[dpdk-dev] [PATCH v3 2/2] net/virtio: add link speed devarg
Tiwei Bie
tiwei.bie at intel.com
Wed Feb 12 11:35:36 CET 2020
On Fri, Feb 07, 2020 at 02:25:26PM +0300, Ivan Dyukov wrote:
> Some applications like pktgen use link_speed to calculate
> transmit rate. It limits outcome traffic to hardcoded 10G.
>
> This patch adds link_speed devarg which allows to configure
> link_speed of virtio device.
>
> Signed-off-by: Ivan Dyukov <i.dyukov at samsung.com>
> ---
> doc/guides/nics/virtio.rst | 7 ++
> drivers/net/virtio/virtio_ethdev.c | 101 ++++++++++++++++++++++++-----
> drivers/net/virtio/virtio_pci.h | 1 +
> 3 files changed, 92 insertions(+), 17 deletions(-)
Maybe I missed something.. Why not enable the VIRTIO_NET_F_SPEED_DUPLEX
support directly? When that feature is supported and negotiated,
we will ignore this devarg?
If we want this devarg, it looks better to support it in virtio-user
as well (most code is shared between virtio-PMD and virtio-user).
Thanks!
Tiwei
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