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From: zhihongx.peng@intel.com
To: chenbo.xia@intel.com, maxime.coquelin@redhat.com
Cc: dev@dpdk.org, ivan.ilchenko@oktetlabs.ru,
	Zhihong Peng <zhihongx.peng@intel.com>,
	stable@dpdk.org
Subject: [dpdk-dev] [PATCH v2] net/virtio: fix check scatter on all Rx queues
Date: Fri,  8 Oct 2021 05:49:45 +0000	[thread overview]
Message-ID: <20211008054945.368548-1-zhihongx.peng@intel.com> (raw)
In-Reply-To: <20210804083128.64981-1-zhihongx.peng@intel.com>

From: Zhihong Peng <zhihongx.peng@intel.com>

This patch fixes the wrong way to obtain virtqueue.
The end of virtqueue cannot be judged based on whether
the array is NULL.

Fixes: 4e8169eb0d2d (net/virtio: fix Rx scatter offload)
Cc: stable@dpdk.org

Signed-off-by: Zhihong Peng <zhihongx.peng@intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index b60eeb24ab..213110cff4 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -888,8 +888,11 @@ virtio_check_scatter_on_all_rx_queues(struct rte_eth_dev *dev,
 	if (hw->vqs == NULL)
 		return true;
 
-	for (qidx = 0; (vq = hw->vqs[2 * qidx + VTNET_SQ_RQ_QUEUE_IDX]) != NULL;
-	     qidx++) {
+	for (qidx = 0; qidx < hw->max_queue_pairs; qidx++) {
+		vq = hw->vqs[2 * qidx + VTNET_SQ_RQ_QUEUE_IDX];
+		if (vq == NULL)
+			continue;
+
 		rxvq = &vq->rxq;
 		if (rxvq->mpool == NULL)
 			continue;
-- 
2.25.1


  parent reply	other threads:[~2021-10-08  6:00 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-04  8:31 [dpdk-dev] [DPDK] " zhihongx.peng
2021-09-13 15:34 ` Maxime Coquelin
2021-09-15 18:37 ` [dpdk-dev] [dpdk-stable] " David Marchand
2021-09-21 17:45   ` Kevin Traynor
2021-09-22  8:13     ` Peng, ZhihongX
2021-09-30 18:43       ` David Marchand
2021-10-08  5:49 ` zhihongx.peng [this message]
2021-10-11  2:22   ` [dpdk-dev] [PATCH v2] " Peng, ZhihongX
2021-10-11  2:25   ` Peng, ZhihongX
2021-10-12  7:44   ` Maxime Coquelin
2021-10-21 12:26   ` Maxime Coquelin

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