diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2006-11-01 08:47:59 -0800 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-02 00:12:00 -0500 |
| commit | fcfb1224250d7877b6a6c6a947986e08b2160fb6 (patch) | |
| tree | b87742a5b484dcbba418b055337a7f14b2e272dc /drivers | |
| parent | fc2307d00c15385fbdbb5928a8517e5f63c3d068 (diff) | |
e1000: add queue restart counter
Add a netif_wake/start_queue counter to the ethtool statistics to indicated
to the user that their transmit ring could be too small for their workload.
Signed-off-by: Jesse brandeburg <jesse.brandeburg@intel.com>
Cc: Jamal Hadi <hadi@cyberus.ca>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/e1000/e1000.h | 1 | ||||
| -rw-r--r-- | drivers/net/e1000/e1000_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 5 |
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h index 3f0be02e85e..896ea8a7238 100644 --- a/drivers/net/e1000/e1000.h +++ b/drivers/net/e1000/e1000.h @@ -265,6 +265,7 @@ struct e1000_adapter { /* TX */ struct e1000_tx_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; unsigned long tx_queue_len; uint32_t txd_cmd; uint32_t tx_int_delay; diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c index dbac71ba71b..da459f7177c 100644 --- a/drivers/net/e1000/e1000_ethtool.c +++ b/drivers/net/e1000/e1000_ethtool.c @@ -85,6 +85,7 @@ static const struct e1000_stats e1000_gstrings_stats[] = { { "tx_single_coll_ok", E1000_STAT(stats.scc) }, { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, + { "tx_restart_queue", E1000_STAT(restart_queue) }, { "rx_long_length_errors", E1000_STAT(stats.roc) }, { "rx_short_length_errors", E1000_STAT(stats.ruc) }, { "rx_align_errors", E1000_STAT(stats.algnerrc) }, diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 96e44a82544..705e654c368 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2974,6 +2974,7 @@ static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) /* A reprieve! */ netif_start_queue(netdev); + ++adapter->restart_queue; return 0; } @@ -3654,8 +3655,10 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter, * sees the new next_to_clean. */ smp_mb(); - if (netif_queue_stopped(netdev)) + if (netif_queue_stopped(netdev)) { netif_wake_queue(netdev); + ++adapter->restart_queue; + } } if (adapter->detect_tx_hung) { |