search for: tun16_to_cpu

Hi, This patches introduce virtio_net_hdr_{from,to}_skb functions for conversion of GSO information between skb and virtio_net_hdr. Mike Rapoport (6): virtio_net: add _UAPI prefix to virtio_net header guards virtio_net: introduce virtio_net_hdr_{from,to}_skb macvtap: use common code for virtio_net_hdr and skb GSO conversion tuntap: use common code for virtio_net_hdr and skb GSO

Hi, This patches introduce virtio_net_hdr_{from,to}_skb functions for conversion of GSO information between skb and virtio_net_hdr. Mike Rapoport (6): virtio_net: add _UAPI prefix to virtio_net header guards virtio_net: introduce virtio_net_hdr_{from,to}_skb macvtap: use common code for virtio_net_hdr and skb GSO conversion tuntap: use common code for virtio_net_hdr and skb GSO

...ct tun_struct { > > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > - return tun->flags & TUN_VNET_LE; > + if (tun->flags & TUN_VNET_LE) > + return true; > + return virtio_legacy_is_little_endian(); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index 6a49960..4e9a186 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int...

...ct tun_struct { > > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > - return tun->flags & TUN_VNET_LE; > + if (tun->flags & TUN_VNET_LE) > + return true; > + return virtio_legacy_is_little_endian(); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index 6a49960..4e9a186 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int...

...ct tun_struct { > > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > - return tun->flags & TUN_VNET_LE; > + if (tun->flags & TUN_VNET_LE) > + return true; > + return virtio_legacy_is_little_endian(); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index 6a49960..4e9a186 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int...

...ct tun_struct { > > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > - return tun->flags & TUN_VNET_LE; > + if (tun->flags & TUN_VNET_LE) > + return true; > + return virtio_legacy_is_little_endian(); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index 6a49960..4e9a186 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int...

...c b/drivers/net/tun.c index 857dca4..3c3d6c0 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -206,14 +206,19 @@ struct tun_struct { u32 flow_count; }; +static inline bool tun_is_little_endian(struct tun_struct *tun) +{ + return tun->flags & TUN_VNET_LE; +} + static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) { - return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val); + return __virtio16_to_cpu(tun_is_little_endian(tun), val); } static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val) { - return __cpu_to_virtio16(tun->flags & TUN...

...c b/drivers/net/tun.c index 857dca4..3c3d6c0 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -206,14 +206,19 @@ struct tun_struct { u32 flow_count; }; +static inline bool tun_is_little_endian(struct tun_struct *tun) +{ + return tun->flags & TUN_VNET_LE; +} + static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) { - return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val); + return __virtio16_to_cpu(tun_is_little_endian(tun), val); } static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val) { - return __cpu_to_virtio16(tun->flags & TUN...

...a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -206,14 +206,19 @@ struct tun_struct { > u32 flow_count; > }; > > +static inline bool tun_is_little_endian(struct tun_struct *tun) > +{ > + return tun->flags & TUN_VNET_LE; > +} > + > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > { > - return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val); > + return __virtio16_to_cpu(tun_is_little_endian(tun), val); > } > > static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val) > { > - return _...

...a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -206,14 +206,19 @@ struct tun_struct { > u32 flow_count; > }; > > +static inline bool tun_is_little_endian(struct tun_struct *tun) > +{ > + return tun->flags & TUN_VNET_LE; > +} > + > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > { > - return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val); > + return __virtio16_to_cpu(tun_is_little_endian(tun), val); > } > > static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val) > { > - return _...

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is compatible with modern virtio and can be fully compiled out through kernel config. FWIW, I could flawlessly kexec/reboot guests from ppc64 to ppc64le and back. I could also migrate from a ppc64 to a ppc64le host and back. No regressions on x86 as expected. My experimental QEMU tree

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is compatible with modern virtio and can be fully compiled out through kernel config. FWIW, I could flawlessly kexec/reboot guests from ppc64 to ppc64le and back. I could also migrate from a ppc64 to a ppc64le host and back. No regressions on x86 as expected. My experimental QEMU tree

...} > +#endif > + > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > if (tun->flags & TUN_VNET_LE) > return true; > - return virtio_legacy_is_little_endian(); > + return tun_legacy_is_little_endian(tun); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > @@ -1836,6 +1851,43 @@ unlock: > return ret; > } > > +#ifdef CONFIG_TUN_VNET_BE > +static long tun_get_vnet_be(struct tun_struct *tun, int __user *argp) > +{ > + int be = !!(tun->flags & TUN_VNET_BE); > + > + if (pu...

...} > +#endif > + > static inline bool tun_is_little_endian(struct tun_struct *tun) > { > if (tun->flags & TUN_VNET_LE) > return true; > - return virtio_legacy_is_little_endian(); > + return tun_legacy_is_little_endian(tun); > } > > static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) > @@ -1836,6 +1851,43 @@ unlock: > return ret; > } > > +#ifdef CONFIG_TUN_VNET_BE > +static long tun_get_vnet_be(struct tun_struct *tun, int __user *argp) > +{ > + int be = !!(tun->flags & TUN_VNET_BE); > + > + if (pu...

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patch 7 got rewritten according to Cornelia's and Michael's comments. I have also introduced patch 8 that brings BE vnet headers support to tun/macvtap. This series is enough to have vhost_net working flawlessly. I could succesfully reboot guests from ppc64 to ppc64le and

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patch 7 got rewritten according to Cornelia's and Michael's comments. I have also introduced patch 8 that brings BE vnet headers support to tun/macvtap. This series is enough to have vhost_net working flawlessly. I could succesfully reboot guests from ppc64 to ppc64le and

...c +++ b/drivers/net/tun.c @@ -208,7 +208,9 @@ struct tun_struct { static inline bool tun_is_little_endian(struct tun_struct *tun) { - return tun->flags & TUN_VNET_LE; + if (tun->flags & TUN_VNET_LE) + return true; + return virtio_legacy_is_little_endian(); } static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 6a49960..4e9a186 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) static inline boo...

...c +++ b/drivers/net/tun.c @@ -208,7 +208,9 @@ struct tun_struct { static inline bool tun_is_little_endian(struct tun_struct *tun) { - return tun->flags & TUN_VNET_LE; + if (tun->flags & TUN_VNET_LE) + return true; + return virtio_legacy_is_little_endian(); } static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 6a49960..4e9a186 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) static inline boo...

.../drivers/net/tun.c +++ b/drivers/net/tun.c @@ -208,7 +208,8 @@ struct tun_struct { static inline bool tun_is_little_endian(struct tun_struct *tun) { - return tun->flags & TUN_VNET_LE; + return tun->flags & TUN_VNET_LE || + virtio_legacy_is_little_endian(); } static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 6a49960..a4fa33a 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -175,7 +175,8 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) static inline boo...

...rivers/net/tun.c @@ -208,7 +208,10 @@ struct tun_struct { static inline bool tun_is_little_endian(struct tun_struct *tun) { - return tun->flags & TUN_VNET_LE; + if (tun->flags & TUN_VNET_LE) + return true; + else + return virtio_legacy_is_little_endian(); } static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 6a49960..954c657 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -175,7 +175,7 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) static inline boo...