From patchwork Thu Feb 20 02:53:43 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Abdul Rahim, Faizal" X-Patchwork-Id: 13983238 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9EC3C1D9A70; Thu, 20 Feb 2025 02:54:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740020076; cv=none; b=Mf2yY+XbzAZE0CP3vMJVvfqwTCAaogI2urvhLpLpWPM+YyqWuha3fN3rU4+pQjMmo9xQ7fd3tXueRU/T1J3KcDne6ilyo2pPHRkBGrIIX+VDvLavWqEzhJqBWJQS7FpjHmFp/JCOR3q9n9bJA0kq0QurLGMILzUsEoBwgsYGHWg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740020076; c=relaxed/simple; bh=0OdUdx+lahN2+LUJ2jOFDFj83SCLzyn+8zKWv0oeisM=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OArKZjSpInI+vtzHLZnrAElmRY5vrrA8Eq6uNf2SBc1NbrROXy9pR/JhAsy1NqqFLBrVM51E0eGUwZRdXcQvlhk8TgWd6M5NY6TwhEXvuw6sveMwcImXDPldUqE/raJbqCD8y7Dt5BY0ln7/NZXgTBuJrZKpy2YHTyX2soYwmaA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Fq/Hzi0I; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Fq/Hzi0I" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1740020075; x=1771556075; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=0OdUdx+lahN2+LUJ2jOFDFj83SCLzyn+8zKWv0oeisM=; b=Fq/Hzi0IalYO3tN3xkpyjozXbI1YAQVA44YL+grFXtin5UxTyzpWHadg TrhOuMaACrOweQxupeeLi68X1vqwA/8eYCjteWgdILjUI+3w+/YA6whfG /pVnPmGjOh1xVzhHkTGYsfpoCaPXbjgAPZFeV/M+6A35dFkdHlcDjGMgz Ajo9bR//uSZz3f7rcgtsr4wbZPHq80GmqPLecHpKVLS6ghTLfOe7GBnDL YlIFId6WIckanMMbwYh+7gvtAnsBKjDxszYOXOSykUdfU28dhI0/9a8rE 7yhHoC+YdsZlRED93q34s4ogT9IcJhcr2+Jcsi0L7m7NkP+/uE1NzVTUq w==; X-CSE-ConnectionGUID: BRKGt5gATXeIJqrXfXVNcA== X-CSE-MsgGUID: pRuadj9jRoabiWcW7wQN8A== X-IronPort-AV: E=McAfee;i="6700,10204,11350"; a="41041957" X-IronPort-AV: E=Sophos;i="6.13,300,1732608000"; d="scan'208";a="41041957" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Feb 2025 18:54:34 -0800 X-CSE-ConnectionGUID: EwkMu9iDR0ilK+hqVznZsA== X-CSE-MsgGUID: HFzUk+/HR9mEDTXCYkmNAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,300,1732608000"; d="scan'208";a="115104284" Received: from mohdfai2-ilbpg12-1.png.intel.com ([10.88.227.73]) by fmviesa008.fm.intel.com with ESMTP; 19 Feb 2025 18:54:27 -0800 From: Faizal Rahim To: Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Simon Horman , Russell King , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Furong Xu <0x1207@gmail.com>, Russell King , Vladimir Oltean , Serge Semin , Xiaolei Wang , Suraj Jaiswal , Kory Maincent , Gal Pressman , Jesper Nilsson , Andrew Halaney , Choong Yong Liang , Faizal Rahim , Kunihiko Hayashi , Vinicius Costa Gomes , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, bpf@vger.kernel.org Subject: [PATCH iwl-next v5 3/9] igc: Optimize the TX packet buffer utilization Date: Wed, 19 Feb 2025 21:53:43 -0500 Message-Id: <20250220025349.3007793-4-faizal.abdul.rahim@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250220025349.3007793-1-faizal.abdul.rahim@linux.intel.com> References: <20250220025349.3007793-1-faizal.abdul.rahim@linux.intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Packet buffers (RX + TX) total 64KB. Neither RX or TX buffers can be larger than 34KB. So divide the buffer equally, 32KB for each. Co-developed-by: Vinicius Costa Gomes Signed-off-by: Vinicius Costa Gomes Signed-off-by: Faizal Rahim --- drivers/net/ethernet/intel/igc/igc_defines.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h index 8e449904aa7d..516ef70c98e9 100644 --- a/drivers/net/ethernet/intel/igc/igc_defines.h +++ b/drivers/net/ethernet/intel/igc/igc_defines.h @@ -400,7 +400,8 @@ #define I225_TXPBSIZE_DEFAULT 0x04000014 /* TXPBSIZE default */ #define IGC_RXPBS_CFG_TS_EN 0x80000000 /* Timestamp in Rx buffer */ -#define IGC_TXPBSIZE_TSN 0x04145145 /* 5k bytes buffer for each queue */ + /* 7KB bytes buffer for each tx queue (total 4 queues) + 4KB for BMC*/ +#define IGC_TXPBSIZE_TSN 0x041c71c7 #define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */ #define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */