1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ 2 /* 3 * Copyright (c) 2016 Mellanox Technologies, LTD. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 #ifndef RDMA_USER_IOCTL_H 35 #define RDMA_USER_IOCTL_H 36 37 #include <linux/types.h> 38 #include <linux/ioctl.h> 39 #include <rdma/ib_user_mad.h> 40 #include <rdma/hfi/hfi1_ioctl.h> 41 42 /* Documentation/ioctl/ioctl-number.txt */ 43 #define RDMA_IOCTL_MAGIC 0x1b 44 /* Legacy name, for user space application which already use it */ 45 #define IB_IOCTL_MAGIC RDMA_IOCTL_MAGIC 46 47 #define RDMA_VERBS_IOCTL \ 48 _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr) 49 50 #define UVERBS_ID_NS_MASK 0xF000 51 #define UVERBS_ID_NS_SHIFT 12 52 53 enum { 54 /* User input */ 55 UVERBS_ATTR_F_MANDATORY = 1U << 0, 56 /* 57 * Valid output bit should be ignored and considered set in 58 * mandatory fields. This bit is kernel output. 59 */ 60 UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1, 61 }; 62 63 struct ib_uverbs_attr { 64 __u16 attr_id; /* command specific type attribute */ 65 __u16 len; /* only for pointers */ 66 __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */ 67 __u16 reserved; 68 __u64 data; /* ptr to command, inline data or idr/fd */ 69 }; 70 71 struct ib_uverbs_ioctl_hdr { 72 __u16 length; 73 __u16 object_id; 74 __u16 method_id; 75 __u16 num_attrs; 76 __u64 reserved; 77 struct ib_uverbs_attr attrs[0]; 78 }; 79 80 /* 81 * General blocks assignments 82 * It is closed on purpose do not expose it it user space 83 * #define MAD_CMD_BASE 0x00 84 * #define HFI1_CMD_BAS 0xE0 85 */ 86 87 /* MAD specific section */ 88 #define IB_USER_MAD_REGISTER_AGENT _IOWR(RDMA_IOCTL_MAGIC, 0x01, struct ib_user_mad_reg_req) 89 #define IB_USER_MAD_UNREGISTER_AGENT _IOW(RDMA_IOCTL_MAGIC, 0x02, __u32) 90 #define IB_USER_MAD_ENABLE_PKEY _IO(RDMA_IOCTL_MAGIC, 0x03) 91 #define IB_USER_MAD_REGISTER_AGENT2 _IOWR(RDMA_IOCTL_MAGIC, 0x04, struct ib_user_mad_reg_req2) 92 93 /* HFI specific section */ 94 /* allocate HFI and context */ 95 #define HFI1_IOCTL_ASSIGN_CTXT _IOWR(RDMA_IOCTL_MAGIC, 0xE1, struct hfi1_user_info) 96 /* find out what resources we got */ 97 #define HFI1_IOCTL_CTXT_INFO _IOW(RDMA_IOCTL_MAGIC, 0xE2, struct hfi1_ctxt_info) 98 /* set up userspace */ 99 #define HFI1_IOCTL_USER_INFO _IOW(RDMA_IOCTL_MAGIC, 0xE3, struct hfi1_base_info) 100 /* update expected TID entries */ 101 #define HFI1_IOCTL_TID_UPDATE _IOWR(RDMA_IOCTL_MAGIC, 0xE4, struct hfi1_tid_info) 102 /* free expected TID entries */ 103 #define HFI1_IOCTL_TID_FREE _IOWR(RDMA_IOCTL_MAGIC, 0xE5, struct hfi1_tid_info) 104 /* force an update of PIO credit */ 105 #define HFI1_IOCTL_CREDIT_UPD _IO(RDMA_IOCTL_MAGIC, 0xE6) 106 /* control receipt of packets */ 107 #define HFI1_IOCTL_RECV_CTRL _IOW(RDMA_IOCTL_MAGIC, 0xE8, int) 108 /* set the kind of polling we want */ 109 #define HFI1_IOCTL_POLL_TYPE _IOW(RDMA_IOCTL_MAGIC, 0xE9, int) 110 /* ack & clear user status bits */ 111 #define HFI1_IOCTL_ACK_EVENT _IOW(RDMA_IOCTL_MAGIC, 0xEA, unsigned long) 112 /* set context's pkey */ 113 #define HFI1_IOCTL_SET_PKEY _IOW(RDMA_IOCTL_MAGIC, 0xEB, __u16) 114 /* reset context's HW send context */ 115 #define HFI1_IOCTL_CTXT_RESET _IO(RDMA_IOCTL_MAGIC, 0xEC) 116 /* read TID cache invalidations */ 117 #define HFI1_IOCTL_TID_INVAL_READ _IOWR(RDMA_IOCTL_MAGIC, 0xED, struct hfi1_tid_info) 118 /* get the version of the user cdev */ 119 #define HFI1_IOCTL_GET_VERS _IOR(RDMA_IOCTL_MAGIC, 0xEE, int) 120 121 #endif /* RDMA_USER_IOCTL_H */ 122