netdev - Re: [PATCH net] alx: fix alx

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Date:	Sun, 11 Jan 2015 21:46:36 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	oded.gabbay@....com, johannes.berg@...el.com, edumazet@...gle.com,
	netdev@...r.kernel.org, willemb@...gle.com, John.Bridgman@....com,
	Dana.Elifaz@....com
Subject: Re: [PATCH net] alx: fix alx_poll()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sun, 11 Jan 2015 10:32:18 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Commit d75b1ade567f ("net: less interrupt masking in NAPI") uncovered
> wrong alx_poll() behavior.
> 
> A NAPI poll() handler is supposed to return exactly the budget when/if
> napi_complete() has not been called.
> 
> It is also supposed to return number of frames that were received, so
> that netdev_budget can have a meaning.
> 
> Also, in case of TX pressure, we still have to dequeue received
> packets : alx_clean_rx_irq() has to be called even if
> alx_clean_tx_irq(alx) returns false, otherwise device is half duplex.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Fixes: d75b1ade567f ("net: less interrupt masking in NAPI")
> Reported-by: Oded Gabbay <oded.gabbay@....com>
> Bisected-by: Oded Gabbay <oded.gabbay@....com>
> Tested-by: Oded Gabbay <oded.gabbay@....com>

Applied and queued up for -stable, thanks Eric.
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