[PATCH] skge: increase receive flush threshold default
authorStephen Hemminger <shemminger@osdl.org>
Tue, 16 Aug 2005 21:01:02 +0000 (14:01 -0700)
committerJeff Garzik <jgarzik@pobox.com>
Tue, 16 Aug 2005 21:03:13 +0000 (17:03 -0400)
The flush threshold in the MAC chip should be increased.
Found while reviewing vendor version of sk98lin driver.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
drivers/net/skge.c

index 3990829d3c4693e4ecc0b6505a015554d8fa7af3..38fc66a1e14cd0f19aeaebcec415c8c4d0dbde43 100644 (file)
@@ -1780,7 +1780,12 @@ static void yukon_mac_init(struct skge_hw *hw, int port)
                reg &= ~GMF_RX_F_FL_ON;
        skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
        skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
-       skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
+       /*
+        * because Pause Packet Truncation in GMAC is not working
+        * we have to increase the Flush Threshold to 64 bytes
+        * in order to flush pause packets in Rx FIFO on Yukon-1
+        */
+       skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
 
        /* Configure Tx MAC FIFO */
        skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);