[dpdk-stable] patch 'net/virtio: reject deferred Tx start' has been queued to LTS release 18.11.6

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/16/19. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/4ce6b6a7fe4498c12c95460619aa1112bb820475

Thanks.

Kevin.

---
>From 4ce6b6a7fe4498c12c95460619aa1112bb820475 Mon Sep 17 00:00:00 2001
From: Dilshod Urazov <dilshod.urazov at oktetlabs.ru>
Date: Wed, 9 Oct 2019 13:32:06 +0100
Subject: [PATCH] net/virtio: reject deferred Tx start

[ upstream commit c0e03310ee90c5d7aff9fffb243f3374f0b0cd61 ]

Deferred start Tx queue is not supported by the driver.

Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")

Signed-off-by: Dilshod Urazov <dilshod.urazov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Tiwei Bie <tiwei.bie at intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.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 c7df33829..306009d96 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -688,4 +688,9 @@ 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;
-- 
2.21.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-12-10 14:49:41.013963172 +0000
+++ 0028-net-virtio-reject-deferred-Tx-start.patch	2019-12-10 14:49:39.038458028 +0000
@@ -1 +1 @@
-From c0e03310ee90c5d7aff9fffb243f3374f0b0cd61 Mon Sep 17 00:00:00 2001
+From 4ce6b6a7fe4498c12c95460619aa1112bb820475 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit c0e03310ee90c5d7aff9fffb243f3374f0b0cd61 ]
+
@@ -9 +10,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index 405c313f2..0959250a3 100644
+index c7df33829..306009d96 100644
@@ -23 +24 @@
-@@ -1068,4 +1068,9 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
+@@ -688,4 +688,9 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,