From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Decotigny Subject: [PATCH net-next v4 6/8] forcedeth: account for dropped RX frames Date: Tue, 15 Nov 2011 11:25:39 -0800 Message-ID: <005cae310e19433c9f68c178805f16c774e8dedd.1321384662.git.david.decotigny@google.com> 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: Received: from mail-ww0-f74.google.com ([74.125.82.74]:32794 "EHLO mail-ww0-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757317Ab1KOT0H (ORCPT ); Tue, 15 Nov 2011 14:26:07 -0500 Received: by mail-ww0-f74.google.com with SMTP id 5so146965wwe.1 for ; Tue, 15 Nov 2011 11:26:07 -0800 (PST) In-Reply-To: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org List-ID: This adds the stats counter for dropped RX frames. Signed-off-by: David Decotigny --- drivers/net/ethernet/nvidia/forcedeth.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index ff01d5e..a50c839 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -819,6 +819,7 @@ struct fe_priv { u64 stat_rx_packets; u64 stat_rx_bytes; /* not always available in HW */ u64 stat_rx_missed_errors; + u64 stat_rx_dropped; /* media detection workaround. * Locking: Within irq hander or disable_irq+spin_lock(&np->lock); @@ -1762,6 +1763,7 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage) storage->tx_packets = np->stat_tx_packets; storage->rx_bytes = np->stat_rx_bytes; storage->tx_bytes = np->stat_tx_bytes; + storage->rx_dropped = np->stat_rx_dropped; storage->tx_dropped = np->stat_tx_dropped; storage->rx_missed_errors = np->stat_rx_missed_errors; } while (u64_stats_fetch_retry(&np->swstats_syncp, syncp_start)); @@ -1826,8 +1828,12 @@ 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 { + u64_stats_update_begin(&np->swstats_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_syncp); return 1; + } } return 0; } @@ -1858,8 +1864,12 @@ 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 { + u64_stats_update_begin(&np->swstats_syncp); + np->stat_rx_dropped++; + u64_stats_update_end(&np->swstats_syncp); return 1; + } } return 0; } -- 1.7.3.1