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

Wu, Jingjing jingjing.wu at intel.com
Tue Oct 17 03:37:06 CEST 2017



> -----Original Message-----
> From: Patil, Harish [mailto:Harish.Patil at cavium.com]
> Sent: Tuesday, October 17, 2017 9:32 AM
> To: Yigit, Ferruh <ferruh.yigit at intel.com>; Gregory Etelson <gregory at weka.io>
> Cc: Thotton, Shijith <Shijith.Thotton at cavium.com>; Wu, Jingjing
> <jingjing.wu at intel.com>; Tan, Jianfeng <jianfeng.tan at intel.com>; Xing, Beilei
> <beilei.xing at intel.com>; dev at dpdk.org; stable at dpdk.org
> Subject: Re: [PATCH v2 2/2] igb_uio: fix interrupt enablement after FLR in VM
> 
> 
> 
> -----Original Message-----
> From: Ferruh Yigit <ferruh.yigit at intel.com>
> Date: Monday, October 16, 2017 at 4:52 PM
> To: Harish Patil <Harish.Patil at cavium.com>, Gregory Etelson
> <gregory at weka.io>
> Cc: "Thotton, Shijith" <Shijith.Thotton at cavium.com>, "Wu, Jingjing"
> <jingjing.wu at intel.com>, "Tan, Jianfeng" <jianfeng.tan at intel.com>, "Xing,
> Beilei" <beilei.xing at intel.com>, "dev at dpdk.org" <dev at dpdk.org>,
> "stable at dpdk.org" <stable at dpdk.org>
> Subject: Re: [PATCH v2 2/2] igb_uio: fix interrupt enablement after FLR in
> VM
> 
> >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
> 
> Okay, sure.
> thanks.
> >
> >>
> >> Thanks,
> >> Harish
> >>
> >
Can you share more details? Only doesn't work in vfio pci passthrough?


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