OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.

 


Help: OASIS Mailing Lists Help | MarkMail Help

virtio-dev message

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]


Subject: [PATCH v4] content: Introduce VIRTIO_NET_F_STANDBY feature


VIRTIO_NET_F_STANDBY feature enables hypervisor to indicate virtio_net
device to act as a standby for another device with the same MAC address.

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/18
---
 content.tex | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/content.tex b/content.tex
index be18234..42a0e7e 100644
--- a/content.tex
+++ b/content.tex
@@ -2525,6 +2525,9 @@ features.
 
 \item[VIRTIO_NET_F_CTRL_MAC_ADDR(23)] Set MAC address through control
     channel.
+
+\item[VIRTIO_NET_F_STANDBY(62)] Device may act as a standby for a primary
+    device with the same MAC address.
 \end{description}
 
 \subsubsection{Feature bit requirements}\label{sec:Device Types / Network Device / Feature bits / Feature bit requirements}
@@ -2614,6 +2617,9 @@ level ethernet header length) size with \field{gso_type} NONE or ECN, and do
 so without fragmentation, after VIRTIO_NET_F_MTU has been successfully
 negotiated.
 
+If the driver negotiates the VIRTIO_NET_F_STANDBY feature, the device MAY act
+as a standby device for a primary device with the same MAC address.
+
 \drivernormative{\subsubsection}{Device configuration layout}{Device Types / Network Device / Device configuration layout}
 
 A driver SHOULD negotiate VIRTIO_NET_F_MAC if the device offers it.
@@ -2636,6 +2642,8 @@ If the driver negotiates VIRTIO_NET_F_MTU, it MUST NOT transmit packets of
 size exceeding the value of \field{mtu} (plus low level ethernet header length)
 with \field{gso_type} NONE or ECN.
 
+A driver SHOULD negotiate the VIRTIO_NET_F_STANDBY feature if the device offers it.
+
 \subsubsection{Legacy Interface: Device configuration layout}\label{sec:Device Types / Network Device / Device configuration layout / Legacy Interface: Device configuration layout}
 \label{sec:Device Types / Block Device / Feature bits / Device configuration layout / Legacy Interface: Device configuration layout}
 When using the legacy interface, transitional devices and drivers
-- 
2.14.4



[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]