commit 986f00003ce9cfdceca2f49068b8d443316501d3
author Michal Simek <monstr@monstr.eu> Wed Oct 17 11:03:40 2012 +0200
committer Michal Simek <michal.simek@xilinx.com> Tue Apr 30 11:39:14 2013 +0200
tree 5b35e5fcfeb4bc63da7795e9db1222935d2afb49
parent 1415107e46460f988e19a5fc59e18f368e72ef19

net: gem: Remove WRAP bit from TX buffer description

Removing this bit causes that frame is sent only once.
(With wrap big one packet has been sent several times
which dramatically decrease throughput)

TRM: (Table 16-3: Tx Buffer Descriptor Entry)

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>

drivers/net/zynq_gem.c

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 3596065..7188b9e 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -310,8 +310,7 @@
 	memset((void *) &(priv->tx_bd), 0, sizeof(struct emac_bd));
 
 	priv->tx_bd.addr = (u32)ptr;
-	priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK |
-						ZYNQ_GEM_TXBUF_WRAP_MASK;
+	priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK;
 
 	/* Start transmit */
 	setbits_le32(&regs->nwctrl, ZYNQ_GEM_NWCTRL_STARTTX_MASK);