ixgbe: fix ethtool stats

In latest changes about 64bit stats on 32bit arches,
[commit 2817273 (net: fix 64 bit counters on 32 bit arches)],
I missed ixgbe uses a bit of magic in its ixgbe_gstrings_stats
definition.

IXGBE_NETDEV_STAT() must now assume offsets relative to
rtnl_link_stats64, not relative do dev->stats.

As a bonus, we also get 64bit stats on ethtool -S

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ixgbe/ixgbe_ethtool.c

@@ -54,42 +54,42 @@ struct ixgbe_stats {
 				sizeof(((struct ixgbe_adapter *)0)->m), \
 				offsetof(struct ixgbe_adapter, m)
 #define IXGBE_NETDEV_STAT(m)	NETDEV_STATS, \
-				sizeof(((struct net_device *)0)->m), \
-				offsetof(struct net_device, m) - offsetof(struct net_device, stats)
+				sizeof(((struct rtnl_link_stats64 *)0)->m), \
+				offsetof(struct rtnl_link_stats64, m)
 
 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
-	{"rx_packets", IXGBE_NETDEV_STAT(stats.rx_packets)},
-	{"tx_packets", IXGBE_NETDEV_STAT(stats.tx_packets)},
-	{"rx_bytes", IXGBE_NETDEV_STAT(stats.rx_bytes)},
-	{"tx_bytes", IXGBE_NETDEV_STAT(stats.tx_bytes)},
+	{"rx_packets", IXGBE_NETDEV_STAT(rx_packets)},
+	{"tx_packets", IXGBE_NETDEV_STAT(tx_packets)},
+	{"rx_bytes", IXGBE_NETDEV_STAT(rx_bytes)},
+	{"tx_bytes", IXGBE_NETDEV_STAT(tx_bytes)},
 	{"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
 	{"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
 	{"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
 	{"tx_bytes_nic", IXGBE_STAT(stats.gotc)},
 	{"lsc_int", IXGBE_STAT(lsc_int)},
 	{"tx_busy", IXGBE_STAT(tx_busy)},
 	{"non_eop_descs", IXGBE_STAT(non_eop_descs)},
-	{"rx_errors", IXGBE_NETDEV_STAT(stats.rx_errors)},
-	{"tx_errors", IXGBE_NETDEV_STAT(stats.tx_errors)},
-	{"rx_dropped", IXGBE_NETDEV_STAT(stats.rx_dropped)},
-	{"tx_dropped", IXGBE_NETDEV_STAT(stats.tx_dropped)},
-	{"multicast", IXGBE_NETDEV_STAT(stats.multicast)},
+	{"rx_errors", IXGBE_NETDEV_STAT(rx_errors)},
+	{"tx_errors", IXGBE_NETDEV_STAT(tx_errors)},
+	{"rx_dropped", IXGBE_NETDEV_STAT(rx_dropped)},
+	{"tx_dropped", IXGBE_NETDEV_STAT(tx_dropped)},
+	{"multicast", IXGBE_NETDEV_STAT(multicast)},
 	{"broadcast", IXGBE_STAT(stats.bprc)},
 	{"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
-	{"collisions", IXGBE_NETDEV_STAT(stats.collisions)},
-	{"rx_over_errors", IXGBE_NETDEV_STAT(stats.rx_over_errors)},
-	{"rx_crc_errors", IXGBE_NETDEV_STAT(stats.rx_crc_errors)},
-	{"rx_frame_errors", IXGBE_NETDEV_STAT(stats.rx_frame_errors)},
+	{"collisions", IXGBE_NETDEV_STAT(collisions)},
+	{"rx_over_errors", IXGBE_NETDEV_STAT(rx_over_errors)},
+	{"rx_crc_errors", IXGBE_NETDEV_STAT(rx_crc_errors)},
+	{"rx_frame_errors", IXGBE_NETDEV_STAT(rx_frame_errors)},
 	{"hw_rsc_aggregated", IXGBE_STAT(rsc_total_count)},
 	{"hw_rsc_flushed", IXGBE_STAT(rsc_total_flush)},
 	{"fdir_match", IXGBE_STAT(stats.fdirmatch)},
 	{"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
-	{"rx_fifo_errors", IXGBE_NETDEV_STAT(stats.rx_fifo_errors)},
-	{"rx_missed_errors", IXGBE_NETDEV_STAT(stats.rx_missed_errors)},
-	{"tx_aborted_errors", IXGBE_NETDEV_STAT(stats.tx_aborted_errors)},
-	{"tx_carrier_errors", IXGBE_NETDEV_STAT(stats.tx_carrier_errors)},
-	{"tx_fifo_errors", IXGBE_NETDEV_STAT(stats.tx_fifo_errors)},
-	{"tx_heartbeat_errors", IXGBE_NETDEV_STAT(stats.tx_heartbeat_errors)},
+	{"rx_fifo_errors", IXGBE_NETDEV_STAT(rx_fifo_errors)},
+	{"rx_missed_errors", IXGBE_NETDEV_STAT(rx_missed_errors)},
+	{"tx_aborted_errors", IXGBE_NETDEV_STAT(tx_aborted_errors)},
+	{"tx_carrier_errors", IXGBE_NETDEV_STAT(tx_carrier_errors)},
+	{"tx_fifo_errors", IXGBE_NETDEV_STAT(tx_fifo_errors)},
+	{"tx_heartbeat_errors", IXGBE_NETDEV_STAT(tx_heartbeat_errors)},
 	{"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
 	{"tx_restart_queue", IXGBE_STAT(restart_queue)},
 	{"rx_long_length_errors", IXGBE_STAT(stats.roc)},