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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>
This commit is contained in:
Divy Le Ray 2007-05-30 10:01:50 -07:00 committed by Jeff Garzik
parent 7b581a0fa8
commit 2090dee420
1 changed files with 21 additions and 10 deletions
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27
drivers/net/cxgb3/xgmac.c
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@ -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;
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;