From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Decotigny Subject: [PATCH net-next v3 7/9] forcedeth: new ethtool stat counter for TX timeouts Date: Mon, 14 Nov 2011 16:11:17 -0800 Message-ID: References: Cc: "David S. Miller" , Ian Campbell , Eric Dumazet , Jeff Kirsher , Ben Hutchings , Jiri Pirko , Joe Perches , Szymon Janc , Richard Jones , Ayaz Abdulla , David Decotigny To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: In-Reply-To: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org 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 --- 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 84e8d17..dd24035 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; /* should be ifconfig->rx_packets */ u64 rx_errors_total; u64 tx_errors_total; + u64 tx_timeout; /* version 2 stats */ u64 tx_deferral; @@ -852,6 +854,7 @@ struct fe_priv { struct nv_driver_stat stat_tx_packets; /* not always available in HW */ struct nv_driver_stat stat_tx_bytes; 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; @@ -1746,6 +1749,7 @@ static void nv_update_stats(struct net_device *dev) NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_packets); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_bytes); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_dropped); + np->estats.tx_timeout += atomic_xchg(&np->stat_tx_timeout, 0); } /* @@ -2639,6 +2643,8 @@ 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