From: Divy Le Ray <[email protected]>
Fix variables initialization and usage in the MAC watchdog.
Signed-off-by: Divy Le Ray <[email protected]>
---
drivers/net/cxgb3/xgmac.c | 31 +++++++++++++++++++++----------
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 *
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 *
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;
-
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