Offset in a MPRQ buffer must be calculated before updating the stride
index.
Fixes: f0d61f8f8953 ("net/mlx5: add Multi-Packet Rx support")
Signed-off-by: Yongseok Koh <ys...@mellanox.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index d960a73d5..387463792 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -2146,6 +2146,8 @@ mlx5_rx_burst_mprq(void *dpdk_rxq, struct rte_mbuf
**pkts, uint16_t pkts_n)
consumed_strd = (byte_cnt & MLX5_MPRQ_STRIDE_NUM_MASK) >>
MLX5_MPRQ_STRIDE_NUM_SHIFT;
assert(consumed_strd);
+ /* Calculate offset before adding up stride index. */
+ offset = strd_idx * strd_sz + strd_shift;
strd_idx += consumed_strd;
if (byte_cnt & MLX5_MPRQ_FILLER_MASK)
continue;
@@ -2169,7 +2171,6 @@ mlx5_rx_burst_mprq(void *dpdk_rxq, struct rte_mbuf
**pkts, uint16_t pkts_n)
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;
--
2.11.0
