diff options
Diffstat (limited to 'src/plugins/rdma/rdma_mlx5dv.h')
| -rw-r--r-- | src/plugins/rdma/rdma_mlx5dv.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/plugins/rdma/rdma_mlx5dv.h b/src/plugins/rdma/rdma_mlx5dv.h new file mode 100644 index 00000000000..43d9002d050 --- /dev/null +++ b/src/plugins/rdma/rdma_mlx5dv.h @@ -0,0 +1,156 @@ +/* + *------------------------------------------------------------------ + * Copyright (c) 2020 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef _RDMA_MLX5DV_H_ +#define _RDMA_MLX5DV_H_ + +#undef always_inline +#include <infiniband/mlx5dv.h> +#define always_inline static_always_inline + +/* CQE flags - bits 16-31 of qword at offset 0x1c */ +#define CQE_FLAG_L4_OK 10 +#define CQE_FLAG_L3_OK 9 +#define CQE_FLAG_L2_OK 8 +#define CQE_FLAG_IP_FRAG 7 +#define CQE_FLAG_L4_HDR_TYPE(f) (((f) >> 4) & 7) +#define CQE_FLAG_L3_HDR_TYPE_SHIFT (2) +#define CQE_FLAG_L3_HDR_TYPE_MASK (3 << CQE_FLAG_L3_HDR_TYPE_SHIFT) +#define CQE_FLAG_L3_HDR_TYPE(f) (((f) & CQE_FLAG_L3_HDR_TYPE_MASK) >> CQE_FLAG_L3_HDR_TYPE_SHIFT) +#define CQE_FLAG_L3_HDR_TYPE_IP4 1 +#define CQE_FLAG_L3_HDR_TYPE_IP6 2 +#define CQE_FLAG_IP_EXT_OPTS 1 + +typedef struct +{ + struct + { + u8 pad1[28]; + u16 flags; + u8 pad2[14]; + union + { + u32 byte_cnt; + u32 mini_cqe_num; + }; + u8 pad3[15]; + u8 opcode_cqefmt_se_owner; + }; +} mlx5dv_cqe_t; + +STATIC_ASSERT_SIZEOF (mlx5dv_cqe_t, 64); + +typedef struct +{ + union + { + u32 checksum; + u32 rx_hash_result; + }; + u32 byte_count; +} mlx5dv_mini_cqe_t; + +typedef struct +{ + u64 dsz_and_lkey; + u64 addr; +} mlx5dv_rwq_t; + +#define foreach_cqe_rx_field \ + _(0x1c, 26, 26, l4_ok) \ + _(0x1c, 25, 25, l3_ok) \ + _(0x1c, 24, 24, l2_ok) \ + _(0x1c, 23, 23, ip_frag) \ + _(0x1c, 22, 20, l4_hdr_type) \ + _(0x1c, 19, 18, l3_hdr_type) \ + _(0x1c, 17, 17, ip_ext_opts) \ + _(0x1c, 16, 16, cv) \ + _(0x2c, 31, 0, byte_cnt) \ + _(0x30, 63, 0, timestamp) \ + _(0x38, 31, 24, rx_drop_counter) \ + _(0x38, 23, 0, flow_tag) \ + _(0x3c, 31, 16, wqe_counter) \ + _(0x3c, 15, 8, signature) \ + _(0x3c, 7, 4, opcode) \ + _(0x3c, 3, 2, cqe_format) \ + _(0x3c, 1, 1, sc) \ + _(0x3c, 0, 0, owner) + + +/* inline functions */ + +static inline u32 +mlx5_get_u32 (void *start, int offset) +{ + return clib_net_to_host_u32 (*(u32 *) (((u8 *) start) + offset)); +} + +static inline u64 +mlx5_get_u64 (void *start, int offset) +{ + return clib_net_to_host_u64 (*(u64 *) (((u8 *) start) + offset)); +} + +static inline void +mlx5_set_u32 (void *start, int offset, u32 value) +{ + (*(u32 *) (((u8 *) start) + offset)) = clib_host_to_net_u32 (value); +} + +static inline void +mlx5_set_u64 (void *start, int offset, u64 value) +{ + (*(u64 *) (((u8 *) start) + offset)) = clib_host_to_net_u64 (value); +} + +static inline void +mlx5_set_bits (void *start, int offset, int first, int last, u32 value) +{ + u32 mask = (1 << (first - last + 1)) - 1; + u32 old = mlx5_get_u32 (start, offset); + if ((last == 0) && (first == 31)) + { + mlx5_set_u32 (start, offset, value); + return; + } + ASSERT (value == (value & mask)); + value &= mask; + old &= ~(mask << last); + mlx5_set_u32 (start, offset, old | value << last); +} + +static inline u32 +mlx5_get_bits (void *start, int offset, int first, int last) +{ + u32 value = mlx5_get_u32 (start, offset); + if ((last == 0) && (first == 31)) + return value; + value >>= last; + value &= (1 << (first - last + 1)) - 1; + return value; +} + + +#endif /* RDMA_MLX5DV_H */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |