1 /* 2 * Copyright (c) 2016 Mellanox Technologies, LTD. 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_H 34 #define RDMA_USER_IOCTL_H 35 36 #include <linux/types.h> 37 #include <linux/ioctl.h> 38 #include <rdma/ib_user_mad.h> 39 #include <rdma/hfi/hfi1_ioctl.h> 40 41 /* Documentation/ioctl/ioctl-number.txt */ 42 #define RDMA_IOCTL_MAGIC 0x1b 43 /* Legacy name, for user space application which already use it */ 44 #define IB_IOCTL_MAGIC RDMA_IOCTL_MAGIC 45 46 #define RDMA_VERBS_IOCTL \ 47 _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr) 48 49 #define UVERBS_ID_NS_MASK 0xF000 50 #define UVERBS_ID_NS_SHIFT 12 51 52 enum { 53 /* User input */ 54 UVERBS_ATTR_F_MANDATORY = 1U << 0, 55 /* 56 * Valid output bit should be ignored and considered set in 57 * mandatory fields. This bit is kernel output. 58 */ 59 UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1, 60 }; 61 62 struct ib_uverbs_attr { 63 __u16 attr_id; /* command specific type attribute */ 64 __u16 len; /* only for pointers */ 65 __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */ 66 __u16 reserved; 67 __u64 data; /* ptr to command, inline data or idr/fd */ 68 }; 69 70 struct ib_uverbs_ioctl_hdr { 71 __u16 length; 72 __u16 object_id; 73 __u16 method_id; 74 __u16 num_attrs; 75 __u64 reserved; 76 struct ib_uverbs_attr attrs[0]; 77 }; 78 79 /* 80 * General blocks assignments 81 * It is closed on purpose do not expose it it user space 82 * #define MAD_CMD_BASE 0x00 83 * #define HFI1_CMD_BAS 0xE0 84 */ 85 86 /* MAD specific section */ 87 #define IB_USER_MAD_REGISTER_AGENT _IOWR(RDMA_IOCTL_MAGIC, 0x01, struct ib_user_mad_reg_req) 88 #define IB_USER_MAD_UNREGISTER_AGENT _IOW(RDMA_IOCTL_MAGIC, 0x02, __u32) 89 #define IB_USER_MAD_ENABLE_PKEY _IO(RDMA_IOCTL_MAGIC, 0x03) 90 #define IB_USER_MAD_REGISTER_AGENT2 _IOWR(RDMA_IOCTL_MAGIC, 0x04, struct ib_user_mad_reg_req2) 91 92 /* HFI specific section */ 93 /* allocate HFI and context */ 94 #define HFI1_IOCTL_ASSIGN_CTXT _IOWR(RDMA_IOCTL_MAGIC, 0xE1, struct hfi1_user_info) 95 /* find out what resources we got */ 96 #define HFI1_IOCTL_CTXT_INFO _IOW(RDMA_IOCTL_MAGIC, 0xE2, struct hfi1_ctxt_info) 97 /* set up userspace */ 98 #define HFI1_IOCTL_USER_INFO _IOW(RDMA_IOCTL_MAGIC, 0xE3, struct hfi1_base_info) 99 /* update expected TID entries */ 100 #define HFI1_IOCTL_TID_UPDATE _IOWR(RDMA_IOCTL_MAGIC, 0xE4, struct hfi1_tid_info) 101 /* free expected TID entries */ 102 #define HFI1_IOCTL_TID_FREE _IOWR(RDMA_IOCTL_MAGIC, 0xE5, struct hfi1_tid_info) 103 /* force an update of PIO credit */ 104 #define HFI1_IOCTL_CREDIT_UPD _IO(RDMA_IOCTL_MAGIC, 0xE6) 105 /* control receipt of packets */ 106 #define HFI1_IOCTL_RECV_CTRL _IOW(RDMA_IOCTL_MAGIC, 0xE8, int) 107 /* set the kind of polling we want */ 108 #define HFI1_IOCTL_POLL_TYPE _IOW(RDMA_IOCTL_MAGIC, 0xE9, int) 109 /* ack & clear user status bits */ 110 #define HFI1_IOCTL_ACK_EVENT _IOW(RDMA_IOCTL_MAGIC, 0xEA, unsigned long) 111 /* set context's pkey */ 112 #define HFI1_IOCTL_SET_PKEY _IOW(RDMA_IOCTL_MAGIC, 0xEB, __u16) 113 /* reset context's HW send context */ 114 #define HFI1_IOCTL_CTXT_RESET _IO(RDMA_IOCTL_MAGIC, 0xEC) 115 /* read TID cache invalidations */ 116 #define HFI1_IOCTL_TID_INVAL_READ _IOWR(RDMA_IOCTL_MAGIC, 0xED, struct hfi1_tid_info) 117 /* get the version of the user cdev */ 118 #define HFI1_IOCTL_GET_VERS _IOR(RDMA_IOCTL_MAGIC, 0xEE, int) 119 120 #endif /* RDMA_USER_IOCTL_H */ 121