/*
* Copyright ( c ) 2018 , Mellanox Technologies 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 RDMA_USER_IOCTL_CMDS_H
#define RDMA_USER_IOCTL_CMDS_H
#include <linux/types.h>
#include <linux/ioctl.h>
/* Documentation/userspace-api/ioctl/ioctl-number.rst */
#define RDMA_IOCTL_MAGIC 0 x1b
#define RDMA_VERBS_IOCTL \
_IOWR(RDMA_IOCTL_MAGIC, 1 , struct ib_uverbs_ioctl_hdr)
enum {
/* User input */
UVERBS_ATTR_F_MANDATORY = 1 U << 0 ,
/*
* Valid output bit should be ignored and considered set in
* mandatory fields . This bit is kernel output .
*/
UVERBS_ATTR_F_VALID_OUTPUT = 1 U << 1 ,
};
struct ib_uverbs_attr {
__u16 attr_id; /* command specific type attribute */
__u16 len; /* only for pointers and IDRs array */
__u16 flags; /* combination of UVERBS_ATTR_F_XXXX */
union {
struct {
__u8 elem_id;
__u8 reserved;
} enum_data;
__u16 reserved;
} attr_data;
union {
/*
* ptr to command , inline data , idr / fd or
* ptr to _ _ u32 array of IDRs
*/
__aligned_u64 data;
/* Used by FD_IN and FD_OUT */
__s64 data_s64;
};
};
struct ib_uverbs_ioctl_hdr {
__u16 length;
__u16 object_id;
__u16 method_id;
__u16 num_attrs;
__aligned_u64 reserved1;
__u32 driver_id;
__u32 reserved2;
struct ib_uverbs_attr attrs[];
};
#endif
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