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

Eric Joyner
2026-05-01T03:16:32Z

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>
---
.../net/ethernet/pensando/ionic/ionic_stats.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_stats.c b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
index 8f39f687a39f..f64f52083301 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_stats.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
@@ -167,7 +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 IONIC_NUM_EXTRA_PORT_STATS 2

#define MAX_Q(lif) ((lif)->netdev->real_num_tx_queues)

@@ -281,7 +281,9 @@ 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, "link_down_events_phy");
+ 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);
@@ -324,6 +326,17 @@ 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 = le16_to_cpu(port_info->status.link_down_count);
+ (*buf)++;
+ **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;
@@ -343,8 +356,7 @@ static void ionic_sw_stats_get_values(struct ionic_lif *lif, u64 **buf)
&ionic_port_stats_desc[i]);
(*buf)++;
}
- **buf = le16_to_cpu(lif->ionic->idev.port_info->status.link_down_count);
- (*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