From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E9EBC07E85 for ; Fri, 7 Dec 2018 20:55:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 571EF2083D for ; Fri, 7 Dec 2018 20:55:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LjLn9ZWk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 571EF2083D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nNIqHHErRgboa/Whz40iCByovT0arfR0oWLUYQ9hihc=; b=LjLn9ZWkix30ne qVTfkaFhcRjF1HlM5L+eG3g4u0VeVAUZP16sYjrY/90V3QRwTS2Kl9PMiFh3AfZ9tHYQ0BzZ5Sn8g M/5u4ENrBzeoih6Ww/FxRR11e7yO3gYe8tnFkicJIjxhv+ma3fJGTn86LVkfS0sonDn6xOUa1rW9s CSHcyVqc3+8uROruFZUBr2zXoY+1aym605TAwLgrQmSN2t5o57Rn6LnI1bNLc9P1e+7mNc/K94oBQ /mKX4BmjWgWhCUeQhkIqCoG0gzlbJfriPC+2b0O+NnaHGaGVB79GR8+RobLCJh9UTc6ar09av89t1 SKPjd4iT8gUqxyy+rfDA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gVNA9-00031e-DV; Fri, 07 Dec 2018 20:55:53 +0000 Received: from muru.com ([72.249.23.125]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gVNA4-00030W-KX for linux-arm-kernel@lists.infradead.org; Fri, 07 Dec 2018 20:55:50 +0000 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id CB6C180C0; Fri, 7 Dec 2018 20:55:39 +0000 (UTC) Date: Fri, 7 Dec 2018 12:55:33 -0800 From: Tony Lindgren To: Russell King - ARM Linux Subject: Re: OMAP4430 SDP with KS8851: very slow networking Message-ID: <20181207205533.GU6707@atomide.com> References: <20181206132256.GT30658@n2100.armlinux.org.uk> <20181206163154.GK6707@atomide.com> <20181206180806.GV6920@n2100.armlinux.org.uk> <20181206221447.GM6707@atomide.com> <20181207180020.GA9507@n2100.armlinux.org.uk> <20181207181420.GS6707@atomide.com> <20181207190312.GT6707@atomide.com> <20181207192731.GB9507@n2100.armlinux.org.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181207192731.GB9507@n2100.armlinux.org.uk> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181207_125548_714125_33F6D6B5 X-CRM114-Status: UNSURE ( 6.19 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, Grygorii Strashko , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org * Russell King - ARM Linux [181207 19:27]: > You mentioned that edge mode didn't work as well as level mode on > duovero smsc controller, I think this may help to solve the same > issue but for edge IRQs - we need a mask_ack_irq function to avoid > acking while the edge interrupt is masked. Let me know if that > lowers the smsc ping latency while in edge mode. Looks like smsc edge interrupt is still producing varying ping latencies with this. Seems like the mas_ack_irq is a nice improvment though. Regards, Tony _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel