[ovs-dev] [PATCH] dpif-netlink-rtnl: Retry a smaller MTU for netdev when MAX_MTU is too large.

Ben Pfaff blp at ovn.org
Fri Jul 6 17:58:15 UTC 2018

On Thu, Jul 05, 2018 at 11:55:46AM -0700, Yifeng Sun wrote:
> When MAX_MTU is larger than hw supported max MTU,
> dpif_netlink_rtnl_create will fail. This leads to
> testing failure '11: datapath - ping over gre tunnel'
> in 'make check-kmod'.
> This patch fixes this issue by retrying a smaller MTU
> when MAX_MTU is too large.
> Signed-off-by: Yifeng Sun <pkusunyifeng at gmail.com>

Is this GRE-specific?  (Why would only GRE care about large MTUs?)

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