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From: Andrew Rybchenko <arybchenko@solarflare.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>, Tiwei Bie
<tiwei.bie@intel.com>, Zhihong Wang <zhihong.wang@intel.com>
CC: <dev@dpdk.org>, Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>,
<stable@dpdk.org>
Date: Tue, 1 Oct 2019 16:44:30 +0100
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Subject: [dpdk-stable] [PATCH 2/3] net/virtio: reject deferred start Tx
queue setup
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From: Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>
Deferred start Tx queue is not supported by the driver.
Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")
Cc: stable@dpdk.org
Signed-off-by: Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
drivers/net/virtio/virtio_rxtx.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 9c8c617f7..af3f350a8 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -1057,6 +1057,11 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
PMD_INIT_FUNC_TRACE();
+ if (tx_conf->tx_deferred_start) {
+ PMD_INIT_LOG(ERR, "Tx deferred start is not supported");
+ return -EINVAL;
+ }
+
if (nb_desc == 0 || nb_desc > vq->vq_nentries)
nb_desc = vq->vq_nentries;
vq->vq_free_cnt = RTE_MIN(vq->vq_free_cnt, nb_desc);
--
2.17.1