Virtualization - Sep 2022 - [PATCH v6 0/2] Improve virtio performance for 9k mtu

On Wed, Sep 14, 2022 at 05:49:09PM +0300, Gavin Li
wrote:
> This small series contains two patches that improves virtio netdevice
> performance for 9K mtu when GRO/ guest TSO is disabled.
> 
> Gavin Li (2):
>   virtio-net: introduce and use helper function for guest gso support
>     checks

series:

Acked-by: Michael S. Tsirkin <mst at redhat.com>

this is net-next material

> ---
> changelog:
> v4->v5
> - Addressed comments from Michael S. Tsirkin
> - Remove unnecessary () in return clause
> v1->v2
> - Add new patch
> ---
>   virtio-net: use mtu size as buffer length for big packets
> ---
> changelog:
> v5->v6
> - Addressed comments from Jason and Michael S. Tsirkin
> - Remove wrong commit log description
> - Rename virtnet_set_big_packets_fields with virtnet_set_big_packets
> - Add more test results for different feature combinations
> v4->v5
> - Addressed comments from Michael S. Tsirkin
> - Improve commit message
> v3->v4
> - Addressed comments from Si-Wei
> - Rename big_packets_sg_num with big_packets_num_skbfrags
> v2->v3
> - Addressed comments from Si-Wei
> - Simplify the condition check to enable the optimization
> v1->v2
> - Addressed comments from Jason, Michael, Si-Wei.
> - Remove the flag of guest GSO support, set sg_num for big packets and
>   use it directly
> - Recalculate sg_num for big packets in virtnet_set_guest_offloads
> - Replace the round up algorithm with DIV_ROUND_UP
> ---
> 
>  drivers/net/virtio_net.c | 48 ++++++++++++++++++++++++++--------------
>  1 file changed, 32 insertions(+), 16 deletions(-)
> 
> -- 
> 2.31.1