/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2015 6WIND S.A.
- * Copyright 2015 Mellanox Technologies, Ltd
+ * Copyright 2015-2019 Mellanox Technologies, Ltd
*/
-#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
-/* Verbs header. */
-/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
-#ifdef PEDANTIC
-#pragma GCC diagnostic ignored "-Wpedantic"
-#endif
-#include <infiniband/verbs.h>
-#include <infiniband/mlx5dv.h>
-#ifdef PEDANTIC
-#pragma GCC diagnostic error "-Wpedantic"
-#endif
-
#include <rte_mbuf.h>
#include <rte_mempool.h>
#include <rte_prefetch.h>
#include <rte_branch_prediction.h>
#include <rte_ether.h>
#include <rte_cycles.h>
+#include <rte_flow.h>
+
+#include <mlx5_prm.h>
+#include <mlx5_common.h>
+#include "mlx5_autoconf.h"
+#include "mlx5_defs.h"
#include "mlx5.h"
+#include "mlx5_mr.h"
#include "mlx5_utils.h"
#include "mlx5_rxtx.h"
-#include "mlx5_autoconf.h"
-#include "mlx5_defs.h"
-#include "mlx5_prm.h"
-
-static __rte_always_inline uint32_t
-rxq_cq_to_pkt_type(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe);
-
-static __rte_always_inline int
-mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
- uint16_t cqe_cnt, volatile struct mlx5_mini_cqe8 **mcqe);
-
-static __rte_always_inline uint32_t
-rxq_cq_to_ol_flags(volatile struct mlx5_cqe *cqe);
-
-static __rte_always_inline void
-rxq_cq_to_mbuf(struct mlx5_rxq_data *rxq, struct rte_mbuf *pkt,
- volatile struct mlx5_cqe *cqe, uint32_t rss_hash_res);
-
-static __rte_always_inline void
-mprq_buf_replace(struct mlx5_rxq_data *rxq, uint16_t rq_idx);
-
-static int
-mlx5_queue_state_modify(struct rte_eth_dev *dev,
- struct mlx5_mp_arg_queue_state_modify *sm);
+#include "mlx5_rx.h"
+#include "mlx5_tx.h"
+
+/* static asserts */
+static_assert(MLX5_CQE_STATUS_HW_OWN < 0, "Must be negative value");
+static_assert(MLX5_CQE_STATUS_SW_OWN < 0, "Must be negative value");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(rte_v128u32_t)),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(struct rte_vlan_hdr) +
+ 2 * RTE_ETHER_ADDR_LEN),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(rte_v128u32_t)),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(struct rte_vlan_hdr) +
+ 2 * RTE_ETHER_ADDR_LEN),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(rte_v128u32_t)),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_ESEG_MIN_INLINE_SIZE ==
+ (sizeof(uint16_t) +
+ sizeof(struct rte_vlan_hdr) +
+ 2 * RTE_ETHER_ADDR_LEN),
+ "invalid Ethernet Segment data size");
+static_assert(MLX5_DSEG_MIN_INLINE_SIZE ==
+ (2 * RTE_ETHER_ADDR_LEN),
+ "invalid Data Segment data size");
+static_assert(MLX5_EMPW_MIN_PACKETS >= 2, "invalid min size");
+static_assert(MLX5_EMPW_MIN_PACKETS >= 2, "invalid min size");
+static_assert((sizeof(struct rte_vlan_hdr) +
+ sizeof(struct rte_ether_hdr)) ==
+ MLX5_ESEG_MIN_INLINE_SIZE,
+ "invalid min inline data size");
+static_assert(MLX5_WQE_SIZE_MAX / MLX5_WSEG_SIZE <=
+ MLX5_DSEG_MAX, "invalid WQE max size");
+static_assert(MLX5_WQE_CSEG_SIZE == MLX5_WSEG_SIZE,
+ "invalid WQE Control Segment size");
+static_assert(MLX5_WQE_ESEG_SIZE == MLX5_WSEG_SIZE,
+ "invalid WQE Ethernet Segment size");
+static_assert(MLX5_WQE_DSEG_SIZE == MLX5_WSEG_SIZE,
+ "invalid WQE Data Segment size");
+static_assert(MLX5_WQE_SIZE == 4 * MLX5_WSEG_SIZE,
+ "invalid WQE size");
uint32_t mlx5_ptype_table[] __rte_cache_aligned = {
[0xff] = RTE_PTYPE_ALL_MASK, /* Last entry for errored packet. */
uint8_t mlx5_cksum_table[1 << 10] __rte_cache_aligned;
uint8_t mlx5_swp_types_table[1 << 10] __rte_cache_aligned;
+uint64_t rte_net_mlx5_dynf_inline_mask;
+
/**
* Build a table to translate Rx completion flags to packet type.
*
/*
* The index should have:
- * bit[0] = PKT_TX_TCP_SEG
- * bit[2:3] = PKT_TX_UDP_CKSUM, PKT_TX_TCP_CKSUM
- * bit[4] = PKT_TX_IP_CKSUM
- * bit[8] = PKT_TX_OUTER_IP_CKSUM
+ * bit[0] = RTE_MBUF_F_TX_TCP_SEG
+ * bit[2:3] = RTE_MBUF_F_TX_UDP_CKSUM, RTE_MBUF_F_TX_TCP_CKSUM
+ * bit[4] = RTE_MBUF_F_TX_IP_CKSUM
+ * bit[8] = RTE_MBUF_F_TX_OUTER_IP_CKSUM
* bit[9] = tunnel
*/
for (i = 0; i < RTE_DIM(mlx5_cksum_table); ++i) {
/*
* The index should have:
- * bit[0:1] = PKT_TX_L4_MASK
- * bit[4] = PKT_TX_IPV6
- * bit[8] = PKT_TX_OUTER_IPV6
- * bit[9] = PKT_TX_OUTER_UDP
+ * bit[0:1] = RTE_MBUF_F_TX_L4_MASK
+ * bit[4] = RTE_MBUF_F_TX_IPV6
+ * bit[8] = RTE_MBUF_F_TX_OUTER_IPV6
+ * bit[9] = RTE_MBUF_F_TX_OUTER_UDP
*/
for (i = 0; i < RTE_DIM(mlx5_swp_types_table); ++i) {
v = 0;
v |= MLX5_ETH_WQE_L4_OUTER_UDP;
if (i & (1 << 4))
v |= MLX5_ETH_WQE_L3_INNER_IPV6;
- if ((i & 3) == (PKT_TX_UDP_CKSUM >> 52))
+ if ((i & 3) == (RTE_MBUF_F_TX_UDP_CKSUM >> 52))
v |= MLX5_ETH_WQE_L4_INNER_UDP;
mlx5_swp_types_table[i] = v;
}
}
-/**
- * Return the size of tailroom of WQ.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param addr
- * Pointer to tail of WQ.
- *
- * @return
- * Size of tailroom.
- */
-static inline size_t
-tx_mlx5_wq_tailroom(struct mlx5_txq_data *txq, void *addr)
-{
- size_t tailroom;
- tailroom = (uintptr_t)(txq->wqes) +
- (1 << txq->wqe_n) * MLX5_WQE_SIZE -
- (uintptr_t)addr;
- return tailroom;
-}
-
-/**
- * Copy data to tailroom of circular queue.
- *
- * @param dst
- * Pointer to destination.
- * @param src
- * Pointer to source.
- * @param n
- * Number of bytes to copy.
- * @param base
- * Pointer to head of queue.
- * @param tailroom
- * Size of tailroom from dst.
- *
- * @return
- * Pointer after copied data.
- */
-static inline void *
-mlx5_copy_to_wq(void *dst, const void *src, size_t n,
- void *base, size_t tailroom)
-{
- void *ret;
-
- if (n > tailroom) {
- rte_memcpy(dst, src, tailroom);
- rte_memcpy(base, (void *)((uintptr_t)src + tailroom),
- n - tailroom);
- ret = (uint8_t *)base + n - tailroom;
- } else {
- rte_memcpy(dst, src, n);
- ret = (n == tailroom) ? base : (uint8_t *)dst + n;
- }
- return ret;
-}
-
-/**
- * Inline TSO headers into WQE.
- *
- * @return
- * 0 on success, negative errno value on failure.
- */
-static int
-inline_tso(struct mlx5_txq_data *txq, struct rte_mbuf *buf,
- uint32_t *length,
- uintptr_t *addr,
- uint16_t *pkt_inline_sz,
- uint8_t **raw,
- uint16_t *max_wqe,
- uint16_t *tso_segsz,
- uint16_t *tso_header_sz)
-{
- uintptr_t end = (uintptr_t)(((uintptr_t)txq->wqes) +
- (1 << txq->wqe_n) * MLX5_WQE_SIZE);
- unsigned int copy_b;
- uint8_t vlan_sz = (buf->ol_flags & PKT_TX_VLAN_PKT) ? 4 : 0;
- const uint8_t tunneled = txq->tunnel_en && (buf->ol_flags &
- PKT_TX_TUNNEL_MASK);
- uint16_t n_wqe;
-
- *tso_segsz = buf->tso_segsz;
- *tso_header_sz = buf->l2_len + vlan_sz + buf->l3_len + buf->l4_len;
- if (unlikely(*tso_segsz == 0 || *tso_header_sz == 0)) {
- txq->stats.oerrors++;
- return -EINVAL;
- }
- if (tunneled)
- *tso_header_sz += buf->outer_l2_len + buf->outer_l3_len;
- /* First seg must contain all TSO headers. */
- if (unlikely(*tso_header_sz > MLX5_MAX_TSO_HEADER) ||
- *tso_header_sz > DATA_LEN(buf)) {
- txq->stats.oerrors++;
- return -EINVAL;
- }
- copy_b = *tso_header_sz - *pkt_inline_sz;
- if (!copy_b || ((end - (uintptr_t)*raw) < copy_b))
- return -EAGAIN;
- n_wqe = (MLX5_WQE_DS(copy_b) - 1 + 3) / 4;
- if (unlikely(*max_wqe < n_wqe))
- return -EINVAL;
- *max_wqe -= n_wqe;
- rte_memcpy((void *)*raw, (void *)*addr, copy_b);
- *length -= copy_b;
- *addr += copy_b;
- copy_b = MLX5_WQE_DS(copy_b) * MLX5_WQE_DWORD_SIZE;
- *pkt_inline_sz += copy_b;
- *raw += copy_b;
- return 0;
-}
-
-/**
- * DPDK callback to check the status of a tx descriptor.
- *
- * @param tx_queue
- * The tx queue.
- * @param[in] offset
- * The index of the descriptor in the ring.
- *
- * @return
- * The status of the tx descriptor.
- */
-int
-mlx5_tx_descriptor_status(void *tx_queue, uint16_t offset)
-{
- struct mlx5_txq_data *txq = tx_queue;
- uint16_t used;
-
- mlx5_tx_complete(txq);
- used = txq->elts_head - txq->elts_tail;
- if (offset < used)
- return RTE_ETH_TX_DESC_FULL;
- return RTE_ETH_TX_DESC_DONE;
-}
-
-/**
- * Internal function to compute the number of used descriptors in an RX queue
- *
- * @param rxq
- * The Rx queue.
- *
- * @return
- * The number of used rx descriptor.
- */
-static uint32_t
-rx_queue_count(struct mlx5_rxq_data *rxq)
-{
- struct rxq_zip *zip = &rxq->zip;
- volatile struct mlx5_cqe *cqe;
- const unsigned int cqe_n = (1 << rxq->cqe_n);
- const unsigned int cqe_cnt = cqe_n - 1;
- unsigned int cq_ci;
- unsigned int used;
-
- /* if we are processing a compressed cqe */
- if (zip->ai) {
- used = zip->cqe_cnt - zip->ca;
- cq_ci = zip->cq_ci;
- } else {
- used = 0;
- cq_ci = rxq->cq_ci;
- }
- cqe = &(*rxq->cqes)[cq_ci & cqe_cnt];
- while (check_cqe(cqe, cqe_n, cq_ci) != MLX5_CQE_STATUS_HW_OWN) {
- int8_t op_own;
- unsigned int n;
-
- op_own = cqe->op_own;
- if (MLX5_CQE_FORMAT(op_own) == MLX5_COMPRESSED)
- n = rte_be_to_cpu_32(cqe->byte_cnt);
- else
- n = 1;
- cq_ci += n;
- used += n;
- cqe = &(*rxq->cqes)[cq_ci & cqe_cnt];
- }
- used = RTE_MIN(used, (1U << rxq->elts_n) - 1);
- return used;
-}
-
-/**
- * DPDK callback to check the status of a rx descriptor.
