[dpdk-dev] [PATCH v6 2/8] eal/linux: add rx queue interrupt FDs to intr handle struct

[Thomas Monjalon]

2015-02-27 11:28, Liang, Cunming:
> From: David Marchand [mailto:david.marchand at 6wind.com]
> Sent: Friday, February 27, 2015 6:33 PM
> On Fri, Feb 27, 2015 at 5:56 AM, Cunming Liang <cunming.liang at 
> intel.com<mailto:cunming.liang at intel.com>> wrote:
> > --- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
> > +++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
> > @@ -38,6 +38,9 @@
> > 
> >  #ifndef _RTE_LINUXAPP_INTERRUPTS_H_
> >  #define _RTE_LINUXAPP_INTERRUPTS_H_
> > 
> > +#define VFIO_MAX_RXTX_INTR_ID        32
> > +#define VFIO_MAX_QUEUE_ID            VFIO_MAX_RXTX_INTR_ID> 
> This is a little weird to talk about vfio here.
> This file is "generic".
> 
> Ok, you will store vfio eventfds here, but vfio is an implementation, not the 
> abstraction.
> [Liang, Cunming] If looking at the rte_intr_hanle_type, it includes 
> UIO/VFIO_LEGACY/VFIO_MSI/VFIO_MSIX.
> I agree, VFIO is an implementation, but the different type combination is a 
> kind of ?abstraction?.
> So in rte_intr_handle (like a multiplexing), some specified field for vfio 
> interrupter mapping, I feel it?s reasonable.
> 
> 
> --
> David Marchand
>