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authorDivy Le Ray <divy@chelsio.com>2007-05-30 10:01:50 -0700
committerJeff Garzik <jeff@garzik.org>2007-06-20 19:16:59 -0400
commit2090dee420911045258d50239dc2c527e4b1dd06 (patch)
tree5b7f0c7cddca53ae8710df8cf4fae84f49f61948 /drivers/net/cxgb3
parent7b581a0fa85464f7f765b9a66f612e7ec4ab17f9 (diff)
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cxgb3 - MAC watchdog update
Fix variables initialization and usage in the MAC watchdog. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/cxgb3')
-rw-r--r--drivers/net/cxgb3/xgmac.c31
1 files changed, 21 insertions, 10 deletions
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 16cadba..b261be1 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -501,6 +501,10 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
unsigned int rx_xcnt;
int status;
+ status = 0;
+ tx_xcnt = 1; /* By default tx_xcnt is making progress */
+ tx_tcnt = mac->tx_tcnt; /* If tx_mcnt is progressing ignore tx_tcnt */
+ rx_xcnt = 1; /* By default rx_xcnt is making progress */
if (tx_mcnt == mac->tx_mcnt) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_TX_SPI4_SOP_EOP_CNT +
@@ -511,37 +515,44 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap,
A_TP_PIO_DATA)));
} else {
- mac->toggle_cnt = 0;
- return 0;
+ goto rxcheck;
}
} else {
mac->toggle_cnt = 0;
- return 0;
+ goto rxcheck;
}
if (((tx_tcnt != mac->tx_tcnt) &&
(tx_xcnt == 0) && (mac->tx_xcnt == 0)) ||
((mac->tx_mcnt == tx_mcnt) &&
(tx_xcnt != 0) && (mac->tx_xcnt != 0))) {
- if (mac->toggle_cnt > 4)
+ if (mac->toggle_cnt > 4) {
status = 2;
- else
+ goto out;
+ } else {
status = 1;
+ goto out;
+ }
} else {
mac->toggle_cnt = 0;
- return 0;
+ goto rxcheck;
}
+rxcheck:
if (rx_mcnt != mac->rx_mcnt)
rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
mac->offset)));
- else
- return 0;
+ else
+ goto out;
- if (mac->rx_mcnt != s->rx_frames && rx_xcnt == 0 && mac->rx_xcnt == 0)
+ if (mac->rx_mcnt != s->rx_frames && rx_xcnt == 0 &&
+ mac->rx_xcnt == 0) {
status = 2;
-
+ goto out;
+ }
+
+out:
mac->tx_tcnt = tx_tcnt;
mac->tx_xcnt = tx_xcnt;
mac->tx_mcnt = s->tx_frames;