diff options
Diffstat (limited to 'include/uapi/rdma/rdma_user_ioctl_cmds.h')
-rw-r--r-- | include/uapi/rdma/rdma_user_ioctl_cmds.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/include/uapi/rdma/rdma_user_ioctl_cmds.h b/include/uapi/rdma/rdma_user_ioctl_cmds.h new file mode 100644 index 000000000..38ab7accb --- /dev/null +++ b/include/uapi/rdma/rdma_user_ioctl_cmds.h @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef RDMA_USER_IOCTL_CMDS_H +#define RDMA_USER_IOCTL_CMDS_H + +#include <linux/types.h> +#include <linux/ioctl.h> + +/* Documentation/userspace-api/ioctl/ioctl-number.rst */ +#define RDMA_IOCTL_MAGIC 0x1b +#define RDMA_VERBS_IOCTL \ + _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr) + +enum { + /* User input */ + UVERBS_ATTR_F_MANDATORY = 1U << 0, + /* + * Valid output bit should be ignored and considered set in + * mandatory fields. This bit is kernel output. + */ + UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1, +}; + +struct ib_uverbs_attr { + __u16 attr_id; /* command specific type attribute */ + __u16 len; /* only for pointers and IDRs array */ + __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */ + union { + struct { + __u8 elem_id; + __u8 reserved; + } enum_data; + __u16 reserved; + } attr_data; + union { + /* + * ptr to command, inline data, idr/fd or + * ptr to __u32 array of IDRs + */ + __aligned_u64 data; + /* Used by FD_IN and FD_OUT */ + __s64 data_s64; + }; +}; + +struct ib_uverbs_ioctl_hdr { + __u16 length; + __u16 object_id; + __u16 method_id; + __u16 num_attrs; + __aligned_u64 reserved1; + __u32 driver_id; + __u32 reserved2; + struct ib_uverbs_attr attrs[0]; +}; + +#endif |