netdev - RE: NAPI on USB network drivers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <0835B3720019904CB8F7AA43166CEEB201A134A7@RTITMBSV06.realtek.com.tw>
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