Re: [Xen-devel] [PATCH v1 15/21] Powerpc/MSI: Use MSI chip framework to configure MSI/MSI-X irq

[wangyijing <wangyijing0307@xxxxxxxxx>]

> 在 2014年9月5日，18:47，Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> 写道：
> 
> Hello.
> 
>> On 9/5/2014 2:10 PM, 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.
> 
>> Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
>> ---
>>  arch/powerpc/kernel/msi.c |   14 ++++++++++++--
>>  1 files changed, 12 insertions(+), 2 deletions(-)
> 
>> diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c
>> index 71bd161..01781a4 100644
>> --- a/arch/powerpc/kernel/msi.c
>> +++ b/arch/powerpc/kernel/msi.c
> [...]
>> @@ -27,7 +27,17 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, 
>> int type)
>>      return ppc_md.setup_msi_irqs(dev, nvec, type);
>>  }
>> 
>> -void arch_teardown_msi_irqs(struct pci_dev *dev)
>> +static void ppc_teardown_msi_irqs(struct pci_dev *dev)
> 
>   Shouldn't this function take IRQ # instead?

This function need to teardown all msi irqs of the pci dev, we should pass the 
pci dev as argument .

Thanks!
Yijing.

> 
>>  {
>>      ppc_md.teardown_msi_irqs(dev);
>>  }
>> +
>> +static struct msi_chip ppc_msi_chip = {
>> +    .setup_irqs = ppc_setup_msi_irqs,
>> +    .teardown_irqs = ppc_teardown_msi_irqs,
>> +};
>> +
>> +struct msi_chip *arch_find_msi_chip(struct pci_dev *dev)
>> +{
>> +    return &ppc_msi_chip;
>> +}
> 
> WBR, Sergei
> 
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