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[70.184.93.199]) by smtp.googlemail.com with ESMTPSA id c90sm18583190pfd.31.2016.01.28.13.28.37 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 28 Jan 2016 13:28:38 -0800 (PST) From: Troy Kisky To: netdev@vger.kernel.org, davem@davemloft.net, B38611@freescale.com Subject: [PATCH net-next 18/40] net: fec: clear cbd_sc after transmission to help with debugging Date: Thu, 28 Jan 2016 14:25:42 -0700 Message-Id: <1454016364-30985-19-git-send-email-troy.kisky@boundarydevices.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1454016364-30985-1-git-send-email-troy.kisky@boundarydevices.com> References: <1454016364-30985-1-git-send-email-troy.kisky@boundarydevices.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160128_132859_802687_AB12B099 X-CRM114-Status: GOOD ( 10.13 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fabio.estevam@freescale.com, andrew@lunn.ch, linux@arm.linux.org.uk, Troy Kisky , laci@boundarydevices.com, l.stach@pengutronix.de, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, tremyfr@gmail.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index fcbbf0d..1759705 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1161,6 +1161,7 @@ static void fec_txq(struct net_device *ndev, struct fec_enet_private *fep, } break; } + bdp->cbd_sc = (bdp == txq->bd.last) ? BD_SC_WRAP : 0; index = fec_enet_get_bd_index(bdp, &txq->bd);