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hv_netvsc: Update document for LRO/RSC support
Update document for LRO/RSC support, and the command line info to change the setting. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -45,6 +45,15 @@ Features
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like packets and significantly reduces CPU usage under heavy Rx
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load.
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Large Receive Offload (LRO), or Receive Side Coalescing (RSC)
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-------------------------------------------------------------
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The driver supports LRO/RSC in the vSwitch feature. It reduces the per packet
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processing overhead by coalescing multiple TCP segments when possible. The
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feature is enabled by default on VMs running on Windows Server 2019 and
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later. It may be changed by ethtool command:
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ethtool -K eth0 lro on
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ethtool -K eth0 lro off
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SR-IOV support
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--------------
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Hyper-V supports SR-IOV as a hardware acceleration option. If SR-IOV
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