- *
- * @param rx_queue
- * The Rx queue.
- * @param[in] offset
- * The index of the descriptor in the ring.
- *
- * @return
- * The status of the tx descriptor.
- */
-int
-mlx5_rx_descriptor_status(void *rx_queue, uint16_t offset)
-{
- struct mlx5_rxq_data *rxq = rx_queue;
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of(rxq, struct mlx5_rxq_ctrl, rxq);
- struct rte_eth_dev *dev = ETH_DEV(rxq_ctrl->priv);
-
- if (dev->rx_pkt_burst != mlx5_rx_burst) {
- rte_errno = ENOTSUP;
- return -rte_errno;
- }
- if (offset >= (1 << rxq->elts_n)) {
- rte_errno = EINVAL;
- return -rte_errno;
- }
- if (offset < rx_queue_count(rxq))
- return RTE_ETH_RX_DESC_DONE;
- return RTE_ETH_RX_DESC_AVAIL;
-}
-
-/**
- * DPDK callback to get the number of used descriptors in a RX queue
- *
- * @param dev
- * Pointer to the device structure.
- *
- * @param rx_queue_id
- * The Rx queue.
- *
- * @return
- * The number of used rx descriptor.
- * -EINVAL if the queue is invalid
- */
-uint32_t
-mlx5_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
-{
- struct mlx5_priv *priv = dev->data->dev_private;
- struct mlx5_rxq_data *rxq;
-
- if (dev->rx_pkt_burst != mlx5_rx_burst) {
- rte_errno = ENOTSUP;
- return -rte_errno;
- }
- rxq = (*priv->rxqs)[rx_queue_id];
- if (!rxq) {
- rte_errno = EINVAL;
- return -rte_errno;
- }
- return rx_queue_count(rxq);
-}
-
#define MLX5_SYSTEM_LOG_DIR "/var/log"
/**
* Dump debug information to log file.
MKSTR(path, "%s/%s", MLX5_SYSTEM_LOG_DIR, fname);
fd = fopen(path, "a+");
if (!fd) {
- DRV_LOG(WARNING, "cannot open %s for debug dump\n",
- path);
+ DRV_LOG(WARNING, "cannot open %s for debug dump", path);
MKSTR(path2, "./%s", fname);
fd = fopen(path2, "a+");
if (!fd) {
- DRV_LOG(ERR, "cannot open %s for debug dump\n",
- path2);
+ DRV_LOG(ERR, "cannot open %s for debug dump", path2);
return;
}
- DRV_LOG(INFO, "New debug dump in file %s\n", path2);
+ DRV_LOG(INFO, "New debug dump in file %s", path2);
} else {
- DRV_LOG(INFO, "New debug dump in file %s\n", path);
+ DRV_LOG(INFO, "New debug dump in file %s", path);
}
if (hex_title)
rte_hexdump(fd, hex_title, buf, hex_len);
}
/**
- * Move QP from error state to running state and initialize indexes.
- *
- * @param txq_ctrl
- * Pointer to TX queue control structure.
- *
- * @return
- * 0 on success, else -1.
- */
-static int
-tx_recover_qp(struct mlx5_txq_ctrl *txq_ctrl)
-{
- struct mlx5_mp_arg_queue_state_modify sm = {
- .is_wq = 0,
- .queue_id = txq_ctrl->txq.idx,
- };
-
- if (mlx5_queue_state_modify(ETH_DEV(txq_ctrl->priv), &sm))
- return -1;
- txq_ctrl->txq.wqe_ci = 0;
- txq_ctrl->txq.wqe_pi = 0;
- txq_ctrl->txq.elts_comp = 0;
- return 0;
-}
-
-/* Return 1 if the error CQE is signed otherwise, sign it and return 0. */
-static int
-check_err_cqe_seen(volatile struct mlx5_err_cqe *err_cqe)
-{
- static const uint8_t magic[] = "seen";
- int ret = 1;
- unsigned int i;
-
- for (i = 0; i < sizeof(magic); ++i)
- if (!ret || err_cqe->rsvd1[i] != magic[i]) {
- ret = 0;
- err_cqe->rsvd1[i] = magic[i];
- }
- return ret;
-}
-
-/**
- * Handle error CQE.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param error_cqe
- * Pointer to the error CQE.
- *
- * @return
- * The last Tx buffer element to free.
- */
-uint16_t
-mlx5_tx_error_cqe_handle(struct mlx5_txq_data *txq,
- volatile struct mlx5_err_cqe *err_cqe)
-{
- if (err_cqe->syndrome != MLX5_CQE_SYNDROME_WR_FLUSH_ERR) {
- const uint16_t wqe_m = ((1 << txq->wqe_n) - 1);
- struct mlx5_txq_ctrl *txq_ctrl =
- container_of(txq, struct mlx5_txq_ctrl, txq);
- uint16_t new_wqe_pi = rte_be_to_cpu_16(err_cqe->wqe_counter);
- int seen = check_err_cqe_seen(err_cqe);
-
- if (!seen && txq_ctrl->dump_file_n <
- txq_ctrl->priv->config.max_dump_files_num) {
- MKSTR(err_str, "Unexpected CQE error syndrome "
- "0x%02x CQN = %u SQN = %u wqe_counter = %u "
- "wq_ci = %u cq_ci = %u", err_cqe->syndrome,
- txq_ctrl->cqn, txq->qp_num_8s >> 8,
- rte_be_to_cpu_16(err_cqe->wqe_counter),
- txq->wqe_ci, txq->cq_ci);
- MKSTR(name, "dpdk_mlx5_port_%u_txq_%u_index_%u_%u",
- PORT_ID(txq_ctrl->priv), txq->idx,
- txq_ctrl->dump_file_n, (uint32_t)rte_rdtsc());
- mlx5_dump_debug_information(name, NULL, err_str, 0);
- mlx5_dump_debug_information(name, "MLX5 Error CQ:",
- (const void *)((uintptr_t)
- &(*txq->cqes)[0]),
- sizeof(*err_cqe) *
- (1 << txq->cqe_n));
- mlx5_dump_debug_information(name, "MLX5 Error SQ:",
- (const void *)((uintptr_t)
- tx_mlx5_wqe(txq, 0)),
- MLX5_WQE_SIZE *
- (1 << txq->wqe_n));
- txq_ctrl->dump_file_n++;
- }
- if (!seen)
- /*
- * Count errors in WQEs units.
- * Later it can be improved to count error packets,
- * for example, by SQ parsing to find how much packets
- * should be counted for each WQE.
- */
- txq->stats.oerrors += ((txq->wqe_ci & wqe_m) -
- new_wqe_pi) & wqe_m;
- if (tx_recover_qp(txq_ctrl) == 0) {
- txq->cq_ci++;
- /* Release all the remaining buffers. */
- return txq->elts_head;
- }
- /* Recovering failed - try again later on the same WQE. */
- } else {
- txq->cq_ci++;
- }
- /* Do not release buffers. */
- return txq->elts_tail;
-}
-
-/**
- * DPDK callback for TX.
- *
- * @param dpdk_txq
- * Generic pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
-{
- struct mlx5_txq_data *txq = (struct mlx5_txq_data *)dpdk_txq;
- uint16_t elts_head = txq->elts_head;
- const uint16_t elts_n = 1 << txq->elts_n;
- const uint16_t elts_m = elts_n - 1;
- unsigned int i = 0;
- unsigned int j = 0;
- unsigned int k = 0;
- uint16_t max_elts;
- uint16_t max_wqe;
- unsigned int comp;
- volatile struct mlx5_wqe_ctrl *last_wqe = NULL;
- unsigned int segs_n = 0;
- const unsigned int max_inline = txq->max_inline;
- uint64_t addr_64;
-
- if (unlikely(!pkts_n))
- return 0;
- /* Prefetch first packet cacheline. */
- rte_prefetch0(*pkts);
- /* Start processing. */
- mlx5_tx_complete(txq);
- max_elts = (elts_n - (elts_head - txq->elts_tail));
- max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
- if (unlikely(!max_wqe))
- return 0;
- do {
- struct rte_mbuf *buf = *pkts; /* First_seg. */
- uint8_t *raw;
- volatile struct mlx5_wqe_v *wqe = NULL;
- volatile rte_v128u32_t *dseg = NULL;
- uint32_t length;
- unsigned int ds = 0;
- unsigned int sg = 0; /* counter of additional segs attached. */
- uintptr_t addr;
- uint16_t pkt_inline_sz = MLX5_WQE_DWORD_SIZE + 2;
- uint16_t tso_header_sz = 0;
- uint16_t ehdr;
- uint8_t cs_flags;
- uint8_t tso = txq->tso_en && (buf->ol_flags & PKT_TX_TCP_SEG);
- uint32_t swp_offsets = 0;
- uint8_t swp_types = 0;
- rte_be32_t metadata;
- uint16_t tso_segsz = 0;
-#ifdef MLX5_PMD_SOFT_COUNTERS
- uint32_t total_length = 0;
-#endif
- int ret;
-
- segs_n = buf->nb_segs;
- /*
- * Make sure there is enough room to store this packet and
- * that one ring entry remains unused.
- */
- assert(segs_n);
- if (max_elts < segs_n)
- break;
- max_elts -= segs_n;
- sg = --segs_n;
- if (unlikely(--max_wqe == 0))
- break;
- wqe = (volatile struct mlx5_wqe_v *)
- tx_mlx5_wqe(txq, txq->wqe_ci);
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci + 1));
- if (pkts_n - i > 1)
- rte_prefetch0(*(pkts + 1));
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- length = DATA_LEN(buf);
- ehdr = (((uint8_t *)addr)[1] << 8) |
- ((uint8_t *)addr)[0];
-#ifdef MLX5_PMD_SOFT_COUNTERS
- total_length = length;
-#endif
- if (length < (MLX5_WQE_DWORD_SIZE + 2)) {
- txq->stats.oerrors++;
- break;
- }
- /* Update element. */
- (*txq->elts)[elts_head & elts_m] = buf;
- /* Prefetch next buffer data. */
- if (pkts_n - i > 1)
- rte_prefetch0(
- rte_pktmbuf_mtod(*(pkts + 1), volatile void *));
- cs_flags = txq_ol_cksum_to_cs(buf);
- txq_mbuf_to_swp(txq, buf, (uint8_t *)&swp_offsets, &swp_types);
- raw = ((uint8_t *)(uintptr_t)wqe) + 2 * MLX5_WQE_DWORD_SIZE;
- /* Copy metadata from mbuf if valid */
- metadata = buf->ol_flags & PKT_TX_METADATA ? buf->tx_metadata :
- 0;
- /* Replace the Ethernet type by the VLAN if necessary. */
- if (buf->ol_flags & PKT_TX_VLAN_PKT) {
- uint32_t vlan = rte_cpu_to_be_32(0x81000000 |
- buf->vlan_tci);
- unsigned int len = 2 * RTE_ETHER_ADDR_LEN - 2;
-
- addr += 2;
- length -= 2;
- /* Copy Destination and source mac address. */
- memcpy((uint8_t *)raw, ((uint8_t *)addr), len);
- /* Copy VLAN. */
- memcpy((uint8_t *)raw + len, &vlan, sizeof(vlan));
- /* Copy missing two bytes to end the DSeg. */
- memcpy((uint8_t *)raw + len + sizeof(vlan),
- ((uint8_t *)addr) + len, 2);
- addr += len + 2;
- length -= (len + 2);
- } else {
- memcpy((uint8_t *)raw, ((uint8_t *)addr) + 2,
- MLX5_WQE_DWORD_SIZE);
- length -= pkt_inline_sz;
- addr += pkt_inline_sz;
- }
- raw += MLX5_WQE_DWORD_SIZE;
- if (tso) {
- ret = inline_tso(txq, buf, &length,
- &addr, &pkt_inline_sz,
- &raw, &max_wqe,
- &tso_segsz, &tso_header_sz);
- if (ret == -EINVAL) {
- break;
- } else if (ret == -EAGAIN) {
- /* NOP WQE. */
- wqe->ctrl = (rte_v128u32_t){
- rte_cpu_to_be_32(txq->wqe_ci << 8),
- rte_cpu_to_be_32(txq->qp_num_8s | 1),
- rte_cpu_to_be_32
- (MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET),
- 0,
- };
- ds = 1;
-#ifdef MLX5_PMD_SOFT_COUNTERS
- total_length = 0;
-#endif
- k++;
- goto next_wqe;
- }
- }
- /* Inline if enough room. */
- if (max_inline || tso) {
- uint32_t inl = 0;
- uintptr_t end = (uintptr_t)
- (((uintptr_t)txq->wqes) +
- (1 << txq->wqe_n) * MLX5_WQE_SIZE);
- unsigned int inline_room = max_inline *
- RTE_CACHE_LINE_SIZE -
- (pkt_inline_sz - 2) -
- !!tso * sizeof(inl);
- uintptr_t addr_end;
- unsigned int copy_b;
-
-pkt_inline:
- addr_end = RTE_ALIGN_FLOOR(addr + inline_room,
- RTE_CACHE_LINE_SIZE);
- copy_b = (addr_end > addr) ?
