netdev - Re: wwan/iosm vs. xmm7360

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Message-ID: <20210907180144.c2jakttbigc5x7dm@tp>
Date:   Tue, 7 Sep 2021 20:01:44 +0200
From:   Florian Klink <flokli@...kli.de>
To:     Jan Kiszka <jan.kiszka@...mens.com>
Cc:     "Kumar, M Chetan" <m.chetan.kumar@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Netdev List <netdev@...r.kernel.org>,
        linuxwwan@...el.com
Subject: Re: wwan/iosm vs. xmm7360

On 21-08-06 11:41:27, Jan Kiszka wrote:
>On 06.08.21 11:29, Kumar, M Chetan wrote:
>> Hi Jan,
>>
>> What is the context of this request ?
>
>The context is that there are many folks out there (me included - Lenovo
>P52) with devices that have the xmm-7360 built-in, can't switch it to
>USB mode (prevented by OEM), and currently require [1]. That kind of
>works but is not really the final solution. So I also kicked off [2] there.

It also seems the 7560 card doesn't show up in my X13 AMD (Gen 1) at all
- so even if I'd "upgrade" that card, I couldn't use it.

>I know. I'm not an expert on the details, but reading the overall
>architectures of the IOSM and what has been reverse-engineered for the
>7360, there seem to be some similarities. So, maybe you can explain to
>the community if that is a reasonable path to upstream 7360 support, or
>if at least the pattern of the 7560 could/should be transferred to the
>7360 driver.

Very curious about this as well - they might share some code at lest, if
not even the driver?

Regards,
Florian

>
>Thanks,
>Jan
>
>[2] https://github.com/xmm7360/xmm7360-pci/issues/104
>
>>
>> Regards,
>> Chetan
>>
>> On 8/6/2021 2:09 AM, Jan Kiszka wrote:
>>> Hi Chetan,
>>>
>>> at the risk of having missed this being answered already:
>>>
>>> How close is the older xmm7360 to the now supported xmm7560 in mainline?
>>>
>>> There is that reverse engineered PCI driver [1] with non-standard
>>> userland interface, and it would obviously be great to benefit from
>>> common infrastructure and specifically the modem-manager compatible
>>> interface. Is this realistic to achieve for the 7360, or is that
>>> hardware or its firmware too different?
>>>
>>> Thanks,
>>> Jan
>>>
>>> [1] https://github.com/xmm7360/xmm7360-pci
>>>
>
>-- 
>Siemens AG, T RDA IOT
>Corporate Competence Center Embedded Linux

-- 
Florian Klink