-/*-
- * BSD LICENSE
- *
- * Copyright 2016 6WIND S.A.
- * Copyright 2016 Mellanox.
- *
- * 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.
- * * Neither the name of 6WIND S.A. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016 6WIND S.A.
+ * Copyright 2016 Mellanox.
*/
#ifndef RTE_PMD_MLX5_PRM_H_
#define RTE_PMD_MLX5_PRM_H_
+#include <assert.h>
+
/* Verbs header. */
/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
#ifdef PEDANTIC
-#pragma GCC diagnostic ignored "-pedantic"
+#pragma GCC diagnostic ignored "-Wpedantic"
#endif
-#include <infiniband/mlx5_hw.h>
+#include <infiniband/mlx5dv.h>
#ifdef PEDANTIC
-#pragma GCC diagnostic error "-pedantic"
+#pragma GCC diagnostic error "-Wpedantic"
#endif
+#include <rte_vect.h>
+#include "mlx5_autoconf.h"
+
/* Get CQE owner bit. */
#define MLX5_CQE_OWNER(op_own) ((op_own) & MLX5_CQE_OWNER_MASK)
/* Invalidate a CQE. */
#define MLX5_CQE_INVALIDATE (MLX5_CQE_INVALID << 4)
-/* CQE value to inform that VLAN is stripped. */
-#define MLX5_CQE_VLAN_STRIPPED 0x1
-
/* Maximum number of packets a multi-packet WQE can handle. */
#define MLX5_MPW_DSEG_MAX 5
-/* Room for inline data in regular work queue element. */
-#define MLX5_WQE64_INL_DATA 12
+/* WQE DWORD size */
+#define MLX5_WQE_DWORD_SIZE 16
+
+/* WQE size */
+#define MLX5_WQE_SIZE (4 * MLX5_WQE_DWORD_SIZE)
+
+/* Max size of a WQE session. */
+#define MLX5_WQE_SIZE_MAX 960U
+
+/* Compute the number of DS. */
+#define MLX5_WQE_DS(n) \
+ (((n) + MLX5_WQE_DWORD_SIZE - 1) / MLX5_WQE_DWORD_SIZE)
/* Room for inline data in multi-packet WQE. */
#define MLX5_MWQE64_INL_DATA 28
+/* Default minimum number of Tx queues for inlining packets. */
+#define MLX5_EMPW_MIN_TXQS 8
+
+/* Default max packet length to be inlined. */
+#define MLX5_EMPW_MAX_INLINE_LEN (4U * MLX5_WQE_SIZE)
+
+
+#define MLX5_OPC_MOD_ENHANCED_MPSW 0
+#define MLX5_OPCODE_ENHANCED_MPSW 0x29
+
+/* CQE value to inform that VLAN is stripped. */
+#define MLX5_CQE_VLAN_STRIPPED (1u << 0)
+
+/* IPv4 options. */
+#define MLX5_CQE_RX_IP_EXT_OPTS_PACKET (1u << 1)
+
+/* IPv6 packet. */
+#define MLX5_CQE_RX_IPV6_PACKET (1u << 2)
+
+/* IPv4 packet. */
+#define MLX5_CQE_RX_IPV4_PACKET (1u << 3)
+
+/* TCP packet. */
+#define MLX5_CQE_RX_TCP_PACKET (1u << 4)
+
+/* UDP packet. */
+#define MLX5_CQE_RX_UDP_PACKET (1u << 5)
+
+/* IP is fragmented. */
+#define MLX5_CQE_RX_IP_FRAG_PACKET (1u << 7)
+
+/* L2 header is valid. */
+#define MLX5_CQE_RX_L2_HDR_VALID (1u << 8)
+
+/* L3 header is valid. */
+#define MLX5_CQE_RX_L3_HDR_VALID (1u << 9)
+
+/* L4 header is valid. */
+#define MLX5_CQE_RX_L4_HDR_VALID (1u << 10)
+
+/* Outer packet, 0 IPv4, 1 IPv6. */
+#define MLX5_CQE_RX_OUTER_PACKET (1u << 1)
+
+/* Tunnel packet bit in the CQE. */
+#define MLX5_CQE_RX_TUNNEL_PACKET (1u << 0)
+
+/* Inner L3 checksum offload (Tunneled packets only). */
