From patchwork Mon Dec 16 06:47:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Abdul Rahim, Faizal" X-Patchwork-Id: 13909274 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 A1B111D0E26; Mon, 16 Dec 2024 06:48:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734331734; cv=none; b=UvlrfTgvAUnZ7B9VIIBKOht5fGMuM+eJRJbUychNsblY5jzoyTVNXAQr+xZps3IYP3NMGuhwv7zv+XVeToE68NWAmtmI9CjHT3dUT6W4Zo7hum/xGF/F/1Nw8Jql6nuR+SGQZmrXuzcXL1RSyzwoaUrJI4n6S+gMtu2x77D1ISg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734331734; c=relaxed/simple; bh=lp2ZOST2PsJMRL/3aLQoOskt3ewvhhs0cnvkLwFO9gY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Wf4Nq+/ZRHmif2dzMlNpBxW4Gck/wSIgI0Ncpapgo7fjl+1TWKt5viRRHmeclpp81SeKsBC/wFgeiGbAWP+Yg6ou2L/Cc35SaWQURZWjtiZHGHdz9gi6Q+D5yUmCvK5pLjzyOPzR6os3Tz7TGFZPSFplglQkkKJieZgThXKyYzM= 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=NUTbA5BC; arc=none smtp.client-ip=198.175.65.16 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="NUTbA5BC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734331733; x=1765867733; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lp2ZOST2PsJMRL/3aLQoOskt3ewvhhs0cnvkLwFO9gY=; b=NUTbA5BCJIzFgq5LX2MKtkAfOWTHkKNgEIUYZWFjLu+o1Wh0MxtokmAJ XVLSRqBix9Q7QtLleqNDdvGjyrJqrMUawAY4a3Kf23OOqgS7X/x3JngQU zzRH41kMRcntfYsWVc2HS9WlkPWaZk0xZ6izHQyQIe3TCimvldx/BAAqq 6aQ0+Brp+pJGB6qdRdfjhrbuxx0t9guSjMKOFz/lXDSf5GVHGswQ2WAUy Q3N05al/4l4CCR+SAhuTK0DjHIbfXe5vjwFWui+FyM+o2c2kMp4FsCRpe sCWQqnTUz9PUdzW4y2UV00+uKX02Mjp+GULje7OVH2m/lHWoIWNBzIbvN g==; X-CSE-ConnectionGUID: s5u/9W+HQ3OL/Hgt5678vg== X-CSE-MsgGUID: wAaC/hCLSLKXiV+7YoQvsw== X-IronPort-AV: E=McAfee;i="6700,10204,11287"; a="34848197" X-IronPort-AV: E=Sophos;i="6.12,237,1728975600"; d="scan'208";a="34848197" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Dec 2024 22:48:52 -0800 X-CSE-ConnectionGUID: Qo3+iPYiQk+lYjS+equ3Ng== X-CSE-MsgGUID: mRUZg2REQ/qZPZ0u3CJ5jQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="128101855" Received: from mohdfai2-ilbpg12-1.png.intel.com ([10.88.227.73]) by fmviesa001.fm.intel.com with ESMTP; 15 Dec 2024 22:48:48 -0800 From: Faizal Rahim To: Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Vinicius Costa Gomes Cc: Faizal Rahim , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH iwl-next 2/9] igc: Optimize the TX packet buffer utilization Date: Mon, 16 Dec 2024 01:47:13 -0500 Message-Id: <20241216064720.931522-3-faizal.abdul.rahim@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241216064720.931522-1-faizal.abdul.rahim@linux.intel.com> References: <20241216064720.931522-1-faizal.abdul.rahim@linux.intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Vinicius Costa Gomes Packet buffers (RX + TX) total 64KB. Neither RX or TX buffers can be larger than 34KB. So divide the buffer equally, 32KB for each. Signed-off-by: Vinicius Costa Gomes Signed-off-by: Faizal Rahim --- drivers/net/ethernet/intel/igc/igc_defines.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h index 8e449904aa7d..1f63a523faf2 100644 --- a/drivers/net/ethernet/intel/igc/igc_defines.h +++ b/drivers/net/ethernet/intel/igc/igc_defines.h @@ -400,7 +400,7 @@ #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 */ +#define IGC_TXPBSIZE_TSN 0x041c71c7 /* 7k bytes buffer for each queue + 4KB for BMC*/ #define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */ #define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */