search for: memcpy_fromiovec

...from, READ, vq->indirect, ret, len); /* We will use the result as an address to read from, so most * architectures only need a compiler barrier here. */ @@ -1164,8 +1166,8 @@ static int get_indirect(struct vhost_virtqueue *vq, i, count); return -EINVAL; } - if (unlikely(memcpy_fromiovec((unsigned char *)&desc, - vq->indirect, sizeof desc))) { + if (unlikely(copy_from_iter(&desc, sizeof(desc), &from) != + sizeof(desc))) { vq_err(vq, "Failed indirect descriptor: idx %d, %zx\n", i, (size_t)vhost64_to_cpu(vq, indirect->addr)...

...from, READ, vq->indirect, ret, len); /* We will use the result as an address to read from, so most * architectures only need a compiler barrier here. */ @@ -1164,8 +1166,8 @@ static int get_indirect(struct vhost_virtqueue *vq, i, count); return -EINVAL; } - if (unlikely(memcpy_fromiovec((unsigned char *)&desc, - vq->indirect, sizeof desc))) { + if (unlikely(copy_from_iter(&desc, sizeof(desc), &from) != + sizeof(desc))) { vq_err(vq, "Failed indirect descriptor: idx %d, %zx\n", i, (size_t)vhost64_to_cpu(vq, indirect->addr)...

memcpy_fromiovec is moved from net/core/iovec.c to lib/iovec.c. linux/uio.h provides the declaration for memcpy_fromiovec. Include linux/uio.h instead of inux/socket.h for it. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff...

memcpy_fromiovec is moved from net/core/iovec.c to lib/iovec.c. linux/uio.h provides the declaration for memcpy_fromiovec. Include linux/uio.h instead of inux/socket.h for it. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff...

...sias He <asias at redhat.com> > Date: Fri, 16 Aug 2013 09:27:43 +0800 > > > On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: > >> From: Asias He <asias at redhat.com> > >> Date: Thu, 15 Aug 2013 11:20:16 +0800 > >> > >> > memcpy_fromiovec is moved to lib/iovec.c. No need to include > >> > linux/socket.h for it. > >> > > >> > Signed-off-by: Asias He <asias at redhat.com> > >> > >> You can't do this. > >> > >> Because this file doesn't include the...

...sias He <asias at redhat.com> > Date: Fri, 16 Aug 2013 09:27:43 +0800 > > > On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: > >> From: Asias He <asias at redhat.com> > >> Date: Thu, 15 Aug 2013 11:20:16 +0800 > >> > >> > memcpy_fromiovec is moved to lib/iovec.c. No need to include > >> > linux/socket.h for it. > >> > > >> > Signed-off-by: Asias He <asias at redhat.com> > >> > >> You can't do this. > >> > >> Because this file doesn't include the...

memcpy_fromiovec is moved to lib/iovec.c. No need to include linux/socket.h for it. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/vhost.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index e58cf00..038c242 100644 --- a/drivers/vhost/vhost...

memcpy_fromiovec is moved to lib/iovec.c. No need to include linux/socket.h for it. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/vhost.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index e58cf00..038c242 100644 --- a/drivers/vhost/vhost...

On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: > From: Asias He <asias at redhat.com> > Date: Thu, 15 Aug 2013 11:20:16 +0800 > > > memcpy_fromiovec is moved to lib/iovec.c. No need to include > > linux/socket.h for it. > > > > Signed-off-by: Asias He <asias at redhat.com> > > You can't do this. > > Because this file doesn't include the header file that > provides the declaration, which is linux...

Hi: Here are the patches I used for testing KVM with virtio-net using TSO. There are three patches for the tun device which are basically Rusty's patches with the mmap turned into copying (for correctness). Two patches are for the virtio-net frontend, one required to support receiving SG/TSO, and the other useful for testing SG per se. The other patch is to the KVM backend to make all this

On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: > From: Asias He <asias at redhat.com> > Date: Thu, 15 Aug 2013 11:20:16 +0800 > > > memcpy_fromiovec is moved to lib/iovec.c. No need to include > > linux/socket.h for it. > > > > Signed-off-by: Asias He <asias at redhat.com> > > You can't do this. > > Because this file doesn't include the header file that > provides the declaration, which is linux...

