From mboxrd@z Thu Jan 1 00:00:00 1970 From: Troy Kisky Subject: [PATCH net-next V2 10/16] net: fec: clear cbd_sc after transmission to help with debugging Date: Wed, 24 Feb 2016 17:36:53 -0700 Message-ID: <1456360619-24390-11-git-send-email-troy.kisky@boundarydevices.com> References: <1456360619-24390-1-git-send-email-troy.kisky@boundarydevices.com> Cc: fabio.estevam@freescale.com, l.stach@pengutronix.de, andrew@lunn.ch, tremyfr@gmail.com, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org, laci@boundarydevices.com, shawnguo@kernel.org, johannes@sipsolutions.net, stillcompiling@gmail.com, sergei.shtylyov@cogentembedded.com, arnd@arndb.de, Troy Kisky To: netdev@vger.kernel.org, davem@davemloft.net, B38611@freescale.com Return-path: Received: from mail-pf0-f173.google.com ([209.85.192.173]:33407 "EHLO mail-pf0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758855AbcBYAkf (ORCPT ); Wed, 24 Feb 2016 19:40:35 -0500 Received: by mail-pf0-f173.google.com with SMTP id q63so22265655pfb.0 for ; Wed, 24 Feb 2016 16:40:34 -0800 (PST) In-Reply-To: <1456360619-24390-1-git-send-email-troy.kisky@boundarydevices.com> Sender: netdev-owner@vger.kernel.org List-ID: When the tx queue is dumped, it is easier to see that this entry is idle. Signed-off-by: Troy Kisky --- drivers/net/ethernet/freescale/fec_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 1902897..96a0394 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1164,6 +1164,8 @@ static void fec_txq(struct net_device *ndev, struct fec_enet_private *fep, } break; } + bdp->cbd_sc = cpu_to_fec16((bdp == txq->bd.last) ? + BD_SC_WRAP : 0); index = fec_enet_get_bd_index(bdp, &txq->bd); -- 2.5.0