- RTE_MIN((addr_end - addr), length) : 0;
- if (copy_b && ((end - (uintptr_t)raw) >
- (copy_b + sizeof(inl)))) {
- /*
- * One Dseg remains in the current WQE. To
- * keep the computation positive, it is
- * removed after the bytes to Dseg conversion.
- */
- uint16_t n = (MLX5_WQE_DS(copy_b) - 1 + 3) / 4;
-
- if (unlikely(max_wqe < n))
- break;
- max_wqe -= n;
- if (tso) {
- assert(inl == 0);
- inl = rte_cpu_to_be_32(copy_b |
- MLX5_INLINE_SEG);
- rte_memcpy((void *)raw,
- (void *)&inl, sizeof(inl));
- raw += sizeof(inl);
- pkt_inline_sz += sizeof(inl);
- }
- rte_memcpy((void *)raw, (void *)addr, copy_b);
- addr += copy_b;
- length -= copy_b;
- pkt_inline_sz += copy_b;
- }
- /*
- * 2 DWORDs consumed by the WQE header + ETH segment +
- * the size of the inline part of the packet.
- */
- ds = 2 + MLX5_WQE_DS(pkt_inline_sz - 2);
- if (length > 0) {
- if (ds % (MLX5_WQE_SIZE /
- MLX5_WQE_DWORD_SIZE) == 0) {
- if (unlikely(--max_wqe == 0))
- break;
- dseg = (volatile rte_v128u32_t *)
- tx_mlx5_wqe(txq, txq->wqe_ci +
- ds / 4);
- } else {
- dseg = (volatile rte_v128u32_t *)
- ((uintptr_t)wqe +
- (ds * MLX5_WQE_DWORD_SIZE));
- }
- goto use_dseg;
- } else if (!segs_n) {
- goto next_pkt;
- } else {
- /*
- * Further inline the next segment only for
- * non-TSO packets.
- */
- if (!tso) {
- raw += copy_b;
- inline_room -= copy_b;
- } else {
- inline_room = 0;
- }
- /* Move to the next segment. */
- --segs_n;
- buf = buf->next;
- assert(buf);
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- length = DATA_LEN(buf);
-#ifdef MLX5_PMD_SOFT_COUNTERS
- total_length += length;
-#endif
- (*txq->elts)[++elts_head & elts_m] = buf;
- goto pkt_inline;
- }
- } else {
- /*
- * No inline has been done in the packet, only the
- * Ethernet Header as been stored.
- */
- dseg = (volatile rte_v128u32_t *)
- ((uintptr_t)wqe + (3 * MLX5_WQE_DWORD_SIZE));
- ds = 3;
-use_dseg:
- /* Add the remaining packet as a simple ds. */
- addr_64 = rte_cpu_to_be_64(addr);
- *dseg = (rte_v128u32_t){
- rte_cpu_to_be_32(length),
- mlx5_tx_mb2mr(txq, buf),
- addr_64,
- addr_64 >> 32,
- };
- ++ds;
- if (!segs_n)
- goto next_pkt;
- }
-next_seg:
- assert(buf);
- assert(ds);
- assert(wqe);
- /*
- * Spill on next WQE when the current one does not have
- * enough room left. Size of WQE must a be a multiple
- * of data segment size.
- */
- assert(!(MLX5_WQE_SIZE % MLX5_WQE_DWORD_SIZE));
- if (!(ds % (MLX5_WQE_SIZE / MLX5_WQE_DWORD_SIZE))) {
- if (unlikely(--max_wqe == 0))
- break;
- dseg = (volatile rte_v128u32_t *)
- tx_mlx5_wqe(txq, txq->wqe_ci + ds / 4);
- rte_prefetch0(tx_mlx5_wqe(txq,
- txq->wqe_ci + ds / 4 + 1));
- } else {
- ++dseg;
- }
- ++ds;
- buf = buf->next;
- assert(buf);
- length = DATA_LEN(buf);
-#ifdef MLX5_PMD_SOFT_COUNTERS
- total_length += length;
-#endif
- /* Store segment information. */
- addr_64 = rte_cpu_to_be_64(rte_pktmbuf_mtod(buf, uintptr_t));
- *dseg = (rte_v128u32_t){
- rte_cpu_to_be_32(length),
- mlx5_tx_mb2mr(txq, buf),
- addr_64,
- addr_64 >> 32,
- };
- (*txq->elts)[++elts_head & elts_m] = buf;
- if (--segs_n)
- goto next_seg;
-next_pkt:
- if (ds > MLX5_DSEG_MAX) {
- txq->stats.oerrors++;
- break;
- }
- ++elts_head;
- ++pkts;
- ++i;
- j += sg;
- /* Initialize known and common part of the WQE structure. */
- if (tso) {
- wqe->ctrl = (rte_v128u32_t){
- rte_cpu_to_be_32((txq->wqe_ci << 8) |
- MLX5_OPCODE_TSO),
- rte_cpu_to_be_32(txq->qp_num_8s | ds),
- rte_cpu_to_be_32(MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET),
- 0,
- };
- wqe->eseg = (rte_v128u32_t){
- swp_offsets,
- cs_flags | (swp_types << 8) |
- (rte_cpu_to_be_16(tso_segsz) << 16),
- metadata,
- (ehdr << 16) | rte_cpu_to_be_16(tso_header_sz),
- };
- } else {
- wqe->ctrl = (rte_v128u32_t){
- rte_cpu_to_be_32((txq->wqe_ci << 8) |
- MLX5_OPCODE_SEND),
- rte_cpu_to_be_32(txq->qp_num_8s | ds),
- rte_cpu_to_be_32(MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET),
- 0,
- };
- wqe->eseg = (rte_v128u32_t){
- swp_offsets,
- cs_flags | (swp_types << 8),
- metadata,
- (ehdr << 16) | rte_cpu_to_be_16(pkt_inline_sz),
- };
- }
-next_wqe:
- txq->wqe_ci += (ds + 3) / 4;
- /* Save the last successful WQE for completion request */
- last_wqe = (volatile struct mlx5_wqe_ctrl *)wqe;
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent bytes counter. */
- txq->stats.obytes += total_length;
-#endif
- } while (i < pkts_n);
- /* Take a shortcut if nothing must be sent. */
- if (unlikely((i + k) == 0))
- return 0;
- txq->elts_head += (i + j);
- /* Check whether completion threshold has been reached. */
- comp = txq->elts_comp + i + j + k;
- if (comp >= MLX5_TX_COMP_THRESH) {
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi++ - txq->cq_ci));
- /* Request completion on last WQE. */
- last_wqe->ctrl2 = rte_cpu_to_be_32(MLX5_COMP_ALWAYS <<
- MLX5_COMP_MODE_OFFSET);
- /* Save elts_head in unused "immediate" field of WQE. */
- last_wqe->ctrl3 = txq->elts_head;
- txq->elts_comp = 0;
- } else {
- txq->elts_comp = comp;
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent packets counter. */
- txq->stats.opackets += i;
-#endif
- /* Ring QP doorbell. */
- mlx5_tx_dbrec(txq, (volatile struct mlx5_wqe *)last_wqe);
- return i;
-}
-
-/**
- * Open a MPW session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- * @param length
- * Packet length.
- */
-static inline void
-mlx5_mpw_new(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw, uint32_t length)
-{
- uint16_t idx = txq->wqe_ci & ((1 << txq->wqe_n) - 1);
- volatile struct mlx5_wqe_data_seg (*dseg)[MLX5_MPW_DSEG_MAX] =
- (volatile struct mlx5_wqe_data_seg (*)[])
- tx_mlx5_wqe(txq, idx + 1);
-
- mpw->state = MLX5_MPW_STATE_OPENED;
- mpw->pkts_n = 0;
- mpw->len = length;
- mpw->total_len = 0;
- mpw->wqe = (volatile struct mlx5_wqe *)tx_mlx5_wqe(txq, idx);
- mpw->wqe->eseg.mss = rte_cpu_to_be_16(length);
- mpw->wqe->eseg.inline_hdr_sz = 0;
- mpw->wqe->eseg.rsvd0 = 0;
- mpw->wqe->eseg.rsvd1 = 0;
- mpw->wqe->eseg.flow_table_metadata = 0;
- mpw->wqe->ctrl[0] = rte_cpu_to_be_32((MLX5_OPC_MOD_MPW << 24) |
- (txq->wqe_ci << 8) |
- MLX5_OPCODE_TSO);
- mpw->wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET);
- mpw->wqe->ctrl[3] = 0;
- mpw->data.dseg[0] = (volatile struct mlx5_wqe_data_seg *)
- (((uintptr_t)mpw->wqe) + (2 * MLX5_WQE_DWORD_SIZE));
- mpw->data.dseg[1] = (volatile struct mlx5_wqe_data_seg *)
- (((uintptr_t)mpw->wqe) + (3 * MLX5_WQE_DWORD_SIZE));
- mpw->data.dseg[2] = &(*dseg)[0];
- mpw->data.dseg[3] = &(*dseg)[1];
- mpw->data.dseg[4] = &(*dseg)[2];
-}
-
-/**
- * Close a MPW session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- */
-static inline void
-mlx5_mpw_close(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw)
-{
- unsigned int num = mpw->pkts_n;
-
- /*
- * Store size in multiple of 16 bytes. Control and Ethernet segments
- * count as 2.
- */
- mpw->wqe->ctrl[1] = rte_cpu_to_be_32(txq->qp_num_8s | (2 + num));
- mpw->state = MLX5_MPW_STATE_CLOSED;
- if (num < 3)
- ++txq->wqe_ci;
- else
- txq->wqe_ci += 2;
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci));
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci + 1));
-}
-
-/**
- * DPDK callback for TX with MPW support.
- *
- * @param dpdk_txq
- * Generic pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
-{
- struct mlx5_txq_data *txq = (struct mlx5_txq_data *)dpdk_txq;
- uint16_t elts_head = txq->elts_head;
- const uint16_t elts_n = 1 << txq->elts_n;
- const uint16_t elts_m = elts_n - 1;
- unsigned int i = 0;
- unsigned int j = 0;
- uint16_t max_elts;
- uint16_t max_wqe;
- unsigned int comp;
- struct mlx5_mpw mpw = {
- .state = MLX5_MPW_STATE_CLOSED,
- };
-
- if (unlikely(!pkts_n))
- return 0;
- /* Prefetch first packet cacheline. */
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci));
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci + 1));
- /* Start processing. */
- mlx5_tx_complete(txq);
- max_elts = (elts_n - (elts_head - txq->elts_tail));
- max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
- if (unlikely(!max_wqe))
- return 0;
- do {
- struct rte_mbuf *buf = *(pkts++);
- uint32_t length;
- unsigned int segs_n = buf->nb_segs;
- uint32_t cs_flags;
- rte_be32_t metadata;
-
- /*
- * Make sure there is enough room to store this packet and
- * that one ring entry remains unused.
- */
- assert(segs_n);
- if (max_elts < segs_n)
- break;
- /* Do not bother with large packets MPW cannot handle. */
- if (segs_n > MLX5_MPW_DSEG_MAX) {
- txq->stats.oerrors++;
- break;
- }
- max_elts -= segs_n;
- --pkts_n;
- cs_flags = txq_ol_cksum_to_cs(buf);
- /* Copy metadata from mbuf if valid */
- metadata = buf->ol_flags & PKT_TX_METADATA ? buf->tx_metadata :
- 0;
- /* Retrieve packet information. */
- length = PKT_LEN(buf);
- assert(length);
- /* Start new session if packet differs. */
- if ((mpw.state == MLX5_MPW_STATE_OPENED) &&
- ((mpw.len != length) ||
- (segs_n != 1) ||
- (mpw.wqe->eseg.flow_table_metadata != metadata) ||
- (mpw.wqe->eseg.cs_flags != cs_flags)))
- mlx5_mpw_close(txq, &mpw);
- if (mpw.state == MLX5_MPW_STATE_CLOSED) {
- /*
- * Multi-Packet WQE consumes at most two WQE.
