkts, u64 *rpkts, |
| u64 *xmit_wait); |
| |
| int qib_get_counters(struct qib_pportdata *ppd, |
| struct qib_verbs_counters *cntrs); |
| |
| /* |
| * Functions provided by qib driver for rdmavt to use |
| */ |
| unsigned qib_free_all_qps(struct rvt_dev_info *rdi); |
| void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp, gfp_t gfp); |
| void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp); |
| void qib_notify_qp_reset(struct rvt_qp *qp); |
| int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt, |
| enum ib_qp_type type, u8 port, gfp_t gfp); |
| void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait); |
| #ifdef CONFIG_DEBUG_FS |
| |
| struct qib_qp_iter; |
| |
| struct qib_qp_iter *qib_qp_iter_init(struct qib_ibdev *dev); |
| |
| int qib_qp_iter_next(struct qib_qp_iter *iter); |
| |
| void qib_qp_iter_print(struct seq_file *s, struct qib_qp_iter *iter); |
| |
| #endif |
| |
| unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult); |
| |
| void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail); |
| |
| void qib_put_txreq(struct qib_verbs_txreq *tx); |
| |
| int qib_verbs_send(struct rvt_qp *qp, struct ib_header *hdr, |
| u32 hdrwords, struct rvt_sge_state *ss, u32 len); |
| |
| void qib_copy_sge(struct rvt_sge_state *ss, void *data, u32 length, |
| int release); |
| |
| void qib_uc_rcv(struct qib_ibport *ibp, struct ib_header *hdr, |
| int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
| |
| void qib_rc_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr, |
| int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
| |
| int qib_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr); |
| |
| int qib_check_send_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe); |
| |
| struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid); |
| |
| void qib_rc_rnr_retry(unsigned long arg); |
| |
| void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr); |
| |
| int qib_post_ud_send(struct rvt_qp *qp, struct ib_send_wr *wr); |
| |
| void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr, |
| int has_grh, void *data, u32 tlen, struct rvt_qp *qp); |
| |
| void mr_rcu_callback(struct rcu_head *list); |
| |
| int qib_get_rwqe(struct rvt_qp *qp, int wr_id_only); |
| |
| void qib_migrate_qp(struct rvt_qp *qp); |
| |
| int qib_ruc_check_hdr(struct qib_ibport *ibp, struct ib_header *hdr, |
| int has_grh, struct rvt_qp *qp, u32 bth0); |
| |
| u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr, |
| const struct ib_global_route *grh, u32 hwords, u32 nwords); |
| |
| void qib_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr, |
| u32 bth0, u32 bth2); |
| |
| void _qib_do_send(struct work_struct *work); |
| |
| void qib_do_send(struct rvt_qp *qp); |
| |
| void qib_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe, |
| enum ib_wc_status status); |
| |
| void qib_send_rc_ack(struct rvt_qp *qp); |
| |
| int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags); |
| |
| int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags); |
| |
| int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags); |
| |
| int qib_register_ib_device(struct qib_devdata *); |
| |
| void qib_unregister_ib_device(struct qib_devdata *); |
| |
| void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32); |
| |
| void qib_ib_piobufavail(struct qib_devdata *); |
| |
| unsigned qib_get_npkeys(struct qib_devdata *); |
| |
| unsigned qib_get_pkey(struct qib_ibport *, unsigned); |
| |
| extern const enum ib_wc_opcode ib_qib_wc_opcode[]; |
| |
| /* |
| * Below HCA-independent IB PhysPortState values, returned |
| * by the f_ibphys_portstate() routine. |
| */ |
| #define IB_PHYSPORTSTATE_SLEEP 1 |
| #define IB_PHYSPORTSTATE_POLL 2 |
| #define IB_PHYSPORTSTATE_DISABLED 3 |
| #define IB_PHYSPORTSTATE_CFG_TRAIN 4 |
| #define IB_PHYSPORTSTATE_LINKUP 5 |
| #define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6 |
| #define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8 |
| #define IB_PHYSPORTSTATE_CFG_IDLE 0xB |
| #define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC |
| #define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE |
| #define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF |
| #define IB_PHYSPORTSTATE_CFG_ENH 0x10 |
| #define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13 |
| |
| extern const int ib_rvt_state_ops[]; |
| |
| extern __be64 ib_qib_sys_image_guid; /* in network order */ |
| |
| extern unsigned int ib_rvt_lkey_table_size; |
| |
| extern unsigned int ib_qib_max_cqes; |
| |
| extern unsigned int ib_qib_max_cqs; |
| |
| extern unsigned int ib_qib_max_qp_wrs; |
| |
| extern unsigned int ib_qib_max_qps; |
| |
| extern unsigned int ib_qib_max_sges; |
| |
| extern unsigned int ib_qib_max_mcast_grps; |
| |
| extern unsigned int ib_qib_max_mcast_qp_attached; |
| |
| extern unsigned int ib_qib_max_srqs; |
| |
| extern unsigned int ib_qib_max_srq_sges; |
| |
| extern unsigned int ib_qib_max_srq_wrs; |
| |
| extern const u32 ib_qib_rnr_table[]; |
| |
| extern const struct rvt_operation_params qib_post_parms[]; |
| |
| #endif /* QIB_VERBS_H */ |
