Add the EFA ABI file exposed to userspace.
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| 1 | +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ | |
| 2 | +/* | |
| 3 | + * Copyright 2018-2019 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 | + | |
| 23 | +enum efa_ibv_user_cmds_supp_udata { | |
| 24 | + EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0, | |
| 25 | + EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1, | |
| 26 | +}; | |
| 27 | + | |
| 28 | +struct efa_ibv_alloc_ucontext_resp { | |
| 29 | + __u32 comp_mask; | |
| 30 | + __u32 cmds_supp_udata_mask; | |
| 31 | + __u16 sub_cqs_per_cq; | |
| 32 | + __u16 inline_buf_size; | |
| 33 | + __u32 max_llq_size; /* bytes */ | |
| 34 | +}; | |
| 35 | + | |
| 36 | +struct efa_ibv_alloc_pd_resp { | |
| 37 | + __u32 comp_mask; | |
| 38 | + __u16 pdn; | |
| 39 | + __u8 reserved_30[2]; | |
| 40 | +}; | |
| 41 | + | |
| 42 | +struct efa_ibv_create_cq { | |
| 43 | + __u32 comp_mask; | |
| 44 | + __u32 cq_entry_size; | |
| 45 | + __u16 num_sub_cqs; | |
| 46 | + __u8 reserved_50[6]; | |
| 47 | +}; | |
| 48 | + | |
| 49 | +struct efa_ibv_create_cq_resp { | |
| 50 | + __u32 comp_mask; | |
| 51 | + __u8 reserved_20[4]; | |
| 52 | + __aligned_u64 q_mmap_key; | |
| 53 | + __aligned_u64 q_mmap_size; | |
| 54 | + __u16 cq_idx; | |
| 55 | + __u8 reserved_d0[6]; | |
| 56 | +}; | |
| 57 | + | |
| 58 | +enum { | |
| 59 | + EFA_QP_DRIVER_TYPE_SRD = 0, | |
| 60 | +}; | |
| 61 | + | |
| 62 | +struct efa_ibv_create_qp { | |
| 63 | + __u32 comp_mask; | |
| 64 | + __u32 rq_ring_size; /* bytes */ | |
| 65 | + __u32 sq_ring_size; /* bytes */ | |
| 66 | + __u32 driver_qp_type; | |
| 67 | +}; | |
| 68 | + | |
| 69 | +struct efa_ibv_create_qp_resp { | |
| 70 | + __u32 comp_mask; | |
| 71 | + /* the offset inside the page of the rq db */ | |
| 72 | + __u32 rq_db_offset; | |
| 73 | + /* the offset inside the page of the sq db */ | |
| 74 | + __u32 sq_db_offset; | |
| 75 | + /* the offset inside the page of descriptors buffer */ | |
| 76 | + __u32 llq_desc_offset; | |
| 77 | + __aligned_u64 rq_mmap_key; | |
| 78 | + __aligned_u64 rq_mmap_size; | |
| 79 | + __aligned_u64 rq_db_mmap_key; | |
| 80 | + __aligned_u64 sq_db_mmap_key; | |
| 81 | + __aligned_u64 llq_desc_mmap_key; | |
| 82 | + __u16 send_sub_cq_idx; | |
| 83 | + __u16 recv_sub_cq_idx; | |
| 84 | + __u8 reserved_1e0[4]; | |
| 85 | +}; | |
| 86 | + | |
| 87 | +struct efa_ibv_create_ah_resp { | |
| 88 | + __u32 comp_mask; | |
| 89 | + __u16 efa_address_handle; | |
| 90 | + __u8 reserved_30[2]; | |
| 91 | +}; | |
| 92 | + | |
| 93 | +struct efa_ibv_ex_query_device_resp { | |
| 94 | + __u32 comp_mask; | |
| 95 | + __u32 max_sq_wr; | |
| 96 | + __u32 max_rq_wr; | |
| 97 | + __u16 max_sq_sge; | |
| 98 | + __u16 max_rq_sge; | |
| 99 | +}; | |
| 100 | + | |
| 101 | +#endif /* EFA_ABI_USER_H */ | |