From: "Kok, Auke" <auke-jan.h.kok@intel.com>
To: "Garzik, Jeff" <jgarzik@pobox.com>
Cc: netdev@vger.kernel.org, "Brandeburg,
Jesse" <jesse.brandeburg@intel.com>,
"Kok, Auke <auke-jan.h.kok"@intel.com, "Kok,
Auke" <auke@foo-projects.org>
Subject: [PATCH 8/9] ixgb: add tx timeout counter
Date: Tue, 23 May 2006 11:04:20 -0700 [thread overview]
Message-ID: <20060523180420.17428.17568.stgit@gitlost.site> (raw)
In-Reply-To: <20060523180302.17428.89125.stgit@gitlost.site>
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>
---
drivers/net/ixgb/ixgb.h | 1 +
drivers/net/ixgb/ixgb_ethtool.c | 1 +
drivers/net/ixgb/ixgb_main.c | 29 +++++++++++++++++++++++++----
3 files changed, 27 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ixgb/ixgb.h b/drivers/net/ixgb/ixgb.h
index a687f12..b9c37fd 100644
--- a/drivers/net/ixgb/ixgb.h
+++ b/drivers/net/ixgb/ixgb.h
@@ -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;
diff --git a/drivers/net/ixgb/ixgb_ethtool.c b/drivers/net/ixgb/ixgb_ethtool.c
index 560b4b6..6d8192f 100644
--- a/drivers/net/ixgb/ixgb_ethtool.c
+++ b/drivers/net/ixgb/ixgb_ethtool.c
@@ -78,6 +78,7 @@ static struct ixgb_stats ixgb_gstrings_s
{"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
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 4115bf3..da0b919 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -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 *
{
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 *a
/* 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;
--
Auke Kok <auke-jan.h.kok@intel.com>
next prev parent reply other threads:[~2006-05-23 17:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 18:03 [PATCH 0/9] ixgb: driver update to 1.0.104-k2 Kok, Auke
2006-05-23 18:04 ` [PATCH 1/9] ixgb: fix rare early tso completion Kok, Auke
2006-05-23 18:04 ` [PATCH 2/9] ixgb: remove duplicate code setting duplex and speed Kok, Auke
2006-05-23 18:04 ` [PATCH 3/9] ixgb: fix flow control Kok, Auke
2006-05-23 18:04 ` [PATCH 4/9] ixgb: add NETIF_F_LLTX analogous to e1000 Kok, Auke
2006-05-23 18:04 ` [PATCH 5/9] ixgb: add copper 10gig driver id Kok, Auke
2006-05-23 18:04 ` [PATCH 6/9] ixgb: remove hardcoded number Kok, Auke
2006-05-23 18:04 ` [PATCH 7/9] ixgb: use DPRINTK and msglvl, and ethtool to control it Kok, Auke
2006-05-23 18:04 ` Kok, Auke [this message]
2006-05-23 18:04 ` [PATCH 9/9] ixgb: increment version to 1.0.104-k2 Kok, Auke
2006-05-23 18:42 ` [PATCH 0/9] ixgb: driver update " Jeff Garzik
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