From: Haiyang Zhang <haiyangz@linuxonhyperv.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: haiyangz@microsoft.com, kys@microsoft.com,
sthemmin@microsoft.com, olaf@aepfle.de, vkuznets@redhat.com,
devel@linuxdriverproject.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next,v2,3/3] hv_netvsc: Update document for LRO/RSC support
Date: Fri, 21 Sep 2018 18:20:37 +0000 [thread overview]
Message-ID: <20180921182037.10077-4-haiyangz@linuxonhyperv.com> (raw)
In-Reply-To: <20180921182037.10077-1-haiyangz@linuxonhyperv.com>
From: Haiyang Zhang <haiyangz@microsoft.com>
Update document for LRO/RSC support, and the command line info to
change the setting.
Signed-off-by: Haiyang Zhang <haiyangz@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
next prev parent reply other threads:[~2018-09-21 18:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 18:20 [PATCH net-next,v2,0/3] hv_netvsc: Support LRO/RSC in the vSwitch Haiyang Zhang
2018-09-21 18:20 ` [PATCH net-next,v2,1/3] hv_netvsc: Add support for " Haiyang Zhang
2018-09-21 18:36 ` [PATCH net-next, v2, 1/3] " Stephen Hemminger
2018-09-21 18:51 ` Haiyang Zhang
2018-09-21 20:22 ` Stephen Hemminger
2018-09-21 20:29 ` Haiyang Zhang
2018-09-21 18:20 ` [PATCH net-next,v2,2/3] hv_netvsc: Add handler for LRO setting change Haiyang Zhang
2018-09-21 18:20 ` Haiyang Zhang [this message]
2018-09-23 0:23 ` [PATCH net-next,v2,0/3] hv_netvsc: Support LRO/RSC in the vSwitch David Miller
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