[dpdk-stable] [PATCH v2 2/2] igb_uio: fix interrupt enablement after FLR in VM

[Ferruh Yigit]

On 10/16/2017 3:49 PM, Patil, Harish wrote:
> From: Gregory Etelson <gregory at weka.io <mailto:gregory at weka.io>>
> Date: Saturday, October 14, 2017 at 8:10 PM
> To: Ferruh Yigit <ferruh.yigit at intel.com <mailto:ferruh.yigit at intel.com>>
> Cc: "Thotton, Shijith" <Shijith.Thotton at cavium.com
> <mailto:Shijith.Thotton at cavium.com>>, "Wu, Jingjing"
> <jingjing.wu at intel.com <mailto:jingjing.wu at intel.com>>, Harish Patil
> <Harish.Patil at cavium.com <mailto:Harish.Patil at cavium.com>>, "Tan,
> Jianfeng" <jianfeng.tan at intel.com <mailto:jianfeng.tan at intel.com>>,
> "Xing, Beilei" <beilei.xing at intel.com <mailto:beilei.xing at intel.com>>,
> "dev at dpdk.org <mailto:dev at dpdk.org>" <dev at dpdk.org
> <mailto:dev at dpdk.org>>, "stable at dpdk.org <mailto:stable at dpdk.org>"
> <stable at dpdk.org <mailto:stable at dpdk.org>>
> Subject: Re: [PATCH v2 2/2] igb_uio: fix interrupt enablement after FLR
> in VM
> 
>     I'll start to build setup environment this week.
>     Regards,
>     Gregory
> 
>     On Sat, Oct 14, 2017 at 12:11 AM, Ferruh Yigit
>     <ferruh.yigit at intel.com <mailto:ferruh.yigit at intel.com>> wrote:
> 
>         On 10/13/2017 9:12 AM, Shijith Thotton wrote:
>         <...>
> 
>         > Hi Jingjing,
>         >
>         > This patch perfectly meets requirements as both resets are retained
>         > (open and release). Tested it with LiquidIO NIC and it works fine.
>         > I can see MSI-X re-enabled on each run with new patch.
>         >
>         > Gregory, Harish,
>         > Please verify the patch on your setup if possible.
> 
>         Hi Gregory, Harish,
> 
>         Did you able to test this patch?
> 
>         Thanks,
>         ferruh
> 
>         >
>         > Thanks,
>         > Shijith
>         >
> 
> 
> 
> Hi all,
> Its not working for qede VF device.
> So request to back out all igb_uio changes related to the patch:
> igb_uio: issue FLR during open and release of device file 

Hi Harish,

Thanks for testing. We tried.

For this release, agreed to revert back to original state, I will send a
patch soon.


But for further investigation in next release, can you please share more
details? What is not working exactly, what is your setup, any
kernel/DPDK log to share?

Thanks,
ferruh

> 
> Thanks,
> Harish
>