cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

efa-abi.h (2768B)

      1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
      2/*
      3 * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
      4 */
      5
      6#ifndef EFA_ABI_USER_H
      7#define EFA_ABI_USER_H
      8
      9#include <linux/types.h>
     10
     11/*
     12 * Increment this value if any changes that break userspace ABI
     13 * compatibility are made.
     14 */
     15#define EFA_UVERBS_ABI_VERSION 1
     16
     17/*
     18 * Keep structs aligned to 8 bytes.
     19 * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the
     20 * hex bit offset of the field.
     21 */
     22
     23enum {
     24	EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH  = 1 << 0,
     25	EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,
     26};
     27
     28struct efa_ibv_alloc_ucontext_cmd {
     29	__u32 comp_mask;
     30	__u8 reserved_20[4];
     31};
     32
     33enum efa_ibv_user_cmds_supp_udata {
     34	EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
     35	EFA_USER_CMDS_SUPP_UDATA_CREATE_AH    = 1 << 1,
     36};
     37
     38struct efa_ibv_alloc_ucontext_resp {
     39	__u32 comp_mask;
     40	__u32 cmds_supp_udata_mask;
     41	__u16 sub_cqs_per_cq;
     42	__u16 inline_buf_size;
     43	__u32 max_llq_size; /* bytes */
     44	__u16 max_tx_batch; /* units of 64 bytes */
     45	__u16 min_sq_wr;
     46	__u8 reserved_a0[4];
     47};
     48
     49struct efa_ibv_alloc_pd_resp {
     50	__u32 comp_mask;
     51	__u16 pdn;
     52	__u8 reserved_30[2];
     53};
     54
     55enum {
     56	EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,
     57};
     58
     59struct efa_ibv_create_cq {
     60	__u32 comp_mask;
     61	__u32 cq_entry_size;
     62	__u16 num_sub_cqs;
     63	__u8 flags;
     64	__u8 reserved_58[5];
     65};
     66
     67enum {
     68	EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,
     69};
     70
     71struct efa_ibv_create_cq_resp {
     72	__u32 comp_mask;
     73	__u8 reserved_20[4];
     74	__aligned_u64 q_mmap_key;
     75	__aligned_u64 q_mmap_size;
     76	__u16 cq_idx;
     77	__u8 reserved_d0[2];
     78	__u32 db_off;
     79	__aligned_u64 db_mmap_key;
     80};
     81
     82enum {
     83	EFA_QP_DRIVER_TYPE_SRD = 0,
     84};
     85
     86struct efa_ibv_create_qp {
     87	__u32 comp_mask;
     88	__u32 rq_ring_size; /* bytes */
     89	__u32 sq_ring_size; /* bytes */
     90	__u32 driver_qp_type;
     91};
     92
     93struct efa_ibv_create_qp_resp {
     94	__u32 comp_mask;
     95	/* the offset inside the page of the rq db */
     96	__u32 rq_db_offset;
     97	/* the offset inside the page of the sq db */
     98	__u32 sq_db_offset;
     99	/* the offset inside the page of descriptors buffer */
    100	__u32 llq_desc_offset;
    101	__aligned_u64 rq_mmap_key;
    102	__aligned_u64 rq_mmap_size;
    103	__aligned_u64 rq_db_mmap_key;
    104	__aligned_u64 sq_db_mmap_key;
    105	__aligned_u64 llq_desc_mmap_key;
    106	__u16 send_sub_cq_idx;
    107	__u16 recv_sub_cq_idx;
    108	__u8 reserved_1e0[4];
    109};
    110
    111struct efa_ibv_create_ah_resp {
    112	__u32 comp_mask;
    113	__u16 efa_address_handle;
    114	__u8 reserved_30[2];
    115};
    116
    117enum {
    118	EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,
    119	EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
    120	EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,
    121};
    122
    123struct efa_ibv_ex_query_device_resp {
    124	__u32 comp_mask;
    125	__u32 max_sq_wr;
    126	__u32 max_rq_wr;
    127	__u16 max_sq_sge;
    128	__u16 max_rq_sge;
    129	__u32 max_rdma_size;
    130	__u32 device_caps;
    131};
    132
    133#endif /* EFA_ABI_USER_H */