On Mon, 10 Jul 2023 12:20:01 +0300, Gavin Li <gavinl@xxxxxxxxxx> wrote: As far as I know, Heng Qi does that. I'm not sure, it's the same piece. cc @Heng Qi Thanks. > Currently, coalescing parameters are grouped for all transmit and receive > virtqueues. This patch series add support to set or get the parameters for > a specified virtqueue. > > When the traffic between virtqueues is unbalanced, for example, one virtqueue > is busy and another virtqueue is idle, then it will be very useful to > control coalescing parameters at the virtqueue granularity. > > Example command: > $ ethtool -Q eth5 queue_mask 0x1 --coalesce tx-packets 10 > Would set max_packets=10 to VQ 1. > $ ethtool -Q eth5 queue_mask 0x1 --coalesce rx-packets 10 > Would set max_packets=10 to VQ 0. > $ ethtool -Q eth5 queue_mask 0x1 --show-coalesce > Queue: 0 > Adaptive RX: off TX: off > stats-block-usecs: 0 > sample-interval: 0 > pkt-rate-low: 0 > pkt-rate-high: 0 > > rx-usecs: 222 > rx-frames: 0 > rx-usecs-irq: 0 > rx-frames-irq: 256 > > tx-usecs: 222 > tx-frames: 0 > tx-usecs-irq: 0 > tx-frames-irq: 256 > > rx-usecs-low: 0 > rx-frame-low: 0 > tx-usecs-low: 0 > tx-frame-low: 0 > > rx-usecs-high: 0 > rx-frame-high: 0 > tx-usecs-high: 0 > tx-frame-high: 0 > > In this patch series: > Patch-1: Extract interrupt coalescing settings to a structure. > Patch-2: Extract get/set interrupt coalesce to a function. > Patch-3: Support per queue interrupt coalesce command. > Patch-4: Enable per queue interrupt coalesce feature. > > Gavin Li (4): > virtio_net: extract interrupt coalescing settings to a structure > virtio_net: extract get/set interrupt coalesce to a function > virtio_net: support per queue interrupt coalesce command > virtio_net: enable per queue interrupt coalesce feature > > drivers/net/virtio_net.c | 169 ++++++++++++++++++++++++++------ > include/uapi/linux/virtio_net.h | 14 +++ > 2 files changed, 154 insertions(+), 29 deletions(-) > > -- > 2.39.1 >
