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Commit 6e532cfe authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Jeff Garzik
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[PATCH] sky2: set lower pause threshold to prevent overrun 



Adjust the pause threshold on slower systems to keep from getting overrun.
Since FIFO is 2K bytes, don't send XON pause until there is space for a full
frame.

Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 7bd656d1

drivers/net/sky2.c

+1 −1
Original line number Diff line number Diff line
@@ -683,7 +683,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) 
	sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);



	if (hw->chip_id == CHIP_ID_YUKON_EC_U) {

		sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);

		sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 512/8);

		sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);

		if (hw->dev[port]->mtu > ETH_DATA_LEN) {

			/* set Tx GMAC FIFO Almost Empty Threshold */