[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>
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 290d6aa..9f24714 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2731,6 +2731,24 @@
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);
diff --git a/drivers/net/skge.h b/drivers/net/skge.h
index ba6dfd2..37323cd 100644
--- a/drivers/net/skge.h
+++ b/drivers/net/skge.h
@@ -203,8 +203,11 @@
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,
};