search for: virtio_to_cpu_u16

...; + cpu_to_virtio64(vq->vq.vdev, sg_phys(sg)); > + vq->vring.desc[i].len = > + cpu_to_virtio32(vq->vq.vdev, sg->length); > + > + /* We chained .next in native: fix endian. */ > + nexti = vq->vring.desc[i].next; > + vq->vring.desc[i].next > + = virtio_to_cpu_u16(vq->vq.vdev, nexti); > prev = i; > - i = vq->vring.desc[i].next; > + i = nexti; > } > } > for (; n < (out_sgs + in_sgs); n++) { > for (sg = sgs[n]; sg; sg = next(sg, &total_in)) { > - vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_...

...+ vq->vring.desc[i].addr = + cpu_to_virtio_u64(vq->vq.vdev, sg_phys(sg)); + vq->vring.desc[i].len = + cpu_to_virtio_u32(vq->vq.vdev, sg->length); + + /* We chained .next in native: fix endian. */ + nexti = vq->vring.desc[i].next; + vq->vring.desc[i].next + = virtio_to_cpu_u16(vq->vq.vdev, nexti); prev = i; - i = vq->vring.desc[i].next; + i = nexti; } } for (; n < (out_sgs + in_sgs); n++) { for (sg = sgs[n]; sg; sg = next(sg, &total_in)) { - vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE; - vq->vring.desc[i].addr =...

...+ vq->vring.desc[i].addr = + cpu_to_virtio_u64(vq->vq.vdev, sg_phys(sg)); + vq->vring.desc[i].len = + cpu_to_virtio_u32(vq->vq.vdev, sg->length); + + /* We chained .next in native: fix endian. */ + nexti = vq->vring.desc[i].next; + vq->vring.desc[i].next + = virtio_to_cpu_u16(vq->vq.vdev, nexti); prev = i; - i = vq->vring.desc[i].next; + i = nexti; } } for (; n < (out_sgs + in_sgs); n++) { for (sg = sgs[n]; sg; sg = next(sg, &total_in)) { - vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE; - vq->vring.desc[i].addr =...

...ceive_mergeable(struct net_device *dev, + struct virtnet_info *vi, struct receive_queue *rq, unsigned long ctx, unsigned int len) { void *buf = mergeable_ctx_to_buf_address(ctx); struct skb_vnet_hdr *hdr = buf; - int num_buf = hdr->mhdr.num_buffers; + u16 num_buf = virtio_to_cpu_u16(rq->vq->vdev, hdr->mhdr.num_buffers); struct page *page = virt_to_head_page(buf); int offset = buf - page_address(page); unsigned int truesize = max(len, mergeable_ctx_to_buf_truesize(ctx)); @@ -375,7 +376,9 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, ctx =...

This patchset tries to go towards implementing both virtio-1 compliant and transitional virtio drivers in Linux. Branch available at git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux virtio-1 This is based on some old patches by Rusty to handle extended feature bits and endianness conversions. Thomas implemented the new virtio-ccw transport revision command, and I hacked up some

This patchset tries to go towards implementing both virtio-1 compliant and transitional virtio drivers in Linux. Branch available at git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux virtio-1 This is based on some old patches by Rusty to handle extended feature bits and endianness conversions. Thomas implemented the new virtio-ccw transport revision command, and I hacked up some

...rtio_config.h index a0e16d8..ca22e3a 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -222,12 +222,13 @@ static inline u16 virtio_cread16(struct virtio_device *vdev, { u16 ret; vdev->config->get(vdev, offset, &ret, sizeof(ret)); - return ret; + return virtio_to_cpu_u16(vdev, ret); } static inline void virtio_cwrite16(struct virtio_device *vdev, unsigned int offset, u16 val) { + val = cpu_to_virtio_u16(vdev, val); vdev->config->set(vdev, offset, &val, sizeof(val)); } @@ -236,12 +237,13 @@ static inline u32 virtio_cread32(struct virtio_d...

...define module_virtio_driver(__virtio_driver) \ module_driver(__virtio_driver, register_virtio_driver, \ unregister_virtio_driver) + +/* + * v1.0 specifies LE headers, legacy was native endian. Therefore, we must + * convert from/to LE if and only if vdev is not legacy. + */ +static inline u16 virtio_to_cpu_u16(const struct virtio_device *vdev, u16 v) +{ + return virtio_device_legacy(vdev) ? v : le16_to_cpu(v); +} + +static inline u32 virtio_to_cpu_u32(const struct virtio_device *vdev, u32 v) +{ + return virtio_device_legacy(vdev) ? v : le32_to_cpu(v); +} + +static inline u64 virtio_to_cpu_u64(const struc...

...define module_virtio_driver(__virtio_driver) \ module_driver(__virtio_driver, register_virtio_driver, \ unregister_virtio_driver) + +/* + * v1.0 specifies LE headers, legacy was native endian. Therefore, we must + * convert from/to LE if and only if vdev is not legacy. + */ +static inline u16 virtio_to_cpu_u16(const struct virtio_device *vdev, u16 v) +{ + return virtio_device_legacy(vdev) ? v : le16_to_cpu(v); +} + +static inline u32 virtio_to_cpu_u32(const struct virtio_device *vdev, u32 v) +{ + return virtio_device_legacy(vdev) ? v : le32_to_cpu(v); +} + +static inline u64 virtio_to_cpu_u64(const struc...