From patchwork Tue Mar 28 03:49:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 22485 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 1D609D2C2; Tue, 28 Mar 2017 05:50:21 +0200 (CEST) Received: from rnd-relay.smtp.broadcom.com (lpdvrndsmtp01.broadcom.com [192.19.229.170]) by dpdk.org (Postfix) with ESMTP id 13EF02C1A for ; Tue, 28 Mar 2017 05:49:23 +0200 (CEST) Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.224.233]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id 1D04030CD18 for ; Mon, 27 Mar 2017 20:49:22 -0700 (PDT) Received: from C02PT1RBG8WP.vpn.broadcom.net (unknown [10.10.115.230]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id B07E481E9C for ; Mon, 27 Mar 2017 20:49:21 -0700 (PDT) From: Ajit Khaparde To: dev@dpdk.org Date: Mon, 27 Mar 2017 22:49:01 -0500 Message-Id: <20170328034903.41482-27-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170328034903.41482-1-ajit.khaparde@broadcom.com> References: <20170328034903.41482-1-ajit.khaparde@broadcom.com> Subject: [dpdk-dev] [PATCH 26/28] bnxt: use only long BDs in Tx path X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" Devices before Cu+B1 cannot mix long and short buffer descriptors. Use the long BD in all cases. Signed-off-by: Ajit Khaparde --- drivers/net/bnxt/bnxt_txr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/bnxt/bnxt_txr.c b/drivers/net/bnxt/bnxt_txr.c index 6870b16..6222f62 100644 --- a/drivers/net/bnxt/bnxt_txr.c +++ b/drivers/net/bnxt/bnxt_txr.c @@ -159,6 +159,10 @@ static uint16_t bnxt_start_xmit(struct rte_mbuf *tx_pkt, TX_BD_LONG_FLAGS_LHINT_LT2K }; + /* Devices before Cu+B1 need to avoid mixing long and short BDs + * Revisit this fix once Cu+B1 is available. + */ + long_bd = true; if (tx_pkt->ol_flags & (PKT_TX_TCP_SEG | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM | PKT_TX_VLAN_PKT))