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authorLuca Boccassi <luca.boccassi@gmail.com>2018-08-14 18:52:30 +0100
committerLuca Boccassi <luca.boccassi@gmail.com>2018-08-14 18:53:17 +0100
commitb63264c8342e6a1b6971c79550d2af2024b6a4de (patch)
tree83114aac64286fe616506c0b3dfaec2ab86ef835 /drivers/net/mlx5/mlx5_rxtx.c
parentca33590b6af032bff57d9cc70455660466a654b2 (diff)
New upstream version 18.08upstream/18.08
Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/mlx5/mlx5_rxtx.c')
-rw-r--r--drivers/net/mlx5/mlx5_rxtx.c748
1 files changed, 562 insertions, 186 deletions
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index dc4ead93..2d14f8a6 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2015 6WIND S.A.
- * Copyright 2015 Mellanox.
+ * Copyright 2015 Mellanox Technologies, Ltd
*/
#include <assert.h>
@@ -34,19 +34,29 @@
#include "mlx5_prm.h"
static __rte_always_inline uint32_t
-rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe);
+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, uint32_t *rss_hash);
+ uint16_t cqe_cnt, volatile struct mlx5_mini_cqe8 **mcqe);
static __rte_always_inline uint32_t
-rxq_cq_to_ol_flags(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe);
+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);
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;
+
/**
* Build a table to translate Rx completion flags to packet type.
*
@@ -86,6 +96,14 @@ mlx5_set_ptype_table(void)
RTE_PTYPE_L4_TCP;
(*p)[0x06] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_L4_TCP;
+ (*p)[0x0d] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x0e] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x11] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x12] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
/* UDP */
(*p)[0x09] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_L4_UDP;
@@ -104,17 +122,27 @@ mlx5_set_ptype_table(void)
RTE_PTYPE_L4_TCP;
(*p)[0x86] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_L4_TCP;
+ (*p)[0x8d] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x8e] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x91] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
+ (*p)[0x92] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_L4_TCP;
(*p)[0x89] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_L4_UDP;
(*p)[0x8a] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_L4_UDP;
/* Tunneled - L3 */
+ (*p)[0x40] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
(*p)[0x41] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_NONFRAG;
(*p)[0x42] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_NONFRAG;
+ (*p)[0xc0] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
(*p)[0xc1] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_NONFRAG;
@@ -141,12 +169,36 @@ mlx5_set_ptype_table(void)
(*p)[0x46] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0x4d] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0x4e] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0x51] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0x52] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
(*p)[0xc5] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_TCP;
(*p)[0xc6] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0xcd] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0xce] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0xd1] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
+ (*p)[0xd2] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+ RTE_PTYPE_INNER_L4_TCP;
/* Tunneled - UDP */
(*p)[0x49] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
@@ -163,6 +215,74 @@ mlx5_set_ptype_table(void)
}
/**
+ * Build a table to translate packet to checksum type of Verbs.
+ */
+void
+mlx5_set_cksum_table(void)
+{
+ unsigned int i;
+ uint8_t v;
+
+ /*
+ * 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[9] = tunnel
+ */
+ for (i = 0; i < RTE_DIM(mlx5_cksum_table); ++i) {
+ v = 0;
+ if (i & (1 << 9)) {
+ /* Tunneled packet. */
+ if (i & (1 << 8)) /* Outer IP. */
+ v |= MLX5_ETH_WQE_L3_CSUM;
+ if (i & (1 << 4)) /* Inner IP. */
+ v |= MLX5_ETH_WQE_L3_INNER_CSUM;
+ if (i & (3 << 2 | 1 << 0)) /* L4 or TSO. */
+ v |= MLX5_ETH_WQE_L4_INNER_CSUM;
+ } else {
+ /* No tunnel. */
+ if (i & (1 << 4)) /* IP. */
+ v |= MLX5_ETH_WQE_L3_CSUM;
+ if (i & (3 << 2 | 1 << 0)) /* L4 or TSO. */
+ v |= MLX5_ETH_WQE_L4_CSUM;
+ }
+ mlx5_cksum_table[i] = v;
+ }
+}
+
+/**
+ * Build a table to translate packet type of mbuf to SWP type of Verbs.
+ */
+void
+mlx5_set_swp_types_table(void)
+{
+ unsigned int i;
+ uint8_t v;
+
+ /*
+ * 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
+ */
+ for (i = 0; i < RTE_DIM(mlx5_swp_types_table); ++i) {
+ v = 0;
+ if (i & (1 << 8))
+ v |= MLX5_ETH_WQE_L3_OUTER_IPV6;
+ if (i & (1 << 9))
+ 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))
+ v |= MLX5_ETH_WQE_L4_INNER_UDP;
+ mlx5_swp_types_table[i] = v;
+ }
+}
+
+/**
* Return the size of tailroom of WQ.
*
* @param txq
@@ -219,6 +339,60 @@ mlx5_copy_to_wq(void *dst, const void *src, size_t n,
}
/**
+ * 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
@@ -321,6 +495,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
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;
@@ -329,13 +504,11 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
/* Start processing. */
mlx5_tx_complete(txq);
max_elts = (elts_n - (elts_head - txq->elts_tail));
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi - txq->cq_ci));
max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
if (unlikely(!max_wqe))
return 0;
do {
- struct rte_mbuf *buf = NULL;
+ struct rte_mbuf *buf = *pkts; /* First_seg. */
uint8_t *raw;
volatile struct mlx5_wqe_v *wqe = NULL;
volatile rte_v128u32_t *dseg = NULL;
@@ -347,14 +520,15 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
uint16_t tso_header_sz = 0;
uint16_t ehdr;
uint8_t cs_flags;
- uint64_t tso = 0;
+ uint8_t tso = txq->tso_en && (buf->ol_flags & PKT_TX_TCP_SEG);
+ uint32_t swp_offsets = 0;
+ uint8_t swp_types = 0;
uint16_t tso_segsz = 0;
#ifdef MLX5_PMD_SOFT_COUNTERS
uint32_t total_length = 0;
#endif
+ int ret;
- /* first_seg */
- buf = *pkts;
segs_n = buf->nb_segs;
/*
* Make sure there is enough room to store this packet and
@@ -389,7 +563,8 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
if (pkts_n - i > 1)
rte_prefetch0(
rte_pktmbuf_mtod(*(pkts + 1), volatile void *));
- cs_flags = txq_ol_cksum_to_cs(txq, buf);
+ 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;
/* Replace the Ethernet type by the VLAN if necessary. */
if (buf->ol_flags & PKT_TX_VLAN_PKT) {
@@ -415,54 +590,14 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
addr += pkt_inline_sz;
}
raw += MLX5_WQE_DWORD_SIZE;
- tso = txq->tso_en && (buf->ol_flags & PKT_TX_TCP_SEG);
if (tso) {
- 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 uint64_t is_tunneled =
- buf->ol_flags & (PKT_TX_TUNNEL_GRE |
- PKT_TX_TUNNEL_VXLAN);
-
- tso_header_sz = buf->l2_len + vlan_sz +
- buf->l3_len + buf->l4_len;
- tso_segsz = buf->tso_segsz;
- if (unlikely(tso_segsz == 0)) {
- txq->stats.oerrors++;
- break;
- }
- if (is_tunneled && txq->tunnel_en) {
- tso_header_sz += buf->outer_l2_len +
- buf->outer_l3_len;
- cs_flags |= MLX5_ETH_WQE_L4_INNER_CSUM;
- } else {
- cs_flags |= MLX5_ETH_WQE_L4_CSUM;
- }
- if (unlikely(tso_header_sz > MLX5_MAX_TSO_HEADER)) {
- txq->stats.oerrors++;
+ ret = inline_tso(txq, buf, &length,
+ &addr, &pkt_inline_sz,
+ &raw, &max_wqe,
+ &tso_segsz, &tso_header_sz);
+ if (ret == -EINVAL) {
break;
- }
- copy_b = tso_header_sz - pkt_inline_sz;
- /* First seg must contain all headers. */
- assert(copy_b <= length);
- if (copy_b && ((end - (uintptr_t)raw) > copy_b)) {
- uint16_t n = (MLX5_WQE_DS(copy_b) - 1 + 3) / 4;
-
- if (unlikely(max_wqe < n))
- break;
- max_wqe -= n;
- rte_memcpy((void *)raw, (void *)addr, copy_b);
