[dpdk-dev] [PATCH] net/mlx5: return RSS hash result in mbuf
Nelio Laranjeiro
nelio.laranjeiro at 6wind.com
Wed Sep 14 10:16:05 CEST 2016
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
drivers/net/mlx5/mlx5_rxq.c | 1 +
drivers/net/mlx5/mlx5_rxtx.c | 6 +++++-
drivers/net/mlx5/mlx5_rxtx.h | 2 ++
3 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index f6f4315..65c264b 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -926,6 +926,7 @@ rxq_ctrl_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl,
.rxq = {
.elts_n = log2above(desc),
.mp = mp,
+ .rss_hash = !!(priv->rxqs_n > 1),
},
};
struct ibv_exp_wq_attr mod;
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index b91b644..17ae5e4 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1338,12 +1338,16 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
/* Update packet information. */
pkt->packet_type = 0;
pkt->ol_flags = 0;
+ if (rxq->rss_hash) {
+ pkt->hash.rss = ntohl(cqe->rx_hash_res);
+ pkt->ol_flags = PKT_RX_RSS_HASH;
+ }
if (rxq->csum | rxq->csum_l2tun | rxq->vlan_strip |
rxq->crc_present) {
if (rxq->csum) {
pkt->packet_type =
rxq_cq_to_pkt_type(cqe);
- pkt->ol_flags =
+ pkt->ol_flags |=
rxq_cq_to_ol_flags(rxq, cqe);
}
if (cqe->l4_hdr_type_etc &
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 9828aef..e813f38 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -113,6 +113,8 @@ struct rxq {
unsigned int cqe_n:4; /* Log 2 of CQ elements. */
unsigned int elts_n:4; /* Log 2 of Mbufs. */
unsigned int port_id:8;
+ unsigned int rss_hash:1; /* RSS hash result is enabled. */
+ unsigned int :9; /* Remaining bits. */
volatile uint32_t *rq_db;
volatile uint32_t *cq_db;
uint16_t rq_ci;
--
2.1.4
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