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 4EC12A0C47; Wed, 27 Oct 2021 11:14:38 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3A85140DDA; Wed, 27 Oct 2021 11:14:38 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by mails.dpdk.org (Postfix) with ESMTP id 4CB544068C for ; Wed, 27 Oct 2021 11:14:36 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10149"; a="290953188" X-IronPort-AV: E=Sophos;i="5.87,186,1631602800"; d="scan'208";a="290953188" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2021 02:14:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,186,1631602800"; d="scan'208";a="497781831" Received: from silpixa00399752.ir.intel.com (HELO silpixa00399752.ger.corp.intel.com) ([10.237.222.27]) by orsmga008.jf.intel.com with ESMTP; 27 Oct 2021 02:14:31 -0700 From: Ferruh Yigit To: "John W. Linville" , Hyong Youb Kim , Andrew Rybchenko , Konstantin Ananyev , Ajit Khaparde , Huisong Li Cc: Ferruh Yigit , dev@dpdk.org Date: Wed, 27 Oct 2021 10:14:28 +0100 Message-Id: <20211027091429.2996153-1-ferruh.yigit@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211026153802.1820636-1-ferruh.yigit@intel.com> References: <20211026153802.1820636-1-ferruh.yigit@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v2 1/2] net/af_packet: fix driver init with default 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" Driver is using 'ETH_FRAME_LEN' Linux defined value as max frame length, which doesn't include FCS (4 bytes CRC). But ethdev by default uses frame size with FCS when application doesn't define any explicit value. As a result device configuration fails because device is tried to be configured with a frame size length that is bigger than what device reported as supported. Device reports as max supported frame size is 1514 but configured value is 1518. Instead use DPDK macro, 'RTE_ETHER_MAX_LEN', that includes FCS in the driver to report the max supported frame size, this matches to the initial intention. Fixes: 1bb4a528c41f ("ethdev: fix max Rx packet length") Reported-by: Andrew Rybchenko Signed-off-by: Ferruh Yigit --- v2: * Remove unnecessary cast --- drivers/net/af_packet/rte_eth_af_packet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c index 559f5a03e509..cea7091c0639 100644 --- a/drivers/net/af_packet/rte_eth_af_packet.c +++ b/drivers/net/af_packet/rte_eth_af_packet.c @@ -342,7 +342,7 @@ eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->if_index = internals->if_index; dev_info->max_mac_addrs = 1; - dev_info->max_rx_pktlen = (uint32_t)ETH_FRAME_LEN; + dev_info->max_rx_pktlen = RTE_ETHER_MAX_LEN; dev_info->max_rx_queues = (uint16_t)internals->nb_queues; dev_info->max_tx_queues = (uint16_t)internals->nb_queues; dev_info->min_rx_bufsize = 0; -- 2.31.1