Re: [dpdk-dev] [PATCH] fix for jumbo frame issue with DPDK VF

[Thomas Monjalon <thomas.monjalon@6wind.com>]

> > When latest Linux ixgbe PF is used, and DPDK VF is used in DPDK
> > application, jumbo frames are not received.
> > Also - if Linux ixgbe PF has MTU set to 1500 (default),
> > then normal sized packets can be received by DPDK VF.
> > However, if Linux PF has MTU > 1500, then DPDK VF receives no packets
> > (normal or jumbo).
> > With ixgbe_mbox_api_10 ixgbe simply didn't allow set VF MTU > 1514 for
> > 82599. With ixgbe_mbox_ajpi_11 it does, though now, if PF uses jumbo
> > frames, it simply disables RX for all VFs.
> > So to work with PF ithat using jumbo frames, at startup each VF has to:
> > 1. negotiate with PF mbox_api_11.
> > 2. Send to PF SET_LPE message with desired MTU.
> > Note, that if PF already uses MTU bigger then asked by the VF,
> > then PF wouldn't take any action.
> > 
> > Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> 
> Acked-by: Ivan Boule <ivan.boule@6wind.com>

Applied for version 1.7.0.

Thanks
-- 
Thomas