From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9A8E6A0A02; Thu, 14 Jan 2021 10:50:54 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 59A1E14108D; Thu, 14 Jan 2021 10:50:24 +0100 (CET) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by mails.dpdk.org (Postfix) with ESMTP id A11D014108D for ; Thu, 14 Jan 2021 10:50:22 +0100 (CET) IronPort-SDR: OsKVnQj+ueaa3/CTmL7MqOVnbPnuv8z8uW0UsKRjccnAYoOczeu2B4Pz/drRgzVk8HNMpglGl2 a12/xfToIrpQ== X-IronPort-AV: E=McAfee;i="6000,8403,9863"; a="239884029" X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="239884029" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2021 01:50:21 -0800 IronPort-SDR: aBU11LKaD957xP8xsKtiyb1I8pUtsmZg5Vea0IoltTA4bpauC+8LRAwJeFioJDhZHjv6kwjPLG WBJmsVjzmGmQ== X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="572283896" Received: from intel-npg-odc-srv01.cd.intel.com ([10.240.178.136]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2021 01:50:19 -0800 From: Steve Yang To: dev@dpdk.org Cc: jerinj@marvell.com, mczekaj@marvell.com, Steve Yang Date: Thu, 14 Jan 2021 09:47:08 +0000 Message-Id: <20210114094708.14325-1-stevex.yang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201217092312.27033-1-stevex.yang@intel.com> References: <20201217092312.27033-1-stevex.yang@intel.com> Subject: [dpdk-dev] [PATCH v3 15/22] net/thunderx: fix the jumbo frame flag condition for mtu set 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 Sender: "dev" The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition, but the Ether overhead is larger than 18 when it supports dual VLAN tags. That will cause the jumbo flag rx offload is wrong when MTU size is 'RTE_ETHER_MTU'. This fix will change the boundary condition with 'RTE_ETHER_MTU' and overhead, that perhaps impacts the cases of the jumbo frame related. Fixes: 65d9804edc05 ("net/thunderx: support MTU configuration") Signed-off-by: Steve Yang --- drivers/net/thunderx/base/nicvf_hw_defs.h | 1 + drivers/net/thunderx/nicvf_ethdev.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/thunderx/base/nicvf_hw_defs.h b/drivers/net/thunderx/base/nicvf_hw_defs.h index b12c8ec50a..adc8ec943d 100644 --- a/drivers/net/thunderx/base/nicvf_hw_defs.h +++ b/drivers/net/thunderx/base/nicvf_hw_defs.h @@ -176,6 +176,7 @@ #define NIC_HW_MAX_MTU (9190) #define NIC_HW_MAX_FRS (NIC_HW_MAX_MTU + NIC_HW_L2_OVERHEAD) #define NIC_HW_MAX_SEGS (12) +#define NIC_HW_L2_MAX_LEN (RTE_ETHER_MTU + NIC_HW_L2_OVERHEAD) /* Descriptor alignments */ #define NICVF_RBDR_BASE_ALIGN_BYTES (128) /* 7 bits */ diff --git a/drivers/net/thunderx/nicvf_ethdev.c b/drivers/net/thunderx/nicvf_ethdev.c index b6bb05e500..c2e7c334d4 100644 --- a/drivers/net/thunderx/nicvf_ethdev.c +++ b/drivers/net/thunderx/nicvf_ethdev.c @@ -176,7 +176,7 @@ nicvf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) (frame_size + 2 * VLAN_TAG_SIZE > buffsz * NIC_HW_MAX_SEGS)) return -EINVAL; - if (frame_size > RTE_ETHER_MAX_LEN) + if (frame_size > NIC_HW_L2_MAX_LEN) rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else rxmode->offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME; -- 2.17.1