From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ajit Khaparde Subject: [PATCH 26/28] bnxt: use only long BDs in Tx path Date: Mon, 27 Mar 2017 22:49:01 -0500 Message-ID: <20170328034903.41482-27-ajit.khaparde@broadcom.com> References: <20170328034903.41482-1-ajit.khaparde@broadcom.com> To: dev@dpdk.org Return-path: 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) In-Reply-To: <20170328034903.41482-1-ajit.khaparde@broadcom.com> 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)) -- 2.10.1 (Apple Git-78)