RE: [PATCH v3 02/13] scsi: fnic: Add and use fnic number

From: Karan Tilak Kumar (kartilak)
Date: Wed Nov 29 2023 - 12:26:47 EST


On Monday, November 27, 2023 12:18 PM, Karan Tilak Kumar (kartilak) wrote:
>
> On Friday, November 24, 2023 5:22 PM, Martin K. Petersen <martin.petersen@xxxxxxxxxx> wrote:
> >
> >
> > Hi Karan,
> >
> > > Add fnic_num in fnic.h to identify fnic in a multi-fnic environment.
> > > Increment and set the fnic number during driver load in fnic_probe.
> > > Replace the host number with fnic number in debugfs.
> >
> > I agree with Hannes. Everything else in the stack will be using the host number. Your change will make it harder to correlate a SCSI error message to an fnic driver instance.
> >
> > If you absolutely need an instance number I suggest you add it as an orthogonal value instead replacing the host. Also, we typically use an idr for enumerating things like this.
> >
>
> Thanks for your review and comments, Martin.
>
> I understand the issue. I'll take your suggestion about adding the fnic instance number as an orthogonal value instead of replacing the host number.
> Could you please help me understand what is meant by "idr"? How can I use it?
>

I found it in the Linux documentation.
I'll make suitable changes and re-submit the patch set as V4.

Regards,
Karan