| /* |
| * Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_IB_USER_H |
| #define MLX5_IB_USER_H |
| |
| #include <linux/types.h> |
| |
| #include "mlx5_ib.h" |
| |
| enum { |
| MLX5_QP_FLAG_SIGNATURE = 1 << 0, |
| MLX5_QP_FLAG_SCATTER_CQE = 1 << 1, |
| }; |
| |
| enum { |
| MLX5_SRQ_FLAG_SIGNATURE = 1 << 0, |
| }; |
| |
| |
| /* Increment this value if any changes that break userspace ABI |
| * compatibility are made. |
| */ |
| #define MLX5_IB_UVERBS_ABI_VERSION 1 |
| |
| /* Make sure that all structs defined in this file remain laid out so |
| * that they pack the same way on 32-bit and 64-bit architectures (to |
| * avoid incompatibility between 32-bit userspace and 64-bit kernels). |
| * In particular do not use pointer types -- pass pointers in __u64 |
| * instead. |
| */ |
| |
| struct mlx5_ib_alloc_ucontext_req { |
| __u32 total_num_uuars; |
| __u32 num_low_latency_uuars; |
| }; |
| |
| struct mlx5_ib_alloc_ucontext_req_v2 { |
| __u32 total_num_uuars; |
| __u32 num_low_latency_uuars; |
| __u32 flags; |
| __u32 comp_mask; |
| __u8 max_cqe_version; |
| __u8 reserved0; |
| __u16 reserved1; |
| __u32 reserved2; |
| }; |
| |
| enum mlx5_ib_alloc_ucontext_resp_mask { |
| MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0, |
| }; |
| |
| struct mlx5_ib_alloc_ucontext_resp { |
| __u32 qp_tab_size; |
| __u32 bf_reg_size; |
| __u32 tot_uuars; |
| __u32 cache_line_size; |
| __u16 max_sq_desc_sz; |
| __u16 max_rq_desc_sz; |
| __u32 max_send_wqebb; |
| __u32 max_recv_wr; |
| __u32 max_srq_recv_wr; |
| __u16 num_ports; |
| __u16 reserved1; |
| __u32 comp_mask; |
| __u32 response_length; |
| __u8 cqe_version; |
| __u8 reserved2; |
| __u16 reserved3; |
| __u64 hca_core_clock_offset; |
| }; |
| |
| struct mlx5_ib_alloc_pd_resp { |
| __u32 pdn; |
| }; |
| |
| struct mlx5_ib_create_cq { |
| __u64 buf_addr; |
| __u64 db_addr; |
| __u32 cqe_size; |
| __u32 reserved; /* explicit padding (optional on i386) */ |
| }; |
| |
| struct mlx5_ib_create_cq_resp { |
| __u32 cqn; |
| __u32 reserved; |
| }; |
| |
| struct mlx5_ib_resize_cq { |
| __u64 buf_addr; |
| __u16 cqe_size; |
| __u16 reserved0; |
| __u32 reserved1; |
| }; |
| |
| struct mlx5_ib_create_srq { |
| __u64 buf_addr; |
| __u64 db_addr; |
| __u32 flags; |
| __u32 reserved0; /* explicit padding (optional on i386) */ |
| __u32 uidx; |
| __u32 reserved1; |
| }; |
| |
| struct mlx5_ib_create_srq_resp { |
| __u32 srqn; |
| __u32 reserved; |
| }; |
| |
| struct mlx5_ib_create_qp { |
| __u64 buf_addr; |
| __u64 db_addr; |
| __u32 sq_wqe_count; |
| __u32 rq_wqe_count; |
| __u32 rq_wqe_shift; |
| __u32 flags; |
| __u32 uidx; |
| __u32 reserved0; |
| __u64 sq_buf_addr; |
| }; |
| |
| struct mlx5_ib_create_qp_resp { |
| __u32 uuar_index; |
| }; |
| |
| static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext, |
| struct mlx5_ib_create_qp *ucmd, |
| int inlen, |
| u32 *user_index) |
| { |
| u8 cqe_version = ucontext->cqe_version; |
| |
| if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) && |
| !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) |
| return 0; |
| |
| if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) != |
| !!cqe_version)) |
| return -EINVAL; |
| |
| return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); |
| } |
| |
| static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext, |
| struct mlx5_ib_create_srq *ucmd, |
| int inlen, |
| u32 *user_index) |
| { |
| u8 cqe_version = ucontext->cqe_version; |
| |
| if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) && |
| !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) |
| return 0; |
| |
| if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) != |
| !!cqe_version)) |
| return -EINVAL; |
| |
| return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); |
| } |
| #endif /* MLX5_IB_USER_H */ |