From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756904Ab1KOAMA (ORCPT ); Mon, 14 Nov 2011 19:12:00 -0500 Received: from mail-ww0-f74.google.com ([74.125.82.74]:62178 "EHLO mail-ww0-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756811Ab1KOAL6 (ORCPT ); Mon, 14 Nov 2011 19:11:58 -0500 From: David Decotigny To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: "David S. Miller" , Ian Campbell , Eric Dumazet , Jeff Kirsher , Ben Hutchings , Jiri Pirko , Joe Perches , Szymon Janc , Richard Jones , Ayaz Abdulla , David Decotigny Subject: [PATCH net-next v3 6/9] forcedeth: account for dropped RX frames Date: Mon, 14 Nov 2011 16:11:16 -0800 Message-Id: <5f53bf68b155c8b8c5c045a5af6bdba414a9f11e.1321313729.git.david.decotigny@google.com> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: References: In-Reply-To: References: Organization: Google, Inc. X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds 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 a67c1f4..84e8d17 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); @@ -1740,6 +1741,7 @@ static void nv_update_stats(struct net_device *dev) 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_missed_errors); + NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_rx_dropped); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_packets); NV_DRIVER_STAT_UPDATE_TOTAL(&np->stat_tx_bytes); @@ -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