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[PATCH] sky2: set lower pause threshold to prevent overrun
author
Stephen Hemminger
<shemminger@osdl.org>
Mon, 9 Oct 2006 22:49:27 +0000
(15:49 -0700)
committer
Jeff Garzik
<jeff@garzik.org>
Wed, 11 Oct 2006 08:07:45 +0000
(
04:07
-0400)
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: Jeff Garzik <jeff@garzik.org>
drivers/net/sky2.c
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diff --git
a/drivers/net/sky2.c
b/drivers/net/sky2.c
index
1f91f30
..
c10e7f5
100644
(file)
--- a/
drivers/net/sky2.c
+++ b/
drivers/net/sky2.c
@@
-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 */