Hi: Here are the patches I used for testing KVM with virtio-net using TSO. There are three patches for the tun device which are basically Rusty's patches with the mmap turned into copying (for correctness). Two patches are for the virtio-net frontend, one required to support receiving SG/TSO, and the other useful for testing SG per se. The other patch is to the KVM backend to make all this

1) Turn GSO on virtio net into an all-or-nothing (keep checksumming separate). Having multiple bits is a pain: if you can't support something you should handle it in software, which is still a performance win. 2) Make VIRTIO_NET_HDR_GSO_ECN a flag in the header, so it can apply to IPv6 or v4. 3) Rename VIRTIO_NET_F_NO_CSUM to VIRTIO_NET_F_CSUM (ie. means we do checksumming). 4)

1) Turn GSO on virtio net into an all-or-nothing (keep checksumming separate). Having multiple bits is a pain: if you can't support something you should handle it in software, which is still a performance win. 2) Make VIRTIO_NET_HDR_GSO_ECN a flag in the header, so it can apply to IPv6 or v4. 3) Rename VIRTIO_NET_F_NO_CSUM to VIRTIO_NET_F_CSUM (ie. means we do checksumming). 4)

From: Asias He <asias at redhat.com> Date: Thu, 15 Aug 2013 11:20:16 +0800 > memcpy_fromiovec is moved to lib/iovec.c. No need to include > linux/socket.h for it. > > Signed-off-by: Asias He <asias at redhat.com> You can't do this. Because this file doesn't include the header file that provides the declaration, which is linux/uio.h linux/socket.h includes linux/ui...

From: Asias He <asias at redhat.com> Date: Fri, 16 Aug 2013 09:27:43 +0800 > On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: >> From: Asias He <asias at redhat.com> >> Date: Thu, 15 Aug 2013 11:20:16 +0800 >> >> > memcpy_fromiovec is moved to lib/iovec.c. No need to include >> > linux/socket.h for it. >> > >> > Signed-off-by: Asias He <asias at redhat.com> >> >> You can't do this. >> >> Because this file doesn't include the header file that >> provides...

...com> >> Date: Fri, 16 Aug 2013 09:27:43 +0800 >> >> > On Thu, Aug 15, 2013 at 02:07:40PM -0700, David Miller wrote: >> >> From: Asias He <asias at redhat.com> >> >> Date: Thu, 15 Aug 2013 11:20:16 +0800 >> >> >> >> > memcpy_fromiovec is moved to lib/iovec.c. No need to include >> >> > linux/socket.h for it. >> >> > >> >> > Signed-off-by: Asias He <asias at redhat.com> >> >> >> >> You can't do this. >> >> >> >> Because this...

...ount = indirect->len / sizeof desc; + count = len / sizeof desc; /* Buffers are chained via a 16 bit next field, so * we can have at most 2^16 of these. */ if (unlikely(count > USHRT_MAX + 1)) { @@ -1155,16 +1163,17 @@ static int get_indirect(struct vhost_virtqueue *vq, if (unlikely(memcpy_fromiovec((unsigned char *)&desc, vq->indirect, sizeof desc))) { vq_err(vq, "Failed indirect descriptor: idx %d, %zx\n", - i, (size_t)indirect->addr + i * sizeof desc); + i, (size_t)vhost64_to_cpu(vq, indirect->addr) + i * sizeof desc); return -EIN...

...ount = indirect->len / sizeof desc; + count = len / sizeof desc; /* Buffers are chained via a 16 bit next field, so * we can have at most 2^16 of these. */ if (unlikely(count > USHRT_MAX + 1)) { @@ -1155,16 +1163,17 @@ static int get_indirect(struct vhost_virtqueue *vq, if (unlikely(memcpy_fromiovec((unsigned char *)&desc, vq->indirect, sizeof desc))) { vq_err(vq, "Failed indirect descriptor: idx %d, %zx\n", - i, (size_t)indirect->addr + i * sizeof desc); + i, (size_t)vhost64_to_cpu(vq, indirect->addr) + i * sizeof desc); return -EIN...

...ount = indirect->len / sizeof desc; + count = len / sizeof desc; /* Buffers are chained via a 16 bit next field, so * we can have at most 2^16 of these. */ if (unlikely(count > USHRT_MAX + 1)) { @@ -1162,16 +1163,17 @@ static int get_indirect(struct vhost_virtqueue *vq, if (unlikely(memcpy_fromiovec((unsigned char *)&desc, vq->indirect, sizeof desc))) { vq_err(vq, "Failed indirect descriptor: idx %d, %zx\n", - i, (size_t)indirect->addr + i * sizeof desc); + i, (size_t)vhost64_to_cpu(vq, indirect->addr) + i * sizeof desc); return -EIN...