On Fri, Apr 09, 2021 at 01:38:37AM +0000, Saleem, Shiraz wrote:
> > Subject: Re: [PATCH v4 01/23] iidc: Introduce iidc.h
> > 
> > On Wed, Apr 07, 2021 at 07:43:24PM -0300, Jason Gunthorpe wrote:
> > > On Wed, Apr 07, 2021 at 08:58:49PM +0000, Saleem, Shiraz wrote:
> > > > > Subject: Re: [PATCH v4 01/23] iidc: Introduce iidc.h
> > > > >
> > > > > On Tue, Apr 06, 2021 at 04:01:03PM -0500, Shiraz Saleem wrote:
> > > > >
> > > > > > +/* Following APIs are implemented by core PCI driver */ struct
> > > > > > +iidc_core_ops {
> > > > > > +   /* APIs to allocate resources such as VEB, VSI, Doorbell queues,
> > > > > > +    * completion queues, Tx/Rx queues, etc...
> > > > > > +    */
> > > > > > +   int (*alloc_res)(struct iidc_core_dev_info *cdev_info,
> > > > > > +                    struct iidc_res *res,
> > > > > > +                    int partial_acceptable);
> > > > > > +   int (*free_res)(struct iidc_core_dev_info *cdev_info,
> > > > > > +                   struct iidc_res *res);
> > > > > > +
> > > > > > +   int (*request_reset)(struct iidc_core_dev_info *cdev_info,
> > > > > > +                        enum iidc_reset_type reset_type);
> > > > > > +
> > > > > > +   int (*update_vport_filter)(struct iidc_core_dev_info *cdev_info,
> > > > > > +                              u16 vport_id, bool enable);
> > > > > > +   int (*vc_send)(struct iidc_core_dev_info *cdev_info, u32 vf_id, 
> > > > > > u8
> > *msg,
> > > > > > +                  u16 len);
> > > > > > +};
> > > > >
> > > > > What is this? There is only one implementation:
> > > > >
> > > > > static const struct iidc_core_ops ops = {
> > > > >       .alloc_res                      = ice_cdev_info_alloc_res,
> > > > >       .free_res                       = ice_cdev_info_free_res,
> > > > >       .request_reset                  = ice_cdev_info_request_reset,
> > > > >       .update_vport_filter            = 
> > > > > ice_cdev_info_update_vsi_filter,
> > > > >       .vc_send                        = ice_cdev_info_vc_send,
> > > > > };
> > > > >
> > > > > So export and call the functions directly.
> > > >
> > > > No. Then we end up requiring ice to be loaded even when just want to
> > > > use irdma with x722 [whose ethernet driver is "i40e"].
> > >
> > > So what? What does it matter to load a few extra kb of modules?
> > 
> > And if user cares about it, he will blacklist that module anyway.
> > 
>  blacklist ice when you just have an x722 card? How does that solve anything? 
> You wont be able to load irdma then.

You will blacklist i40e if you want solely irdma functionality.

Thanks

> 
> Shiraz

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