linux-kernel - Re: [PATCH 13/14] Documentation/ABI: Update IFS ABI doc

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Message-ID: <0722deb9-797b-c8b6-ac15-a6d9a7d50a67@intel.com>
Date:   Tue, 1 Nov 2022 15:34:19 -0700
From:   Sohil Mehta <sohil.mehta@...el.com>
To:     Jithu Joseph <jithu.joseph@...el.com>, <hdegoede@...hat.com>,
        <markgross@...nel.org>
CC:     <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
        <dave.hansen@...ux.intel.com>, <x86@...nel.org>, <hpa@...or.com>,
        <gregkh@...uxfoundation.org>, <ashok.raj@...el.com>,
        <tony.luck@...el.com>, <linux-kernel@...r.kernel.org>,
        <platform-driver-x86@...r.kernel.org>, <patches@...ts.linux.dev>,
        <ravi.v.shankar@...el.com>, <thiago.macieira@...el.com>,
        <athenas.jimenez.gonzalez@...el.com>
Subject: Re: [PATCH 13/14] Documentation/ABI: Update IFS ABI doc

On 10/21/2022 1:34 PM, Jithu Joseph wrote:
> -What:		/sys/devices/virtual/misc/intel_ifs_<N>/reload
> -Date:		April 21 2022
> -KernelVersion:	5.19
> +What:		/sys/devices/virtual/misc/intel_ifs_<N>/current_batch
> +Date:		Sept 30 2022
> +KernelVersion:	6.2
>   Contact:	"Jithu Joseph" <jithu.joseph@...el.com>
> -Description:	Write "1" (or "y" or "Y") to reload the IFS image from
> -		/lib/firmware/intel/ifs/ff-mm-ss.scan.
> +Description:	Write a number less than or equal to 0xff to load an IFS test image.
> +		The number written treated as the 2 digit suffix in the following file name:
> +		/lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan
> +		Reading the file will provide the suffix of the currently loaded IFS test image.

A few places in the code use the following string: 
family-model-stepping-02x.{testname}

Does that mean that the in future there might be other extensions apart 
from .scan?

If so, current_batch would let the user identify the 2 digit suffix but 
how would they identify which testname is current loaded?