In case Memory Region cache is full, the new mempool will be
inserted in the last index of the array.
Update the last entry being hit to reflect it.
Fixes: b0b093845793 ("net/mlx5: use buffer address for LKEY search")
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Xueming Li <[email protected]>
Signed-off-by: Shahaf Shuler <[email protected]>
Acked-by: Nelio Laranjeiro <[email protected]>
---
drivers/net/mlx5/mlx5_rxtx.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index e6d163a59..7e7db0e8c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -567,7 +567,6 @@ mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf
*mb)
return txq->mp2mr[i]->lkey;
}
}
- txq->mr_cache_idx = 0;
mr = mlx5_txq_mp2mr_reg(txq, mlx5_tx_mb2mp(mb), i);
/*
* Request the reference to use in this queue, the original one is
@@ -575,6 +574,7 @@ mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf
*mb)
*/
if (mr) {
rte_atomic32_inc(&mr->refcnt);
+ txq->mr_cache_idx = i >= RTE_DIM(txq->mp2mr) ? i - 1 : i;
return mr->lkey;
} else {
struct rte_mempool *mp = mlx5_tx_mb2mp(mb);
--
2.12.0
