[PATCH net-next, v2, 3/3] hv_netvsc: Update document for LRO/RSC support
Haiyang Zhang
haiyangz at linuxonhyperv.com
Fri Sep 21 18:20:37 UTC 2018
From: Haiyang Zhang <haiyangz at microsoft.com>
Update document for LRO/RSC support, and the command line info to
change the setting.
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
---
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
--
2.18.0
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