search for: 053f9b6

...gacy_is_little_endian(); > } > > static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) Hmm I'm not sure how well this will work once you actually make it dynamic. Remains to be seen. > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 3c3d6c0..053f9b6 100644 > --- a/drivers/net/tun.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) > + retur...

...gacy_is_little_endian(); > } > > static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) Hmm I'm not sure how well this will work once you actually make it dynamic. Remains to be seen. > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 3c3d6c0..053f9b6 100644 > --- a/drivers/net/tun.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) > + retur...

...VNET_LE) ? true : virtio_legacy_is_little_endian(); might make line long, but your follow-up patch makes it short again, so that's ok. > static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 3c3d6c0..053f9b6 100644 > --- a/drivers/net/tun.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) > + retur...

...VNET_LE) ? true : virtio_legacy_is_little_endian(); might make line long, but your follow-up patch makes it short again, so that's ok. > static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 3c3d6c0..053f9b6 100644 > --- a/drivers/net/tun.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) > + retur...

...e(q, sp); > + > + case TUNSETVNETBE: > + return macvtap_set_vnet_be(q, sp); > + > case TUNSETOFFLOAD: > /* let the user check for future flags */ > if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 053f9b6..4e12488 100644 > --- a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -111,6 +111,7 @@ do { \ > #define TUN_FASYNC IFF_ATTACH_QUEUE > /* High bits in flags field are unused. */ > #define TUN_VNET_LE 0x80000000 > +#define TUN_VNET_BE 0x40000000 > >...

...e(q, sp); > + > + case TUNSETVNETBE: > + return macvtap_set_vnet_be(q, sp); > + > case TUNSETOFFLOAD: > /* let the user check for future flags */ > if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 053f9b6..4e12488 100644 > --- a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -111,6 +111,7 @@ do { \ > #define TUN_FASYNC IFF_ATTACH_QUEUE > /* High bits in flags field are unused. */ > #define TUN_VNET_LE 0x80000000 > +#define TUN_VNET_BE 0x40000000 > >...

...*q) { - return q->flags & MACVTAP_VNET_LE; + if (q->flags & MACVTAP_VNET_LE) + return true; + return virtio_legacy_is_little_endian(); } static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 3c3d6c0..053f9b6 100644 --- a/drivers/net/tun.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_endi...

...*q) { - return q->flags & MACVTAP_VNET_LE; + if (q->flags & MACVTAP_VNET_LE) + return true; + return virtio_legacy_is_little_endian(); } static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 3c3d6c0..053f9b6 100644 --- a/drivers/net/tun.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_endi...

...se TUNGETVNETBE: + return macvtap_get_vnet_be(q, sp); + + case TUNSETVNETBE: + return macvtap_set_vnet_be(q, sp); + case TUNSETOFFLOAD: /* let the user check for future flags */ if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 053f9b6..4e12488 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -111,6 +111,7 @@ do { \ #define TUN_FASYNC IFF_ATTACH_QUEUE /* High bits in flags field are unused. */ #define TUN_VNET_LE 0x80000000 +#define TUN_VNET_BE 0x40000000 #define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUE...

...VNETBE: > > + return macvtap_set_vnet_be(q, sp); > > + > > case TUNSETOFFLOAD: > > /* let the user check for future flags */ > > if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | > > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > > index 053f9b6..4e12488 100644 > > --- a/drivers/net/tun.c > > +++ b/drivers/net/tun.c > > @@ -111,6 +111,7 @@ do { \ > > #define TUN_FASYNC IFF_ATTACH_QUEUE > > /* High bits in flags field are unused. */ > > #define TUN_VNET_LE 0x80000000 > > +#define TUN_V...

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

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed according to MST's comments. --- Greg Kurz (7): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian()

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed according to MST's comments. --- Greg Kurz (7): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian()

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is a complete rework of my initial post. Patches 1 to 5 are preliminary work: we move the endianness check out of all memory accessors to separate functions. Patch 6 changes the semantics of the accessors so that they have explicit big endian support. Patch 7 brings the cross-endian

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is a complete rework of my initial post. Patches 1 to 5 are preliminary work: we move the endianness check out of all memory accessors to separate functions. Patch 6 changes the semantics of the accessors so that they have explicit big endian support. Patch 7 brings the cross-endian