From: Greg KH <greg@kroah.com>
To: Roland Dreier <roland@topspin.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Add some PCI Express constants to pci.h
Date: Fri, 2 Jul 2004 13:57:12 -0700 [thread overview]
Message-ID: <20040702205712.GE29580@kroah.com> (raw)
In-Reply-To: <52r7rwj40o.fsf@topspin.com>
On Wed, Jun 30, 2004 at 11:26:47AM -0700, Roland Dreier wrote:
> This patch adds some PCI Express register constants to <linux/pci.h>
>
> For my device, setting the Max_Read_Request_Size value in the PCI
> Express device control register makes a huge performance difference.
> I wanted my driver code that does this to be a little more
> self-documenting than:
>
> pci_read_config_word(mdev->pdev, cap + 8, &val);
> val = (val & ~(5 << 12)) | (5 << 12);
>
> I went a little overboard and added all the basic device register
> fields. If desired I could go even further overboard and add the
> link, slot and root registers as well.
>
> This patch is based on Matthew Wilcox's patch for pciutils, corrected
> for some PCI Express spec 1.0a changes.
>
> Signed-off-by: Roland Dreier <roland@topspin.com>
Applied, thanks.
greg k-h
prev parent reply other threads:[~2004-07-02 21:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-30 18:26 [PATCH] Add some PCI Express constants to pci.h Roland Dreier
2004-07-02 20:57 ` Greg KH [this message]
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