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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 <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde 2009-10-13 01:46:56 +00:00 committed by David S. Miller
parent 231835e416
commit d189a7e858
1 changed files with 22 additions and 5 deletions
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27
drivers/net/ixgb/ixgb_ethtool.c
View File

@ -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;
}