netdev - Re: [net-next.git 4/4 (v4)] stmmac: add the Energy Efficient Ethernet support

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Message-ID: <4FD75138.2090503@st.com>
Date:	Tue, 12 Jun 2012 16:24:56 +0200
From:	Giuseppe CAVALLARO <peppe.cavallaro@...com>
To:	Yuval Mintz <yuvalmin@...adcom.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"bhutchings@...arflare.com" <bhutchings@...arflare.com>,
	"rayagond@...avyalabs.com" <rayagond@...avyalabs.com>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [net-next.git 4/4 (v4)] stmmac: add the Energy Efficient Ethernet
 support

On 6/12/2012 3:09 PM, Yuval Mintz wrote:
> Hi Giuseppe,
> 
>> @@ -1541,10 +1663,37 @@ static irqreturn_t stmmac_interrupt(int irq,
>> void *dev_id)
>> +		if (unlikely(status)) {
>> +			if (status & core_mmc_tx_irq)
>> +				priv->xstats.mmc_tx_irq_n++;
>> +			if (status & core_mmc_rx_irq)
>> +				priv->xstats.mmc_rx_irq_n++;
>> +			if (status & core_mmc_rx_csum_offload_irq)
>> +				priv->xstats.mmc_rx_csum_offload_irq_n++;
>> +			if (status & core_irq_receive_pmt_irq)
>> +				priv->xstats.irq_receive_pmt_irq_n++;
>> +
> 
> Are these EEE related?
> 
>> +	/* To handle DMA interrupts */
> 
> Is this related?
> 

To clearly manage and expose the lpi interrupt status and eee ethtool
stats I've had to do some modifications to the driver's design and I
found really useful to move other parts of the code (e.g. mmc irq stat)
in the main directly. So this just is the result of a complete reworking
made to introduce the EEE. I could better document it in the patch's
comment or create a separate patch that could take a while.

Cheers
Peppe

> 
> Cheers,
> Yuval Mintz
> 
> 
> 


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