From patchwork Fri May 3 13:57:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Burakov, Anatoly" X-Patchwork-Id: 139835 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0AD9A43F76; Fri, 3 May 2024 15:59:10 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B6F0540691; Fri, 3 May 2024 15:58:35 +0200 (CEST) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by mails.dpdk.org (Postfix) with ESMTP id 778CC40696 for ; Fri, 3 May 2024 15:58:32 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714744712; x=1746280712; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KNwVgMK74daK+8GeOdSPC/0KjPrYJG4OqNRSZpdF94c=; b=leT5q659NHJ6xH9Vo+T83VCoD9fuNb8z+d+ViQCptZqZpaYi1cu2lNQ8 Ohc+Q79gU+2U65I3y9g4EkC5/gb4Wd1yUnCgdCudhfjn4RlGGIAsun3+J VYuHb5ibvxG4fZpZtE5zllUgi7Vbtlur7GC+cSGGfdq1BD8pj0d5DQ88R 1Peh3EwRcbemKfn0FShrDsZyIK2u8lMXEOhOHlFeOLhqHC4lnZ13Dbwly ghjIUwr6ZNquGJa6ji9xJkpB9uFiS6olthv3p0/bgez1Fi51kblI8RwzL LYRYiWNa5e820u5/oYh/frOsE0r9MKCOe63cmiiwTPff599meRBB/WXWB g==; X-CSE-ConnectionGUID: yCBkHSVLRZWL/0RnmHSdGQ== X-CSE-MsgGUID: NLThgPKBRgqbUWjtKNBTRg== X-IronPort-AV: E=McAfee;i="6600,9927,11063"; a="10714917" X-IronPort-AV: E=Sophos;i="6.07,251,1708416000"; d="scan'208";a="10714917" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2024 06:58:32 -0700 X-CSE-ConnectionGUID: lGv+9Y9fSQWG44V2ocEhWg== X-CSE-MsgGUID: Ag1j0HQXS12B5S5eFSR2Qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,251,1708416000"; d="scan'208";a="50641965" Received: from silpixa00401119.ir.intel.com ([10.55.129.167]) by fmviesa002.fm.intel.com with ESMTP; 03 May 2024 06:58:30 -0700 From: Anatoly Burakov To: dev@dpdk.org Cc: Radoslaw Tyl , bruce.richardson@intel.com, vladimir.medvedkin@intel.com, Skajewski@dpdk.org, PiotrX , Mrozowicz@dpdk.org, SlawomirX , Michael@dpdk.org, Alice Subject: [PATCH v2 07/27] net/ixgbe/base: increase DCB BW calculation for MTU from 4088 to 9128 Date: Fri, 3 May 2024 14:57:38 +0100 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Radoslaw Tyl Change max credit and credit refill to a maximum possible value. Too small values cause the incorrect calculation of the bandwidth limits to each traffic class for frames larger than 4088 bytes. Signed-off-by: Radoslaw Tyl Reviewed-by: Skajewski, PiotrX Tested-by: Skajewski, PiotrX Reviewed-by: Mrozowicz, SlawomirX Reviewed-by: Michael, Alice --- drivers/net/ixgbe/base/ixgbe_dcb.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/base/ixgbe_dcb.h b/drivers/net/ixgbe/base/ixgbe_dcb.h index c2a1013ac0..110ad8e550 100644 --- a/drivers/net/ixgbe/base/ixgbe_dcb.h +++ b/drivers/net/ixgbe/base/ixgbe_dcb.h @@ -10,9 +10,9 @@ /* DCB defines */ /* DCB credit calculation defines */ #define IXGBE_DCB_CREDIT_QUANTUM 64 -#define IXGBE_DCB_MAX_CREDIT_REFILL 200 /* 200 * 64B = 12800B */ +#define IXGBE_DCB_MAX_CREDIT_REFILL 511 /* 0x1FF * 64B = 32704B */ #define IXGBE_DCB_MAX_TSO_SIZE (32 * 1024) /* Max TSO pkt size in DCB*/ -#define IXGBE_DCB_MAX_CREDIT (2 * IXGBE_DCB_MAX_CREDIT_REFILL) +#define IXGBE_DCB_MAX_CREDIT 4095 /* Maximum credit supported: 256KB * 1024 / 64B */ /* 513 for 32KB TSO packet */ #define IXGBE_DCB_MIN_TSO_CREDIT \