- addr += copy_b;
- length -= copy_b;
- /* Include padding for TSO header. */
- copy_b = MLX5_WQE_DS(copy_b) *
- MLX5_WQE_DWORD_SIZE;
- pkt_inline_sz += copy_b;
- raw += copy_b;
- } else {
+ } else if (ret == -EAGAIN) {
/* NOP WQE. */
wqe->ctrl = (rte_v128u32_t){
rte_cpu_to_be_32(txq->wqe_ci << 8),
@@ -507,7 +642,8 @@ pkt_inline:
if (unlikely(max_wqe < n))
break;
max_wqe -= n;
- if (tso && !inl) {
+ if (tso) {
+ assert(inl == 0);
inl = rte_cpu_to_be_32(copy_b |
MLX5_INLINE_SEG);
rte_memcpy((void *)raw,
@@ -542,8 +678,17 @@ pkt_inline:
} else if (!segs_n) {
goto next_pkt;
} else {
- raw += copy_b;
- inline_room -= copy_b;
+ /*
+ * 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);
@@ -565,12 +710,12 @@ pkt_inline:
ds = 3;
use_dseg:
/* Add the remaining packet as a simple ds. */
- addr = rte_cpu_to_be_64(addr);
+ addr_64 = rte_cpu_to_be_64(addr);
*dseg = (rte_v128u32_t){
rte_cpu_to_be_32(length),
mlx5_tx_mb2mr(txq, buf),
- addr,
- addr >> 32,
+ addr_64,
+ addr_64 >> 32,
};
++ds;
if (!segs_n)
@@ -604,12 +749,12 @@ next_seg:
total_length += length;
#endif
/* Store segment information. */
- addr = rte_cpu_to_be_64(rte_pktmbuf_mtod(buf, uintptr_t));
+ 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,
- addr >> 32,
+ addr_64,
+ addr_64 >> 32,
};
(*txq->elts)[++elts_head & elts_m] = buf;
if (--segs_n)
@@ -633,8 +778,9 @@ next_pkt:
0,
};
wqe->eseg = (rte_v128u32_t){
- 0,
- cs_flags | (rte_cpu_to_be_16(tso_segsz) << 16),
+ swp_offsets,
+ cs_flags | (swp_types << 8) |
+ (rte_cpu_to_be_16(tso_segsz) << 16),
0,
(ehdr << 16) | rte_cpu_to_be_16(tso_header_sz),
};
@@ -647,8 +793,8 @@ next_pkt:
0,
};
wqe->eseg = (rte_v128u32_t){
- 0,
- cs_flags,
+ swp_offsets,
+ cs_flags | (swp_types << 8),
0,
(ehdr << 16) | rte_cpu_to_be_16(pkt_inline_sz),
};
@@ -669,14 +815,13 @@ next_wqe:
/* 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(8);
/* Save elts_head in unused "immediate" field of WQE. */
last_wqe->ctrl3 = txq->elts_head;
txq->elts_comp = 0;
-#ifndef NDEBUG
- ++txq->cq_pi;
-#endif
} else {
txq->elts_comp = comp;
}
@@ -795,8 +940,6 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
/* Start processing. */
mlx5_tx_complete(txq);
max_elts = (elts_n - (elts_head - txq->elts_tail));
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi - txq->cq_ci));
max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
if (unlikely(!max_wqe))
return 0;
@@ -820,7 +963,7 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
}
max_elts -= segs_n;
--pkts_n;
- cs_flags = txq_ol_cksum_to_cs(txq, buf);
+ cs_flags = txq_ol_cksum_to_cs(buf);
/* Retrieve packet information. */
length = PKT_LEN(buf);
assert(length);
@@ -885,14 +1028,13 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
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(8);
/* Save elts_head in unused "immediate" field of WQE. */
wqe->ctrl[3] = elts_head;
txq->elts_comp = 0;
-#ifndef NDEBUG
- ++txq->cq_pi;
-#endif
} else {
txq->elts_comp = comp;
}
@@ -1024,8 +1166,6 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts,
/* Start processing. */
mlx5_tx_complete(txq);
max_elts = (elts_n - (elts_head - txq->elts_tail));
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi - txq->cq_ci));
do {
struct rte_mbuf *buf = *(pkts++);
uintptr_t addr;
@@ -1052,7 +1192,7 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts,
* iteration.
