[PATCH net-next v3 4/5] ionic: Report rx_bits_phy stat to ethtool

[Eric Joyner <eric.joyner@amd.com>]

This stat contains the number of total bits that the PHY has received;
it's useful for BER calculations. Add it to the ethtool stats output.

Signed-off-by: Eric Joyner <eric.joyner@amd.com>
---
 drivers/net/ethernet/pensando/ionic/ionic_stats.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_stats.c b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
index 0107599a9dd4..c45ed0db0582 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_stats.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
@@ -167,6 +167,7 @@ static const struct ionic_stat_desc ionic_rx_stats_desc[] = {
 #define IONIC_NUM_PORT_STATS ARRAY_SIZE(ionic_port_stats_desc)
 #define IONIC_NUM_TX_STATS ARRAY_SIZE(ionic_tx_stats_desc)
 #define IONIC_NUM_RX_STATS ARRAY_SIZE(ionic_rx_stats_desc)
+#define IONIC_NUM_EXTRA_PORT_STATS	1
 
 #define MAX_Q(lif)   ((lif)->netdev->real_num_tx_queues)
 
@@ -243,7 +244,7 @@ static u64 ionic_sw_stats_get_count(struct ionic_lif *lif)
 		rx_queues += 1;
 
 	total += IONIC_NUM_LIF_STATS;
-	total += IONIC_NUM_PORT_STATS;
+	total += IONIC_NUM_PORT_STATS + IONIC_NUM_EXTRA_PORT_STATS;
 
 	total += tx_queues * IONIC_NUM_TX_STATS;
 	total += rx_queues * IONIC_NUM_RX_STATS;
@@ -280,6 +281,8 @@ static void ionic_sw_stats_get_strings(struct ionic_lif *lif, u8 **buf)
 
 	for (i = 0; i < IONIC_NUM_PORT_STATS; i++)
 		ethtool_puts(buf, ionic_port_stats_desc[i].name);
+	/* extra port stats */
+	ethtool_puts(buf, "rx_bits_phy");
 
 	for (q_num = 0; q_num < MAX_Q(lif); q_num++)
 		ionic_sw_stats_get_tx_strings(lif, buf, q_num);
@@ -322,6 +325,15 @@ static void ionic_sw_stats_get_rxq_values(struct ionic_lif *lif, u64 **buf,
 	}
 }
 
+static void ionic_extra_port_stats_get_values(struct ionic_lif *lif, u64 **buf)
+{
+	struct ionic_port_info *port_info = lif->ionic->idev.port_info;
+
+	/* The # of stats added here == IONIC_NUM_EXTRA_PORT_STATS */
+	**buf = le64_to_cpu(port_info->extra_stats.rx_bits_phy);
+	(*buf)++;
+}
+
 static void ionic_sw_stats_get_values(struct ionic_lif *lif, u64 **buf)
 {
 	struct ionic_port_stats *port_stats;
@@ -341,6 +353,7 @@ static void ionic_sw_stats_get_values(struct ionic_lif *lif, u64 **buf)
 					     &ionic_port_stats_desc[i]);
 		(*buf)++;
 	}
+	ionic_extra_port_stats_get_values(lif, buf);
 
 	for (q_num = 0; q_num < MAX_Q(lif); q_num++)
 		ionic_sw_stats_get_txq_values(lif, buf, q_num);
-- 
2.17.1