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34 #ifndef RTE_PMD_MLX5_PRM_H_
35 #define RTE_PMD_MLX5_PRM_H_
38 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
40 #pragma GCC diagnostic ignored "-Wpedantic"
42 #include <infiniband/mlx5_hw.h>
44 #pragma GCC diagnostic error "-Wpedantic"
47 #include "mlx5_autoconf.h"
49 /* Get CQE owner bit. */
50 #define MLX5_CQE_OWNER(op_own) ((op_own) & MLX5_CQE_OWNER_MASK)
53 #define MLX5_CQE_FORMAT(op_own) (((op_own) & MLX5E_CQE_FORMAT_MASK) >> 2)
56 #define MLX5_CQE_OPCODE(op_own) (((op_own) & 0xf0) >> 4)
58 /* Get CQE solicited event. */
59 #define MLX5_CQE_SE(op_own) (((op_own) >> 1) & 1)
61 /* Invalidate a CQE. */
62 #define MLX5_CQE_INVALIDATE (MLX5_CQE_INVALID << 4)
64 /* CQE value to inform that VLAN is stripped. */
65 #define MLX5_CQE_VLAN_STRIPPED 0x1
67 /* Maximum number of packets a multi-packet WQE can handle. */
68 #define MLX5_MPW_DSEG_MAX 5
70 /* Room for inline data in regular work queue element. */
71 #define MLX5_WQE64_INL_DATA 12
73 /* Room for inline data in multi-packet WQE. */
74 #define MLX5_MWQE64_INL_DATA 28
76 #ifndef HAVE_VERBS_MLX5_OPCODE_TSO
77 #define MLX5_OPCODE_TSO MLX5_OPCODE_LSO_MPW /* Compat with OFED 3.3. */
81 #define MLX5_CQE_RX_IPV4_PACKET (1u << 2)
84 #define MLX5_CQE_RX_IPV6_PACKET (1u << 3)
86 /* Outer IPv4 packet. */
87 #define MLX5_CQE_RX_OUTER_IPV4_PACKET (1u << 7)
89 /* Outer IPv6 packet. */
90 #define MLX5_CQE_RX_OUTER_IPV6_PACKET (1u << 8)
92 /* Tunnel packet bit in the CQE. */
93 #define MLX5_CQE_RX_TUNNEL_PACKET (1u << 4)
95 /* Outer IP checksum OK. */
96 #define MLX5_CQE_RX_OUTER_IP_CSUM_OK (1u << 5)
98 /* Outer UDP header and checksum OK. */
99 #define MLX5_CQE_RX_OUTER_TCP_UDP_CSUM_OK (1u << 6)
101 /* Subset of struct mlx5_wqe_eth_seg. */
102 struct mlx5_wqe_eth_seg_small {
108 uint16_t inline_hdr_sz;
112 struct mlx5_wqe_regular {
114 struct mlx5_wqe_ctrl_seg ctrl;
117 struct mlx5_wqe_eth_seg eseg;
118 struct mlx5_wqe_data_seg dseg;
122 struct mlx5_wqe_inl {
124 struct mlx5_wqe_ctrl_seg ctrl;
127 struct mlx5_wqe_eth_seg eseg;
129 uint8_t data[MLX5_WQE64_INL_DATA];
132 /* Multi-packet WQE. */
133 struct mlx5_wqe_mpw {
135 struct mlx5_wqe_ctrl_seg ctrl;
138 struct mlx5_wqe_eth_seg_small eseg;
139 struct mlx5_wqe_data_seg dseg[2];
142 /* Multi-packet WQE with inline. */
143 struct mlx5_wqe_mpw_inl {
145 struct mlx5_wqe_ctrl_seg ctrl;
148 struct mlx5_wqe_eth_seg_small eseg;
150 uint8_t data[MLX5_MWQE64_INL_DATA];
153 /* Union of all WQE types. */
155 struct mlx5_wqe_regular wqe;
156 struct mlx5_wqe_inl inl;
157 struct mlx5_wqe_mpw mpw;
158 struct mlx5_wqe_mpw_inl mpw_inl;
162 /* MPW session status. */
163 enum mlx5_mpw_state {
164 MLX5_MPW_STATE_OPENED,
165 MLX5_MPW_INL_STATE_OPENED,
166 MLX5_MPW_STATE_CLOSED,
169 /* MPW session descriptor. */
171 enum mlx5_mpw_state state;
174 unsigned int total_len;
175 volatile union mlx5_wqe *wqe;
177 volatile struct mlx5_wqe_data_seg *dseg[MLX5_MPW_DSEG_MAX];
178 volatile uint8_t *raw;
182 /* CQ element structure - should be equal to the cache line size */
184 #if (RTE_CACHE_LINE_SIZE == 128)
187 struct mlx5_cqe64 cqe64;
190 #endif /* RTE_PMD_MLX5_PRM_H_ */