- * mlx5_mpw_new() expects to be able to use such
- * resources.
- */
- if (unlikely(max_wqe < 2))
- break;
- max_wqe -= 2;
- mlx5_mpw_new(txq, &mpw, length);
- mpw.wqe->eseg.cs_flags = cs_flags;
- mpw.wqe->eseg.flow_table_metadata = metadata;
- }
- /* Multi-segment packets must be alone in their MPW. */
- assert((segs_n == 1) || (mpw.pkts_n == 0));
-#if defined(MLX5_PMD_SOFT_COUNTERS) || !defined(NDEBUG)
- length = 0;
-#endif
- do {
- volatile struct mlx5_wqe_data_seg *dseg;
- uintptr_t addr;
-
- assert(buf);
- (*txq->elts)[elts_head++ & elts_m] = buf;
- dseg = mpw.data.dseg[mpw.pkts_n];
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- *dseg = (struct mlx5_wqe_data_seg){
- .byte_count = rte_cpu_to_be_32(DATA_LEN(buf)),
- .lkey = mlx5_tx_mb2mr(txq, buf),
- .addr = rte_cpu_to_be_64(addr),
- };
-#if defined(MLX5_PMD_SOFT_COUNTERS) || !defined(NDEBUG)
- length += DATA_LEN(buf);
-#endif
- buf = buf->next;
- ++mpw.pkts_n;
- ++j;
- } while (--segs_n);
- assert(length == mpw.len);
- if (mpw.pkts_n == MLX5_MPW_DSEG_MAX)
- mlx5_mpw_close(txq, &mpw);
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent bytes counter. */
- txq->stats.obytes += length;
-#endif
- ++i;
- } while (pkts_n);
- /* Take a shortcut if nothing must be sent. */
- if (unlikely(i == 0))
- return 0;
- /* Check whether completion threshold has been reached. */
- /* "j" includes both packets and segments. */
- comp = txq->elts_comp + j;
- if (comp >= MLX5_TX_COMP_THRESH) {
- volatile struct mlx5_wqe *wqe = mpw.wqe;
-
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi++ - txq->cq_ci));
- /* Request completion on last WQE. */
- wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ALWAYS <<
- MLX5_COMP_MODE_OFFSET);
- /* Save elts_head in unused "immediate" field of WQE. */
- wqe->ctrl[3] = elts_head;
- txq->elts_comp = 0;
- } else {
- txq->elts_comp = comp;
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent packets counter. */
- txq->stats.opackets += i;
-#endif
- /* Ring QP doorbell. */
- if (mpw.state == MLX5_MPW_STATE_OPENED)
- mlx5_mpw_close(txq, &mpw);
- mlx5_tx_dbrec(txq, mpw.wqe);
- txq->elts_head = elts_head;
- return i;
-}
-
-/**
- * Open a MPW inline session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- * @param length
- * Packet length.
- */
-static inline void
-mlx5_mpw_inline_new(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw,
- uint32_t length)
-{
- uint16_t idx = txq->wqe_ci & ((1 << txq->wqe_n) - 1);
- struct mlx5_wqe_inl_small *inl;
-
- mpw->state = MLX5_MPW_INL_STATE_OPENED;
- mpw->pkts_n = 0;
- mpw->len = length;
- mpw->total_len = 0;
- mpw->wqe = (volatile struct mlx5_wqe *)tx_mlx5_wqe(txq, idx);
- mpw->wqe->ctrl[0] = rte_cpu_to_be_32((MLX5_OPC_MOD_MPW << 24) |
- (txq->wqe_ci << 8) |
- MLX5_OPCODE_TSO);
- mpw->wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET);
- mpw->wqe->ctrl[3] = 0;
- mpw->wqe->eseg.mss = rte_cpu_to_be_16(length);
- mpw->wqe->eseg.inline_hdr_sz = 0;
- mpw->wqe->eseg.cs_flags = 0;
- mpw->wqe->eseg.rsvd0 = 0;
- mpw->wqe->eseg.rsvd1 = 0;
- mpw->wqe->eseg.flow_table_metadata = 0;
- inl = (struct mlx5_wqe_inl_small *)
- (((uintptr_t)mpw->wqe) + 2 * MLX5_WQE_DWORD_SIZE);
- mpw->data.raw = (uint8_t *)&inl->raw;
-}
-
-/**
- * Close a MPW inline session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- */
-static inline void
-mlx5_mpw_inline_close(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw)
-{
- unsigned int size;
- struct mlx5_wqe_inl_small *inl = (struct mlx5_wqe_inl_small *)
- (((uintptr_t)mpw->wqe) + (2 * MLX5_WQE_DWORD_SIZE));
-
- size = MLX5_WQE_SIZE - MLX5_MWQE64_INL_DATA + mpw->total_len;
- /*
- * Store size in multiple of 16 bytes. Control and Ethernet segments
- * count as 2.
- */
- mpw->wqe->ctrl[1] = rte_cpu_to_be_32(txq->qp_num_8s |
- MLX5_WQE_DS(size));
- mpw->state = MLX5_MPW_STATE_CLOSED;
- inl->byte_cnt = rte_cpu_to_be_32(mpw->total_len | MLX5_INLINE_SEG);
- txq->wqe_ci += (size + (MLX5_WQE_SIZE - 1)) / MLX5_WQE_SIZE;
-}
-
-/**
- * DPDK callback for TX with MPW inline support.
- *
- * @param dpdk_txq
- * Generic pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts,
- uint16_t pkts_n)
-{
- struct mlx5_txq_data *txq = (struct mlx5_txq_data *)dpdk_txq;
- uint16_t elts_head = txq->elts_head;
- const uint16_t elts_n = 1 << txq->elts_n;
- const uint16_t elts_m = elts_n - 1;
- unsigned int i = 0;
- unsigned int j = 0;
- uint16_t max_elts;
- uint16_t max_wqe;
- unsigned int comp;
- unsigned int inline_room = txq->max_inline * RTE_CACHE_LINE_SIZE;
- struct mlx5_mpw mpw = {
- .state = MLX5_MPW_STATE_CLOSED,
- };
- /*
- * Compute the maximum number of WQE which can be consumed by inline
- * code.
- * - 2 DSEG for:
- * - 1 control segment,
- * - 1 Ethernet segment,
- * - N Dseg from the inline request.
- */
- const unsigned int wqe_inl_n =
- ((2 * MLX5_WQE_DWORD_SIZE +
- txq->max_inline * RTE_CACHE_LINE_SIZE) +
- RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
-
- if (unlikely(!pkts_n))
- return 0;
- /* Prefetch first packet cacheline. */
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci));
- rte_prefetch0(tx_mlx5_wqe(txq, txq->wqe_ci + 1));
- /* Start processing. */
- mlx5_tx_complete(txq);
- max_elts = (elts_n - (elts_head - txq->elts_tail));
- do {
- struct rte_mbuf *buf = *(pkts++);
- uintptr_t addr;
- uint32_t length;
- unsigned int segs_n = buf->nb_segs;
- uint8_t cs_flags;
- rte_be32_t metadata;
-
- /*
- * Make sure there is enough room to store this packet and
- * that one ring entry remains unused.
- */
- assert(segs_n);
- if (max_elts < segs_n)
- break;
- /* Do not bother with large packets MPW cannot handle. */
- if (segs_n > MLX5_MPW_DSEG_MAX) {
- txq->stats.oerrors++;
- break;
- }
- max_elts -= segs_n;
- --pkts_n;
- /*
- * Compute max_wqe in case less WQE were consumed in previous
- * iteration.
- */
- max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
- cs_flags = txq_ol_cksum_to_cs(buf);
- /* Copy metadata from mbuf if valid */
- metadata = buf->ol_flags & PKT_TX_METADATA ? buf->tx_metadata :
- 0;
- /* Retrieve packet information. */
- length = PKT_LEN(buf);
- /* Start new session if packet differs. */
- if (mpw.state == MLX5_MPW_STATE_OPENED) {
- if ((mpw.len != length) ||
- (segs_n != 1) ||
- (mpw.wqe->eseg.flow_table_metadata != metadata) ||
- (mpw.wqe->eseg.cs_flags != cs_flags))
- mlx5_mpw_close(txq, &mpw);
- } else if (mpw.state == MLX5_MPW_INL_STATE_OPENED) {
- if ((mpw.len != length) ||
- (segs_n != 1) ||
- (length > inline_room) ||
- (mpw.wqe->eseg.flow_table_metadata != metadata) ||
- (mpw.wqe->eseg.cs_flags != cs_flags)) {
- mlx5_mpw_inline_close(txq, &mpw);
- inline_room =
- txq->max_inline * RTE_CACHE_LINE_SIZE;
- }
- }
- if (mpw.state == MLX5_MPW_STATE_CLOSED) {
- if ((segs_n != 1) ||
- (length > inline_room)) {
- /*
- * Multi-Packet WQE consumes at most two WQE.
- * mlx5_mpw_new() expects to be able to use
- * such resources.
- */
- if (unlikely(max_wqe < 2))
- break;
- max_wqe -= 2;
- mlx5_mpw_new(txq, &mpw, length);
- mpw.wqe->eseg.cs_flags = cs_flags;
- mpw.wqe->eseg.flow_table_metadata = metadata;
- } else {
- if (unlikely(max_wqe < wqe_inl_n))
- break;
- max_wqe -= wqe_inl_n;
- mlx5_mpw_inline_new(txq, &mpw, length);
- mpw.wqe->eseg.cs_flags = cs_flags;
- mpw.wqe->eseg.flow_table_metadata = metadata;
- }
- }
- /* Multi-segment packets must be alone in their MPW. */
- assert((segs_n == 1) || (mpw.pkts_n == 0));
- if (mpw.state == MLX5_MPW_STATE_OPENED) {
- assert(inline_room ==
- txq->max_inline * RTE_CACHE_LINE_SIZE);
-#if defined(MLX5_PMD_SOFT_COUNTERS) || !defined(NDEBUG)
- length = 0;
-#endif
- do {
- volatile struct mlx5_wqe_data_seg *dseg;
-
- assert(buf);
- (*txq->elts)[elts_head++ & elts_m] = buf;
- dseg = mpw.data.dseg[mpw.pkts_n];
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- *dseg = (struct mlx5_wqe_data_seg){
- .byte_count =
- rte_cpu_to_be_32(DATA_LEN(buf)),
- .lkey = mlx5_tx_mb2mr(txq, buf),
- .addr = rte_cpu_to_be_64(addr),
- };
-#if defined(MLX5_PMD_SOFT_COUNTERS) || !defined(NDEBUG)
- length += DATA_LEN(buf);
-#endif
- buf = buf->next;
- ++mpw.pkts_n;
- ++j;
- } while (--segs_n);
- assert(length == mpw.len);
- if (mpw.pkts_n == MLX5_MPW_DSEG_MAX)
- mlx5_mpw_close(txq, &mpw);
- } else {
- unsigned int max;
-
- assert(mpw.state == MLX5_MPW_INL_STATE_OPENED);
- assert(length <= inline_room);
- assert(length == DATA_LEN(buf));
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- (*txq->elts)[elts_head++ & elts_m] = buf;
- /* Maximum number of bytes before wrapping. */
- max = ((((uintptr_t)(txq->wqes)) +
- (1 << txq->wqe_n) *
- MLX5_WQE_SIZE) -
- (uintptr_t)mpw.data.raw);
- if (length > max) {
- rte_memcpy((void *)(uintptr_t)mpw.data.raw,
- (void *)addr,
- max);
- mpw.data.raw = (volatile void *)txq->wqes;
- rte_memcpy((void *)(uintptr_t)mpw.data.raw,
- (void *)(addr + max),
- length - max);
- mpw.data.raw += length - max;
- } else {
- rte_memcpy((void *)(uintptr_t)mpw.data.raw,
- (void *)addr,
- length);
-
- if (length == max)
- mpw.data.raw =
- (volatile void *)txq->wqes;
- else
- mpw.data.raw += length;
- }
- ++mpw.pkts_n;
- mpw.total_len += length;
- ++j;
- if (mpw.pkts_n == MLX5_MPW_DSEG_MAX) {
- mlx5_mpw_inline_close(txq, &mpw);
- inline_room =
- txq->max_inline * RTE_CACHE_LINE_SIZE;
- } else {
- inline_room -= length;
- }
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent bytes counter. */
- txq->stats.obytes += length;
-#endif
- ++i;
- } while (pkts_n);
- /* Take a shortcut if nothing must be sent. */
- if (unlikely(i == 0))
- return 0;
- /* Check whether completion threshold has been reached. */
- /* "j" includes both packets and segments. */
- comp = txq->elts_comp + j;
- if (comp >= MLX5_TX_COMP_THRESH) {
- volatile struct mlx5_wqe *wqe = mpw.wqe;
-
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi++ - txq->cq_ci));
- /* Request completion on last WQE. */
- wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ALWAYS <<
- MLX5_COMP_MODE_OFFSET);
- /* Save elts_head in unused "immediate" field of WQE. */
- wqe->ctrl[3] = elts_head;
- txq->elts_comp = 0;
- } else {
- txq->elts_comp = comp;
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent packets counter. */
- txq->stats.opackets += i;
-#endif
- /* Ring QP doorbell. */
- if (mpw.state == MLX5_MPW_INL_STATE_OPENED)
- mlx5_mpw_inline_close(txq, &mpw);
- else if (mpw.state == MLX5_MPW_STATE_OPENED)
- mlx5_mpw_close(txq, &mpw);
- mlx5_tx_dbrec(txq, mpw.wqe);
- txq->elts_head = elts_head;
- return i;
-}
-
-/**
- * Open an Enhanced MPW session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- * @param length
- * Packet length.
