search for: nr_vec

...host_virtqueue *vq, break; } - nbytes = copy_to_iter(pkt->buf, pkt->len, &iov_iter); - if (nbytes != pkt->len) { - virtio_transport_free_pkt(pkt); - vq_err(vq, "Faulted on copying pkt buf\n"); - break; + remain_len = pkt->len; + for (i = 0; i < pkt->nr_vecs; i++) { + int tmp_len; + + tmp_len = min(remain_len, pkt->vec[i].iov_len); + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); + if (nbytes != tmp_len) { + virtio_transport_free_pkt(pkt); + vq_err(vq, "Faulted on copying pkt buf\n"); + break; +...

...host_virtqueue *vq, break; } - nbytes = copy_to_iter(pkt->buf, pkt->len, &iov_iter); - if (nbytes != pkt->len) { - virtio_transport_free_pkt(pkt); - vq_err(vq, "Faulted on copying pkt buf\n"); - break; + remain_len = pkt->len; + for (i = 0; i < pkt->nr_vecs; i++) { + int tmp_len; + + tmp_len = min(remain_len, pkt->vec[i].iov_len); + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); + if (nbytes != tmp_len) { + virtio_transport_free_pkt(pkt); + vq_err(vq, "Faulted on copying pkt buf\n"); + break; +...

...to_iter(pkt->buf, pkt->len, &iov_iter); >> - if (nbytes != pkt->len) { >> - virtio_transport_free_pkt(pkt); >> - vq_err(vq, "Faulted on copying pkt buf\n"); >> - break; >> + remain_len = pkt->len; >> + for (i = 0; i < pkt->nr_vecs; i++) { >> + int tmp_len; >> + >> + tmp_len = min(remain_len, pkt->vec[i].iov_len); >> + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); >> + if (nbytes != tmp_len) { >> + virtio_transport_free_pkt(pkt); >> + vq_err...

...to_iter(pkt->buf, pkt->len, &iov_iter); >> - if (nbytes != pkt->len) { >> - virtio_transport_free_pkt(pkt); >> - vq_err(vq, "Faulted on copying pkt buf\n"); >> - break; >> + remain_len = pkt->len; >> + for (i = 0; i < pkt->nr_vecs; i++) { >> + int tmp_len; >> + >> + tmp_len = min(remain_len, pkt->vec[i].iov_len); >> + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); >> + if (nbytes != tmp_len) { >> + virtio_transport_free_pkt(pkt); >> + vq_err...

...> - nbytes = copy_to_iter(pkt->buf, pkt->len, &iov_iter); > - if (nbytes != pkt->len) { > - virtio_transport_free_pkt(pkt); > - vq_err(vq, "Faulted on copying pkt buf\n"); > - break; > + remain_len = pkt->len; > + for (i = 0; i < pkt->nr_vecs; i++) { > + int tmp_len; > + > + tmp_len = min(remain_len, pkt->vec[i].iov_len); > + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); > + if (nbytes != tmp_len) { > + virtio_transport_free_pkt(pkt); > + vq_err(vq, "Faulted on copyin...

...en, &iov_iter); > >> - if (nbytes != pkt->len) { > >> - virtio_transport_free_pkt(pkt); > >> - vq_err(vq, "Faulted on copying pkt buf\n"); > >> - break; > >> + remain_len = pkt->len; > >> + for (i = 0; i < pkt->nr_vecs; i++) { > >> + int tmp_len; > >> + > >> + tmp_len = min(remain_len, pkt->vec[i].iov_len); > >> + nbytes = copy_to_iter(pkt->vec[i].iov_base, tmp_len, &iov_iter); > >> + if (nbytes != tmp_len) { > >> + virtio_transport_free_...

Currently, vhost-net is the only consumer of vhost infrastructure. So vhost infrastructure and vhost-net driver are in a single module. Separating this as a vhost.ko module and a vhost-net.ko module makes it is easier to share code with other vhost drivers, e.g. vhost-blk.ko, tcm-vhost.ko. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/Kconfig | 10 +++++++++-

Currently, vhost-net is the only consumer of vhost infrastructure. So vhost infrastructure and vhost-net driver are in a single module. Separating this as a vhost.ko module and a vhost-net.ko module makes it is easier to share code with other vhost drivers, e.g. vhost-blk.ko, tcm-vhost.ko. Signed-off-by: Asias He <asias at redhat.com> --- drivers/vhost/Kconfig | 10 +++++++++-

pvSCSI backend driver Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com> Signed-off-by: Jun Kamada <kama@jp.fujitsu.com> ----- Jun Kamada _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi folks, [I am resending to fix the broken thread in the previous one.] This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk device accelerator. Compared to userspace virtio-blk implementation, vhost-blk gives about 5% to 15% performance improvement. Asias He (5): aio: Export symbols and struct kiocb_batch for in kernel aio usage eventfd: Export symbol

Hi folks, [I am resending to fix the broken thread in the previous one.] This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk device accelerator. Compared to userspace virtio-blk implementation, vhost-blk gives about 5% to 15% performance improvement. Asias He (5): aio: Export symbols and struct kiocb_batch for in kernel aio usage eventfd: Export symbol

...t bio *bio, int error) +{ + struct dio *dio = bio->bi_private; + + if (dio->is_async) + dio_bio_end_aio(bio, error); + else + dio_bio_end_io(bio, error); +} +EXPORT_SYMBOL_GPL(dio_end_io); + static int dio_bio_alloc(struct dio *dio, struct block_device *bdev, sector_t first_sector, int nr_vecs) @@ -316,6 +330,7 @@ dio_bio_alloc(struct dio *dio, struct block_device *bdev, bio->bi_end_io = dio_bio_end_io; dio->bio = bio; + dio->logical_offset_in_bio = dio->cur_page_fs_offset; return 0; } @@ -340,10 +355,15 @@ static void dio_bio_submit(struct dio *dio) if (dio-&g...

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future