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