- */
-static inline void
-mlx5_empw_new(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw, int padding)
-{
- uint16_t idx = txq->wqe_ci & ((1 << txq->wqe_n) - 1);
-
- mpw->state = MLX5_MPW_ENHANCED_STATE_OPENED;
- mpw->pkts_n = 0;
- mpw->total_len = sizeof(struct mlx5_wqe);
- mpw->wqe = (volatile struct mlx5_wqe *)tx_mlx5_wqe(txq, idx);
- mpw->wqe->ctrl[0] =
- rte_cpu_to_be_32((MLX5_OPC_MOD_ENHANCED_MPSW << 24) |
- (txq->wqe_ci << 8) |
- MLX5_OPCODE_ENHANCED_MPSW);
- mpw->wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ONLY_FIRST_ERR <<
- MLX5_COMP_MODE_OFFSET);
- mpw->wqe->ctrl[3] = 0;
- memset((void *)(uintptr_t)&mpw->wqe->eseg, 0, MLX5_WQE_DWORD_SIZE);
- if (unlikely(padding)) {
- uintptr_t addr = (uintptr_t)(mpw->wqe + 1);
-
- /* Pad the first 2 DWORDs with zero-length inline header. */
- *(volatile uint32_t *)addr = rte_cpu_to_be_32(MLX5_INLINE_SEG);
- *(volatile uint32_t *)(addr + MLX5_WQE_DWORD_SIZE) =
- rte_cpu_to_be_32(MLX5_INLINE_SEG);
- mpw->total_len += 2 * MLX5_WQE_DWORD_SIZE;
- /* Start from the next WQEBB. */
- mpw->data.raw = (volatile void *)(tx_mlx5_wqe(txq, idx + 1));
- } else {
- mpw->data.raw = (volatile void *)(mpw->wqe + 1);
- }
-}
-
-/**
- * Close an Enhanced MPW session.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param mpw
- * Pointer to MPW session structure.
- *
- * @return
- * Number of consumed WQEs.
- */
-static inline uint16_t
-mlx5_empw_close(struct mlx5_txq_data *txq, struct mlx5_mpw *mpw)
-{
- uint16_t ret;
-
- /* Store size in multiple of 16 bytes. Control and Ethernet segments
- * count as 2.
- */
- mpw->wqe->ctrl[1] = rte_cpu_to_be_32(txq->qp_num_8s |
- MLX5_WQE_DS(mpw->total_len));
- mpw->state = MLX5_MPW_STATE_CLOSED;
- ret = (mpw->total_len + (MLX5_WQE_SIZE - 1)) / MLX5_WQE_SIZE;
- txq->wqe_ci += ret;
- return ret;
-}
-
-/**
- * TX with Enhanced MPW support.
- *
- * @param txq
- * Pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-static inline uint16_t
-txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
- uint16_t pkts_n)
-{
- uint16_t elts_head = txq->elts_head;
- const uint16_t elts_n = 1 << txq->elts_n;
- const uint16_t elts_m = elts_n - 1;
- unsigned int i = 0;
- unsigned int j = 0;
- uint16_t max_elts;
- uint16_t max_wqe;
- unsigned int max_inline = txq->max_inline * RTE_CACHE_LINE_SIZE;
- unsigned int mpw_room = 0;
- unsigned int inl_pad = 0;
- uint32_t inl_hdr;
- uint64_t addr_64;
- struct mlx5_mpw mpw = {
- .state = MLX5_MPW_STATE_CLOSED,
- };
-
- if (unlikely(!pkts_n))
- return 0;
- /* Start processing. */
- mlx5_tx_complete(txq);
- max_elts = (elts_n - (elts_head - txq->elts_tail));
- max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
- if (unlikely(!max_wqe))
- return 0;
- do {
- struct rte_mbuf *buf = *(pkts++);
- uintptr_t addr;
- unsigned int do_inline = 0; /* Whether inline is possible. */
- uint32_t length;
- uint8_t cs_flags;
- rte_be32_t metadata;
-
- /* Multi-segmented packet is handled in slow-path outside. */
- assert(NB_SEGS(buf) == 1);
- /* Make sure there is enough room to store this packet. */
- if (max_elts - j == 0)
- break;
- cs_flags = txq_ol_cksum_to_cs(buf);
- /* Copy metadata from mbuf if valid */
- metadata = buf->ol_flags & PKT_TX_METADATA ? buf->tx_metadata :
- 0;
- /* Retrieve packet information. */
- length = PKT_LEN(buf);
- /* Start new session if:
- * - multi-segment packet
- * - no space left even for a dseg
- * - next packet can be inlined with a new WQE
- * - cs_flag differs
- */
- if (mpw.state == MLX5_MPW_ENHANCED_STATE_OPENED) {
- if ((inl_pad + sizeof(struct mlx5_wqe_data_seg) >
- mpw_room) ||
- (length <= txq->inline_max_packet_sz &&
- inl_pad + sizeof(inl_hdr) + length >
- mpw_room) ||
- (mpw.wqe->eseg.flow_table_metadata != metadata) ||
- (mpw.wqe->eseg.cs_flags != cs_flags))
- max_wqe -= mlx5_empw_close(txq, &mpw);
- }
- if (unlikely(mpw.state == MLX5_MPW_STATE_CLOSED)) {
- /* In Enhanced MPW, inline as much as the budget is
- * allowed. The remaining space is to be filled with
- * dsegs. If the title WQEBB isn't padded, it will have
- * 2 dsegs there.
- */
- mpw_room = RTE_MIN(MLX5_WQE_SIZE_MAX,
- (max_inline ? max_inline :
- pkts_n * MLX5_WQE_DWORD_SIZE) +
- MLX5_WQE_SIZE);
- if (unlikely(max_wqe * MLX5_WQE_SIZE < mpw_room))
- break;
- /* Don't pad the title WQEBB to not waste WQ. */
- mlx5_empw_new(txq, &mpw, 0);
- mpw_room -= mpw.total_len;
- inl_pad = 0;
- do_inline = length <= txq->inline_max_packet_sz &&
- sizeof(inl_hdr) + length <= mpw_room &&
- !txq->mpw_hdr_dseg;
- mpw.wqe->eseg.cs_flags = cs_flags;
- mpw.wqe->eseg.flow_table_metadata = metadata;
- } else {
- /* Evaluate whether the next packet can be inlined.
- * Inlininig is possible when:
- * - length is less than configured value
- * - length fits for remaining space
- * - not required to fill the title WQEBB with dsegs
- */
- do_inline =
- length <= txq->inline_max_packet_sz &&
- inl_pad + sizeof(inl_hdr) + length <=
- mpw_room &&
- (!txq->mpw_hdr_dseg ||
- mpw.total_len >= MLX5_WQE_SIZE);
- }
- if (max_inline && do_inline) {
- /* Inline packet into WQE. */
- unsigned int max;
-
- assert(mpw.state == MLX5_MPW_ENHANCED_STATE_OPENED);
- assert(length == DATA_LEN(buf));
- inl_hdr = rte_cpu_to_be_32(length | MLX5_INLINE_SEG);
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- mpw.data.raw = (volatile void *)
- ((uintptr_t)mpw.data.raw + inl_pad);
- max = tx_mlx5_wq_tailroom(txq,
- (void *)(uintptr_t)mpw.data.raw);
- /* Copy inline header. */
- mpw.data.raw = (volatile void *)
- mlx5_copy_to_wq(
- (void *)(uintptr_t)mpw.data.raw,
- &inl_hdr,
- sizeof(inl_hdr),
- (void *)(uintptr_t)txq->wqes,
- max);
- max = tx_mlx5_wq_tailroom(txq,
- (void *)(uintptr_t)mpw.data.raw);
- /* Copy packet data. */
- mpw.data.raw = (volatile void *)
- mlx5_copy_to_wq(
- (void *)(uintptr_t)mpw.data.raw,
- (void *)addr,
- length,
- (void *)(uintptr_t)txq->wqes,
- max);
- ++mpw.pkts_n;
- mpw.total_len += (inl_pad + sizeof(inl_hdr) + length);
- /* No need to get completion as the entire packet is
- * copied to WQ. Free the buf right away.
- */
- rte_pktmbuf_free_seg(buf);
- mpw_room -= (inl_pad + sizeof(inl_hdr) + length);
- /* Add pad in the next packet if any. */
- inl_pad = (((uintptr_t)mpw.data.raw +
- (MLX5_WQE_DWORD_SIZE - 1)) &
- ~(MLX5_WQE_DWORD_SIZE - 1)) -
- (uintptr_t)mpw.data.raw;
- } else {
- /* No inline. Load a dseg of packet pointer. */
- volatile rte_v128u32_t *dseg;
-
- assert(mpw.state == MLX5_MPW_ENHANCED_STATE_OPENED);
- assert((inl_pad + sizeof(*dseg)) <= mpw_room);
- assert(length == DATA_LEN(buf));
- if (!tx_mlx5_wq_tailroom(txq,
- (void *)((uintptr_t)mpw.data.raw
- + inl_pad)))
- dseg = (volatile void *)txq->wqes;
- else
- dseg = (volatile void *)
- ((uintptr_t)mpw.data.raw +
- inl_pad);
- (*txq->elts)[elts_head++ & elts_m] = buf;
- addr_64 = rte_cpu_to_be_64(rte_pktmbuf_mtod(buf,
- uintptr_t));
- *dseg = (rte_v128u32_t) {
- rte_cpu_to_be_32(length),
- mlx5_tx_mb2mr(txq, buf),
- addr_64,
- addr_64 >> 32,
- };
- mpw.data.raw = (volatile void *)(dseg + 1);
- mpw.total_len += (inl_pad + sizeof(*dseg));
- ++j;
- ++mpw.pkts_n;
- mpw_room -= (inl_pad + sizeof(*dseg));
- inl_pad = 0;
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent bytes counter. */
- txq->stats.obytes += length;
-#endif
- ++i;
- } while (i < pkts_n);
- /* Take a shortcut if nothing must be sent. */
- if (unlikely(i == 0))
- return 0;
- /* Check whether completion threshold has been reached. */
- if (txq->elts_comp + j >= MLX5_TX_COMP_THRESH ||
- (uint16_t)(txq->wqe_ci - txq->mpw_comp) >=
- (1 << txq->wqe_n) / MLX5_TX_COMP_THRESH_INLINE_DIV) {
- volatile struct mlx5_wqe *wqe = mpw.wqe;
-
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi++ - txq->cq_ci));
- /* Request completion on last WQE. */
- wqe->ctrl[2] = rte_cpu_to_be_32(MLX5_COMP_ALWAYS <<
- MLX5_COMP_MODE_OFFSET);
- /* Save elts_head in unused "immediate" field of WQE. */
- wqe->ctrl[3] = elts_head;
- txq->elts_comp = 0;
- txq->mpw_comp = txq->wqe_ci;
- } else {
- txq->elts_comp += j;
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment sent packets counter. */
- txq->stats.opackets += i;
-#endif
- if (mpw.state == MLX5_MPW_ENHANCED_STATE_OPENED)
- mlx5_empw_close(txq, &mpw);
- /* Ring QP doorbell. */
- mlx5_tx_dbrec(txq, mpw.wqe);
- txq->elts_head = elts_head;
- return i;
-}
-
-/**
- * DPDK callback for TX with Enhanced MPW support.
