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Date: Sun, 30 Jul 2023 11:59:01 +0300 From: Arseniy Krasnov <AVKrasnov@...rdevices.ru> To: Stefan Hajnoczi <stefanha@...hat.com>, Stefano Garzarella <sgarzare@...hat.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, Bobby Eshleman <bobby.eshleman@...edance.com> CC: <kvm@...r.kernel.org>, <virtualization@...ts.linux-foundation.org>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <kernel@...rdevices.ru>, <oxffffaa@...il.com>, <avkrasnov@...rdevices.ru>, Arseniy Krasnov <AVKrasnov@...rdevices.ru> Subject: [PATCH net-next v5 0/4] vsock/virtio/vhost: MSG_ZEROCOPY preparations Hello, this patchset is first of three parts of another big patchset for MSG_ZEROCOPY flag support: https://lore.kernel.org/netdev/20230701063947.3422088-1-AVKrasnov@sberdevices.ru/ During review of this series, Stefano Garzarella <sgarzare@...hat.com> suggested to split it for three parts to simplify review and merging: 1) virtio and vhost updates (for fragged skbs) <--- this patchset 2) AF_VSOCK updates (allows to enable MSG_ZEROCOPY mode and read tx completions) and update for Documentation/. 3) Updates for tests and utils. This series enables handling of fragged skbs in virtio and vhost parts. Newly logic won't be triggered, because SO_ZEROCOPY options is still impossible to enable at this moment (next bunch of patches from big set above will enable it). I've included changelog to some patches anyway, because there were some comments during review of last big patchset from the link above. Head for this patchset is 9d0cd5d25f7d45bce01bbb3193b54ac24b3a60f3 Link to v1: https://lore.kernel.org/netdev/20230717210051.856388-1-AVKrasnov@sberdevices.ru/ Link to v2: https://lore.kernel.org/netdev/20230718180237.3248179-1-AVKrasnov@sberdevices.ru/ Link to v3: https://lore.kernel.org/netdev/20230720214245.457298-1-AVKrasnov@sberdevices.ru/ Link to v4: https://lore.kernel.org/netdev/20230727222627.1895355-1-AVKrasnov@sberdevices.ru/ Changelog: v3 -> v4: * Patchset rebased and tested on new HEAD of net-next (see hash above). v4 -> v5: * See per-patch changelog after ---. Arseniy Krasnov (4): vsock/virtio/vhost: read data from non-linear skb vsock/virtio: support to send non-linear skb vsock/virtio: non-linear skb handling for tap vsock/virtio: MSG_ZEROCOPY flag support drivers/vhost/vsock.c | 14 +- include/linux/virtio_vsock.h | 6 + net/vmw_vsock/virtio_transport.c | 74 +++++- net/vmw_vsock/virtio_transport_common.c | 300 ++++++++++++++++++------ 4 files changed, 313 insertions(+), 81 deletions(-) -- 2.25.1
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