search for: csum_not_inet

...evice offload features. > > > The GUEST feature bit signifies offloading support of recieve and > > > is currently only used by the driver in case of xdp. > > > > > > That patch also adds an addition virtio_net header flag which > > > mirrors the skb->csum_not_inet flag. This flags is used to indicate > > > that is this an SCTP packet that needs its checksum computed by the > > > lower layer. In this case, the lower layer is the host hypervisor or > > > possibly HW nic that supporst CRC32c offload. > > > > > > In...

...> --- a/include/linux/virtio_net.h > +++ b/include/linux/virtio_net.h > @@ -39,6 +39,9 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, > > if (!skb_partial_csum_set(skb, start, off)) > return -EINVAL; > + > + if (hdr->flags & VIRTIO_NET_HDR_F_CSUM_NOT_INET) > + skb->csum_not_inet = 1; > } > > if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { > @@ -96,6 +99,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, > hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID; > } /* else everything is zero */ >...

...> --- a/include/linux/virtio_net.h > +++ b/include/linux/virtio_net.h > @@ -39,6 +39,9 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, > > if (!skb_partial_csum_set(skb, start, off)) > return -EINVAL; > + > + if (hdr->flags & VIRTIO_NET_HDR_F_CSUM_NOT_INET) > + skb->csum_not_inet = 1; > } > > if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { > @@ -96,6 +99,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, > hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID; > } /* else everything is zero */ >...

...CTP checksum. We need a new freature in virtio to negotiate this support since SCTP is excluded with the stardard checksum and requires a little bit extra. This series proposes VIRTIO_NET_F_SCTP_CSUM feature bit. As the "little bit extra", the kernel uses a new bit in the skb (skb->csum_not_inet) to determine whether to use standard inet checksum or the SCTP CRC32c checksum. This bit has to be communicated between the host and the guest. This bit is carried in the vnet header. Tap and macvtap support is added through an extra feature for the TUNSETOFFLOAD ioctl. Additionally macvtap wi...

...CTP checksum. We need a new freature in virtio to negotiate this support since SCTP is excluded with the stardard checksum and requires a little bit extra. This series proposes VIRTIO_NET_F_SCTP_CSUM feature bit. As the "little bit extra", the kernel uses a new bit in the skb (skb->csum_not_inet) to determine whether to use standard inet checksum or the SCTP CRC32c checksum. This bit has to be communicated between the host and the guest. This bit is carried in the vnet header. Tap and macvtap support is added through an extra feature for the TUNSETOFFLOAD ioctl. Additionally macvtap wi...

...HOST feature bit signifies offloading support for transmit and enables device offload features. The GUEST feature bit signifies offloading support of recieve and is currently only used by the driver in case of xdp. That patch also adds an addition virtio_net header flag which mirrors the skb->csum_not_inet flag. This flags is used to indicate that is this an SCTP packet that needs its checksum computed by the lower layer. In this case, the lower layer is the host hypervisor or possibly HW nic that supporst CRC32c offload. In the case that GUEST feature bit is flag, it will be possible to receive a...

...de/linux/virtio_net.h > >> @@ -39,6 +39,9 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, > >> > >> if (!skb_partial_csum_set(skb, start, off)) > >> return -EINVAL; > >> + > >> + if (hdr->flags & VIRTIO_NET_HDR_F_CSUM_NOT_INET) > >> + skb->csum_not_inet = 1; > >> } > >> > >> if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { > >> @@ -96,6 +99,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, > >> hdr->flags = VIRTIO_NET_HDR_F_D...

...CTP checksum. We need a new freature in virtio to negotiate this support since SCTP is excluded with the stardard checksum and requires a little bit extra. This series proposes VIRTIO_NET_F_SCTP_CSUM feature bit. As the "little bit extra", the kernel uses a new bit in the skb (skb->csum_not_inet) to determine whether to use standard inet checksum or the SCTP CRC32c checksum. This bit has to be communicated between the host and the guest. This bit is carried in the vnet header. Tap and macvtap support is added through an extra feature for the TUNSETOFFLOAD ioctl. Additionally macvtap wi...

...tio_net.h index f144216..2e7a64a 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -39,6 +39,9 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, if (!skb_partial_csum_set(skb, start, off)) return -EINVAL; + + if (hdr->flags & VIRTIO_NET_HDR_F_CSUM_NOT_INET) + skb->csum_not_inet = 1; } if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { @@ -96,6 +99,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID; } /* else everything is zero */ + if (skb->csum_not_inet) + hdr-&...

...tio_net.h >> +++ b/include/linux/virtio_net.h >> @@ -39,6 +39,9 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, >> >> if (!skb_partial_csum_set(skb, start, off)) >> return -EINVAL; >> + >> + if (hdr->flags & VIRTIO_NET_HDR_F_CSUM_NOT_INET) >> + skb->csum_not_inet = 1; >> } >> >> if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { >> @@ -96,6 +99,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, >> hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID; >> } /* els...

tl;dr ===== This patchset adds a single bit to the skb to indicate that a packet encountered a layer 2 miss in the bridge and extends flower to match on this metadata. This is required for non-DF (Designated Forwarder) filtering in EVPN multi-homing which prevents decapsulated BUM packets from being forwarded multiple times to the same multi-homed host. Background ========== In a typical EVPN

tl;dr ===== This patchset adds a single bit to the skb to indicate that a packet encountered a layer 2 miss in the bridge and extends flower to match on this metadata. This is required for non-DF (Designated Forwarder) filtering in EVPN multi-homing which prevents decapsulated BUM packets from being forwarded multiple times to the same multi-homed host. Background ========== In a typical EVPN