- *
- * @param dpdk_txq
- * Generic pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
-{
- struct mlx5_txq_data *txq = (struct mlx5_txq_data *)dpdk_txq;
- uint16_t nb_tx = 0;
-
- while (pkts_n > nb_tx) {
- uint16_t n;
- uint16_t ret;
-
- n = txq_count_contig_multi_seg(&pkts[nb_tx], pkts_n - nb_tx);
- if (n) {
- ret = mlx5_tx_burst(dpdk_txq, &pkts[nb_tx], n);
- if (!ret)
- break;
- nb_tx += ret;
- }
- n = txq_count_contig_single_seg(&pkts[nb_tx], pkts_n - nb_tx);
- if (n) {
- ret = txq_burst_empw(txq, &pkts[nb_tx], n);
- if (!ret)
- break;
- nb_tx += ret;
- }
- }
- return nb_tx;
-}
-
-/**
- * Translate RX completion flags to packet type.
- *
- * @param[in] rxq
- * Pointer to RX queue structure.
- * @param[in] cqe
- * Pointer to CQE.
- *
- * @note: fix mlx5_dev_supported_ptypes_get() if any change here.
- *
- * @return
- * Packet type for struct rte_mbuf.
- */
-static inline uint32_t
-rxq_cq_to_pkt_type(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe)
-{
- uint8_t idx;
- uint8_t pinfo = cqe->pkt_info;
- uint16_t ptype = cqe->hdr_type_etc;
-
- /*
- * The index to the array should have:
- * bit[1:0] = l3_hdr_type
- * bit[4:2] = l4_hdr_type
- * bit[5] = ip_frag
- * bit[6] = tunneled
- * bit[7] = outer_l3_type
- */
- idx = ((pinfo & 0x3) << 6) | ((ptype & 0xfc00) >> 10);
- return mlx5_ptype_table[idx] | rxq->tunnel * !!(idx & (1 << 6));
-}
-
-/**
- * Initialize Rx WQ and indexes.
- *
- * @param[in] rxq
- * Pointer to RX queue structure.
- */
-void
-mlx5_rxq_initialize(struct mlx5_rxq_data *rxq)
-{
- const unsigned int wqe_n = 1 << rxq->elts_n;
- unsigned int i;
-
- for (i = 0; (i != wqe_n); ++i) {
- volatile struct mlx5_wqe_data_seg *scat;
- uintptr_t addr;
- uint32_t byte_count;
-
- if (mlx5_rxq_mprq_enabled(rxq)) {
- struct mlx5_mprq_buf *buf = (*rxq->mprq_bufs)[i];
-
- scat = &((volatile struct mlx5_wqe_mprq *)
- rxq->wqes)[i].dseg;
- addr = (uintptr_t)mlx5_mprq_buf_addr(buf);
- byte_count = (1 << rxq->strd_sz_n) *
- (1 << rxq->strd_num_n);
- } else {
- struct rte_mbuf *buf = (*rxq->elts)[i];
-
- scat = &((volatile struct mlx5_wqe_data_seg *)
- rxq->wqes)[i];
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- byte_count = DATA_LEN(buf);
- }
- /* scat->addr must be able to store a pointer. */
- assert(sizeof(scat->addr) >= sizeof(uintptr_t));
- *scat = (struct mlx5_wqe_data_seg){
- .addr = rte_cpu_to_be_64(addr),
- .byte_count = rte_cpu_to_be_32(byte_count),
- .lkey = mlx5_rx_addr2mr(rxq, addr),
- };
- }
- rxq->consumed_strd = 0;
- rxq->decompressed = 0;
- rxq->rq_pi = 0;
- rxq->zip = (struct rxq_zip){
- .ai = 0,
- };
- /* Update doorbell counter. */
- rxq->rq_ci = wqe_n >> rxq->sges_n;
- rte_cio_wmb();
- *rxq->rq_db = rte_cpu_to_be_32(rxq->rq_ci);
-}
-
-/**
- * Modify a Verbs queue state.
+ * Modify a Verbs/DevX queue state.
* This must be called from the primary process.
*
* @param dev
struct mlx5_priv *priv = dev->data->dev_private;
if (sm->is_wq) {
- struct ibv_wq_attr mod = {
- .attr_mask = IBV_WQ_ATTR_STATE,
- .wq_state = sm->state,
- };
struct mlx5_rxq_data *rxq = (*priv->rxqs)[sm->queue_id];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of(rxq, struct mlx5_rxq_ctrl, rxq);
- ret = mlx5_glue->modify_wq(rxq_ctrl->ibv->wq, &mod);
+ ret = priv->obj_ops.rxq_obj_modify(rxq_ctrl->obj, sm->state);
if (ret) {
- DRV_LOG(ERR, "Cannot change Rx WQ state to %u - %s\n",
+ DRV_LOG(ERR, "Cannot change Rx WQ state to %u - %s",
sm->state, strerror(errno));
rte_errno = errno;
return ret;
struct mlx5_txq_data *txq = (*priv->txqs)[sm->queue_id];
struct mlx5_txq_ctrl *txq_ctrl =
container_of(txq, struct mlx5_txq_ctrl, txq);
- struct ibv_qp_attr mod = {
- .qp_state = IBV_QPS_RESET,
- .port_num = (uint8_t)priv->ibv_port,
- };
- struct ibv_qp *qp = txq_ctrl->ibv->qp;
- ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE);
- if (ret) {
- DRV_LOG(ERR, "Cannot change the Tx QP state to RESET "
- "%s\n", strerror(errno));
- rte_errno = errno;
- return ret;
- }
- mod.qp_state = IBV_QPS_INIT;
- ret = mlx5_glue->modify_qp(qp, &mod,
- (IBV_QP_STATE | IBV_QP_PORT));
- if (ret) {
- DRV_LOG(ERR, "Cannot change Tx QP state to INIT %s\n",
- strerror(errno));
- rte_errno = errno;
- return ret;
- }
- mod.qp_state = IBV_QPS_RTR;
- ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE);
- if (ret) {
- DRV_LOG(ERR, "Cannot change Tx QP state to RTR %s\n",
- strerror(errno));
- rte_errno = errno;
+ ret = priv->obj_ops.txq_obj_modify(txq_ctrl->obj,
+ MLX5_TXQ_MOD_ERR2RDY,
+ (uint8_t)priv->dev_port);
+ if (ret)
return ret;
- }
- mod.qp_state = IBV_QPS_RTS;
- ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE);
- if (ret) {
- DRV_LOG(ERR, "Cannot change Tx QP state to RTS %s\n",
- strerror(errno));
- rte_errno = errno;
- return ret;
- }
}
return 0;
}
* @return
* 0 in case of success else non-zero value.
*/
-static int
+int
mlx5_queue_state_modify(struct rte_eth_dev *dev,
struct mlx5_mp_arg_queue_state_modify *sm)
{
+ struct mlx5_priv *priv = dev->data->dev_private;
int ret = 0;
switch (rte_eal_process_type()) {
ret = mlx5_queue_state_modify_primary(dev, sm);
break;
case RTE_PROC_SECONDARY:
- ret = mlx5_mp_req_queue_state_modify(dev, sm);
+ ret = mlx5_mp_req_queue_state_modify(&priv->mp_id, sm);
break;
default:
break;
}
return ret;
}
-
-/**
- * Handle a Rx error.
- * The function inserts the RQ state to reset when the first error CQE is
- * shown, then drains the CQ by the caller function loop. When the CQ is empty,
- * it moves the RQ state to ready and initializes the RQ.
- * Next CQE identification and error counting are in the caller responsibility.
- *
- * @param[in] rxq
- * Pointer to RX queue structure.
- * @param[in] mbuf_prepare
- * Whether to prepare mbufs for the RQ.
- *
- * @return
- * -1 in case of recovery error, otherwise the CQE status.
- */
-int
-mlx5_rx_err_handle(struct mlx5_rxq_data *rxq, uint8_t mbuf_prepare)
-{
- const uint16_t cqe_n = 1 << rxq->cqe_n;
- const uint16_t cqe_mask = cqe_n - 1;
- const unsigned int wqe_n = 1 << rxq->elts_n;
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of(rxq, struct mlx5_rxq_ctrl, rxq);
- union {
- volatile struct mlx5_cqe *cqe;
- volatile struct mlx5_err_cqe *err_cqe;
- } u = {
- .cqe = &(*rxq->cqes)[rxq->cq_ci & cqe_mask],
- };
- struct mlx5_mp_arg_queue_state_modify sm;
- int ret;
-
- switch (rxq->err_state) {
- case MLX5_RXQ_ERR_STATE_NO_ERROR:
- rxq->err_state = MLX5_RXQ_ERR_STATE_NEED_RESET;
- /* Fall-through */
- case MLX5_RXQ_ERR_STATE_NEED_RESET:
- sm.is_wq = 1;
- sm.queue_id = rxq->idx;
- sm.state = IBV_WQS_RESET;
- if (mlx5_queue_state_modify(ETH_DEV(rxq_ctrl->priv), &sm))
- return -1;
- if (rxq_ctrl->dump_file_n <
- rxq_ctrl->priv->config.max_dump_files_num) {
- MKSTR(err_str, "Unexpected CQE error syndrome "
- "0x%02x CQN = %u RQN = %u wqe_counter = %u"
- " rq_ci = %u cq_ci = %u", u.err_cqe->syndrome,
- rxq->cqn, rxq_ctrl->wqn,
- rte_be_to_cpu_16(u.err_cqe->wqe_counter),
- rxq->rq_ci << rxq->sges_n, rxq->cq_ci);
- MKSTR(name, "dpdk_mlx5_port_%u_rxq_%u_%u",
- rxq->port_id, rxq->idx, (uint32_t)rte_rdtsc());
- mlx5_dump_debug_information(name, NULL, err_str, 0);
- mlx5_dump_debug_information(name, "MLX5 Error CQ:",
- (const void *)((uintptr_t)
- rxq->cqes),
- sizeof(*u.cqe) * cqe_n);
- mlx5_dump_debug_information(name, "MLX5 Error RQ:",
- (const void *)((uintptr_t)
- rxq->wqes),
- 16 * wqe_n);
- rxq_ctrl->dump_file_n++;
- }
- rxq->err_state = MLX5_RXQ_ERR_STATE_NEED_READY;
- /* Fall-through */
- case MLX5_RXQ_ERR_STATE_NEED_READY:
- ret = check_cqe(u.cqe, cqe_n, rxq->cq_ci);
- if (ret == MLX5_CQE_STATUS_HW_OWN) {
- rte_cio_wmb();
- *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
- rte_cio_wmb();
- /*
- * The RQ consumer index must be zeroed while moving
- * from RESET state to RDY state.
- */
- *rxq->rq_db = rte_cpu_to_be_32(0);
- rte_cio_wmb();
- sm.is_wq = 1;
- sm.queue_id = rxq->idx;
- sm.state = IBV_WQS_RDY;
- if (mlx5_queue_state_modify(ETH_DEV(rxq_ctrl->priv),
- &sm))
- return -1;
- if (mbuf_prepare) {
- const uint16_t q_mask = wqe_n - 1;
- uint16_t elt_idx;
- struct rte_mbuf **elt;
- int i;
- unsigned int n = wqe_n - (rxq->rq_ci -
- rxq->rq_pi);
-
- for (i = 0; i < (int)n; ++i) {
- elt_idx = (rxq->rq_ci + i) & q_mask;
- elt = &(*rxq->elts)[elt_idx];
- *elt = rte_mbuf_raw_alloc(rxq->mp);
- if (!*elt) {
- for (i--; i >= 0; --i) {
- elt_idx = (rxq->rq_ci +
- i) & q_mask;
- elt = &(*rxq->elts)
- [elt_idx];
- rte_pktmbuf_free_seg
- (*elt);
- }
- return -1;
- }
- }
- }
- mlx5_rxq_initialize(rxq);
- rxq->err_state = MLX5_RXQ_ERR_STATE_NO_ERROR;
- }
- return ret;
- default:
- return -1;
- }
-}
-
-/**
- * Get size of the next packet for a given CQE. For compressed CQEs, the
- * consumer index is updated only once all packets of the current one have
- * been processed.
- *
- * @param rxq
- * Pointer to RX queue.
