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[PATCH] skge: handle Tx/Rx arbiter timeout 

Need to handle receive and transmit packet arbiter timeouts.
Transmit arbiter timeouts happens when Gigabit sends to 100Mbit port
on same switch and pause occurs.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
This commit is contained in:
Stephen Hemminger 2005-06-27 11:33:14 -07:00 committed by Jeff Garzik
parent 7e676d9136
commit d25f5a6774
2 changed files with 23 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/net/skge.c
View File

@ -2731,6 +2731,24 @@ static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
if (status & IS_XA2_F)
skge_tx_intr(hw->dev[1]);
if (status & IS_PA_TO_RX1) {
struct skge_port *skge = netdev_priv(hw->dev[0]);
++skge->net_stats.rx_over_errors;
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
}
if (status & IS_PA_TO_RX2) {
struct skge_port *skge = netdev_priv(hw->dev[1]);
++skge->net_stats.rx_over_errors;
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
}
if (status & IS_PA_TO_TX1)
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
if (status & IS_PA_TO_TX2)
skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
if (status & IS_MAC1)
skge_mac_intr(hw, 0);

7
drivers/net/skge.h
View File

@ -203,8 +203,11 @@ enum {
IS_XA2_F = 1<<1, /* Q_XA2 End of Frame */
IS_XA2_C = 1<<0, /* Q_XA2 Encoding Error */
IS_PORT_1 = IS_XA1_F| IS_R1_F| IS_MAC1,
IS_PORT_2 = IS_XA2_F| IS_R2_F| IS_MAC2,
IS_TO_PORT1 = IS_PA_TO_RX1 | IS_PA_TO_TX1,
IS_TO_PORT2 = IS_PA_TO_RX2 | IS_PA_TO_TX2,
IS_PORT_1 = IS_XA1_F| IS_R1_F | IS_TO_PORT1 | IS_MAC1,
IS_PORT_2 = IS_XA2_F| IS_R2_F | IS_TO_PORT2 | IS_MAC2,
};