From: Greg KH <gregkh@linuxfoundation.org>
To: Alex Shi <alex.shi@intel.com>
Cc: sarah.a.sharp@linux.intel.com, stern@rowland.harvard.edu,
linux-usb@vger.kernel.org, andiry.xu@amd.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: enable pci MSI/MSIX in usb core
Date: Tue, 7 Feb 2012 06:42:04 -0800 [thread overview]
Message-ID: <20120207144204.GA7214@kroah.com> (raw)
In-Reply-To: <4F311233.9070404@intel.com>
On Tue, Feb 07, 2012 at 07:59:47PM +0800, Alex Shi wrote:
> On 02/06/2012 08:29 PM, Alex Shi wrote:
>
> > MSI/MSIX is the favorite interrupt for PCIe device. PCIe usb HCD should
> > be used more and more in future, but current USB core still just wants
> > line IRQ, only XHCI usb driver enabled MSI/MSIX.
> >
> > This patch enabled pci MSI/MSIX in usb core for HCD, and removed MSI/MSIX
> > setup code from XHCI since it becomes redundant now.
> > There 2 places need prepare to enable MSI/MSIX in usb driver.
> > 1, set HCD_MSI_FIRST in driver->flags to enable MSI/MSIX.
> > 2, prepare a get_msix_num() for specific drivers.
> > XHCI is a good example for this.
> >
> > This patch bases on my "USB-try-MSI-before-legacy-irq-on-pci-xhci-HCD"
> > patch.
>
>
> Gregkh&Alan:
>
> Do you need a full patch that include my recent MSI setup/bug fix
> patches? or just this one is ok?
I was thinking that Sarah would forward this on. We need whatever
should be applied to the tree, as I do not have any pending patches from
you in my queue.
greg k-h
next prev parent reply other threads:[~2012-02-07 14:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-06 12:29 Alex Shi
2012-02-07 11:59 ` Alex Shi
2012-02-07 14:42 ` Greg KH [this message]
2012-02-07 17:27 ` Sarah Sharp
2012-02-07 22:13 ` Sarah Sharp
2012-02-08 1:26 ` Alex,Shi
2012-02-08 6:27 ` Alex,Shi
2012-02-08 9:11 ` Alex,Shi
2012-02-14 0:20 ` Sarah Sharp
2012-02-14 0:25 ` [RFT] USB: Try MSI first before line IRQ for Intel PCIe USB3 HCD Sarah Sharp
2012-02-14 4:43 ` Alex,Shi
2012-02-16 2:36 ` [PATCH] usb: enable pci MSI/MSIX in usb core Alex,Shi
2012-02-17 6:44 ` Alex,Shi
2012-02-17 8:13 ` Clemens Ladisch
2012-02-17 8:46 ` Alex,Shi
2012-02-17 10:15 ` Clemens Ladisch
2012-02-18 6:28 ` Andiry Xu
2012-02-20 0:57 ` Alex,Shi
2012-02-20 3:52 ` Alex,Shi
2012-02-08 15:07 ` Alan Stern
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