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authorMohsin Kazmi <sykazmi@cisco.com>2020-10-12 13:01:24 +0200
committerBeno�t Ganne <bganne@cisco.com>2020-10-21 11:20:01 +0000
commita5203b53d4fa227560333b890d3e79fc220d1bfd (patch)
tree04ac639280910abbf8a12fd973b207f177b67a12 /docs/archive
parent302b25a00ed913767798d58148ef4d36092ee490 (diff)
virtio: run process to send interrupts to input nodes
Type: improvement virtio interfaces support packet coalescing and buffering which depends on timer expiry to flush the stored packets periodically. virtio input node checks timer expiry and schedules tx queue accordingly. In poll mode, timer expiry is handled naturally, as input node runs periodically. In interrupt mode, virtio input node depends on the interrupts send from backend. Stored packets could starve, if there would not be interrupts to input node. This patch implements a process node which periodically sends interrupt to virtio input node given coalescing or buffering feature is enabled on an interface. Change-Id: Ic38f749f74b001073d4d0579dca149d0a4cea039 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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