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authorSteven Luong <sluong@cisco.com>2020-12-10 20:44:22 -0800
committerDamjan Marion <dmarion@me.com>2020-12-25 11:45:09 +0000
commit2c1084a69bccac812bf2d763b113d1e5b7f08686 (patch)
tree5581bd1ac229153b373777e34d36fa5738f48de7 /src/vnet/ethernet
parent05bc31be20849e5994eb798d9eed0ad506a57d18 (diff)
virtio: Extend vhost multi-queues support beyond 8 queue pairs
Current vhost multi-queues support has a hard limit of 8 queue pairs due to static vring array. This limit was raised in qemu. VPP should support more than 8 queue pairs also. Change static vring allocation to dynamic. When the interface is created, we allocate 8 queue pairs to begin with. We also keep track of how many queue pairs that the interface actually uses. We reply VHOST_USER_GET_QUEUE_NUM with 128 as our maximum number of support queue pair. When qemu starts initializing queue pair greater than 8, we expand the vrings as needed on demand. Type: improvement Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I4a02d987d52d1bbe601b00e71f650fe6ebfcc0d7
Diffstat (limited to 'src/vnet/ethernet')
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