*/
max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
- cs_flags = txq_ol_cksum_to_cs(txq, buf);
+ cs_flags = txq_ol_cksum_to_cs(buf);
/* Retrieve packet information. */
length = PKT_LEN(buf);
/* Start new session if packet differs. */
@@ -1182,14 +1322,13 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts,
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(8);
/* Save elts_head in unused "immediate" field of WQE. */
wqe->ctrl[3] = elts_head;
txq->elts_comp = 0;
-#ifndef NDEBUG
- ++txq->cq_pi;
-#endif
} else {
txq->elts_comp = comp;
}
@@ -1303,6 +1442,7 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
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,
};
@@ -1312,15 +1452,12 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
/* Start processing. */
mlx5_tx_complete(txq);
max_elts = (elts_n - (elts_head - txq->elts_tail));
- /* A CQE slot must always be available. */
- assert((1u << txq->cqe_n) - (txq->cq_pi - txq->cq_ci));
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 n;
unsigned int do_inline = 0; /* Whether inline is possible. */
uint32_t length;
uint8_t cs_flags;
@@ -1330,7 +1467,7 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
/* Make sure there is enough room to store this packet. */
if (max_elts - j == 0)
break;
- cs_flags = txq_ol_cksum_to_cs(txq, buf);
+ cs_flags = txq_ol_cksum_to_cs(buf);
/* Retrieve packet information. */
length = PKT_LEN(buf);
/* Start new session if:
@@ -1382,7 +1519,7 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
(!txq->mpw_hdr_dseg ||
mpw.total_len >= MLX5_WQE_SIZE);
}
- if (do_inline) {
+ if (max_inline && do_inline) {
/* Inline packet into WQE. */
unsigned int max;
@@ -1440,16 +1577,13 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
((uintptr_t)mpw.data.raw +
inl_pad);
(*txq->elts)[elts_head++ & elts_m] = buf;
- addr = rte_pktmbuf_mtod(buf, uintptr_t);
- for (n = 0; n * RTE_CACHE_LINE_SIZE < length; n++)
- rte_prefetch2((void *)(addr +
- n * RTE_CACHE_LINE_SIZE));
- addr = rte_cpu_to_be_64(addr);
+ 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,
- addr >> 32,
+ addr_64,
+ addr_64 >> 32,
};
mpw.data.raw = (volatile void *)(dseg + 1);
mpw.total_len += (inl_pad + sizeof(*dseg));
@@ -1473,15 +1607,14 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts,
(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(8);
/* Save elts_head in unused "immediate" field of WQE. */
wqe->ctrl[3] = elts_head;
txq->elts_comp = 0;
txq->mpw_comp = txq->wqe_ci;
-#ifndef NDEBUG
- ++txq->cq_pi;
-#endif
} else {
txq->elts_comp += j;
}
@@ -1541,6 +1674,8 @@ mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
/**
* Translate RX completion flags to packet type.
*
+ * @param[in] rxq
+ * Pointer to RX queue structure.
* @param[in] cqe
* Pointer to CQE.
*
@@ -1550,7 +1685,7 @@ mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
* Packet type for struct rte_mbuf.
*/
static inline uint32_t
-rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe)
+rxq_cq_to_pkt_type(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe)
{
uint8_t idx;
uint8_t pinfo = cqe->pkt_info;
@@ -1565,7 +1700,7 @@ rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe)
* bit[7] = outer_l3_type
*/
idx = ((pinfo & 0x3) << 6) | ((ptype & 0xfc00) >> 10);
- return mlx5_ptype_table[idx];
+ return mlx5_ptype_table[idx] | rxq->tunnel * !!(idx & (1 << 6));
}
/**
@@ -1577,8 +1712,9 @@ rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe)
* Pointer to RX queue.
