From patchwork Mon Apr 22 14:52:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 238563 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id C0A8F2C011E for ; Tue, 23 Apr 2013 00:59:27 +1000 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id BDCA84A59D; Mon, 22 Apr 2013 16:59:25 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F+kYQMX4+9Uf; Mon, 22 Apr 2013 16:59:25 +0200 (CEST) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 2E5204A596; Mon, 22 Apr 2013 16:59:23 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 3482B4A596 for ; Mon, 22 Apr 2013 16:59:21 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QI6uPyMTcp-k for ; Mon, 22 Apr 2013 16:59:20 +0200 (CEST) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by theia.denx.de (Postfix) with ESMTPS id 74EBB4A38E for ; Mon, 22 Apr 2013 16:59:18 +0200 (CEST) Received: by mail-wi0-f172.google.com with SMTP id hm14so1383639wib.11 for ; Mon, 22 Apr 2013 07:59:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references:in-reply-to:references:content-type :x-gm-message-state; bh=ZOcXqVAvGLIhwFG44MiEnKkFq9RIbXi/r2RtiaFIYfA=; b=FJvIRGl8VfuKvaq5wx/6PDkuVh+PaNDZTqmOO+qbnKlISf0udo2WSSEMGZL2slYAf1 HYNnqWXfRtm/5mRA2cnBVGTlx3QQB5kBos2aH458e6BDIxDOLtuLRkEE+/Z3C32c3DAr 9gLvOPpFCdN6ksiyIPhe1Hcssbm7wNlhHdl6sox44ouBpHq8aQE0fJIISFr8kQ0P+Eie XX5cNWQonfEQTI3XrT9GwEIJDQyJGvghHFBdswPBWQwHYPE2LlC/RF8DrkfJuS9tDD1x nDUTngKcwPQ+PpjlMOmblTv4+sEKcvfsLa4bvFvKln2MNIzc7///WLnc1aOO/O32gQTC qh5Q== X-Received: by 10.194.173.228 with SMTP id bn4mr53247042wjc.20.1366642350451; Mon, 22 Apr 2013 07:52:30 -0700 (PDT) Received: from localhost (nat-63.starnet.cz. [178.255.168.63]) by mx.google.com with ESMTPSA id nf9sm2867350wic.3.2013.04.22.07.52.29 for (version=TLSv1.1 cipher=RC4-SHA bits=128/128); Mon, 22 Apr 2013 07:52:29 -0700 (PDT) From: Michal Simek To: u-boot@lists.denx.de, Albert Aribaud Date: Mon, 22 Apr 2013 16:52:02 +0200 Message-Id: <781deb599094cf805563f4dc4d6548a44a08442b.1366641836.git.michal.simek@xilinx.com> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1366642332-11185-1-git-send-email-michal.simek@xilinx.com> References: <1366642332-11185-1-git-send-email-michal.simek@xilinx.com> In-Reply-To: <98a6e4d33e61c56c76b9bd78ef5d8e74ebd1510c.1366641836.git.michal.simek@xilinx.com> References: <98a6e4d33e61c56c76b9bd78ef5d8e74ebd1510c.1366641836.git.michal.simek@xilinx.com> X-Gm-Message-State: ALoCoQlCSOjMNW9Lccnl/80fxxW1AGS/a1jLA/sPj3hQwIiz/fbn6rG+JELjqVvHmv9cE3dOxRBJ Cc: Peter Crosthwaite , Jagannadha Sutradharudu Teki Subject: [U-Boot] [PATCH 04/14] net: gem: Remove WRAP bit from TX buffer description X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de From: Michal Simek Removing this bit causes that frame is sent only once. (With wrap big one packet has been sent several times which dramatically decrease throughput) TRM: (Table 16-3: Tx Buffer Descriptor Entry) Signed-off-by: Michal Simek Signed-off-by: Michal Simek --- drivers/net/zynq_gem.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) -- 1.8.2.1 diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 3596065..7188b9e 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -310,8 +310,7 @@ static int zynq_gem_send(struct eth_device *dev, void *ptr, int len) memset((void *) &(priv->tx_bd), 0, sizeof(struct emac_bd)); priv->tx_bd.addr = (u32)ptr; - priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK | - ZYNQ_GEM_TXBUF_WRAP_MASK; + priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK; /* Start transmit */ setbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_STARTTX_MASK);