linux-kernel - Re: [PATCH] pci: pciehp update the slot bridge res to get big range for pcie devices

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Message-ID: <20091021185715.GJ23948@ldl.fc.hp.com>
Date:	Wed, 21 Oct 2009 12:57:15 -0600
From:	Alex Chiang <achiang@...com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Bjorn Helgaas <bjorn.helgaas@...com>
Subject: Re: [PATCH] pci: pciehp update the slot bridge res to get big
	range for pcie devices

* Yinghai Lu <yinghai@...nel.org>:
> @@ -144,9 +182,6 @@ static void pci_setup_bridge(struct pci_
>  	u32 l, bu, lu, io_upper16;
>  	int pref_mem64;
>  
> -	if (pci_is_enabled(bridge))
> -		return;
> -
>  	dev_info(&bridge->dev, "PCI bridge, secondary bus %04x:%02x\n",
>  		 pci_domain_nr(bus), bus->number);

Have you tested this with the hotplug facilities I added a while
back?

Basically, what happens when you offline a bridge using

	/sys/bus/pci/devices/.../remove

And then re-add it using:

	/sys/bus/pci/rescan

Please try this both for bridges that are claimed by pciehp as
well as bridges that are not claimed.

Thanks.

/ac

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