* @param cqe
* CQE to process.
- * @param[out] rss_hash
- * Packet RSS Hash result.
+ * @param[out] mcqe
+ * Store pointer to mini-CQE if compressed. Otherwise, the pointer is not
+ * written.
*
* @return
* Packet size in bytes (0 if there is none), -1 in case of completion
@@ -1586,7 +1722,7 @@ rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe)
*/
static inline int
mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
- uint16_t cqe_cnt, uint32_t *rss_hash)
+ uint16_t cqe_cnt, volatile struct mlx5_mini_cqe8 **mcqe)
{
struct rxq_zip *zip = &rxq->zip;
uint16_t cqe_n = cqe_cnt + 1;
@@ -1600,7 +1736,7 @@ mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
(uintptr_t)(&(*rxq->cqes)[zip->ca & cqe_cnt].pkt_info);
len = rte_be_to_cpu_32((*mc)[zip->ai & 7].byte_cnt);
- *rss_hash = rte_be_to_cpu_32((*mc)[zip->ai & 7].rx_hash_result);
+ *mcqe = &(*mc)[zip->ai & 7];
if ((++zip->ai & 7) == 0) {
/* Invalidate consumed CQEs */
idx = zip->ca;
@@ -1665,7 +1801,7 @@ mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
zip->cq_ci = rxq->cq_ci + zip->cqe_cnt;
/* Get packet size to return. */
len = rte_be_to_cpu_32((*mc)[0].byte_cnt);
- *rss_hash = rte_be_to_cpu_32((*mc)[0].rx_hash_result);
+ *mcqe = &(*mc)[0];
zip->ai = 1;
/* Prefetch all the entries to be invalidated */
idx = zip->ca;
@@ -1676,7 +1812,6 @@ mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
}
} else {
len = rte_be_to_cpu_32(cqe->byte_cnt);
- *rss_hash = rte_be_to_cpu_32(cqe->rx_hash_res);
}
/* Error while receiving packet. */
if (unlikely(MLX5_CQE_OPCODE(op_own) == MLX5_CQE_RESP_ERR))
@@ -1688,8 +1823,6 @@ mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
/**
* Translate RX completion flags to offload flags.
*
- * @param[in] rxq
- * Pointer to RX queue structure.
* @param[in] cqe
* Pointer to CQE.
*
@@ -1697,7 +1830,7 @@ mlx5_rx_poll_len(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe,
* Offload flags (ol_flags) for struct rte_mbuf.
*/
static inline uint32_t
-rxq_cq_to_ol_flags(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe)
+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);
@@ -1709,18 +1842,56 @@ rxq_cq_to_ol_flags(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cqe)
TRANSPOSE(flags,
MLX5_CQE_RX_L4_HDR_VALID,
PKT_RX_L4_CKSUM_GOOD);
- if ((cqe->pkt_info & MLX5_CQE_RX_TUNNEL_PACKET) && (rxq->csum_l2tun))
- 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
@@ -1750,9 +1921,11 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
while (pkts_n) {
unsigned int idx = rq_ci & wqe_cnt;
- volatile struct mlx5_wqe_data_seg *wqe = &(*rxq->wqes)[idx];
+ volatile struct mlx5_wqe_data_seg *wqe =
+ &((volatile struct mlx5_wqe_data_seg *)rxq->wqes)[idx];
struct rte_mbuf *rep = (*rxq->elts)[idx];
- uint32_t rss_hash_res = 0;
+ volatile struct mlx5_mini_cqe8 *mcqe = NULL;
+ uint32_t rss_hash_res;
if (pkt)
NEXT(seg) = rep;
@@ -1782,8 +1955,7 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
}
if (!pkt) {
cqe = &(*rxq->cqes)[rxq->cq_ci & cqe_cnt];
- len = mlx5_rx_poll_len(rxq, cqe, cqe_cnt,
- &rss_hash_res);
+ len = mlx5_rx_poll_len(rxq, cqe, cqe_cnt, &mcqe);
if (!len) {
rte_mbuf_raw_free(rep);
break;
@@ -1796,40 +1968,12 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
}
pkt = seg;
assert(len >= (rxq->crc_present << 2));
- /* Update packet information. */
- pkt->packet_type = rxq_cq_to_pkt_type(cqe);
pkt->ol_flags = 0;
- 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 | rxq->csum_l2tun)
- pkt->ol_flags |= rxq_cq_to_ol_flags(rxq, 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;
- }
+ /* 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 -= ETHER_CRC_LEN;
PKT_LEN(pkt) = len;
@@ -1845,6 +1989,9 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
* 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);
@@ -1882,6 +2029,246 @@ skip:
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;
+ uint16_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;
+ if (unlikely(ret == -1)) {
+ /* RX error, packet is likely too large. */
+ ++rxq->stats.idropped;
+ continue;
+ }
+ 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 -= 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.
