On Tue, 11 Jul 2023 10:34:33 +0800, Gavin Li <gavinl@xxxxxxxxxx> wrote: > > On 7/10/2023 5:25 PM, Xuan Zhuo wrote: > > External email: Use caution opening links or attachments > > > > > > 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. > Do you mean the one below? YES > > https://lists.oasis-open.org/archives/virtio-dev/202303/msg00415.html > > The code is to implement what it described and I don't have better > words. So, I copied the text from Heng Qi's. Maybe he wrote code for it. I think you should ask him about his plans first. 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 > >>
