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From: Thomas Gleixner <tglx@linutronix.de>
To: Keith Busch <keith.busch@intel.com>
Cc: x86@kernel.org, LKML <linux-kernel@vger.kernel.org>,
	Bryan Veal <bryan.e.veal@intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	linux-pci@vger.kernel.org, Jiang Liu <jiang.liu@linux.intel.com>
Subject: Re: [RFC PATCH 1/2] x86: PCI bus specific MSI operations
Date: Fri, 28 Aug 2015 18:54:57 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1508281849510.15006@nanos> (raw)
In-Reply-To: <1440715146-16578-2-git-send-email-keith.busch@intel.com>

On Thu, 27 Aug 2015, Keith Busch wrote:

> This patch adds struct x86_msi_ops to x86's PCI sysdata. This gives a
> host bridge driver the option to provide alternate MSI Data Register
> and MSI-X Table Entry programming for devices in PCI domains that do
> not subscribe to usual "IOAPIC" format.

I'm not too fond about more ad hoc indirection and special casing. We
should be able to handle this with hierarchical irq domains. Jiang
might have an idea how to do that for your case.

Thanks,

	tglx

  reply	other threads:[~2015-08-28 16:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-27 22:39 [RFC PATCH 0/2] Driver for new PCI-e device Keith Busch
2015-08-27 22:39 ` [RFC PATCH 1/2] x86: PCI bus specific MSI operations Keith Busch
2015-08-28 16:54   ` Thomas Gleixner [this message]
2015-08-28 21:39     ` Keith Busch
2015-08-29  1:46     ` Jiang Liu
2015-08-27 22:39 ` [RFC PATCH 2/2] x86/pci: Initial commit for new VMD device driver Keith Busch

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