search for: virtio_net

From: Maciej Fijalkowski <macfij7 at wp.pl> Signed-off-by: Maciej Fijalkowski <macfij7 at wp.pl> --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 9320d96..f20dfb8 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -217,7 +217,8 @@ static void give_pages(struct receive_queue *rq, struct page *p...

From: Maciej Fijalkowski <macfij7 at wp.pl> Signed-off-by: Maciej Fijalkowski <macfij7 at wp.pl> --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 9320d96..f20dfb8 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -217,7 +217,8 @@ static void give_pages(struct receive_queue *rq, struct page *p...

On Mon, Apr 02, 2018 at 09:40:02AM -0400, Vladislav Yasevich wrote: > To support SCTP checksum offloading, we need to add a new feature > to virtio_net, so we can negotiate support between the hypervisor > and the guest. > > The signalling to the guest that an alternate checksum needs to > be used is done via a new flag in the virtio_net_hdr. If the > flag is set, the host will know to perform an alternate checksum > calculatio...

On Mon, Apr 02, 2018 at 09:40:02AM -0400, Vladislav Yasevich wrote: > To support SCTP checksum offloading, we need to add a new feature > to virtio_net, so we can negotiate support between the hypervisor > and the guest. > > The signalling to the guest that an alternate checksum needs to > be used is done via a new flag in the virtio_net_hdr. If the > flag is set, the host will know to perform an alternate checksum > calculatio...

...s-should-be-on-next-line/20170515-021304 config: x86_64-acpi-redef (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): drivers//net/virtio_net.c:2647:20: warning: left-hand operand of comma expression has no effect [-Wunused-value] (VIRTIO_NET_F_CSUM, VIRTIO_NET_F_GUEST_CSUM, \ ^ >> drivers//net/virtio_net.c:2659:2: note: in expansion of macro 'VIRTNET_FEATURES' VIRTNET_FEATURES, ^~~~~~~...

This feature bit can be used by hypervisor to indicate virtio_net device to act as a master for a directly attached passthru device with the same MAC address. Signed-off-by: Sridhar Samudrala <sridhar.samudrala at intel.com> --- drivers/net/virtio_net.c | 3 ++- include/uapi/linux/virtio_net.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-)...

They can be easy to reproduce, if you try to unload virtio-net Andrey Vagin (2): virtio-net: determine type of bufs correctly virtio: delete napi objects from netdev before releasing memory drivers/net/virtio_net.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> -- 1.8.3.1

They can be easy to reproduce, if you try to unload virtio-net Andrey Vagin (2): virtio-net: determine type of bufs correctly virtio: delete napi objects from netdev before releasing memory drivers/net/virtio_net.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> -- 1.8.3.1

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...

...irtio-net mergeable XDP. Thanks Jason Wang (4): virtio-net: correctly redirect linearized packet virtio-net: correctly transmit XDP buff after linearizing virtio-net: reset num_buf to 1 after linearizing packet virito-net: fix leaking page for gso packet during mergeable XDP drivers/net/virtio_net.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) -- 2.7.4

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/l...

On Thu, Jan 11, 2018 at 9:58 PM, Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > This feature bit can be used by hypervisor to indicate virtio_net device to > act as a backup for another device with the same MAC address. > > Signed-off-by: Sridhar Samudrala <sridhar.samudrala at intel.com> > --- > drivers/net/virtio_net.c | 2 +- > include/uapi/linux/virtio_net.h | 3 +++ > 2 files changed, 4 insertions(+),...

On Thu, Jan 11, 2018 at 9:58 PM, Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > This feature bit can be used by hypervisor to indicate virtio_net device to > act as a backup for another device with the same MAC address. > > Signed-off-by: Sridhar Samudrala <sridhar.samudrala at intel.com> > --- > drivers/net/virtio_net.c | 2 +- > include/uapi/linux/virtio_net.h | 3 +++ > 2 files changed, 4 insertions(+),...

commit d85b758f72b0 "virtio_net: fix support for small rings" was supposed to increase the buffer size for small rings but had an unintentional side effect of decreasing it for large rings. This seems to break some setups - it's not yet clear why, but increasing buffer size back to what it was before helps. Fixes: d85b7...

commit d85b758f72b0 "virtio_net: fix support for small rings" was supposed to increase the buffer size for small rings but had an unintentional side effect of decreasing it for large rings. This seems to break some setups - it's not yet clear why, but increasing buffer size back to what it was before helps. Fixes: d85b7...

From: Jiri Pirko <jiri at nvidia.com> virtio_net_hdr_from_skb() fills up hdr_len to skb_headlen(skb). Virtio spec introduced a feature VIRTIO_NET_F_GUEST_HDRLEN which when set implicates that the driver provides the exact size of the header. The driver already complies to fill the correct value. Introduce the feature and advertise it. Signed-o...

...are of virtio net. I have addition patches for the host side (vhost and tap/macvtap as well as qemu), but wanted to get feedback on the general approach first. Vladislav Yasevich (6): virtio-net: Remove the use the padded vnet_header structure virtio-net: make header length handling uniform virtio_net: Add basic skeleton for handling vnet header extensions. virtio-net: Add support for IPv6 fragment id vnet header extension. virtio-net: Add support for vlan acceleration vnet header extension. virtio-net: Add support for UDP tunnel offload and extension. drivers/net/virtio_net.c | 1...

...are of virtio net. I have addition patches for the host side (vhost and tap/macvtap as well as qemu), but wanted to get feedback on the general approach first. Vladislav Yasevich (6): virtio-net: Remove the use the padded vnet_header structure virtio-net: make header length handling uniform virtio_net: Add basic skeleton for handling vnet header extensions. virtio-net: Add support for IPv6 fragment id vnet header extension. virtio-net: Add support for vlan acceleration vnet header extension. virtio-net: Add support for UDP tunnel offload and extension. drivers/net/virtio_net.c | 1...

...MERGEABLE_BUFFER_ALIGN will need more than 8 bit and so the code in mergeable_ctx_to_buf_address does not give us the actual true size. Cc: John Fastabend <john.fastabend at gmail.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Lightly tested on x86 only. drivers/net/virtio_net.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 4a10500..5e3b07e 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -48,8 +48,16 @@ module_param(gso, bool, 0444); */ DECLARE_EWMA(pkt_le...

...MERGEABLE_BUFFER_ALIGN will need more than 8 bit and so the code in mergeable_ctx_to_buf_address does not give us the actual true size. Cc: John Fastabend <john.fastabend at gmail.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Lightly tested on x86 only. drivers/net/virtio_net.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 4a10500..5e3b07e 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -48,8 +48,16 @@ module_param(gso, bool, 0444); */ DECLARE_EWMA(pkt_le...