tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
52enum {
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
62struct 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
70struct 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 */