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ixgb: add tx timeout counter 

This adds a TX timeout counter to the ethtool stats, a tx timeout
debug message, and sets the timer to 5 seconds.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
This commit is contained in:
Auke Kok 2006-05-23 10:35:04 -07:00 committed by Auke Kok
parent ec9c3f5d3b
commit 9b8118df48
3 changed files with 27 additions and 4 deletions
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1
drivers/net/ixgb/ixgb.h
View File

@ -180,6 +180,7 @@ struct ixgb_adapter {
uint64_t hw_csum_tx_good;
uint64_t hw_csum_tx_error;
uint32_t tx_int_delay;
uint32_t tx_timeout_count;
boolean_t tx_int_delay_enable;
boolean_t detect_tx_hung;

1
drivers/net/ixgb/ixgb_ethtool.c
View File

@ -78,6 +78,7 @@ static struct ixgb_stats ixgb_gstrings_stats[] = {
{"tx_heartbeat_errors", IXGB_STAT(net_stats.tx_heartbeat_errors)},
{"tx_window_errors", IXGB_STAT(net_stats.tx_window_errors)},
{"tx_deferred_ok", IXGB_STAT(stats.dc)},
{"tx_timeout_count", IXGB_STAT(tx_timeout_count) },
{"rx_long_length_errors", IXGB_STAT(stats.roc)},
{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
#ifdef NETIF_F_TSO

29
drivers/net/ixgb/ixgb_main.c
View File

@ -428,7 +428,7 @@ ixgb_probe(struct pci_dev *pdev,
netdev->change_mtu = &ixgb_change_mtu;
ixgb_set_ethtool_ops(netdev);
netdev->tx_timeout = &ixgb_tx_timeout;
netdev->watchdog_timeo = HZ;
netdev->watchdog_timeo = 5 * HZ;
#ifdef CONFIG_IXGB_NAPI
netdev->poll = &ixgb_clean;
netdev->weight = 64;
@ -1509,6 +1509,7 @@ ixgb_tx_timeout_task(struct net_device *netdev)
{
struct ixgb_adapter *adapter = netdev_priv(netdev);
adapter->tx_timeout_count++;
ixgb_down(adapter, TRUE);
ixgb_up(adapter);
}
@ -1838,11 +1839,31 @@ ixgb_clean_tx_irq(struct ixgb_adapter *adapter)
/* detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
adapter->detect_tx_hung = FALSE;
if(tx_ring->buffer_info[i].dma &&
time_after(jiffies, tx_ring->buffer_info[i].time_stamp + HZ)
if (tx_ring->buffer_info[eop].dma &&
time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + HZ)
&& !(IXGB_READ_REG(&adapter->hw, STATUS) &
IXGB_STATUS_TXOFF))
IXGB_STATUS_TXOFF)) {
/* detected Tx unit hang */
DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n"
" TDH <%x>\n"
" TDT <%x>\n"
" next_to_use <%x>\n"
" next_to_clean <%x>\n"
"buffer_info[next_to_clean]\n"
" time_stamp <%lx>\n"
" next_to_watch <%x>\n"
" jiffies <%lx>\n"
" next_to_watch.status <%x>\n",
IXGB_READ_REG(&adapter->hw, TDH),
IXGB_READ_REG(&adapter->hw, TDT),
tx_ring->next_to_use,
tx_ring->next_to_clean,
tx_ring->buffer_info[eop].time_stamp,
eop,
jiffies,
eop_desc->status);
netif_stop_queue(netdev);
}
}
return cleaned;