From f1951c22562a4f5a5c8ba82672352f7f6e5736b2 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Fri, 21 Sep 2018 18:20:37 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- Documentation/networking/netvsc.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/networking/netvsc.txt b/Documentation/networking/netvsc.txt index 92f5b31392fa..3bfa635bbbd5 100644 --- a/Documentation/networking/netvsc.txt +++ b/Documentation/networking/netvsc.txt @@ -45,6 +45,15 @@ Features like packets and significantly reduces CPU usage under heavy Rx load. + Large Receive Offload (LRO), or Receive Side Coalescing (RSC) + ------------------------------------------------------------- + The driver supports LRO/RSC in the vSwitch feature. It reduces the per packet + processing overhead by coalescing multiple TCP segments when possible. The + feature is enabled by default on VMs running on Windows Server 2019 and + later. It may be changed by ethtool command: + ethtool -K eth0 lro on + ethtool -K eth0 lro off + SR-IOV support -------------- Hyper-V supports SR-IOV as a hardware acceleration option. If SR-IOV -- 2.30.2