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net/mlx5: support Rx buffer split on datapath

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Only the regular rx_burst routine is updated to support split,
because the vectorized ones does not support scatter and MPRQ
does not support split at all.

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
This commit is contained in:
Viacheslav Ovsiienko 2020-10-26 11:55:03 +00:00 committed by Ferruh Yigit
parent 213e2727a2
commit 7f1620082b
2 changed files with 7 additions and 7 deletions
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11
drivers/net/mlx5/mlx5_rxq.c
View File

@ -212,9 +212,10 @@ rxq_alloc_elts_sprq(struct mlx5_rxq_ctrl *rxq_ctrl)
/* Iterate on segments. */
for (i = 0; (i != elts_n); ++i) {
struct mlx5_eth_rxseg *seg = &rxq_ctrl->rxq.rxseg[i % sges_n];
struct rte_mbuf *buf;
buf = rte_pktmbuf_alloc(rxq_ctrl->rxq.mp);
buf = rte_pktmbuf_alloc(seg->mp);
if (buf == NULL) {
DRV_LOG(ERR, "port %u empty mbuf pool",
PORT_ID(rxq_ctrl->priv));
@ -227,12 +228,10 @@ rxq_alloc_elts_sprq(struct mlx5_rxq_ctrl *rxq_ctrl)
MLX5_ASSERT(rte_pktmbuf_data_len(buf) == 0);
MLX5_ASSERT(rte_pktmbuf_pkt_len(buf) == 0);
MLX5_ASSERT(!buf->next);
/* Only the first segment keeps headroom. */
if (i % sges_n)
SET_DATA_OFF(buf, 0);
SET_DATA_OFF(buf, seg->offset);
PORT(buf) = rxq_ctrl->rxq.port_id;
DATA_LEN(buf) = rte_pktmbuf_tailroom(buf);
PKT_LEN(buf) = DATA_LEN(buf);
DATA_LEN(buf) = seg->length;
PKT_LEN(buf) = seg->length;
NB_SEGS(buf) = 1;
(*rxq_ctrl->rxq.elts)[i] = buf;
}

3
drivers/net/mlx5/mlx5_rxtx.c
View File

@ -1356,7 +1356,8 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
rte_prefetch0(seg);
rte_prefetch0(cqe);
rte_prefetch0(wqe);
rep = rte_mbuf_raw_alloc(rxq->mp);
/* Allocate the buf from the same pool. */
rep = rte_mbuf_raw_alloc(seg->pool);
if (unlikely(rep == NULL)) {
++rxq->stats.rx_nombuf;
if (!pkt) {