45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From f5302062cbc98b3b8b1002cc48e7125a48ead96c Mon Sep 17 00:00:00 2001
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From: Jens Freimann <jfreimann@redhat.com>
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Date: Mon, 17 Dec 2018 22:31:38 +0100
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Subject: [PATCH 09/18] net/virtio-user: fail if cq used with packed vq
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[ upstream commit 07dd7e250d0128bf1edfd73e9d83bde09cdb11e9 ]
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Until we have support for control virtqueues let's disable it and
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fail device initalization if specified as a parameter.
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Signed-off-by: Jens Freimann <jfreimann@redhat.com>
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Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
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(cherry picked from commit 07dd7e250d0128bf1edfd73e9d83bde09cdb11e9)
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Signed-off-by: Jens Freimann <jfreimann@redhat.com>
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---
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drivers/net/virtio/virtio_user/virtio_user_dev.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
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index 77cec1d3c..2f75091d5 100644
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--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
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+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
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@@ -467,10 +467,16 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues,
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if (!in_order)
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dev->unsupported_features |= (1ull << VIRTIO_F_IN_ORDER);
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- if (packed_vq)
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+ if (packed_vq) {
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+ if (cq) {
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+ PMD_INIT_LOG(ERR, "control vq not supported yet with "
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+ "packed virtqueues\n");
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+ return -1;
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+ }
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dev->device_features |= (1ull << VIRTIO_F_RING_PACKED);
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- else
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+ } else {
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dev->device_features &= ~(1ull << VIRTIO_F_RING_PACKED);
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+ }
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if (dev->mac_specified) {
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dev->device_features |= (1ull << VIRTIO_NET_F_MAC);
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--
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2.21.0
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