Hi Laszlo,
The '-r' option only works for all drivers and not for individual drivers.
> Date: Fri, 8 Aug 2014 01:02:12 +0200
> From: ler...@redhat.com
> To: edk2-devel@lists.sourceforge.net
> Subject: Re: [edk2] UEFI Shell Command "ifconfig" Error
>
> On 08/08/14 00:39, Chris Cuthbert wrote:
> > Hi Laszlo,
> >
> > This is what is happening. When I boot the system and run 'devtree'
> > shell command, I get the following. Parent @7A and child @7B.
> >
> > Ctrl[33] PciRoot(0x2)
> > Ctrl[78] PciRoot(0x2)/Pci(0x1,0x0)
> > Ctrl[79] PciRoot(0x2)/Pci(0x2,0x0)
> > Ctrl[7A] PciRoot(0x2)/Pci(0x2,0x0)/Pci(0x0,0x0)
> > Ctrl[7B] PciRoot(0x2)/Pci(0x2,0x0)/Pci(0x0,0x0)/MAC(121212121212,0x1)
> >
> > Then I issue 'disconnect 7A' command and see the following.
> >
> > Ctrl[33] PciRoot(0x2)
> > Ctrl[78] PciRoot(0x2)/Pci(0x1,0x0)
> > Ctrl[79] PciRoot(0x2)/Pci(0x2,0x0)
> > Ctrl[7A] PciRoot(0x2)/Pci(0x2,0x0)/Pci(0x0,0x0)
> >
> > Then I issue 'connect 7A' and see the following from 'devtree' command.
> >
> > Ctrl[33] PciRoot(0x2)
> > Ctrl[78] PciRoot(0x2)/Pci(0x1,0x0)
> > Ctrl[79] PciRoot(0x2)/Pci(0x2,0x0)
> > Ctrl[7A] PciRoot(0x2)/Pci(0x2,0x0)/Pci(0x0,0x0)
> > Ctrl[89] PciRoot(0x2)/Pci(0x2,0x0)/Pci(0x0,0x0)/MAC(121212121212,0x1)
> >
> > Now if I issue 'connect 89', then the MNP Support function will get
> > called to bind the MNP driver to the SNP protocol produced by '89'.
> >
> > Looks to me, that connecting the parent does not result in child handles
> > being connected recursively.
>
> Of course they won't be connected recursively if you don't request
> recursive connecting! I specifically emphasized the -r (DASH R) option
> of the "connect" shell command before. I referenced the -r option two
> times. Please pay attention.
>
> > This can happen if the child counting loop
> > that is looking for protocol opened by child does not see the protocol
> > opened by child.
>
> It can also happen if that loop is not reached at all because you pass
> Recursive=FALSE to CoreConnectController().
>
> Laszlo
>
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