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/*
* Copyright (c) 2005 Topspin Communications. 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 KERN_ABI_H
#define KERN_ABI_H
#include <linux/types.h>
/*
* Increment this value if any changes that break userspace ABI
* compatibility are made.
*/
#define IB_USER_VERBS_ABI_VERSION 1
enum {
IB_USER_VERBS_CMD_GET_CONTEXT,
IB_USER_VERBS_CMD_GET_EVENT_FDS,
IB_USER_VERBS_CMD_ALLOC_PD,
IB_USER_VERBS_CMD_DEALLOC_PD,
IB_USER_VERBS_CMD_REG_MR,
IB_USER_VERBS_CMD_DEREG_MR
};
/*
* Make sure that all structs defined in this file remain laid out so
* that they pack the same way on 32-bit and 64-bit architectures (to
* avoid incompatibility between 32-bit userspace and 64-bit kernels).
* In particular do not use pointer types -- pass pointers in __u64
* instead.
*/
struct ibv_kern_async_event {
__u32 event_type;
__u32 element;
};
struct ibv_comp_event {
__u32 cq_handle;
};
/*
* All commands from userspace should start with a __u32 command field
* followed by __u16 in_words and out_words fields (which give the
* length of the command block and response buffer if any in 32-bit
* words). The kernel driver will read these fields first and read
* the rest of the command struct based on these value.
*/
struct ibv_get_context {
__u32 command;
__u16 in_words;
__u16 out_words;
__u64 response;
};
struct ibv_get_context_resp {
__u32 num_cq_events;
};
struct ibv_get_event_fds {
__u32 command;
__u16 in_words;
__u16 out_words;
__u64 response;
};
struct ibv_get_event_fds_resp {
__u32 async_fd;
__u32 cq_fd[1];
};
#endif /* KERN_ABI_H */
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