From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Decotigny Subject: [PATCH net-next v5 08/10] forcedeth: account for dropped RX frames Date: Tue, 15 Nov 2011 21:15:56 -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 adds code to update the stats counter for dropped RX frames. Signed-off-by: David Decotigny --- drivers/net/ethernet/nvidia/forcedeth.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 6aeb0d6..d9b5a4d 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -824,6 +824,7 @@ struct fe_priv { struct nv_driver_stat stat_rx_packets; struct nv_driver_stat stat_rx_bytes; /* not always available in HW */ struct nv_driver_stat stat_rx_missed_errors; + struct nv_driver_stat stat_rx_dropped; /* media detection workaround. * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); @@ -1739,6 +1740,7 @@ static void nv_update_stats(struct net_device *dev) /* update software stats */ NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_packets); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_bytes); + NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_dropped); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_missed_errors); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_packets); @@ -1786,6 +1788,8 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) &np->stat_tx_bytes); storage->rx_errors = np->estats.rx_errors_total; storage->tx_errors = np->estats.tx_errors_total; + storage->rx_dropped = NV_DRIVER_STAT_GET_TOTAL( + &np->stat_rx_dropped); storage->tx_dropped = NV_DRIVER_STAT_GET_TOTAL( &np->stat_tx_dropped); @@ -1841,8 +1845,10 @@ static int nv_alloc_rx(struct net_device *dev) np->put_rx.orig = np->first_rx.orig; if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) np->put_rx_ctx = np->first_rx_ctx; - } else + } else { + NV_DRIVER_STAT_ATOMIC_INC(&np->stat_rx_dropped); return 1; + } } return 0; } @@ -1873,8 +1879,10 @@ static int nv_alloc_rx_optimized(struct net_device *dev) np->put_rx.ex = np->first_rx.ex; if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx)) np->put_rx_ctx = np->first_rx_ctx; - } else + } else { + NV_DRIVER_STAT_ATOMIC_INC(&np->stat_rx_dropped); return 1; + } } return 0; } -- 1.7.3.1