[PATCH] e1000: Fix mulitple queues

Fixed stats when using multiple queues.
When multiple queues are enabled, log a message in syslog.
Fixed memory allocation for multiple queues.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 57 insertions, 8 deletions

diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index fa9a4659369..ffdf76b725b 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -96,8 +96,18 @@ static const struct e1000_stats e1000_gstrings_stats[] = {
 	{ "rx_header_split", E1000_STAT(rx_hdr_split) },
 	{ "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
 };
-#define E1000_STATS_LEN	\
+
+#ifdef CONFIG_E1000_MQ
+#define E1000_QUEUE_STATS_LEN \
+	(((struct e1000_adapter *)netdev->priv)->num_tx_queues + \
+	 ((struct e1000_adapter *)netdev->priv)->num_rx_queues) \
+	* (sizeof(struct e1000_queue_stats) / sizeof(uint64_t))
+#else
+#define E1000_QUEUE_STATS_LEN 0
+#endif
+#define E1000_GLOBAL_STATS_LEN	\
 	sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)
+#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 	"Register test  (offline)", "Eeprom test    (offline)",
 	"Interrupt test (offline)", "Loopback test  (offline)",
@@ -1746,19 +1756,43 @@ e1000_get_ethtool_stats(struct net_device *netdev,
 		struct ethtool_stats *stats, uint64_t *data)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
+#ifdef CONFIG_E1000_MQ
+	uint64_t *queue_stat;
+	int stat_count = sizeof(struct e1000_queue_stats) / sizeof(uint64_t);
+	int j, k;
+#endif
 	int i;
 
 	e1000_update_stats(adapter);
-	for(i = 0; i < E1000_STATS_LEN; i++) {
-		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;	
-		data[i] = (e1000_gstrings_stats[i].sizeof_stat == 
+	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
+		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
 			sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
 	}
+#ifdef CONFIG_E1000_MQ
+	for (j = 0; j < adapter->num_tx_queues; j++) {
+		queue_stat = (uint64_t *)&adapter->tx_ring[j].tx_stats;
+		for (k = 0; k < stat_count; k++)
+			data[i + k] = queue_stat[k];
+		i += k;
+	}
+	for (j = 0; j < adapter->num_rx_queues; j++) {
+		queue_stat = (uint64_t *)&adapter->rx_ring[j].rx_stats;
+		for (k = 0; k < stat_count; k++)
+			data[i + k] = queue_stat[k];
+		i += k;
+	}
+#endif
+/*	BUG_ON(i != E1000_STATS_LEN); */
 }
 
 static void 
 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
 {
+#ifdef CONFIG_E1000_MQ
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+#endif
+	uint8_t *p = data;
 	int i;
 
 	switch(stringset) {
@@ -1767,11 +1801,26 @@ e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
 			E1000_TEST_LEN*ETH_GSTRING_LEN);
 		break;
 	case ETH_SS_STATS:
-		for (i=0; i < E1000_STATS_LEN; i++) {
-			memcpy(data + i * ETH_GSTRING_LEN, 
-			e1000_gstrings_stats[i].stat_string,
-			ETH_GSTRING_LEN);
+		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+			memcpy(p, e1000_gstrings_stats[i].stat_string,
+			       ETH_GSTRING_LEN);
+			p += ETH_GSTRING_LEN;
+		}
+#ifdef CONFIG_E1000_MQ
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			sprintf(p, "tx_queue_%u_packets", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "tx_queue_%u_bytes", i);
+			p += ETH_GSTRING_LEN;
 		}
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			sprintf(p, "rx_queue_%u_packets", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "rx_queue_%u_bytes", i);
+			p += ETH_GSTRING_LEN;
+		}
+#endif
+/*		BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
 		break;
 	}
 }