Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-24 Thread Jiang Liu
On 2014/11/25 5:45, Alex Williamson wrote: > On Sun, 2014-11-23 at 21:20 +0100, Thomas Gleixner wrote: >> On Fri, 21 Nov 2014, Alex Williamson wrote: >>> For the most part multivector MSI is not supported and drivers and >>> hardware wanting multiple vectors opt for MSI-X instead. It seems >>>

Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-24 Thread Alex Williamson
On Sun, 2014-11-23 at 21:20 +0100, Thomas Gleixner wrote: > On Fri, 21 Nov 2014, Alex Williamson wrote: > > For the most part multivector MSI is not supported and drivers and > > hardware wanting multiple vectors opt for MSI-X instead. It seems > > though that having the ability to query the

Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-24 Thread Alex Williamson
On Sun, 2014-11-23 at 21:20 +0100, Thomas Gleixner wrote: On Fri, 21 Nov 2014, Alex Williamson wrote: For the most part multivector MSI is not supported and drivers and hardware wanting multiple vectors opt for MSI-X instead. It seems though that having the ability to query the

Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-24 Thread Jiang Liu
On 2014/11/25 5:45, Alex Williamson wrote: On Sun, 2014-11-23 at 21:20 +0100, Thomas Gleixner wrote: On Fri, 21 Nov 2014, Alex Williamson wrote: For the most part multivector MSI is not supported and drivers and hardware wanting multiple vectors opt for MSI-X instead. It seems though that

Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-23 Thread Thomas Gleixner
On Fri, 21 Nov 2014, Alex Williamson wrote: > For the most part multivector MSI is not supported and drivers and > hardware wanting multiple vectors opt for MSI-X instead. It seems > though that having the ability to query the arch/platform code to > determine whether allocating multiple MSI

Re: [PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-23 Thread Thomas Gleixner
On Fri, 21 Nov 2014, Alex Williamson wrote: For the most part multivector MSI is not supported and drivers and hardware wanting multiple vectors opt for MSI-X instead. It seems though that having the ability to query the arch/platform code to determine whether allocating multiple MSI vectors

[PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-21 Thread Alex Williamson
For the most part multivector MSI is not supported and drivers and hardware wanting multiple vectors opt for MSI-X instead. It seems though that having the ability to query the arch/platform code to determine whether allocating multiple MSI vectors will ever succeed is a useful thing. For

[PATCH 1/3] PCI/MSI: Initial hook for archs to declare multivector MSI support

2014-11-21 Thread Alex Williamson
For the most part multivector MSI is not supported and drivers and hardware wanting multiple vectors opt for MSI-X instead. It seems though that having the ability to query the arch/platform code to determine whether allocating multiple MSI vectors will ever succeed is a useful thing. For