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Gavin Li says: ==================== virtio_net: add per queue interrupt coalescing support 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 ==================== Link: https://lore.kernel.org/r/20230731070656.96411-1-gavinl@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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