mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 21:51:40 +00:00
531094dc71
Add rdma write capability that is propagated from the device to rdma-core. Enable MR creation with remote write permissions according to this device capability. Link: https://lore.kernel.org/r/20230404154313.35194-1-ynachum@amazon.com Reviewed-by: Firas Jahjah <firasj@amazon.com> Reviewed-by: Michael Margolin <mrgolin@amazon.com> Signed-off-by: Yonatan Nachum <ynachum@amazon.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
138 lines
2.9 KiB
C
138 lines
2.9 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
|
|
/*
|
|
* Copyright 2018-2023 Amazon.com, Inc. or its affiliates. All rights reserved.
|
|
*/
|
|
|
|
#ifndef EFA_ABI_USER_H
|
|
#define EFA_ABI_USER_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* Increment this value if any changes that break userspace ABI
|
|
* compatibility are made.
|
|
*/
|
|
#define EFA_UVERBS_ABI_VERSION 1
|
|
|
|
/*
|
|
* Keep structs aligned to 8 bytes.
|
|
* Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the
|
|
* hex bit offset of the field.
|
|
*/
|
|
|
|
enum {
|
|
EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,
|
|
EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,
|
|
};
|
|
|
|
struct efa_ibv_alloc_ucontext_cmd {
|
|
__u32 comp_mask;
|
|
__u8 reserved_20[4];
|
|
};
|
|
|
|
enum efa_ibv_user_cmds_supp_udata {
|
|
EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
|
|
EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,
|
|
};
|
|
|
|
struct efa_ibv_alloc_ucontext_resp {
|
|
__u32 comp_mask;
|
|
__u32 cmds_supp_udata_mask;
|
|
__u16 sub_cqs_per_cq;
|
|
__u16 inline_buf_size;
|
|
__u32 max_llq_size; /* bytes */
|
|
__u16 max_tx_batch; /* units of 64 bytes */
|
|
__u16 min_sq_wr;
|
|
__u8 reserved_a0[4];
|
|
};
|
|
|
|
struct efa_ibv_alloc_pd_resp {
|
|
__u32 comp_mask;
|
|
__u16 pdn;
|
|
__u8 reserved_30[2];
|
|
};
|
|
|
|
enum {
|
|
EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,
|
|
EFA_CREATE_CQ_WITH_SGID = 1 << 1,
|
|
};
|
|
|
|
struct efa_ibv_create_cq {
|
|
__u32 comp_mask;
|
|
__u32 cq_entry_size;
|
|
__u16 num_sub_cqs;
|
|
__u8 flags;
|
|
__u8 reserved_58[5];
|
|
};
|
|
|
|
enum {
|
|
EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,
|
|
};
|
|
|
|
struct efa_ibv_create_cq_resp {
|
|
__u32 comp_mask;
|
|
__u8 reserved_20[4];
|
|
__aligned_u64 q_mmap_key;
|
|
__aligned_u64 q_mmap_size;
|
|
__u16 cq_idx;
|
|
__u8 reserved_d0[2];
|
|
__u32 db_off;
|
|
__aligned_u64 db_mmap_key;
|
|
};
|
|
|
|
enum {
|
|
EFA_QP_DRIVER_TYPE_SRD = 0,
|
|
};
|
|
|
|
struct efa_ibv_create_qp {
|
|
__u32 comp_mask;
|
|
__u32 rq_ring_size; /* bytes */
|
|
__u32 sq_ring_size; /* bytes */
|
|
__u32 driver_qp_type;
|
|
};
|
|
|
|
struct efa_ibv_create_qp_resp {
|
|
__u32 comp_mask;
|
|
/* the offset inside the page of the rq db */
|
|
__u32 rq_db_offset;
|
|
/* the offset inside the page of the sq db */
|
|
__u32 sq_db_offset;
|
|
/* the offset inside the page of descriptors buffer */
|
|
__u32 llq_desc_offset;
|
|
__aligned_u64 rq_mmap_key;
|
|
__aligned_u64 rq_mmap_size;
|
|
__aligned_u64 rq_db_mmap_key;
|
|
__aligned_u64 sq_db_mmap_key;
|
|
__aligned_u64 llq_desc_mmap_key;
|
|
__u16 send_sub_cq_idx;
|
|
__u16 recv_sub_cq_idx;
|
|
__u8 reserved_1e0[4];
|
|
};
|
|
|
|
struct efa_ibv_create_ah_resp {
|
|
__u32 comp_mask;
|
|
__u16 efa_address_handle;
|
|
__u8 reserved_30[2];
|
|
};
|
|
|
|
enum {
|
|
EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,
|
|
EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
|
|
EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,
|
|
EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3,
|
|
EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4,
|
|
EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5,
|
|
};
|
|
|
|
struct efa_ibv_ex_query_device_resp {
|
|
__u32 comp_mask;
|
|
__u32 max_sq_wr;
|
|
__u32 max_rq_wr;
|
|
__u16 max_sq_sge;
|
|
__u16 max_rq_sge;
|
|
__u32 max_rdma_size;
|
|
__u32 device_caps;
|
|
};
|
|
|
|
#endif /* EFA_ABI_USER_H */
|