+#define MLX5_ETH_WQE_L3_INNER_CSUM (1u << 4)
+
+/* Inner L4 checksum offload (Tunneled packets only). */
+#define MLX5_ETH_WQE_L4_INNER_CSUM (1u << 5)
+
+/* Is flow mark valid. */
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+#define MLX5_FLOW_MARK_IS_VALID(val) ((val) & 0xffffff00)
+#else
+#define MLX5_FLOW_MARK_IS_VALID(val) ((val) & 0xffffff)
+#endif
+
+/* INVALID is used by packets matching no flow rules. */
+#define MLX5_FLOW_MARK_INVALID 0
+
+/* Maximum allowed value to mark a packet. */
+#define MLX5_FLOW_MARK_MAX 0xfffff0
+
+/* Default mark value used when none is provided. */
+#define MLX5_FLOW_MARK_DEFAULT 0xffffff
+
+/* Maximum number of DS in WQE. */
+#define MLX5_DSEG_MAX 63
+
/* Subset of struct mlx5_wqe_eth_seg. */
struct mlx5_wqe_eth_seg_small {
uint32_t rsvd0;
uint16_t mss;
uint32_t rsvd2;
uint16_t inline_hdr_sz;
-};
+ uint8_t inline_hdr[2];
+} __rte_aligned(MLX5_WQE_DWORD_SIZE);
-/* Regular WQE. */
-struct mlx5_wqe_regular {
- union {
- struct mlx5_wqe_ctrl_seg ctrl;
- uint32_t data[4];
- } ctrl;
- struct mlx5_wqe_eth_seg eseg;
- struct mlx5_wqe_data_seg dseg;
-} __rte_aligned(64);
-
-/* Inline WQE. */
-struct mlx5_wqe_inl {
- union {
- struct mlx5_wqe_ctrl_seg ctrl;
- uint32_t data[4];
- } ctrl;
- struct mlx5_wqe_eth_seg eseg;
+struct mlx5_wqe_inl_small {
uint32_t byte_cnt;
- uint8_t data[MLX5_WQE64_INL_DATA];
-} __rte_aligned(64);
+ uint8_t raw;
+} __rte_aligned(MLX5_WQE_DWORD_SIZE);
-/* Multi-packet WQE. */
-struct mlx5_wqe_mpw {
- union {
- struct mlx5_wqe_ctrl_seg ctrl;
- uint32_t data[4];
- } ctrl;
- struct mlx5_wqe_eth_seg_small eseg;
- struct mlx5_wqe_data_seg dseg[2];
-} __rte_aligned(64);
+struct mlx5_wqe_ctrl {
+ uint32_t ctrl0;
+ uint32_t ctrl1;
+ uint32_t ctrl2;
+ uint32_t ctrl3;
+} __rte_aligned(MLX5_WQE_DWORD_SIZE);
-/* Multi-packet WQE with inline. */
-struct mlx5_wqe_mpw_inl {
- union {
- struct mlx5_wqe_ctrl_seg ctrl;
- uint32_t data[4];
- } ctrl;
+/* Small common part of the WQE. */
+struct mlx5_wqe {
+ uint32_t ctrl[4];
struct mlx5_wqe_eth_seg_small eseg;
- uint32_t byte_cnt;
- uint8_t data[MLX5_MWQE64_INL_DATA];
-} __rte_aligned(64);
-
-/* Union of all WQE types. */
-union mlx5_wqe {
- struct mlx5_wqe_regular wqe;
- struct mlx5_wqe_inl inl;
- struct mlx5_wqe_mpw mpw;
- struct mlx5_wqe_mpw_inl mpw_inl;
- uint8_t data[64];
+};
+
+/* Vectorize WQE header. */
+struct mlx5_wqe_v {
+ rte_v128u32_t ctrl;
+ rte_v128u32_t eseg;
+};
+
+/* WQE. */
+struct mlx5_wqe64 {
+ struct mlx5_wqe hdr;
+ uint8_t raw[32];
+} __rte_aligned(MLX5_WQE_SIZE);
+
+/* MPW mode. */
+enum mlx5_mpw_mode {
+ MLX5_MPW_DISABLED,
+ MLX5_MPW,
+ MLX5_MPW_ENHANCED, /* Enhanced Multi-Packet Send WQE, a.k.a MPWv2. */
};
/* MPW session status. */
enum mlx5_mpw_state {
MLX5_MPW_STATE_OPENED,
MLX5_MPW_INL_STATE_OPENED,
