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 C51D1A0A03; Mon, 18 Jan 2021 08:10:57 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 07CF2140DED; Mon, 18 Jan 2021 08:09:13 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mails.dpdk.org (Postfix) with ESMTP id 9024A140CD9 for ; Mon, 18 Jan 2021 08:09:08 +0100 (CET) IronPort-SDR: qFsdaUKHtcAumrqkUGu46Ew+KWimdTp5nOBvjNGByjGjzCrdpF5Owz8gVWabDkm8rULWxE58FK eB2CVa6GEicQ== X-IronPort-AV: E=McAfee;i="6000,8403,9867"; a="197460259" X-IronPort-AV: E=Sophos;i="5.79,355,1602572400"; d="scan'208";a="197460259" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jan 2021 23:08:57 -0800 IronPort-SDR: sscN14S9io0mcZHhGIGOE6NTf8e5yF2RXbO56K9S17G+WT532lONhi7gupbz6DHT959F95VUC8 IVz2JR2/QCUQ== X-IronPort-AV: E=Sophos;i="5.79,355,1602572400"; d="scan'208";a="355087042" Received: from intel-npg-odc-srv01.cd.intel.com ([10.240.178.136]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jan 2021 23:08:55 -0800 From: Steve Yang To: dev@dpdk.org Cc: Steve Yang , Shijith Thotton , Srisivasubramanian Srinivasan Date: Mon, 18 Jan 2021 07:04:28 +0000 Message-Id: <20210118070428.36998-23-stevex.yang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210118070428.36998-1-stevex.yang@intel.com> References: <20210114094537.13661-1-stevex.yang@intel.com> <20210118070428.36998-1-stevex.yang@intel.com> Subject: [dpdk-dev] [PATCH v4 22/22] net/liquidio: 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. If the Ether overhead is larger than 18 when it supports VLAN tag, that will cause the jumbo flag rx offload is wrong when MTU size is 'RTE_ETHER_MTU'. This fix will normalize the boundary condition with 'RTE_ETHER_MTU' and overhead even though current overhead is 18. Fixes: 9f1c00266d82 ("net/liquidio: add API to set MTU") Cc: Shijith Thotton Cc: Srisivasubramanian Srinivasan Signed-off-by: Steve Yang --- drivers/net/liquidio/lio_ethdev.c | 2 +- drivers/net/liquidio/lio_ethdev.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/liquidio/lio_ethdev.c b/drivers/net/liquidio/lio_ethdev.c index d4dd3768cd..eb0fdab45a 100644 --- a/drivers/net/liquidio/lio_ethdev.c +++ b/drivers/net/liquidio/lio_ethdev.c @@ -481,7 +481,7 @@ lio_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu) return -1; } - if (frame_len > RTE_ETHER_MAX_LEN) + if (frame_len > LIO_ETH_MAX_LEN) eth_dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else diff --git a/drivers/net/liquidio/lio_ethdev.h b/drivers/net/liquidio/lio_ethdev.h index 74cd2fb6c6..d33be1c44d 100644 --- a/drivers/net/liquidio/lio_ethdev.h +++ b/drivers/net/liquidio/lio_ethdev.h @@ -13,6 +13,9 @@ #define LIO_LSC_TIMEOUT 100000 /* 100000us (100ms) */ #define LIO_MAX_CMD_TIMEOUT 10000 /* 10000ms (10s) */ +/* The max frame size with default MTU */ +#define LIO_ETH_MAX_LEN (RTE_ETHER_MTU + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN) + #define LIO_DEV(_eth_dev) ((_eth_dev)->data->dev_private) /* LIO Response condition variable */ -- 2.17.1