From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Subject: Re: i40e igb_uio: reset pci on process exit
Date: Mon, 29 May 2017 16:31:48 +0530
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Cc: Stephen Hemminger <stephen@networkplumber.org>, dev@dpdk.org,
 Ferruh Yigit <ferruh.yigit@intel.com>,
 Qi Zhang <qi.z.zhang@intel.com>, Wenzhuo Lu <wenzhuo.lu@intel.com>
To: Gregory Etelson <gregory@weka.io>
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On Mon, May 29, 2017 at 01:01:06PM +0300, Gregory Etelson wrote:
>    I still have to support Red Hat 6.x. These system do not have VFIO
> 
>    IGB_UIO is the only option there.
> 
>    Also, there was a discussion that claimed IGB_UIO has better performance
>    than VFIO.
> 
>    http://dpdk.org/ml/archives/dev/2014-August/004609.html
> 
>    Regards,
>    Gregory
> 

[..]
>> static int
>> igbuio_pci_open(struct uio_info *info, struct inode *inode)
>> {
>>	struct rte_uio_pci_dev *udev = info->priv;
>>	struct pci_dev *dev = udev->pdev;
>>
>>	return pci_reset_function(dev);
>> }
>>
>> and..
>> udev->info.open = igbuio_pci_open;
>>

I was suggesting to make reset part of open. It should work on your setup.

-	udev->info.release = igbuio_pci_release;
+	udev->info.open = igbuio_pci_open;

Shijith