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igb: Fix erroneous display of stats by ethtool -S 

Commit 337e067d 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 <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde 2009-10-13 01:46:29 +00:00 committed by David S. Miller
parent 8328c38fcd
commit 231835e416
1 changed files with 22 additions and 5 deletions
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27
drivers/net/igb/igb_ethtool.c
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@ -37,16 +37,22 @@
#include "igb.h"
enum {NETDEV_STATS, IGB_STATS};
struct igb_stats {
char stat_string[ETH_GSTRING_LEN];
int type;
int sizeof_stat;
int stat_offset;
};
#define IGB_STAT(m) FIELD_SIZEOF(struct igb_adapter, m), \
offsetof(struct igb_adapter, m)
#define IGB_NETDEV_STAT(m) FIELD_SIZEOF(struct net_device, m), \
offsetof(struct net_device, m)
#define IGB_STAT(m) IGB_STATS, \
FIELD_SIZEOF(struct igb_adapter, m), \
offsetof(struct igb_adapter, m)
#define IGB_NETDEV_STAT(m) NETDEV_STATS, \
FIELD_SIZEOF(struct net_device, m), \
offsetof(struct net_device, m)
static const struct igb_stats igb_gstrings_stats[] = {
{ "rx_packets", IGB_STAT(stats.gprc) },
{ "tx_packets", IGB_STAT(stats.gptc) },
@ -1959,10 +1965,21 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
int stat_count_rx = sizeof(struct igb_rx_queue_stats) / sizeof(u64);
int j;
int i;
char *p = NULL;
igb_update_stats(adapter);
for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
char *p = (char *)adapter+igb_gstrings_stats[i].stat_offset;
switch (igb_gstrings_stats[i].type) {
case NETDEV_STATS:
p = (char *) netdev +
igb_gstrings_stats[i].stat_offset;
break;
case IGB_STATS:
p = (char *) adapter +
igb_gstrings_stats[i].stat_offset;
break;
}
data[i] = (igb_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}