Commit e0f36a95 authored by Ajit Khaparde's avatar Ajit Khaparde Committed by David S. Miller
Browse files

e1000e: Fix erroneous display of stats by ethtool -S 



Commit fd8235bb 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: default avatarAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 29c3a050

drivers/net/e1000e/ethtool.c

+22 −5
Original line number Diff line number Diff line
@@ -35,16 +35,22 @@ 


#include "e1000.h"



enum {NETDEV_STATS, E1000_STATS};



struct e1000_stats {

	char stat_string[ETH_GSTRING_LEN];

	int type;

	int sizeof_stat;

	int stat_offset;

};



#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \

#define E1000_STAT(m)		E1000_STATS, \

				sizeof(((struct e1000_adapter *)0)->m), \

		      		offsetof(struct e1000_adapter, m)

#define E1000_NETDEV_STAT(m) sizeof(((struct net_device *)0)->m), \

#define E1000_NETDEV_STAT(m)	NETDEV_STATS, \

				sizeof(((struct net_device *)0)->m), \

				offsetof(struct net_device, m)



static const struct e1000_stats e1000_gstrings_stats[] = {

	{ "rx_packets", E1000_STAT(stats.gprc) },

	{ "tx_packets", E1000_STAT(stats.gptc) },
@@ -1906,10 +1912,21 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, 
{

	struct e1000_adapter *adapter = netdev_priv(netdev);

	int i;

	char *p = NULL;



	e1000e_update_stats(adapter);

	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {

		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;

		switch (e1000_gstrings_stats[i].type) {

		case NETDEV_STATS:

			p = (char *) netdev +

					e1000_gstrings_stats[i].stat_offset;

			break;

		case E1000_STATS:

			p = (char *) adapter +

					e1000_gstrings_stats[i].stat_offset;

			break;

		}



		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==

			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;

	}