From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Yijing Wang <wangyijing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
jiang.liu-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
Hanjun Guo <guohanjun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH 14/16] amd_iommu: clean up unnecessary MSI/MSI-X capability find
Date: Wed, 14 Aug 2013 12:20:09 +0200 [thread overview]
Message-ID: <20130814102007.GE4491@8bytes.org> (raw)
In-Reply-To: <1375967556-6248-1-git-send-email-wangyijing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
On Thu, Aug 08, 2013 at 09:12:36PM +0800, Yijing Wang wrote:
> PCI core will initialize device MSI/MSI-X capability in
> pci_msi_init_pci_dev(). So device driver should use
> pci_dev->msi_cap/msix_cap to determine whether the device
> support MSI/MSI-X instead of using
> pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
> Access to PCIe device config space again will consume more time.
>
> Signed-off-by: Yijing Wang <wangyijing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
> Cc: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
> Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Applied to x86/amd, thanks.
WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Yijing Wang <wangyijing@huawei.com>
Cc: Hanjun Guo <guohanjun@huawei.com>,
jiang.liu@huawei.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 14/16] amd_iommu: clean up unnecessary MSI/MSI-X capability find
Date: Wed, 14 Aug 2013 12:20:09 +0200 [thread overview]
Message-ID: <20130814102007.GE4491@8bytes.org> (raw)
In-Reply-To: <1375967556-6248-1-git-send-email-wangyijing@huawei.com>
On Thu, Aug 08, 2013 at 09:12:36PM +0800, Yijing Wang wrote:
> PCI core will initialize device MSI/MSI-X capability in
> pci_msi_init_pci_dev(). So device driver should use
> pci_dev->msi_cap/msix_cap to determine whether the device
> support MSI/MSI-X instead of using
> pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
> Access to PCIe device config space again will consume more time.
>
> Signed-off-by: Yijing Wang <wangyijing@huawei.com>
> Cc: Joerg Roedel <joro@8bytes.org>
> Cc: iommu@lists.linux-foundation.org
> Cc: linux-kernel@vger.kernel.org
Applied to x86/amd, thanks.
next prev parent reply other threads:[~2013-08-14 10:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-08 13:12 [PATCH 14/16] amd_iommu: clean up unnecessary MSI/MSI-X capability find Yijing Wang
2013-08-08 13:12 ` Yijing Wang
[not found] ` <1375967556-6248-1-git-send-email-wangyijing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2013-08-14 10:20 ` Joerg Roedel [this message]
2013-08-14 10:20 ` Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130814102007.GE4491@8bytes.org \
--to=joro-zlv9swrftaidnm+yrofe0a@public.gmane.org \
--cc=guohanjun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org \
--cc=iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=jiang.liu-hv44wF8Li93QT0dZR+AlfA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=wangyijing-hv44wF8Li93QT0dZR+AlfA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.