From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757857Ab0JEMJl (ORCPT ); Tue, 5 Oct 2010 08:09:41 -0400 Received: from sm-d311v.smileserver.ne.jp ([203.211.202.206]:9431 "EHLO sm-d311v.smileserver.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757085Ab0JEMJj (ORCPT ); Tue, 5 Oct 2010 08:09:39 -0400 Message-ID: <002e01cb6486$2ed72cc0$66f8800a@maildom.okisemi.com> From: "Masayuki Ohtake" To: "Marc Kleine-Budde" Cc: "Samuel Ortiz" , "Christian Pellegrin" , "David S. Miller" , , "Tomoya MORINAGA" , , , , , , , , , , "Wolfgang Grandegger" References: <4C9C7C6F.1000003@dsn.okisemi.com> <4CA4541F.5040804@grandegger.com> <000401cb614f$c932c750$66f8800a@maildom.okisemi.com> <4CA5D6D7.3010608@grandegger.com> <000401cb6477$25a0eba0$66f8800a@maildom.okisemi.com> <4CAB0732.3010400@pengutronix.de> Subject: Re: [MeeGo-Dev][PATCH v3] Topcliff: Update PCH_CAN driver to 2.6.35 Date: Tue, 5 Oct 2010 21:09:30 +0900 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1983 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1983 X-Hosting-Pf: 0 X-NAI-Spam-Score: 1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Marc, On Tuesday, October 05, 2010 8:08 PM, Marc Kleine-Budde wrote: > If FIFO is working you might also think about NAPI. I think NAPI isn't necessary for our CAN driver. NAPI is for high-speed networking. CAN is NOT high-speed. In fact, some accepted CAN drivers don't have NAPI. Thanks, Ohtake(OKISemi) From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Masayuki Ohtake" Subject: Re: [MeeGo-Dev][PATCH v3] Topcliff: Update PCH_CAN driver to 2.6.35 Date: Tue, 5 Oct 2010 21:09:30 +0900 Message-ID: <002e01cb6486$2ed72cc0$66f8800a@maildom.okisemi.com> References: <4C9C7C6F.1000003@dsn.okisemi.com> <4CA4541F.5040804@grandegger.com> <000401cb614f$c932c750$66f8800a@maildom.okisemi.com> <4CA5D6D7.3010608@grandegger.com> <000401cb6477$25a0eba0$66f8800a@maildom.okisemi.com> <4CAB0732.3010400@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: andrew.chih.howe.khor-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, Samuel Ortiz , margie.foster-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wolfgang Grandegger , yong.y.wang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, socketcan-core-0fE9KPoRgkgATYTw5x5z8w@public.gmane.org, kok.howg.ewe-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, Christian Pellegrin , Tomoya MORINAGA , meego-dev-WXzIur8shnEAvxtiuMwx3w@public.gmane.org, "David S. Miller" , joel.clark-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, qi.wang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org To: "Marc Kleine-Budde" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: socketcan-core-bounces-0fE9KPoRgkgATYTw5x5z8w@public.gmane.org Errors-To: socketcan-core-bounces-0fE9KPoRgkgATYTw5x5z8w@public.gmane.org List-Id: netdev.vger.kernel.org Hi Marc, On Tuesday, October 05, 2010 8:08 PM, Marc Kleine-Budde wrote: > If FIFO is working you might also think about NAPI. I think NAPI isn't necessary for our CAN driver. NAPI is for high-speed networking. CAN is NOT high-speed. In fact, some accepted CAN drivers don't have NAPI. Thanks, Ohtake(OKISemi)