[PATCH] IB uverbs: add user verbs ABI header
Add the ib_user_verbs.h header file, which defines the ABI used by InfiniBand userspace verbs for kernel/user communication. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Roland Dreier
Linus Torvalds
parent
1cf296b66a
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/*
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* Copyright (c) 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Cisco Systems. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* $Id: ib_user_verbs.h 2708 2005-06-24 17:27:21Z roland $
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*/
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#ifndef IB_USER_VERBS_H
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#define IB_USER_VERBS_H
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#include <linux/types.h>
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/*
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* Increment this value if any changes that break userspace ABI
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* compatibility are made.
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*/
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#define IB_USER_VERBS_ABI_VERSION 1
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enum {
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IB_USER_VERBS_CMD_QUERY_PARAMS,
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IB_USER_VERBS_CMD_GET_CONTEXT,
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IB_USER_VERBS_CMD_QUERY_DEVICE,
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IB_USER_VERBS_CMD_QUERY_PORT,
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IB_USER_VERBS_CMD_QUERY_GID,
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IB_USER_VERBS_CMD_QUERY_PKEY,
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IB_USER_VERBS_CMD_ALLOC_PD,
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IB_USER_VERBS_CMD_DEALLOC_PD,
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IB_USER_VERBS_CMD_CREATE_AH,
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IB_USER_VERBS_CMD_MODIFY_AH,
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IB_USER_VERBS_CMD_QUERY_AH,
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IB_USER_VERBS_CMD_DESTROY_AH,
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IB_USER_VERBS_CMD_REG_MR,
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IB_USER_VERBS_CMD_REG_SMR,
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IB_USER_VERBS_CMD_REREG_MR,
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IB_USER_VERBS_CMD_QUERY_MR,
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IB_USER_VERBS_CMD_DEREG_MR,
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IB_USER_VERBS_CMD_ALLOC_MW,
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IB_USER_VERBS_CMD_BIND_MW,
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IB_USER_VERBS_CMD_DEALLOC_MW,
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IB_USER_VERBS_CMD_CREATE_CQ,
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IB_USER_VERBS_CMD_RESIZE_CQ,
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IB_USER_VERBS_CMD_DESTROY_CQ,
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IB_USER_VERBS_CMD_POLL_CQ,
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IB_USER_VERBS_CMD_PEEK_CQ,
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IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
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IB_USER_VERBS_CMD_CREATE_QP,
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IB_USER_VERBS_CMD_QUERY_QP,
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IB_USER_VERBS_CMD_MODIFY_QP,
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IB_USER_VERBS_CMD_DESTROY_QP,
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IB_USER_VERBS_CMD_POST_SEND,
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IB_USER_VERBS_CMD_POST_RECV,
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IB_USER_VERBS_CMD_ATTACH_MCAST,
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IB_USER_VERBS_CMD_DETACH_MCAST
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};
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/*
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* Make sure that all structs defined in this file remain laid out so
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* that they pack the same way on 32-bit and 64-bit architectures (to
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* avoid incompatibility between 32-bit userspace and 64-bit kernels).
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* In particular do not use pointer types -- pass pointers in __u64
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* instead.
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*/
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struct ib_uverbs_async_event_desc {
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__u64 element;
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__u32 event_type; /* enum ib_event_type */
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__u32 reserved;
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};
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struct ib_uverbs_comp_event_desc {
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__u64 cq_handle;
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};
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/*
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* All commands from userspace should start with a __u32 command field
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* followed by __u16 in_words and out_words fields (which give the
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* length of the command block and response buffer if any in 32-bit
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* words). The kernel driver will read these fields first and read
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* the rest of the command struct based on these value.
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*/
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struct ib_uverbs_cmd_hdr {
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__u32 command;
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__u16 in_words;
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__u16 out_words;
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};
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/*
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* No driver_data for "query params" command, since this is intended
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* to be a core function with no possible device dependence.
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*/
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struct ib_uverbs_query_params {
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__u64 response;
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};
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struct ib_uverbs_query_params_resp {
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__u32 num_cq_events;
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};
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struct ib_uverbs_get_context {
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__u64 response;
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__u64 cq_fd_tab;
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__u64 driver_data[0];
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};
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struct ib_uverbs_get_context_resp {
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__u32 async_fd;
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__u32 reserved;
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};
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struct ib_uverbs_query_device {
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__u64 response;
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__u64 driver_data[0];
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};
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struct ib_uverbs_query_device_resp {
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__u64 fw_ver;
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__u64 node_guid;
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__u64 sys_image_guid;
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__u64 max_mr_size;
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__u64 page_size_cap;
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__u32 vendor_id;
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__u32 vendor_part_id;
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__u32 hw_ver;
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__u32 max_qp;
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__u32 max_qp_wr;
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__u32 device_cap_flags;
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__u32 max_sge;
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__u32 max_sge_rd;
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__u32 max_cq;
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__u32 max_cqe;
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__u32 max_mr;
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__u32 max_pd;
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__u32 max_qp_rd_atom;
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__u32 max_ee_rd_atom;
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__u32 max_res_rd_atom;
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__u32 max_qp_init_rd_atom;
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__u32 max_ee_init_rd_atom;
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__u32 atomic_cap;
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__u32 max_ee;
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__u32 max_rdd;
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__u32 max_mw;
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__u32 max_raw_ipv6_qp;
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__u32 max_raw_ethy_qp;
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__u32 max_mcast_grp;
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__u32 max_mcast_qp_attach;
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__u32 max_total_mcast_qp_attach;
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__u32 max_ah;
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__u32 max_fmr;
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__u32 max_map_per_fmr;
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__u32 max_srq;
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__u32 max_srq_wr;
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__u32 max_srq_sge;
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__u16 max_pkeys;
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__u8 local_ca_ack_delay;
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__u8 phys_port_cnt;
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__u8 reserved[4];
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};
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struct ib_uverbs_query_port {
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__u64 response;
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__u8 port_num;
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__u8 reserved[7];
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__u64 driver_data[0];
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};
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struct ib_uverbs_query_port_resp {
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__u32 port_cap_flags;
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__u32 max_msg_sz;
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__u32 bad_pkey_cntr;
