[dpdk-dev] [PATCH] net/ixgbe: fix VF RX hang

Zhang, Helin helin.zhang at intel.com
Wed Dec 20 07:09:18 CET 2017



> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Dai, Wei
> Sent: Wednesday, November 22, 2017 9:18 AM
> To: Lu, Wenzhuo; dev at dpdk.org
> Cc: Lu, Wenzhuo; stable at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] net/ixgbe: fix VF RX hang
> 
> 
> 
> > -----Original Message-----
> > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Wenzhuo Lu
> > Sent: Monday, November 20, 2017 11:38 AM
> > To: dev at dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo.lu at intel.com>; stable at dpdk.org
> > Subject: [dpdk-dev] [PATCH] net/ixgbe: fix VF RX hang
> >
> > The datasheet says, if using MSI-X mode, the PBA support bit of the
> > GPIE register must be set to 1.
> > DPDK uses polling mode, we cannot hit this issue in the scenario DPDK
> > PF + DPDK VF. If we use DPDK PF + kernel VF, as the kernel driver uses
> > interrpt mode, VF may hit RX hang after running hours.
> >
> > Fixes: 00e30184daa0 ("ixgbe: add PF support")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
> Acked-by: Wei Dai <wei.dai at intel.com>

Applied to next-net-intel, thanks! /Helin


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