From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ajit Khaparde Subject: [PATCH net-next-2.6] ixgb: Fix erroneous display of stats by ethtool -S Date: Tue, 13 Oct 2009 17:16:56 +0530 Message-ID: <20091013114645.GA2453@serverengines.com> Reply-To: Ajit Khaparde Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: David Miller , netdev , "Duyck, Alexander H" , "Tantilov, Emil S" , "Kirsher, Jef Return-path: Received: from segment-124-30.sify.net ([124.30.166.146]:60548 "EHLO akhaparde.serverengines.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1759545AbZJMLrh (ORCPT ); Tue, 13 Oct 2009 07:47:37 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Commit 5675f221 overlooked the way offsets for netdev stats were considered. Because of this some of the stats shown by ethtool -S were wrong. This patch fixes it. Signed-off-by: Ajit Khaparde --- drivers/net/ixgb/ixgb_ethtool.c | 27 ++++++++++++++++++++++----- 1 files changed, 22 insertions(+), 5 deletions(-) diff --git a/drivers/net/ixgb/ixgb_ethtool.c b/drivers/net/ixgb/ixgb_ethtool.c index deeb25d..a4ed96c 100644 --- a/drivers/net/ixgb/ixgb_ethtool.c +++ b/drivers/net/ixgb/ixgb_ethtool.c @@ -34,16 +34,22 @@ #define IXGB_ALL_RAR_ENTRIES 16 +enum {NETDEV_STATS, IXGB_STATS}; + struct ixgb_stats { char stat_string[ETH_GSTRING_LEN]; + int type; int sizeof_stat; int stat_offset; }; -#define IXGB_STAT(m) FIELD_SIZEOF(struct ixgb_adapter, m), \ - offsetof(struct ixgb_adapter, m) -#define IXGB_NETDEV_STAT(m) FIELD_SIZEOF(struct net_device, m), \ - offsetof(struct net_device, m) +#define IXGB_STAT(m) IXGB_STATS, \ + FIELD_SIZEOF(struct ixgb_adapter, m), \ + offsetof(struct ixgb_adapter, m) +#define IXGB_NETDEV_STAT(m) NETDEV_STATS, \ + FIELD_SIZEOF(struct net_device, m), \ + offsetof(struct net_device, m) + static struct ixgb_stats ixgb_gstrings_stats[] = { {"rx_packets", IXGB_NETDEV_STAT(stats.rx_packets)}, {"tx_packets", IXGB_NETDEV_STAT(stats.tx_packets)}, @@ -664,10 +670,21 @@ ixgb_get_ethtool_stats(struct net_device *netdev, { struct ixgb_adapter *adapter = netdev_priv(netdev); int i; + char *p = NULL; ixgb_update_stats(adapter); for (i = 0; i < IXGB_STATS_LEN; i++) { - char *p = (char *)adapter+ixgb_gstrings_stats[i].stat_offset; + switch (ixgb_gstrings_stats[i].type) { + case NETDEV_STATS: + p = (char *) netdev + + ixgb_gstrings_stats[i].stat_offset; + break; + case IXGB_STATS: + p = (char *) adapter + + ixgb_gstrings_stats[i].stat_offset; + break; + } + data[i] = (ixgb_gstrings_stats[i].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } -- 1.6.0.4