linux-kernel - Re: [PATCH 2.6.19.2] r8169: support RTL8169SC/8110SC

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Message-ID: <20070206213827.GA25119@electric-eye.fr.zoreil.com>
Date:	Tue, 6 Feb 2007 22:38:27 +0100
From:	Francois Romieu <romieu@...zoreil.com>
To:	許恆嘉 <edward_hsu@...ltek.com.tw>
Cc:	jeff@...zik.org, linux-kernel@...r.kernel.org, hiwu@...ltek.com.tw
Subject: Re: [PATCH 2.6.19.2] r8169: support RTL8169SC/8110SC

edward_hsu@...ltek.com.tw :
[...]
> ANS_2:
> So, do you think that it is a good idea to keep other vendos's PID and
> DID in the part?

Yes.

[...]
> ANS_2:
> 
> Sure! You are right. RTL8110SC, RTL8111B and RTL8101E have modest
> differences, now. However, RTL8101E is a PCI-E fast ethernet controller.
> I don't think is a good idea to merge its Linux driver into r8168.c or
> r8169.c. RTL8110SC is the final version of Realtek PCI gigabit ethernet
> controller. Moreover, due to the increasing popularity of PCI-E, Realtek
> is going to design several generations of PCI-E ethernet controllers to
> satisfy customer requests. I have discussed this issue with my hardware
> colleagues. They believe that both MAC register layout and tx/rx
> descriptor layout will be changed a lot in new PCI-E ICs. Actually, they
> already did. Therefore, the hardwares of RTL8111B(PCI-E gigabit
> ethernet) and RTL8101E(PCI-E fast ethernet) will have frequent and
> drastic changes. So, I think that it's a good moment to separate their
> Linux drivers, and r8169.c can become stable.

Well, code and facts will tell. :o)

Since you asked for questions:

- will the ~7k limit for the jumbo frames be fixed ? One can hardly call
  it a feature.

- out of curiosity, did you try the current in-kernel r8169 driver with
  a 8111B or a 8101E ?

- is there any plan to open the programming manuals of the PCI-E chipsets ?

-- 
Ueimor
-
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