From: wangyijing@huawei.com (Yijing Wang)
To: linux-arm-kernel@lists.infradead.org
Subject: [Xen-devel] [PATCH v1 08/21] x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq
Date: Thu, 11 Sep 2014 09:27:10 +0800 [thread overview]
Message-ID: <5410FA6E.8080708@huawei.com> (raw)
In-Reply-To: <54104641.7020007@citrix.com>
On 2014/9/10 20:38, David Vrabel wrote:
> On 09/09/14 03:06, Yijing Wang wrote:
>> On 2014/9/5 22:29, David Vrabel wrote:
>>> On 05/09/14 11:09, Yijing Wang wrote:
>>>> Use MSI chip framework instead of arch MSI functions to configure
>>>> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework.
>>> [...]
>>>> --- a/arch/x86/pci/xen.c
>>>> +++ b/arch/x86/pci/xen.c
>>> [...]
>>>> @@ -418,9 +430,9 @@ int __init pci_xen_init(void)
>>>> #endif
>>>>
>>>> #ifdef CONFIG_PCI_MSI
>>>> - x86_msi.setup_msi_irqs = xen_setup_msi_irqs;
>>>> - x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
>>>> - x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs;
>>>> + xen_msi_chip.setup_irqs = xen_setup_msi_irqs;
>>>> + xen_msi_chip.teardown_irqs = xen_teardown_msi_irqs;
>>>> + x86_msi_chip = &xen_msi_chip;
>>>> msi_chip.irq_mask = xen_nop_msi_mask;
>>>> msi_chip.irq_unmask = xen_nop_msi_mask;
>>>
>>> Why have these not been changed to set the x86_msi_chip.mask/unmask
>>> fields instead?
>>
>> Hi David, x86_msi_chip here is struct msi_chip data type, used to configure MSI/MSI-X
>> irq. msi_chip above is struct irq_chip data type, represent the MSI irq controller. They are
>> not the same object. Their name easily confusing people.
>
> Ok, it all makes sense now.
>
> Acked-by: David Vrabel <david.vrabel@citrix.com>
Thanks!
>
> David
>
> .
>
--
Thanks!
Yijing
next prev parent reply other threads:[~2014-09-11 1:27 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 10:09 [PATCH v1 00/21] Use MSI chip to configure MSI/MSI-X in all platforms Yijing Wang
2014-09-05 10:09 ` [PATCH v1 01/21] PCI/MSI: Clean up struct msi_chip argument Yijing Wang
2014-09-05 10:09 ` [PATCH v1 02/21] PCI/MSI: Remove useless bus->msi assignment Yijing Wang
2014-09-05 10:09 ` [PATCH v1 03/21] MSI: Remove the redundant irq_set_chip_data() Yijing Wang
2014-09-15 14:00 ` Lucas Stach
2014-09-16 1:30 ` Yijing Wang
2014-09-16 10:29 ` Lucas Stach
2014-09-16 10:37 ` Yijing Wang
2014-09-05 10:09 ` [PATCH v1 04/21] x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq() Yijing Wang
2014-09-10 12:36 ` [Xen-devel] " David Vrabel
2014-09-11 1:22 ` Yijing Wang
2014-09-11 13:08 ` David Vrabel
2014-09-05 10:09 ` [PATCH v1 05/21] PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip Yijing Wang
2014-09-15 14:42 ` Lucas Stach
2014-09-16 2:08 ` Yijing Wang
2014-09-05 10:09 ` [PATCH v1 06/21] PCI/MSI: Refactor struct msi_chip to make it become more common Yijing Wang
2014-09-15 14:44 ` Lucas Stach
2014-09-16 2:09 ` Yijing Wang
2014-09-05 10:09 ` [PATCH v1 07/21] x86/MSI: Use MSI chip framework to configure MSI/MSI-X irq Yijing Wang
2014-09-05 10:09 ` [PATCH v1 08/21] x86/xen/MSI: " Yijing Wang
2014-09-05 14:29 ` [Xen-devel] " David Vrabel
2014-09-09 2:06 ` Yijing Wang
2014-09-10 12:38 ` David Vrabel
2014-09-10 14:59 ` Konrad Rzeszutek Wilk
2014-09-11 1:28 ` Yijing Wang
2014-09-11 1:27 ` Yijing Wang [this message]
2014-09-05 10:09 ` [PATCH v1 09/21] Irq_remapping/MSI: " Yijing Wang
2014-09-05 10:42 ` Sergei Shtylyov
2014-09-05 11:30 ` wangyijing
2014-09-05 10:09 ` [PATCH v1 10/21] x86/MSI: Remove unused MSI weak arch functions Yijing Wang
2014-09-05 10:09 ` [PATCH v1 11/21] MIPS/Octeon/MSI: Use MSI chip framework to configure MSI/MSI-X irq Yijing Wang
2014-09-05 10:09 ` [PATCH v1 12/21] MIPS/Xlp: Remove the dead function destroy_irq() to fix build error Yijing Wang
2014-09-05 10:09 ` [PATCH v1 13/21] MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq Yijing Wang
2014-09-05 10:09 ` [PATCH v1 14/21] MIPS/Xlr/MSI: " Yijing Wang
2014-09-05 10:10 ` [PATCH v1 15/21] Powerpc/MSI: " Yijing Wang
2014-09-05 10:47 ` Sergei Shtylyov
2014-09-05 11:33 ` wangyijing
2014-09-05 11:41 ` Sergei Shtylyov
2014-09-16 5:28 ` Michael Ellerman
2014-09-16 5:40 ` Yijing Wang
2014-09-05 10:10 ` [PATCH v1 16/21] s390/MSI: " Yijing Wang
2014-09-16 11:35 ` Sebastian Ott
2014-09-17 1:24 ` Yijing Wang
2014-09-05 10:10 ` [PATCH v1 17/21] arm/iop13xx/MSI: " Yijing Wang
2014-09-05 10:10 ` [PATCH v1 18/21] IA64/MSI: " Yijing Wang
2014-09-05 10:10 ` [PATCH v1 19/21] Sparc/MSI: " Yijing Wang
2014-09-05 10:10 ` [PATCH v1 20/21] tile/MSI: " Yijing Wang
2014-09-05 10:10 ` [PATCH v1 21/21] PCI/MSI: Clean up unused MSI arch functions Yijing Wang
2014-09-15 14:47 ` Lucas Stach
2014-09-16 2:09 ` Yijing Wang
2014-09-23 21:09 ` [PATCH v1 00/21] Use MSI chip to configure MSI/MSI-X in all platforms Bjorn Helgaas
2014-09-24 3:52 ` Yijing Wang
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