linux-kernel - [PATCH v4 -tip 0/3] x86, MSI, AHCI: Support multiple MSIs

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Date:	Thu, 25 Oct 2012 10:32:18 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Jeff Garzik <jgarzik@...ox.com>,
	Matthew Wilcox <willy@...ux.intel.com>, x86@...nel.org,
	linux-pci@...r.kernel.org, linux-ide@...r.kernel.org
Subject: [PATCH v4 -tip 0/3] x86, MSI, AHCI: Support multiple MSIs

Hi Ingo,

I am resending this series with changes based on your review of v3:

	I have not noticed that v3 2/5 patch "x86, MSI: Allocate as many
	multiple IRQs as requested" is redundant, since the AHCI code
	tries to allocate maximum possible number of MSIs. As there are
	no other users of this functionality, I removed v3 2/5 patch for now;

	v3 patch 3/5 "x86, MSI: Minor readability fixes" merged into
  	v4 patch 1/3 "x86, MSI: Support multiple MSIs in presense of IRQ
	remapping";

	1/3:	- racy can_create_irqs() check removed;
		- multi-line comments fixed;
		- loops 'for (; i; i--)' changed to 'for (i--; i >= 0; i--)';

		v1 was conditionally acked by Suresh
		v2 concerned Yinghai's comments

	2/3:	v2 is acked by Bjorn, no changes since

	3/3:	- ahci_host_activate() failure path tested;
		- ahci_port_priv::lock field commented;
		- multi-line comments fixed;
		- loops 'for (; i; i--)' changed to 'for (i--; i >= 0; i--)';

		v3 was acked by Jeff

Alexander Gordeev (3):
  1/3 x86, MSI: Support multiple MSIs in presense of IRQ remapping
  2/3 PCI, MSI: Enable multiple MSIs with pci_enable_msi_block_auto()
  3/3 AHCI: Support multiple MSIs

 Documentation/PCI/MSI-HOWTO.txt |   37 ++++++++-
 arch/x86/kernel/apic/io_apic.c  |  165 +++++++++++++++++++++++++++++++--------
 drivers/ata/ahci.c              |   93 +++++++++++++++++++++-
 drivers/ata/ahci.h              |    6 ++
 drivers/ata/libahci.c           |  118 ++++++++++++++++++++++++++--
 drivers/pci/msi.c               |   26 ++++++
 include/linux/irq.h             |    5 +
 include/linux/pci.h             |    7 ++
 kernel/irq/chip.c               |   30 +++++--
 9 files changed, 432 insertions(+), 55 deletions(-)

-- 
1.7.7.6


-- 
Regards,
Alexander Gordeev
agordeev@...hat.com
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