Messages in this thread Patch in this message | | | From | David Decotigny <> | Subject | [PATCH net-next v1 7/9] forcedeth: new ethtool stat counter for TX timeouts | Date | Wed, 9 Nov 2011 14:09:21 -0800 |
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From: Sameer Nanda <snanda@google.com>
This change publishes a new ethtool stats: tx_timeout that counts the number of times the tx_timeout callback was triggered.
Signed-off-by: David Decotigny <david.decotigny@google.com> --- drivers/net/ethernet/nvidia/forcedeth.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 85e34b6c..6a6604a 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -633,6 +633,7 @@ static const struct nv_ethtool_str nv_estats_str[] = { { "rx_packets" }, { "rx_errors_total" }, { "tx_errors_total" }, + { "tx_timeout" }, /* version 2 stats */ { "tx_deferral" }, @@ -673,6 +674,7 @@ struct nv_ethtool_stats { u64 rx_packets; u64 rx_errors_total; u64 tx_errors_total; + u64 tx_timeout; /* version 2 stats */ u64 tx_deferral; @@ -842,6 +844,7 @@ struct fe_priv { struct nv_skb_map *tx_end_flip; int tx_stop; struct nv_driver_stat stat_tx_dropped; + atomic_t stat_tx_timeout; /* TX timeouts since last nv_update_stats */ /* msi/msi-x fields */ u32 msi_flags; @@ -1728,6 +1731,7 @@ static void nv_update_stats(struct net_device *dev) } /* update software stats */ + np->estats.tx_timeout += atomic_xchg(&np->stat_tx_timeout, 0); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_dropped); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_dropped); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_missed_errors); @@ -2590,6 +2594,8 @@ static void nv_tx_timeout(struct net_device *dev) } } + atomic_inc(&np->stat_tx_timeout); + spin_lock_irq(&np->lock); /* 1) stop tx engine */ -- 1.7.3.1
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