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 C51E8A0A02; Thu, 14 Jan 2021 10:50:27 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 48C5E141078; Thu, 14 Jan 2021 10:50:06 +0100 (CET) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id BCEFF14104B for ; Thu, 14 Jan 2021 10:50:04 +0100 (CET) IronPort-SDR: WwAsNkXN12fzNHSys3qKqwcuQOO7aSzw2s5lNPeBGQWpHxpHjaaGvsPyq9Zu46o6OJhQuCACVw fgUXvuXZD3TA== X-IronPort-AV: E=McAfee;i="6000,8403,9863"; a="177560035" X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="177560035" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2021 01:50:03 -0800 IronPort-SDR: jvK5/GCn0auWYndY/eONDZpMwH/3QOC5p+MwbyQYoVqhBpfwj1X+VPcgseATlu/vy5pOrzYgL4 wtd/mH/i3Xsw== X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="572283839" 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 01:50:02 -0800 From: Steve Yang To: dev@dpdk.org Cc: jerinj@marvell.com, ndabilpuram@marvell.com, kirankumark@marvell.com, Steve Yang Date: Thu, 14 Jan 2021 09:46:51 +0000 Message-Id: <20210114094651.14184-1-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 12/22] net/octeontx2: fix the jumbo frame flag condition for mtu 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: 0e2efd02db58 ("net/octeontx2: add MTU set operation") Acked-by: Nithin Dabilpuram Signed-off-by: Steve Yang --- drivers/net/octeontx2/otx2_ethdev.h | 2 ++ drivers/net/octeontx2/otx2_ethdev_ops.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/octeontx2/otx2_ethdev.h b/drivers/net/octeontx2/otx2_ethdev.h index 3b9871f4dc..99f0469d89 100644 --- a/drivers/net/octeontx2/otx2_ethdev.h +++ b/drivers/net/octeontx2/otx2_ethdev.h @@ -51,6 +51,8 @@ /* ETH_HLEN+ETH_FCS+2*VLAN_HLEN */ #define NIX_L2_OVERHEAD \ (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + 8) +#define NIX_L2_MAX_LEN \ + (RTE_ETHER_MTU + NIX_L2_OVERHEAD) /* HW config of frame size doesn't include FCS */ #define NIX_MAX_HW_FRS 9212 diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c index b36d37b9f7..963cc285ed 100644 --- a/drivers/net/octeontx2/otx2_ethdev_ops.c +++ b/drivers/net/octeontx2/otx2_ethdev_ops.c @@ -58,7 +58,7 @@ otx2_nix_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu) if (rc) return rc; - if (frame_size > RTE_ETHER_MAX_LEN) + if (frame_size > NIX_L2_MAX_LEN) dev->rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else dev->rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME; -- 2.17.1