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Re: [Qemu-devel] [PATCH] libqos: Account for the ctrl queue in virtio-ne


From: Oleinik, Alexander
Subject: Re: [Qemu-devel] [PATCH] libqos: Account for the ctrl queue in virtio-net
Date: Mon, 5 Aug 2019 07:12:30 +0000

On Mon, 2019-08-05 at 03:24 +0000, Oleinik, Alexander wrote:
> The number of queues is 2n+1, where n == 1 when multiqueue is
> disabled
> 
> Signed-off-by: Alexander Oleinik <address@hidden>
> ---
> 
> I split this commit out of the fuzz patch-series.
> 
>  tests/libqos/virtio-net.c | 1 +
>  tests/libqos/virtio-net.h | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/libqos/virtio-net.c b/tests/libqos/virtio-net.c
> index 66405b646e..b8b5bc5dfc 100644
> --- a/tests/libqos/virtio-net.c
> +++ b/tests/libqos/virtio-net.c
> @@ -53,6 +53,7 @@ static void virtio_net_setup(QVirtioNet *interface)
>      } else {
>          interface->n_queues = 2;
>      }
> +    interface->n_queues++; /* Account for the ctrl queue */
>  
>      interface->queues = g_new(QVirtQueue *, interface->n_queues);
>      for (i = 0; i < interface->n_queues; i++) {
> diff --git a/tests/libqos/virtio-net.h b/tests/libqos/virtio-net.h
> index a5697d7326..855c67d00f 100644
> --- a/tests/libqos/virtio-net.h
> +++ b/tests/libqos/virtio-net.h
> @@ -29,7 +29,7 @@ typedef struct QVirtioNetDevice QVirtioNetDevice;
>  
>  struct QVirtioNet {
>      QVirtioDevice *vdev;
> -    int n_queues;
> +    int n_queues; /* total number of virtqueues (rx, tx, ctrl) */
>      QVirtQueue **queues;
>  };
>  
Sorry about the typo.

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