From: Gregory Etelson <gregory at weka.io>
To: spdk@lists.01.org
Subject: Re: [SPDK] [PATCH v2] igb_uio: issue FLR during open and release of device file
Date: Sun, 16 Jul 2017 07:22:04 +0300 [thread overview]
Message-ID: <4563824.ntyntO6lBN@polaris> (raw)
In-Reply-To: ED26CBA2FAD1BF48A8719AEF02201E3651230B20@SHSMSX103.ccr.corp.intel.com
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Hello Shijith,
Please add the patch to uio_pci_generic.c file in Linux kernel
We experience similar faults with NVMe devices
On Wednesday, 12 July 2017 06:40:55 IDT Tan, Jianfeng wrote:
>
> > -----Original Message-----
> > From: Shijith Thotton [mailto:shijith.thotton(a)caviumnetworks.com]
> > Sent: Friday, July 7, 2017 7:14 PM
> > To: dev(a)dpdk.org
> > Cc: Yigit, Ferruh; Gregory Etelson; Thomas Monjalon; Stephen Hemminger;
> > Tan, Jianfeng; Lu, Wenzhuo
> > Subject: [PATCH v2] igb_uio: issue FLR during open and release of device file
> >
> > Set UIO info device file operations open and release. Call pci reset
> > function inside open and release to clear device state at start and end.
> > Copied this behaviour from vfio_pci kernel module code. With this patch,
> > it is not mandatory to issue FLR by PMD's during init and close.
> >
> > Bus master enable and disable are added in open and release respectively
> > to take care of device DMA.
> >
> > Signed-off-by: Shijith Thotton <shijith.thotton(a)caviumnetworks.com>
>
> Reviewed-by: Jianfeng Tan <jianfeng.tan(a)intel.com>
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