stmmac: Enable unicast pause frame detect in GMAC Register 6

Unicast pause frame detect was not being enabled for the Synopsys stmmac. This
patch sets Unicast pause frame detect in MAC register 6 so that pause frame
detection by the stmmac conforms to IEEE 802.3, Annex 31B.3.3 Receive
Operation - Specifically, a MAC shall respond to pause frames containing
either the reserved multicast address or the unique physical address
associated with this station.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vince Bridgers 2015-04-15 11:17:41 -05:00 committed by David S. Miller
parent e7877f52fd
commit 545d655ebb
1 changed files with 4 additions and 1 deletions

View File

@ -201,7 +201,10 @@ static void dwmac1000_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
unsigned int fc, unsigned int pause_time)
{
void __iomem *ioaddr = hw->pcsr;
unsigned int flow = 0;
/* Set flow such that DZPQ in Mac Register 6 is 0,
* and unicast pause detect is enabled.
*/
unsigned int flow = GMAC_FLOW_CTRL_UP;
pr_debug("GMAC Flow-Control:\n");
if (fc & FLOW_RX) {