linux-toradex.git/include/uapi/linux/virtio_net.h, branch v5.10-rc3

virtio_net: use LE accessors for speed/duplex

2020-08-05T15:08:41+00:00

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 
Signed-off-by: Michael S. Tsirkin

virtio_net: correct tags for config space fields

2020-08-05T15:08:40+00:00

Tag config space fields as having virtio endian-ness.

Signed-off-by: Michael S. Tsirkin

virtio-net: Introduce hash report feature

2020-03-23T13:50:02+00:00

The feature VIRTIO_NET_F_HASH_REPORT extends the
layout of the packet and requests the device to
calculate hash on incoming packets and report it
in the packet header.

Signed-off-by: Yuri Benditovich 
Link: https://lore.kernel.org/r/20200302115003.14877-4-yuri.benditovich@daynix.com
Signed-off-by: Michael S. Tsirkin

virtio-net: Introduce RSS receive steering feature

2020-03-23T13:50:02+00:00

RSS (Receive-side scaling) defines hash calculation
rules and decision on receive virtqueue according to
the calculated hash, provided mask to apply and
provided indirection table containing indices of
receive virqueues. The driver sends the control
command to enable multiqueue and provide parameters
for receive steering.

Signed-off-by: Yuri Benditovich 
Link: https://lore.kernel.org/r/20200302115003.14877-3-yuri.benditovich@daynix.com
Signed-off-by: Michael S. Tsirkin

virtio-net: Introduce extended RSC feature

2020-03-23T13:50:02+00:00

VIRTIO_NET_F_RSC_EXT feature bit indicates that the device
is able to provide extended RSC information. When the feature
is negotiatede and 'gso_type' field in received packet is not
GSO_NONE, the device reports number of coalesced packets in
'csum_start' field and number of duplicated acks in 'csum_offset'
field and sets VIRTIO_NET_HDR_F_RSC_INFO in 'flags' field.

Signed-off-by: Yuri Benditovich 
Link: https://lore.kernel.org/r/20200302115003.14877-2-yuri.benditovich@daynix.com
Signed-off-by: Michael S. Tsirkin

virtio_net: Introduce VIRTIO_NET_F_STANDBY feature bit

2018-05-29T02:59:54+00:00

This feature bit can be used by hypervisor to indicate virtio_net device to
act as a standby for another device with the same MAC address.

VIRTIO_NET_F_STANDBY is defined as bit 62 as it is a device feature bit.

Signed-off-by: Sridhar Samudrala 
Signed-off-by: David S. Miller

virtio_net: propagate linkspeed/duplex settings from the hypervisor

2018-01-09T16:37:56+00:00

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 to export a linkspeed and duplex setting. The user can
subsequently overwrite it later if desired via: 'ethtool -s'.

Note that VIRTIO_NET_F_SPEED_DUPLEX is defined as bit 63, the intention
is that device feature bits are to grow down from bit 63, since the
transports are starting from bit 24 and growing up.

Signed-off-by: Jason Baron 
Cc: "Michael S. Tsirkin" 
Cc: Jason Wang 
Cc: virtio-dev@lists.oasis-open.org
Signed-off-by: David S. Miller

virtio_net: add _UAPI prefix to virtio_net header guards

2016-06-11T06:03:55+00:00

This gives better namespacing and prevents conflicts with no-uapi version
of virtio_net header that will be introduced in the following patch.

Signed-off-by: Mike Rapoport 
Signed-off-by: David S. Miller

virtio_net: Update the feature bit to comply with spec

2016-06-10T06:35:26+00:00

A draft version of the MTU Advice feature bit was specified as 25.  This
bit is not within the allowed range for network device feature bits, and
should be changed to be feature bit 3 to fully comply with the spec.

Fixes 14de9d114a82 ('virtio-net: Add initial MTU advice feature')
Signed-off-by: Aaron Conole 
Suggested-by: "Michael S. Tsirkin" 
Signed-off-by: David S. Miller

virtio-net: Add initial MTU advice feature

2016-06-07T01:08:49+00:00

This commit adds the feature bit and associated mtu device entry for the
virtio network device.  When a virtio device comes up, it checks the
feature bit for the VIRTIO_NET_F_MTU feature.  If such feature bit is
enabled, the driver will read the advised MTU and use it as the initial
value.

Signed-off-by: Aaron Conole 
Signed-off-by: David S. Miller