*
@@ -1899,11 +2286,10 @@ skip:
* Number of packets successfully transmitted (<= pkts_n).
*/
uint16_t
-removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
+removed_tx_burst(void *dpdk_txq __rte_unused,
+ struct rte_mbuf **pkts __rte_unused,
+ uint16_t pkts_n __rte_unused)
{
- (void)dpdk_txq;
- (void)pkts;
- (void)pkts_n;
return 0;
}
@@ -1924,11 +2310,10 @@ removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
* Number of packets successfully received (<= pkts_n).
*/
uint16_t
-removed_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
+removed_rx_burst(void *dpdk_txq __rte_unused,
+ struct rte_mbuf **pkts __rte_unused,
+ uint16_t pkts_n __rte_unused)
{
- (void)dpdk_rxq;
- (void)pkts;
- (void)pkts_n;
return 0;
}
@@ -1940,58 +2325,49 @@ removed_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
*/
uint16_t __attribute__((weak))
-mlx5_tx_burst_raw_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
+mlx5_tx_burst_raw_vec(void *dpdk_txq __rte_unused,
+ struct rte_mbuf **pkts __rte_unused,
+ uint16_t pkts_n __rte_unused)
{
- (void)dpdk_txq;
- (void)pkts;
- (void)pkts_n;
return 0;
}
uint16_t __attribute__((weak))
-mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
+mlx5_tx_burst_vec(void *dpdk_txq __rte_unused,
+ struct rte_mbuf **pkts __rte_unused,
+ uint16_t pkts_n __rte_unused)
{
- (void)dpdk_txq;
- (void)pkts;
- (void)pkts_n;
return 0;
}
uint16_t __attribute__((weak))
-mlx5_rx_burst_vec(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
+mlx5_rx_burst_vec(void *dpdk_txq __rte_unused,
+ struct rte_mbuf **pkts __rte_unused,
+ uint16_t pkts_n __rte_unused)
{
- (void)dpdk_rxq;
- (void)pkts;
- (void)pkts_n;
return 0;
}
int __attribute__((weak))
-priv_check_raw_vec_tx_support(struct priv *priv, struct rte_eth_dev *dev)
+mlx5_check_raw_vec_tx_support(struct rte_eth_dev *dev __rte_unused)
{
- (void)priv;
- (void)dev;
return -ENOTSUP;
}
int __attribute__((weak))
-priv_check_vec_tx_support(struct priv *priv, struct rte_eth_dev *dev)
+mlx5_check_vec_tx_support(struct rte_eth_dev *dev __rte_unused)
{
- (void)priv;
- (void)dev;
return -ENOTSUP;
}
int __attribute__((weak))
-rxq_check_vec_support(struct mlx5_rxq_data *rxq)
+mlx5_rxq_check_vec_support(struct mlx5_rxq_data *rxq __rte_unused)
{
- (void)rxq;
return -ENOTSUP;
}
int __attribute__((weak))
-priv_check_vec_rx_support(struct priv *priv)
+mlx5_check_vec_rx_support(struct rte_eth_dev *dev __rte_unused)
{
- (void)priv;
return -ENOTSUP;
}