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| author |   Haiyang Zhang <haiyangz@microsoft.com> | 2018-09-21 18:20:37 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-22 17:23:16 -0700 |
| commit | f1951c22562a4f5a5c8ba82672352f7f6e5736b2 (patch) | |
| tree | 1565b962dc2a0fb5b466868022fefa2a48ae10fe /Documentation | |
| parent | hv_netvsc: Add handler for LRO setting change (diff) | |
| download | linux-dev-f1951c22562a4f5a5c8ba82672352f7f6e5736b2.tar.xz linux-dev-f1951c22562a4f5a5c8ba82672352f7f6e5736b2.zip | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/netvsc.txt | 9 |
1 files changed, 9 insertions, 0 deletions
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 |