From patchwork Thu Nov 14 11:42:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1194765 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="ZcuXCTiO"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47DKNr73P6z9sPF for ; Thu, 14 Nov 2019 22:43:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726985AbfKNLnB (ORCPT ); Thu, 14 Nov 2019 06:43:01 -0500 Received: from us03-smtprelay2.synopsys.com ([149.117.87.133]:57002 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726057AbfKNLnA (ORCPT ); Thu, 14 Nov 2019 06:43:00 -0500 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id C6F35C04CB; Thu, 14 Nov 2019 11:42:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1573731780; bh=Ip3ZDkHX7NjVjcJ1Wnwx1pavIU7mIEYu8qbPr6qGCVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=ZcuXCTiOyO4x7L2slGvboBjx9pAkBuAj2xDFb6RacVMwca/WGNqgEdv5uny8ri6kw ep2/bhLpzo68DDO0kSpFoGoBjS9TB79CFklOMiciQ2abw8RMwdMih3eAqfxZhPdTNa eRlaiwJVSf7WDRJOApAYav1J+aB3akErKDiqbFp30cQDl086VAmu9UHht4RYeef3n+ GnePVc6ls7l5Yp3HznJ4WFefZdZs/12ai472ku1XtLH8gSVJ8CkP2mgPW+jpzHMZlm PHEpmSrPs6g0llMvg2+HfcotxCZzSVkLleGY7sam397Qjb3yValCZtXrx2ZIQs46ZE 6aZ99eiK4eNSw== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 72751A008C; Thu, 14 Nov 2019 11:42:53 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 net-next 4/7] net: stmmac: xgmac: Remove uneeded computation for RFA/RFD Date: Thu, 14 Nov 2019 12:42:48 +0100 Message-Id: <10ee9bed71e3215c2d28c9e302962af72266f03d.1573731453.git.Jose.Abreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org RFA and RFD should not be dependent on FIFO size. In fact, the more FIFO space we have, the later we can activate Flow Control. Let's use hard-coded values for RFA and RFD for all FIFO sizes with the exception of 4k, which is a special case. Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index f148cb2061d8..22a7f0cc1b90 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -183,19 +183,9 @@ static void dwxgmac2_dma_rx_mode(void __iomem *ioaddr, int mode, rfa = 0x01; /* Full-1.5K */ break; - case 8192: - rfd = 0x06; /* Full-4K */ - rfa = 0x0a; /* Full-6K */ - break; - - case 16384: - rfd = 0x06; /* Full-4K */ - rfa = 0x12; /* Full-10K */ - break; - default: - rfd = 0x06; /* Full-4K */ - rfa = 0x1e; /* Full-16K */ + rfd = 0x07; /* Full-4.5K */ + rfa = 0x04; /* Full-3K */ break; }