From: Guo Zhi <qtxuning1999@sjtu.edu.cn>
To: eperezma@redhat.com, jasowang@redhat.com, sgarzare@redhat.com,
mst@redhat.com
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
Guo Zhi <qtxuning1999@sjtu.edu.cn>
Subject: [RFC 0/5] In virtio-spec 1.1, new feature bit VIRTIO_F_IN_ORDER was introduced.
Date: Thu, 21 Jul 2022 16:43:36 +0800 [thread overview]
Message-ID: <20220721084341.24183-1-qtxuning1999@sjtu.edu.cn> (raw)
When this feature has been negotiated, virtio driver will use
descriptors in ring order: starting from offset 0 in the table, and
wrapping around at the end of the table. Vhost devices will always use
descriptors in the same order in which they have been made available.
This can reduce virtio accesses to used ring.
Based on updated virtio-spec, this series realized IN_ORDER prototype
in virtio driver and vhost.
Guo Zhi (5):
vhost: reorder used descriptors in a batch
vhost: announce VIRTIO_F_IN_ORDER support
vhost_test: batch used buffer
virtio: get desc id in order
virtio: annouce VIRTIO_F_IN_ORDER support
drivers/vhost/test.c | 15 +++++++++++-
drivers/vhost/vhost.c | 44 ++++++++++++++++++++++++++++++++++--
drivers/vhost/vhost.h | 4 ++++
drivers/virtio/virtio_ring.c | 39 +++++++++++++++++++++++++-------
4 files changed, 91 insertions(+), 11 deletions(-)
--
2.17.1
next reply other threads:[~2022-07-21 8:44 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-21 8:43 Guo Zhi [this message]
2022-07-21 8:43 ` [RFC 1/5] vhost: reorder used descriptors in a batch Guo Zhi
2022-07-22 7:07 ` Eugenio Perez Martin
2022-08-02 3:30 ` Guo Zhi
2022-07-26 7:36 ` Jason Wang
2022-07-26 7:36 ` Jason Wang
[not found] ` <2a8838c4-2e6f-6de7-dcdc-572699ff3dc9@sjtu.edu.cn>
2022-07-29 7:32 ` Jason Wang
2022-07-29 7:32 ` Jason Wang
2022-08-02 3:09 ` Guo Zhi
2022-08-02 14:12 ` Guo Zhi
2022-08-04 5:04 ` Jason Wang
2022-08-04 5:04 ` Jason Wang
2022-08-11 8:58 ` Guo Zhi
2022-08-02 13:54 ` Guo Zhi
2022-07-21 8:43 ` [RFC 2/5] vhost: announce VIRTIO_F_IN_ORDER support Guo Zhi
2022-07-21 8:43 ` [RFC 3/5] vhost_test: batch used buffer Guo Zhi
2022-07-22 7:12 ` Eugenio Perez Martin
2022-08-02 2:47 ` Guo Zhi
2022-08-02 3:08 ` Guo Zhi
[not found] ` <1D1ABF88-B503-4BE0-AC83-3326EAA62510@sjtu.edu.cn>
2022-08-02 7:45 ` Stefano Garzarella
2022-08-02 7:45 ` Stefano Garzarella
2022-07-21 8:43 ` [RFC 4/5] virtio: get desc id in order Guo Zhi
2022-07-26 8:07 ` Jason Wang
2022-07-26 8:07 ` Jason Wang
2022-07-28 8:12 ` Guo Zhi
2022-08-11 8:49 ` Guo Zhi
2022-07-21 8:43 ` [RFC 5/5] virtio: annouce VIRTIO_F_IN_ORDER support Guo Zhi
2022-07-21 9:17 ` [RFC 0/5] In virtio-spec 1.1, new feature bit VIRTIO_F_IN_ORDER was introduced Jason Wang
2022-07-21 9:17 ` Jason Wang
2022-07-21 11:54 ` Guo Zhi
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