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From: Shahaf Shuler <shahafs@mellanox.com>
To: nelio.laranjeiro@6wind.com, yskoh@mellanox.com,
	adrien.mazarguil@6wind.com
Cc: dev@dpdk.org, stable@dpdk.org
Subject: [dpdk-stable] [PATCH 4/5] net/mlx5: fix memory registration cache last index
Date: Tue, 23 Jan 2018 19:08:22 +0200	[thread overview]
Message-ID: <fdd12318a13867d2bd06b26aaee34f28cea787b4.1516727100.git.shahafs@mellanox.com> (raw)
In-Reply-To: <cover.1516727100.git.shahafs@mellanox.com>

In case memory registration 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: 6cb559d67b83 ("net/mlx5: add vectorized Rx/Tx burst for x86")
Cc: stable@dpdk.org
Cc: yskoh@mellanox.com

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
---
 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 2934f9fb3..4bedfb89b 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -572,7 +572,6 @@ mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf *mb)
 			return txq->mp2mr[i]->lkey;
 		}
 	}
-	txq->mr_cache_idx = 0;
 	mp = mlx5_tx_mb2mp(mb);
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 		WARN("Using unregistered mempool 0x%p(%s) in secondary process,"
@@ -588,6 +587,7 @@ 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 {
 		WARN("Failed to register mempool 0x%p(%s)",
-- 
2.12.0

  parent reply	other threads:[~2018-01-23 17:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1516727100.git.shahafs@mellanox.com>
2018-01-23 17:08 ` [dpdk-stable] [PATCH 1/5] net/mlx5: fix Memory Region cache lookup Shahaf Shuler
2018-01-23 17:08 ` [dpdk-stable] [PATCH 2/5] net/mlx5: fix secondary process mempool registration Shahaf Shuler
2018-01-24  8:14   ` Nélio Laranjeiro
2018-01-24 13:37     ` Shahaf Shuler
2018-01-23 17:08 ` Shahaf Shuler [this message]
     [not found] ` <cover.1516896871.git.shahafs@mellanox.com>
2018-01-25 16:17   ` [dpdk-stable] [PATCH v2 1/6] net/mlx5: fix Memory Region cache lookup Shahaf Shuler
2018-01-25 16:17   ` [dpdk-stable] [PATCH v2 2/6] net/mlx5: fix secondary process mempool registration Shahaf Shuler
2018-01-25 16:18   ` [dpdk-stable] [PATCH v2 5/6] net/mlx5: fix Memory Region cache last index Shahaf Shuler

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