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doc: clarify usage of netvsc PMD

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Since netvsc PMD does not support SR-IOV accelerated networking,
it is not recommended for use on Azure. Make this clear in the
guide.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
This commit is contained in:
Stephen Hemminger 2018-08-06 09:31:07 -07:00 committed by Thomas Monjalon
parent a31f76d8fe
commit 4b048f352c
1 changed files with 10 additions and 6 deletions
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16
doc/guides/nics/netvsc.rst
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@ -6,7 +6,7 @@ Netvsc poll mode driver
The Netvsc Poll Mode driver (PMD) provides support for the paravirtualized
network device for Microsoft Hyper-V. It can be used with
Window Server 2008/2012/2016, Windows 10 and Azure cloud.
Window Server 2008/2012/2016, Windows 10.
The device offers multi-queue support (if kernel and host support it),
checksum and segmentation offloads.
@ -21,7 +21,7 @@ In this release, the hyper PMD driver provides the basic functionality of packet
* The PMD supports multicast packets and promiscuous mode subject to restrictions on the host.
In order to this to work, the guest network configuration on Hyper-V must be configured to allow MAC address
spoofing. This option is not available on Azure.
spoofing.
* The device has only a single MAC address.
Hyper-V driver does not support MAC or VLAN filtering because the Hyper-V host does not support it.
@ -33,9 +33,13 @@ In this release, the hyper PMD driver provides the basic functionality of packet
* The maximum number of queues is limited by the host (currently 64).
When used with 4.16 kernel only a single queue is available.
* This driver is intended for use with synthetic path only.
Accelerated Networking (SR-IOV) acceleration is not supported yet.
Use the VDEV_NETVSC device for accelerated networking instead.
.. note::
This driver is intended for use with **Hyper-V only** and is
not recommended for use on Azure because accelerated Networking
(SR-IOV) is not supported.
On Azure, use the :doc:`vdev_netvsc` which
automatically configures the necessary TAP and failsave drivers.
Installation
@ -88,7 +92,7 @@ operations:
.. Note::
The dpkd-devbind.py script should not be used. It only handles PCI devices.
The dpkd-devbind.py script can not be used since it only handles PCI devices.
Prerequisites