- * @param cqe
- * CQE to process.
- * @param[out] mcqe
- * Store pointer to mini-CQE if compressed. Otherwise, the pointer is not
- * written.
- *
- * @return
- * 0 in case of empty CQE, otherwise the packet size in bytes.
- */
-static inline int
-mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
- uint16_t cqe_cnt, volatile struct mlx5_mini_cqe8 **mcqe)
-{
- struct rxq_zip *zip = &rxq->zip;
- uint16_t cqe_n = cqe_cnt + 1;
- int len;
- uint16_t idx, end;
-
- do {
- len = 0;
- /* Process compressed data in the CQE and mini arrays. */
- if (zip->ai) {
- volatile struct mlx5_mini_cqe8 (*mc)[8] =
- (volatile struct mlx5_mini_cqe8 (*)[8])
- (uintptr_t)(&(*rxq->cqes)[zip->ca &
- cqe_cnt].pkt_info);
-
- len = rte_be_to_cpu_32((*mc)[zip->ai & 7].byte_cnt);
- *mcqe = &(*mc)[zip->ai & 7];
- if ((++zip->ai & 7) == 0) {
- /* Invalidate consumed CQEs */
- idx = zip->ca;
- end = zip->na;
- while (idx != end) {
- (*rxq->cqes)[idx & cqe_cnt].op_own =
- MLX5_CQE_INVALIDATE;
- ++idx;
- }
- /*
- * Increment consumer index to skip the number
- * of CQEs consumed. Hardware leaves holes in
- * the CQ ring for software use.
- */
- zip->ca = zip->na;
- zip->na += 8;
- }
- if (unlikely(rxq->zip.ai == rxq->zip.cqe_cnt)) {
- /* Invalidate the rest */
- idx = zip->ca;
- end = zip->cq_ci;
-
- while (idx != end) {
- (*rxq->cqes)[idx & cqe_cnt].op_own =
- MLX5_CQE_INVALIDATE;
- ++idx;
- }
- rxq->cq_ci = zip->cq_ci;
- zip->ai = 0;
- }
- /*
- * No compressed data, get next CQE and verify if it is
- * compressed.
- */
- } else {
- int ret;
- int8_t op_own;
-
- ret = check_cqe(cqe, cqe_n, rxq->cq_ci);
- if (unlikely(ret != MLX5_CQE_STATUS_SW_OWN)) {
- if (unlikely(ret == MLX5_CQE_STATUS_ERR ||
- rxq->err_state)) {
- ret = mlx5_rx_err_handle(rxq, 0);
- if (ret == MLX5_CQE_STATUS_HW_OWN ||
- ret == -1)
- return 0;
- } else {
- return 0;
- }
- }
- ++rxq->cq_ci;
- op_own = cqe->op_own;
- if (MLX5_CQE_FORMAT(op_own) == MLX5_COMPRESSED) {
- volatile struct mlx5_mini_cqe8 (*mc)[8] =
- (volatile struct mlx5_mini_cqe8 (*)[8])
- (uintptr_t)(&(*rxq->cqes)
- [rxq->cq_ci &
- cqe_cnt].pkt_info);
-
- /* Fix endianness. */
- zip->cqe_cnt = rte_be_to_cpu_32(cqe->byte_cnt);
- /*
- * Current mini array position is the one
- * returned by check_cqe64().
- *
- * If completion comprises several mini arrays,
- * as a special case the second one is located
- * 7 CQEs after the initial CQE instead of 8
- * for subsequent ones.
- */
- zip->ca = rxq->cq_ci;
- zip->na = zip->ca + 7;
- /* Compute the next non compressed CQE. */
- --rxq->cq_ci;
- zip->cq_ci = rxq->cq_ci + zip->cqe_cnt;
- /* Get packet size to return. */
- len = rte_be_to_cpu_32((*mc)[0].byte_cnt);
- *mcqe = &(*mc)[0];
- zip->ai = 1;
- /* Prefetch all to be invalidated */
- idx = zip->ca;
- end = zip->cq_ci;
- while (idx != end) {
- rte_prefetch0(&(*rxq->cqes)[(idx) &
- cqe_cnt]);
- ++idx;
- }
- } else {
- len = rte_be_to_cpu_32(cqe->byte_cnt);
- }
- }
- if (unlikely(rxq->err_state)) {
- cqe = &(*rxq->cqes)[rxq->cq_ci & cqe_cnt];
- ++rxq->stats.idropped;
- } else {
- return len;
- }
- } while (1);
-}
-
-/**
- * Translate RX completion flags to offload flags.
- *
- * @param[in] cqe
- * Pointer to CQE.
- *
- * @return
- * Offload flags (ol_flags) for struct rte_mbuf.
- */
-static inline uint32_t
-rxq_cq_to_ol_flags(volatile struct mlx5_cqe *cqe)
-{
- uint32_t ol_flags = 0;
- uint16_t flags = rte_be_to_cpu_16(cqe->hdr_type_etc);
-
- ol_flags =
- TRANSPOSE(flags,
- MLX5_CQE_RX_L3_HDR_VALID,
- PKT_RX_IP_CKSUM_GOOD) |
- TRANSPOSE(flags,
- MLX5_CQE_RX_L4_HDR_VALID,
- PKT_RX_L4_CKSUM_GOOD);
- return ol_flags;
-}
-
-/**
- * Fill in mbuf fields from RX completion flags.
- * Note that pkt->ol_flags should be initialized outside of this function.
- *
- * @param rxq
- * Pointer to RX queue.
- * @param pkt
- * mbuf to fill.
- * @param cqe
- * CQE to process.
- * @param rss_hash_res
- * Packet RSS Hash result.
- */
-static inline void
-rxq_cq_to_mbuf(struct mlx5_rxq_data *rxq, struct rte_mbuf *pkt,
- volatile struct mlx5_cqe *cqe, uint32_t rss_hash_res)
-{
- /* Update packet information. */
- pkt->packet_type = rxq_cq_to_pkt_type(rxq, cqe);
- if (rss_hash_res && rxq->rss_hash) {
- pkt->hash.rss = rss_hash_res;
- pkt->ol_flags |= PKT_RX_RSS_HASH;
- }
- if (rxq->mark && MLX5_FLOW_MARK_IS_VALID(cqe->sop_drop_qpn)) {
- pkt->ol_flags |= PKT_RX_FDIR;
- if (cqe->sop_drop_qpn !=
- rte_cpu_to_be_32(MLX5_FLOW_MARK_DEFAULT)) {
- uint32_t mark = cqe->sop_drop_qpn;
-
- pkt->ol_flags |= PKT_RX_FDIR_ID;
- pkt->hash.fdir.hi = mlx5_flow_mark_get(mark);
- }
- }
- if (rxq->csum)
- pkt->ol_flags |= rxq_cq_to_ol_flags(cqe);
- if (rxq->vlan_strip &&
- (cqe->hdr_type_etc & rte_cpu_to_be_16(MLX5_CQE_VLAN_STRIPPED))) {
- pkt->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
- pkt->vlan_tci = rte_be_to_cpu_16(cqe->vlan_info);
- }
- if (rxq->hw_timestamp) {
- pkt->timestamp = rte_be_to_cpu_64(cqe->timestamp);
- pkt->ol_flags |= PKT_RX_TIMESTAMP;
- }
-}
-
-/**
- * DPDK callback for RX.
- *
- * @param dpdk_rxq
- * Generic pointer to RX queue structure.
- * @param[out] pkts
- * Array to store received packets.
- * @param pkts_n
- * Maximum number of packets in array.
- *
- * @return
- * Number of packets successfully received (<= pkts_n).
- */
-uint16_t
-mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
-{
- struct mlx5_rxq_data *rxq = dpdk_rxq;
- const unsigned int wqe_cnt = (1 << rxq->elts_n) - 1;
- const unsigned int cqe_cnt = (1 << rxq->cqe_n) - 1;
- const unsigned int sges_n = rxq->sges_n;
- struct rte_mbuf *pkt = NULL;
- struct rte_mbuf *seg = NULL;
- volatile struct mlx5_cqe *cqe =
- &(*rxq->cqes)[rxq->cq_ci & cqe_cnt];
- unsigned int i = 0;
- unsigned int rq_ci = rxq->rq_ci << sges_n;
- int len = 0; /* keep its value across iterations. */
-
- while (pkts_n) {
- unsigned int idx = rq_ci & wqe_cnt;
- volatile struct mlx5_wqe_data_seg *wqe =
- &((volatile struct mlx5_wqe_data_seg *)rxq->wqes)[idx];
- struct rte_mbuf *rep = (*rxq->elts)[idx];
- volatile struct mlx5_mini_cqe8 *mcqe = NULL;
- uint32_t rss_hash_res;
-
- if (pkt)
- NEXT(seg) = rep;
- seg = rep;
- rte_prefetch0(seg);
- rte_prefetch0(cqe);
- rte_prefetch0(wqe);
- rep = rte_mbuf_raw_alloc(rxq->mp);
- if (unlikely(rep == NULL)) {
- ++rxq->stats.rx_nombuf;
- if (!pkt) {
- /*
- * no buffers before we even started,
- * bail out silently.
- */
- break;
- }
- while (pkt != seg) {
- assert(pkt != (*rxq->elts)[idx]);
- rep = NEXT(pkt);
- NEXT(pkt) = NULL;
- NB_SEGS(pkt) = 1;
- rte_mbuf_raw_free(pkt);
- pkt = rep;
- }
- break;
- }
- if (!pkt) {
- cqe = &(*rxq->cqes)[rxq->cq_ci & cqe_cnt];
- len = mlx5_rx_poll_len(rxq, cqe, cqe_cnt, &mcqe);
- if (!len) {
- rte_mbuf_raw_free(rep);
- break;
- }
- pkt = seg;
- assert(len >= (rxq->crc_present << 2));
- pkt->ol_flags = 0;
- /* If compressed, take hash result from mini-CQE. */
- rss_hash_res = rte_be_to_cpu_32(mcqe == NULL ?
- cqe->rx_hash_res :
- mcqe->rx_hash_result);
- rxq_cq_to_mbuf(rxq, pkt, cqe, rss_hash_res);
- if (rxq->crc_present)
- len -= RTE_ETHER_CRC_LEN;
- PKT_LEN(pkt) = len;
- }
- DATA_LEN(rep) = DATA_LEN(seg);
- PKT_LEN(rep) = PKT_LEN(seg);
- SET_DATA_OFF(rep, DATA_OFF(seg));
- PORT(rep) = PORT(seg);
- (*rxq->elts)[idx] = rep;
- /*
- * Fill NIC descriptor with the new buffer. The lkey and size
- * of the buffers are already known, only the buffer address
- * changes.
- */
- wqe->addr = rte_cpu_to_be_64(rte_pktmbuf_mtod(rep, uintptr_t));
- /* If there's only one MR, no need to replace LKey in WQE. */
- if (unlikely(mlx5_mr_btree_len(&rxq->mr_ctrl.cache_bh) > 1))
- wqe->lkey = mlx5_rx_mb2mr(rxq, rep);
- if (len > DATA_LEN(seg)) {
- len -= DATA_LEN(seg);
- ++NB_SEGS(pkt);
- ++rq_ci;
- continue;
- }
- DATA_LEN(seg) = len;
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment bytes counter. */
- rxq->stats.ibytes += PKT_LEN(pkt);
-#endif
- /* Return packet. */
- *(pkts++) = pkt;
- pkt = NULL;
- --pkts_n;
- ++i;
- /* Align consumer index to the next stride. */
- rq_ci >>= sges_n;
- ++rq_ci;
- rq_ci <<= sges_n;
- }
- if (unlikely((i == 0) && ((rq_ci >> sges_n) == rxq->rq_ci)))
- return 0;
- /* Update the consumer index. */
- rxq->rq_ci = rq_ci >> sges_n;
- rte_cio_wmb();
- *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
- rte_cio_wmb();
- *rxq->rq_db = rte_cpu_to_be_32(rxq->rq_ci);
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment packets counter. */
- rxq->stats.ipackets += i;
-#endif
- return i;
-}
-
-void
-mlx5_mprq_buf_free_cb(void *addr __rte_unused, void *opaque)
-{
- struct mlx5_mprq_buf *buf = opaque;
-
- if (rte_atomic16_read(&buf->refcnt) == 1) {
- rte_mempool_put(buf->mp, buf);
- } else if (rte_atomic16_add_return(&buf->refcnt, -1) == 0) {
- rte_atomic16_set(&buf->refcnt, 1);
- rte_mempool_put(buf->mp, buf);
- }
-}
-
-void
-mlx5_mprq_buf_free(struct mlx5_mprq_buf *buf)
-{
- mlx5_mprq_buf_free_cb(NULL, buf);
-}
-
-static inline void
-mprq_buf_replace(struct mlx5_rxq_data *rxq, uint16_t rq_idx)
-{
- struct mlx5_mprq_buf *rep = rxq->mprq_repl;
- volatile struct mlx5_wqe_data_seg *wqe =
- &((volatile struct mlx5_wqe_mprq *)rxq->wqes)[rq_idx].dseg;
- void *addr;
-
- assert(rep != NULL);
- /* Replace MPRQ buf. */
- (*rxq->mprq_bufs)[rq_idx] = rep;
- /* Replace WQE. */
- addr = mlx5_mprq_buf_addr(rep);
- wqe->addr = rte_cpu_to_be_64((uintptr_t)addr);
- /* If there's only one MR, no need to replace LKey in WQE. */
- if (unlikely(mlx5_mr_btree_len(&rxq->mr_ctrl.cache_bh) > 1))
- wqe->lkey = mlx5_rx_addr2mr(rxq, (uintptr_t)addr);
- /* Stash a mbuf for next replacement. */
- if (likely(!rte_mempool_get(rxq->mprq_mp, (void **)&rep)))
- rxq->mprq_repl = rep;
- else
- rxq->mprq_repl = NULL;
-}
-
-/**
- * DPDK callback for RX with Multi-Packet RQ support.
