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From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com> This patch allows the user to set and retrieve speed and duplex of the virtio_net device via ethtool. Having this functionality is very helpful for simulating different environments and also enables the virtio_net device to participate in operations where proper speed and duplex are required (e.g. currently bonding lacp mode

From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com> This patch allows the user to set and retrieve speed and duplex of the virtio_net device via ethtool. Having this functionality is very helpful for simulating different environments and also enables the virtio_net device to participate in operations where proper speed and duplex are required (e.g. currently bonding lacp mode

On 02/02/2016 02:23 PM, Michael S. Tsirkin wrote: > On Tue, Feb 02, 2016 at 01:51:20PM +0100, Nikolay Aleksandrov wrote: >> From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com> >> >> This patch allows the user to set and retrieve speed and duplex of the >> virtio_net device via ethtool. Having this functionality is very helpful >> for simulating

On 02/02/2016 02:23 PM, Michael S. Tsirkin wrote: > On Tue, Feb 02, 2016 at 01:51:20PM +0100, Nikolay Aleksandrov wrote: >> From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com> >> >> This patch allows the user to set and retrieve speed and duplex of the >> virtio_net device via ethtool. Having this functionality is very helpful >> for simulating

On 01/04/2018 12:05 PM, Michael S. Tsirkin wrote: > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: >> The ability to set speed and duplex for virtio_net is useful in various >> scenarios as described here: >> >> 16032be virtio_net: add ethtool support for set and get of settings >> >> However, it would be nice to be able to set this from the

On 01/04/2018 12:05 PM, Michael S. Tsirkin wrote: > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: >> The ability to set speed and duplex for virtio_net is useful in various >> scenarios as described here: >> >> 16032be virtio_net: add ethtool support for set and get of settings >> >> However, it would be nice to be able to set this from the

The ability to set speed and duplex for virtio_net is useful in various scenarios as described here: 16032be virtio_net: add ethtool support for set and get of settings However, it would be nice to be able to set this from the hypervisor, such that virtio_net doesn't require custom guest ethtool commands. Introduce a new feature flag, VIRTIO_NET_F_SPEED_DUPLEX, which allows the hypervisor

We have found it useful to be able to set the linkspeed and duplex settings from the host-side for virtio_net. This obviates the need for guest changes and settings for these fields, and does not require custom ethtool commands for virtio_net. The ability to set linkspeed and duplex is useful in various cases as described here: 16032be virtio_net: add ethtool support for set and get of settings

We have found it useful to be able to set the linkspeed and duplex settings from the host-side for virtio_net. This obviates the need for guest changes and settings for these fields, and does not require custom ethtool commands for virtio_net. The ability to set linkspeed and duplex is useful in various cases as described here: 16032be virtio_net: add ethtool support for set and get of settings

Speed and duplex config fields depend on VIRTIO_NET_F_SPEED_DUPLEX which being 63>31 depends on VIRTIO_F_VERSION_1. Accordingly, use LE accessors for these fields. Reported-by: Cornelia Huck <cohuck at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/net/virtio_net.c | 9 +++++---- include/uapi/linux/virtio_net.h | 2 +- 2 files changed, 6

In prepartion for using some of the high order feature bits, make sure that virtio-net uses 64-bit values everywhere. Signed-off-by: Jason Baron <jbaron at akamai.com> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason Wang <jasowang at redhat.com> --- hw/net/virtio-net.c | 54 +++++++++++++++++++++--------------------- include/hw/virtio/virtio-net.h |

On 01/04/2018 11:27 AM, Michael S. Tsirkin wrote: > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: >> The ability to set speed and duplex for virtio_net is useful in various >> scenarios as described here: >> >> 16032be virtio_net: add ethtool support for set and get of settings >> >> However, it would be nice to be able to set this from the

On 01/04/2018 11:27 AM, Michael S. Tsirkin wrote: > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: >> The ability to set speed and duplex for virtio_net is useful in various >> scenarios as described here: >> >> 16032be virtio_net: add ethtool support for set and get of settings >> >> However, it would be nice to be able to set this from the

Although linkspeed and duplex can be set in a linux guest via 'ethtool -s', this requires custom ethtool commands for virtio-net by default. Introduce a new feature flag, VIRTIO_NET_F_SPEED_DUPLEX, which allows the hypervisor to export a linkspeed and duplex setting. The user can subsequently overwrite it later if desired via: 'ethtool -s'. Linkspeed and duplex settings can be

On Tue, Feb 02, 2016 at 01:51:20PM +0100, Nikolay Aleksandrov wrote: > From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com> > > This patch allows the user to set and retrieve speed and duplex of the > virtio_net device via ethtool. Having this functionality is very helpful > for simulating different environments and also enables the virtio_net > device to participate

On Thu, Jan 04, 2018 at 01:12:30PM -0500, Jason Baron wrote: > > > On 01/04/2018 12:05 PM, Michael S. Tsirkin wrote: > > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: > >> The ability to set speed and duplex for virtio_net is useful in various > >> scenarios as described here: > >> > >> 16032be virtio_net: add ethtool support for

On Thu, Jan 04, 2018 at 11:57:44AM -0500, Jason Baron wrote: > > > On 01/04/2018 11:27 AM, Michael S. Tsirkin wrote: > > On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: > >> The ability to set speed and duplex for virtio_net is useful in various > >> scenarios as described here: > >> > >> 16032be virtio_net: add ethtool support for

The ability to set speed and duplex for virtio_net is useful in various scenarios as described here: 16032be virtio_net: add ethtool support for set and get of settings However, it would be nice to be able to set this from the hypervisor, such that virtio_net doesn't require custom guest ethtool commands. Introduce a new feature flag, VIRTIO_NET_F_SPEED_DUPLEX, which allows the hypervisor

The ability to set speed and duplex for virtio_net in useful in various scenarios as described here: 16032be virtio_net: add ethtool support for set and get of settings However, it would be nice to be able to set this from the hypervisor, such that virtio_net doesn't require custom guest ethtool commands. Introduce a new feature flag, VIRTIO_NET_F_SPEED_DUPLEX, which allows the hypervisor

On Thu, Jan 04, 2018 at 12:16:44AM -0500, Jason Baron wrote: > The ability to set speed and duplex for virtio_net is useful in various > scenarios as described here: > > 16032be virtio_net: add ethtool support for set and get of settings > > However, it would be nice to be able to set this from the hypervisor, > such that virtio_net doesn't require custom guest ethtool