1 /* 2 * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef RDMA_USER_IOCTL_CMDS_H 34 #define RDMA_USER_IOCTL_CMDS_H 35 36 #ifdef _KERNEL 37 #include <linux/types.h> 38 #include <linux/ioctl.h> 39 #else 40 #include <infiniband/types.h> 41 #include <sys/ioccom.h> 42 #endif 43 44 /* Documentation/ioctl/ioctl-number.rst */ 45 #define RDMA_IOCTL_MAGIC 0x1b 46 #define RDMA_VERBS_IOCTL \ 47 _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr) 48 49 enum { 50 /* User input */ 51 UVERBS_ATTR_F_MANDATORY = 1U << 0, 52 /* 53 * Valid output bit should be ignored and considered set in 54 * mandatory fields. This bit is kernel output. 55 */ 56 UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1, 57 }; 58 59 struct ib_uverbs_attr { 60 __u16 attr_id; /* command specific type attribute */ 61 __u16 len; /* only for pointers and IDRs array */ 62 __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */ 63 union { 64 struct { 65 __u8 elem_id; 66 __u8 reserved; 67 } enum_data; 68 __u16 reserved; 69 } attr_data; 70 union { 71 /* 72 * ptr to command, inline data, idr/fd or 73 * ptr to __u32 array of IDRs 74 */ 75 __aligned_u64 data; 76 /* Used by FD_IN and FD_OUT */ 77 __s64 data_s64; 78 }; 79 }; 80 81 struct ib_uverbs_ioctl_hdr { 82 __u16 length; 83 __u16 object_id; 84 __u16 method_id; 85 __u16 num_attrs; 86 __aligned_u64 reserved1; 87 __u32 driver_id; 88 __u32 reserved2; 89 struct ib_uverbs_attr attrs[0]; 90 }; 91 92 #endif 93