linux-kernel - RE: [PATCH net-next 6/7] r8169: add a new chip for RTL8106E

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Message-ID: <AB471B8BF00E49B38C3F20840B5B82A2@realtek.com.tw>
Date:	Tue, 2 Apr 2013 10:59:29 +0800
From:	hayeswang <hayeswang@...ltek.com>
To:	'Francois Romieu' <romieu@...zoreil.com>
CC:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH net-next 6/7] r8169: add a new chip for RTL8106E

Francois Romieu [mailto:romieu@...zoreil.com] 
> Sent: Tuesday, April 02, 2013 6:24 AM
> To: Hayeswang
> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH net-next 6/7] r8169: add a new chip for RTL8106E
> 
> Hayes Wang <hayeswang@...ltek.com> :
> [...]
> > - move rtl_set_rx_tx_desc_registers to avoid the tx/rx are enabled
> >   before setting desc registers.
> 
> This is a wholesale change for the 810x family.
> 
> Please explain why issuing rtl_set_rx_tx_desc_registers before writing
> ChipCmd is not enough and feed it through a standalone commit.
> 

According to the new initial flow of this new chip, the tx/rx would be enabled
in rtl_hw_start_8168g_2 function. And this function is run before
rtl_set_rx_tx_desc_registers. It would be a problem, so I move
rtl_set_rx_tx_desc_registers to make sure that the descriptor address would be
set before the tx/rx is enabled. It has no influence for the previous chips, and
I think the following new chips would base on the new flow.
 
Best Regards,
Hayes

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