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Date: Tue, 26 Nov 2013 22:24:11 -0800
From: Stephen Hemminger <stephen@networkplumber.org>
To: Prashant Upadhyaya <prashant.upadhyaya@aricent.com>
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Subject: Re: [dpdk-dev] Regarding VM live migration with SRIOV
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On Wed, 27 Nov 2013 11:39:28 +0530
Prashant Upadhyaya <prashant.upadhyaya@aricent.com> wrote:

> Hi Stephen,
> 
> The rte_eal_pci_probe is typically called at the startup.
> 
> Now let's say a DPDK application is running with a PCI device (doing tx and rx) and I remove that PCI device underneath (hot plugout)
> So how does the application now know that the device is gone ?
> 
> Is it that rte_eal_pci_probe should be called periodically from, let's say, the slow control path of the DPDK application ?
> 
> Regards
> -Prashant
> 

Like I said current code doesn't do hotplug.
If you wanted to add it, you would have to refactor the PCI management layer.