netdev - RE: NAPI on USB network drivers

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Date:   Wed, 25 Jan 2017 09:39:42 +0000
From:   Hayes Wang <hayeswang@...ltek.com>
To:     Oliver Neukum <oneukum@...e.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: NAPI on USB network drivers

Oliver Neukum [mailto:oneukum@...e.com]
> Sent: Wednesday, January 25, 2017 5:35 PM
[...]
> looking at r8152 I noticed that it uses NAPI. I never considered
> this for the generic USB networking code as you cannot disable
> interrupts for USB. Is it still worth it? What are the benefits?

You could use napi_gro_receive() and it influences the performance.

Best Regards,
Hayes