netdev - Re: [PATCH net-next] usbnet: use netif_tx_wake_queue instead of netif_start

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Date:	Thu, 15 Mar 2012 18:05:09 +0100
From:	Oliver Neukum <oneukum@...e.de>
To:	Alexey Orishko <alexey.orishko@...il.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	linux-usb@...r.kernel.org, greg@...ah.com,
	Alexey Orishko <alexey.orishko@...ricsson.com>
Subject: Re: [PATCH net-next] usbnet: use netif_tx_wake_queue instead of netif_start_queue

Am Mittwoch, 14. März 2012, 15:00:24 schrieb Alexey Orishko:
> If host is going to autosuspend function with two interfaces and
> if IP packet has arrived in-between of two usbnet_suspend() callbacks,
> i.e usbnet_resume() is called in-between, tx data flow is stopped.
> When autosuspend timer expires and device is put to autosuspend
> again, tx queue is waked up and data can be sent again.
> This behavior might be repeated several times in a row.
> 
> Tested on Intel/ARM.
> 
> Reviewed-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>
> Tested-by: Dmitry Tarnyagin <dmitry.tarnyagin@...ricsson.com>
> Signed-off-by: Alexey Orishko <alexey.orishko@...ricsson.com>
Acked-by: Oliver Neukum <oneukum@...e.de>
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