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Commit d25f5a67 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Jeff Garzik
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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: default avatarStephen Hemminger <shemminger@osdl.org>
parent 7e676d91

drivers/net/skge.c

+18 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/skge.h

+5 −2
Original line number Diff line number Diff line
@@ -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,

};