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vdpa/mlx5: Fix queue type selection logic
[ Upstream commit 879753c ] get_queue_type() comments that splict virtqueue is preferred, however, the actual logic preferred packed virtqueues. Since firmware has not supported packed virtqueues we ended up using split virtqueues as was desired. Since we do not advertise support for packed virtqueues, we add a check to verify split virtqueues are indeed supported. Fixes: 1a86b37 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices") Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210811053759.66752-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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