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__u32 qkey_viol_cntr;
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__u32 gid_tbl_len;
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__u16 pkey_tbl_len;
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__u16 lid;
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__u16 sm_lid;
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__u8 state;
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__u8 max_mtu;
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__u8 active_mtu;
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__u8 lmc;
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__u8 max_vl_num;
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__u8 sm_sl;
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__u8 subnet_timeout;
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__u8 init_type_reply;
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__u8 active_width;
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__u8 active_speed;
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__u8 phys_state;
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__u8 reserved[3];
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};
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struct ib_uverbs_query_gid {
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__u64 response;
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__u8 port_num;
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__u8 index;
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__u8 reserved[6];
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__u64 driver_data[0];
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};
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struct ib_uverbs_query_gid_resp {
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__u8 gid[16];
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};
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struct ib_uverbs_query_pkey {
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__u64 response;
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__u8 port_num;
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__u8 index;
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__u8 reserved[6];
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__u64 driver_data[0];
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};
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struct ib_uverbs_query_pkey_resp {
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__u16 pkey;
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__u16 reserved;
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};
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struct ib_uverbs_alloc_pd {
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__u64 response;
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__u64 driver_data[0];
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};
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struct ib_uverbs_alloc_pd_resp {
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__u32 pd_handle;
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};
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struct ib_uverbs_dealloc_pd {
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__u32 pd_handle;
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};
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struct ib_uverbs_reg_mr {
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__u64 response;
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__u64 start;
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__u64 length;
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__u64 hca_va;
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__u32 pd_handle;
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__u32 access_flags;
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__u64 driver_data[0];
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};
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struct ib_uverbs_reg_mr_resp {
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__u32 mr_handle;
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__u32 lkey;
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__u32 rkey;
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};
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struct ib_uverbs_dereg_mr {
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__u32 mr_handle;
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};
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struct ib_uverbs_create_cq {
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__u64 response;
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__u64 user_handle;
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__u32 cqe;
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__u32 event_handler;
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__u64 driver_data[0];
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};
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struct ib_uverbs_create_cq_resp {
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__u32 cq_handle;
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__u32 cqe;
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};
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struct ib_uverbs_destroy_cq {
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__u32 cq_handle;
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};
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struct ib_uverbs_create_qp {
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__u64 response;
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__u64 user_handle;
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__u32 pd_handle;
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__u32 send_cq_handle;
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__u32 recv_cq_handle;
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__u32 srq_handle;
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__u32 max_send_wr;
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__u32 max_recv_wr;
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__u32 max_send_sge;
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__u32 max_recv_sge;
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__u32 max_inline_data;
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__u8 sq_sig_all;
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__u8 qp_type;
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__u8 is_srq;
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__u8 reserved;
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__u64 driver_data[0];
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};
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struct ib_uverbs_create_qp_resp {
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__u32 qp_handle;
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__u32 qpn;
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};
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/*
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* This struct needs to remain a multiple of 8 bytes to keep the
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* alignment of the modify QP parameters.
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*/
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struct ib_uverbs_qp_dest {
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__u8 dgid[16];
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__u32 flow_label;
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__u16 dlid;
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__u16 reserved;
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__u8 sgid_index;
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__u8 hop_limit;
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__u8 traffic_class;
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__u8 sl;
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__u8 src_path_bits;
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__u8 static_rate;
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__u8 is_global;
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__u8 port_num;
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};
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struct ib_uverbs_modify_qp {
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struct ib_uverbs_qp_dest dest;
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struct ib_uverbs_qp_dest alt_dest;
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__u32 qp_handle;
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__u32 attr_mask;
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__u32 qkey;
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__u32 rq_psn;
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__u32 sq_psn;
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__u32 dest_qp_num;
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__u32 qp_access_flags;
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__u16 pkey_index;
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__u16 alt_pkey_index;
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__u8 qp_state;
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__u8 cur_qp_state;
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__u8 path_mtu;
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__u8 path_mig_state;
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__u8 en_sqd_async_notify;
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__u8 max_rd_atomic;
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__u8 max_dest_rd_atomic;
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__u8 min_rnr_timer;
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__u8 port_num;
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__u8 timeout;
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__u8 retry_cnt;
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__u8 rnr_retry;
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__u8 alt_port_num;
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__u8 alt_timeout;
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__u8 reserved[2];
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__u64 driver_data[0];
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};
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struct ib_uverbs_modify_qp_resp {
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};
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struct ib_uverbs_destroy_qp {
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__u32 qp_handle;
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};
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struct ib_uverbs_attach_mcast {
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__u8 gid[16];
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__u32 qp_handle;
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__u16 mlid;
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__u16 reserved;
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__u64 driver_data[0];
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};
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struct ib_uverbs_detach_mcast {
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__u8 gid[16];
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__u32 qp_handle;
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__u16 mlid;
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__u16 reserved;
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__u64 driver_data[0];
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};
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#endif /* IB_USER_VERBS_H */
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