From d189a7e85835dbfb22b1d04eb7f3ab575ccacb96 Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Tue, 13 Oct 2009 01:46:56 +0000 Subject: [PATCH] ixgb: Fix erroneous display of stats by ethtool -S 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 Signed-off-by: David S. Miller --- drivers/net/ixgb/ixgb_ethtool.c | 27 ++++++++++++++++++++++----- 1 file 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; } -- 2.7.4