The data_off field of newly allocated mbufs is stale data. This shouldn't
be used in calculating Rx address for device when posting free buffers.
RTE_PKTMBUF_HEADROOM should be used instead and data_off of a mbuf will be
reset on packet reception anyway.
Fixes: 6cb559d67b83 ("net/mlx5: add vectorized Rx/Tx burst for x86")
Signed-off-by: Yongseok Koh <ys...@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranje...@6wind.com>
---
drivers/net/mlx5/mlx5_rxtx_vec_sse.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c
b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c
index 74e595386..9be48a0c9 100644
--- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c
+++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c
@@ -568,7 +568,8 @@ rxq_replenish_bulk_mbuf(struct rxq *rxq, uint16_t n)
return;
}
for (i = 0; i < n; ++i)
- wq[i].addr = htonll(rte_pktmbuf_mtod(elts[i], uintptr_t));
+ wq[i].addr = htonll((uintptr_t)elts[i]->buf_addr +
+ RTE_PKTMBUF_HEADROOM);
rxq->rq_ci += n;
rte_wmb();
*rxq->rq_db = htonl(rxq->rq_ci);
--
2.11.0
