netdev - Re: [PATCH net-26 4/5] cxgb4vf: Quiesce Virtual Interfaces on shutdown ...

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Message-Id: <201102141101.22326.leedom@chelsio.com>
Date:	Mon, 14 Feb 2011 11:01:22 -0800
From:	Casey Leedom <leedom@...lsio.com>
To:	Anirban Chakraborty <anirban.chakraborty@...gic.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [PATCH net-26 4/5] cxgb4vf: Quiesce Virtual Interfaces on shutdown ...

| From: Anirban Chakraborty <anirban.chakraborty@...gic.com>
| Date: Friday, February 11, 2011 11:17 pm
| 
| 
| You could invoke pci_reset_function as an alternative, that would make sure
| FLR happens.

  I'd love to do that but pci_reset_function() ends up taking the device 
semaphore in the underlaying routine pci_dev_reset().  I used to call 
pci_reset_function() in my probe() routine till 2.6.31 where that lock as added 
... which resulted in an instant self-deadlock ...

Casey
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