- *
- * @param dpdk_rxq
- * Generic pointer to RX queue structure.
- * @param[out] pkts
- * Array to store received packets.
- * @param pkts_n
- * Maximum number of packets in array.
- *
- * @return
- * Number of packets successfully received (<= pkts_n).
- */
-uint16_t
-mlx5_rx_burst_mprq(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
-{
- struct mlx5_rxq_data *rxq = dpdk_rxq;
- const unsigned int strd_n = 1 << rxq->strd_num_n;
- const unsigned int strd_sz = 1 << rxq->strd_sz_n;
- const unsigned int strd_shift =
- MLX5_MPRQ_STRIDE_SHIFT_BYTE * rxq->strd_shift_en;
- const unsigned int cq_mask = (1 << rxq->cqe_n) - 1;
- const unsigned int wq_mask = (1 << rxq->elts_n) - 1;
- volatile struct mlx5_cqe *cqe = &(*rxq->cqes)[rxq->cq_ci & cq_mask];
- unsigned int i = 0;
- uint32_t rq_ci = rxq->rq_ci;
- uint16_t consumed_strd = rxq->consumed_strd;
- struct mlx5_mprq_buf *buf = (*rxq->mprq_bufs)[rq_ci & wq_mask];
-
- while (i < pkts_n) {
- struct rte_mbuf *pkt;
- void *addr;
- int ret;
- unsigned int len;
- uint16_t strd_cnt;
- uint16_t strd_idx;
- uint32_t offset;
- uint32_t byte_cnt;
- volatile struct mlx5_mini_cqe8 *mcqe = NULL;
- uint32_t rss_hash_res = 0;
-
- if (consumed_strd == strd_n) {
- /* Replace WQE only if the buffer is still in use. */
- if (rte_atomic16_read(&buf->refcnt) > 1) {
- mprq_buf_replace(rxq, rq_ci & wq_mask);
- /* Release the old buffer. */
- mlx5_mprq_buf_free(buf);
- } else if (unlikely(rxq->mprq_repl == NULL)) {
- struct mlx5_mprq_buf *rep;
-
- /*
- * Currently, the MPRQ mempool is out of buffer
- * and doing memcpy regardless of the size of Rx
- * packet. Retry allocation to get back to
- * normal.
- */
- if (!rte_mempool_get(rxq->mprq_mp,
- (void **)&rep))
- rxq->mprq_repl = rep;
- }
- /* Advance to the next WQE. */
- consumed_strd = 0;
- ++rq_ci;
- buf = (*rxq->mprq_bufs)[rq_ci & wq_mask];
- }
- cqe = &(*rxq->cqes)[rxq->cq_ci & cq_mask];
- ret = mlx5_rx_poll_len(rxq, cqe, cq_mask, &mcqe);
- if (!ret)
- break;
- byte_cnt = ret;
- strd_cnt = (byte_cnt & MLX5_MPRQ_STRIDE_NUM_MASK) >>
- MLX5_MPRQ_STRIDE_NUM_SHIFT;
- assert(strd_cnt);
- consumed_strd += strd_cnt;
- if (byte_cnt & MLX5_MPRQ_FILLER_MASK)
- continue;
- if (mcqe == NULL) {
- rss_hash_res = rte_be_to_cpu_32(cqe->rx_hash_res);
- strd_idx = rte_be_to_cpu_16(cqe->wqe_counter);
- } else {
- /* mini-CQE for MPRQ doesn't have hash result. */
- strd_idx = rte_be_to_cpu_16(mcqe->stride_idx);
- }
- assert(strd_idx < strd_n);
- assert(!((rte_be_to_cpu_16(cqe->wqe_id) ^ rq_ci) & wq_mask));
- /*
- * Currently configured to receive a packet per a stride. But if
- * MTU is adjusted through kernel interface, device could
- * consume multiple strides without raising an error. In this
- * case, the packet should be dropped because it is bigger than
- * the max_rx_pkt_len.
- */
- if (unlikely(strd_cnt > 1)) {
- ++rxq->stats.idropped;
- continue;
- }
- pkt = rte_pktmbuf_alloc(rxq->mp);
- if (unlikely(pkt == NULL)) {
- ++rxq->stats.rx_nombuf;
- break;
- }
- len = (byte_cnt & MLX5_MPRQ_LEN_MASK) >> MLX5_MPRQ_LEN_SHIFT;
- assert((int)len >= (rxq->crc_present << 2));
- if (rxq->crc_present)
- len -= RTE_ETHER_CRC_LEN;
- offset = strd_idx * strd_sz + strd_shift;
- addr = RTE_PTR_ADD(mlx5_mprq_buf_addr(buf), offset);
- /* Initialize the offload flag. */
- pkt->ol_flags = 0;
- /*
- * Memcpy packets to the target mbuf if:
- * - The size of packet is smaller than mprq_max_memcpy_len.
- * - Out of buffer in the Mempool for Multi-Packet RQ.
- */
- if (len <= rxq->mprq_max_memcpy_len || rxq->mprq_repl == NULL) {
- /*
- * When memcpy'ing packet due to out-of-buffer, the
- * packet must be smaller than the target mbuf.
- */
- if (unlikely(rte_pktmbuf_tailroom(pkt) < len)) {
- rte_pktmbuf_free_seg(pkt);
- ++rxq->stats.idropped;
- continue;
- }
- rte_memcpy(rte_pktmbuf_mtod(pkt, void *), addr, len);
- } else {
- rte_iova_t buf_iova;
- struct rte_mbuf_ext_shared_info *shinfo;
- uint16_t buf_len = strd_cnt * strd_sz;
-
- /* Increment the refcnt of the whole chunk. */
- rte_atomic16_add_return(&buf->refcnt, 1);
- assert((uint16_t)rte_atomic16_read(&buf->refcnt) <=
- strd_n + 1);
- addr = RTE_PTR_SUB(addr, RTE_PKTMBUF_HEADROOM);
- /*
- * MLX5 device doesn't use iova but it is necessary in a
- * case where the Rx packet is transmitted via a
- * different PMD.
- */
- buf_iova = rte_mempool_virt2iova(buf) +
- RTE_PTR_DIFF(addr, buf);
- shinfo = rte_pktmbuf_ext_shinfo_init_helper(addr,
- &buf_len, mlx5_mprq_buf_free_cb, buf);
- /*
- * EXT_ATTACHED_MBUF will be set to pkt->ol_flags when
- * attaching the stride to mbuf and more offload flags
- * will be added below by calling rxq_cq_to_mbuf().
- * Other fields will be overwritten.
- */
- rte_pktmbuf_attach_extbuf(pkt, addr, buf_iova, buf_len,
- shinfo);
- rte_pktmbuf_reset_headroom(pkt);
- assert(pkt->ol_flags == EXT_ATTACHED_MBUF);
- /*
- * Prevent potential overflow due to MTU change through
- * kernel interface.
- */
- if (unlikely(rte_pktmbuf_tailroom(pkt) < len)) {
- rte_pktmbuf_free_seg(pkt);
- ++rxq->stats.idropped;
- continue;
- }
- }
- rxq_cq_to_mbuf(rxq, pkt, cqe, rss_hash_res);
- PKT_LEN(pkt) = len;
- DATA_LEN(pkt) = len;
- PORT(pkt) = rxq->port_id;
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment bytes counter. */
- rxq->stats.ibytes += PKT_LEN(pkt);
-#endif
- /* Return packet. */
- *(pkts++) = pkt;
- ++i;
- }
- /* Update the consumer indexes. */
- rxq->consumed_strd = consumed_strd;
- rte_cio_wmb();
- *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
- if (rq_ci != rxq->rq_ci) {
- rxq->rq_ci = rq_ci;
- rte_cio_wmb();
- *rxq->rq_db = rte_cpu_to_be_32(rxq->rq_ci);
- }
-#ifdef MLX5_PMD_SOFT_COUNTERS
- /* Increment packets counter. */
- rxq->stats.ipackets += i;
-#endif
- return i;
-}
-
-/**
- * Dummy DPDK callback for TX.
- *
- * This function is used to temporarily replace the real callback during
- * unsafe control operations on the queue, or in case of error.
- *
- * @param dpdk_txq
- * Generic pointer to TX queue structure.
- * @param[in] pkts
- * Packets to transmit.
- * @param pkts_n
- * Number of packets in array.
- *
- * @return
- * Number of packets successfully transmitted (<= pkts_n).
- */
-uint16_t
-removed_tx_burst(void *dpdk_txq __rte_unused,
- struct rte_mbuf **pkts __rte_unused,
- uint16_t pkts_n __rte_unused)
-{
- rte_mb();
- return 0;
-}
-
-/**
- * Dummy DPDK callback for RX.
- *
- * This function is used to temporarily replace the real callback during
- * unsafe control operations on the queue, or in case of error.
- *
- * @param dpdk_rxq
- * Generic pointer to RX queue structure.
- * @param[out] pkts
- * Array to store received packets.
- * @param pkts_n
- * Maximum number of packets in array.
- *
- * @return
- * Number of packets successfully received (<= pkts_n).
- */
-uint16_t
-removed_rx_burst(void *dpdk_txq __rte_unused,
- struct rte_mbuf **pkts __rte_unused,
- uint16_t pkts_n __rte_unused)
-{
- rte_mb();
- return 0;
-}
-
-/*
- * Vectorized Rx/Tx routines are not compiled in when required vector
- * instructions are not supported on a target architecture. The following null
- * stubs are needed for linkage when those are not included outside of this file
- * (e.g. mlx5_rxtx_vec_sse.c for x86).
- */
-
-__rte_weak uint16_t
-mlx5_tx_burst_raw_vec(void *dpdk_txq __rte_unused,
- struct rte_mbuf **pkts __rte_unused,
- uint16_t pkts_n __rte_unused)
-{
- return 0;
-}
-
-__rte_weak uint16_t
-mlx5_tx_burst_vec(void *dpdk_txq __rte_unused,
- struct rte_mbuf **pkts __rte_unused,
- uint16_t pkts_n __rte_unused)
-{
- return 0;
-}
-
-__rte_weak uint16_t
-mlx5_rx_burst_vec(void *dpdk_txq __rte_unused,
- struct rte_mbuf **pkts __rte_unused,
- uint16_t pkts_n __rte_unused)
-{
- return 0;
-}
-
-__rte_weak int
-mlx5_check_raw_vec_tx_support(struct rte_eth_dev *dev __rte_unused)
-{
- return -ENOTSUP;
-}
-
-__rte_weak int
-mlx5_check_vec_tx_support(struct rte_eth_dev *dev __rte_unused)
-{
- return -ENOTSUP;
-}
-
-__rte_weak int
-mlx5_rxq_check_vec_support(struct mlx5_rxq_data *rxq __rte_unused)
-{
- return -ENOTSUP;
-}
-
-__rte_weak int
-mlx5_check_vec_rx_support(struct rte_eth_dev *dev __rte_unused)
-{
- return -ENOTSUP;
-}
git.droids-corp.org / dpdk.git / blobdiff