1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This software is available to you under a choice of one of two 5*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU 6*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file 7*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the 8*4882a593Smuzhiyun * OpenIB.org BSD license below: 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or 11*4882a593Smuzhiyun * without modification, are permitted provided that the following 12*4882a593Smuzhiyun * conditions are met: 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * - Redistributions of source code must retain the above 15*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 16*4882a593Smuzhiyun * disclaimer. 17*4882a593Smuzhiyun * 18*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above 19*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 20*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials 21*4882a593Smuzhiyun * provided with the distribution. 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30*4882a593Smuzhiyun * SOFTWARE. 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #ifndef RDMA_USER_IOCTL_CMDS_H 34*4882a593Smuzhiyun #define RDMA_USER_IOCTL_CMDS_H 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #include <linux/types.h> 37*4882a593Smuzhiyun #include <linux/ioctl.h> 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* Documentation/userspace-api/ioctl/ioctl-number.rst */ 40*4882a593Smuzhiyun #define RDMA_IOCTL_MAGIC 0x1b 41*4882a593Smuzhiyun #define RDMA_VERBS_IOCTL \ 42*4882a593Smuzhiyun _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr) 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun enum { 45*4882a593Smuzhiyun /* User input */ 46*4882a593Smuzhiyun UVERBS_ATTR_F_MANDATORY = 1U << 0, 47*4882a593Smuzhiyun /* 48*4882a593Smuzhiyun * Valid output bit should be ignored and considered set in 49*4882a593Smuzhiyun * mandatory fields. This bit is kernel output. 50*4882a593Smuzhiyun */ 51*4882a593Smuzhiyun UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1, 52*4882a593Smuzhiyun }; 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun struct ib_uverbs_attr { 55*4882a593Smuzhiyun __u16 attr_id; /* command specific type attribute */ 56*4882a593Smuzhiyun __u16 len; /* only for pointers and IDRs array */ 57*4882a593Smuzhiyun __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */ 58*4882a593Smuzhiyun union { 59*4882a593Smuzhiyun struct { 60*4882a593Smuzhiyun __u8 elem_id; 61*4882a593Smuzhiyun __u8 reserved; 62*4882a593Smuzhiyun } enum_data; 63*4882a593Smuzhiyun __u16 reserved; 64*4882a593Smuzhiyun } attr_data; 65*4882a593Smuzhiyun union { 66*4882a593Smuzhiyun /* 67*4882a593Smuzhiyun * ptr to command, inline data, idr/fd or 68*4882a593Smuzhiyun * ptr to __u32 array of IDRs 69*4882a593Smuzhiyun */ 70*4882a593Smuzhiyun __aligned_u64 data; 71*4882a593Smuzhiyun /* Used by FD_IN and FD_OUT */ 72*4882a593Smuzhiyun __s64 data_s64; 73*4882a593Smuzhiyun }; 74*4882a593Smuzhiyun }; 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun struct ib_uverbs_ioctl_hdr { 77*4882a593Smuzhiyun __u16 length; 78*4882a593Smuzhiyun __u16 object_id; 79*4882a593Smuzhiyun __u16 method_id; 80*4882a593Smuzhiyun __u16 num_attrs; 81*4882a593Smuzhiyun __aligned_u64 reserved1; 82*4882a593Smuzhiyun __u32 driver_id; 83*4882a593Smuzhiyun __u32 reserved2; 84*4882a593Smuzhiyun struct ib_uverbs_attr attrs[0]; 85*4882a593Smuzhiyun }; 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun #endif 88