+ MLX5_MPW_ENHANCED_STATE_OPENED,
MLX5_MPW_STATE_CLOSED,
};
unsigned int pkts_n;
unsigned int len;
unsigned int total_len;
- volatile union mlx5_wqe *wqe;
+ volatile struct mlx5_wqe *wqe;
union {
volatile struct mlx5_wqe_data_seg *dseg[MLX5_MPW_DSEG_MAX];
volatile uint8_t *raw;
#if (RTE_CACHE_LINE_SIZE == 128)
uint8_t padding[64];
#endif
- struct mlx5_cqe64 cqe64;
+ uint8_t pkt_info;
+ uint8_t rsvd0[11];
+ uint32_t rx_hash_res;
+ uint8_t rx_hash_type;
+ uint8_t rsvd1[11];
+ uint16_t hdr_type_etc;
+ uint16_t vlan_info;
+ uint8_t rsvd2[12];
+ uint32_t byte_cnt;
+ uint64_t timestamp;
+ uint32_t sop_drop_qpn;
+ uint16_t wqe_counter;
+ uint8_t rsvd4;
+ uint8_t op_own;
+};
+
+/* Adding direct verbs to data-path. */
+
+/* CQ sequence number mask. */
+#define MLX5_CQ_SQN_MASK 0x3
+
+/* CQ sequence number index. */
+#define MLX5_CQ_SQN_OFFSET 28
+
+/* CQ doorbell index mask. */
+#define MLX5_CI_MASK 0xffffff
+
+/* CQ doorbell offset. */
+#define MLX5_CQ_ARM_DB 1
+
+/* CQ doorbell offset*/
+#define MLX5_CQ_DOORBELL 0x20
+
+/* CQE format value. */
+#define MLX5_COMPRESSED 0x3
+
+/* CQE format mask. */
+#define MLX5E_CQE_FORMAT_MASK 0xc
+
+/* MPW opcode. */
+#define MLX5_OPC_MOD_MPW 0x01
+
+/* Compressed Rx CQE structure. */
+struct mlx5_mini_cqe8 {
+ union {
+ uint32_t rx_hash_result;
+ uint32_t checksum;
+ struct {
+ uint16_t wqe_counter;
+ uint8_t s_wqe_opcode;
+ uint8_t reserved;
+ } s_wqe_info;
+ };
+ uint32_t byte_cnt;
};
+/**
+ * Convert a user mark to flow mark.
+ *
+ * @param val
+ * Mark value to convert.
+ *
+ * @return
+ * Converted mark value.
+ */
+static inline uint32_t
+mlx5_flow_mark_set(uint32_t val)
+{
+ uint32_t ret;
+
+ /*
+ * Add one to the user value to differentiate un-marked flows from
+ * marked flows, if the ID is equal to MLX5_FLOW_MARK_DEFAULT it
+ * remains untouched.
+ */
+ if (val != MLX5_FLOW_MARK_DEFAULT)
+ ++val;
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+ /*
+ * Mark is 24 bits (minus reserved values) but is stored on a 32 bit
+ * word, byte-swapped by the kernel on little-endian systems. In this
+ * case, left-shifting the resulting big-endian value ensures the
+ * least significant 24 bits are retained when converting it back.
+ */
+ ret = rte_cpu_to_be_32(val) >> 8;
+#else
+ ret = val;
+#endif
+ return ret;
+}
+
+/**
+ * Convert a mark to user mark.
+ *
+ * @param val
+ * Mark value to convert.
+ *
+ * @return
+ * Converted mark value.
+ */
+static inline uint32_t
+mlx5_flow_mark_get(uint32_t val)
+{
+ /*
+ * Subtract one from the retrieved value. It was added by
+ * mlx5_flow_mark_set() to distinguish unmarked flows.
+ */
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+ return (val >> 8) - 1;
+#else
+ return val - 1;
+#endif
+}
+
#endif /* RTE_PMD_MLX5_PRM_H_ */
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