From: Aharon Landau Date: Mon, 16 Dec 2019 10:50:13 +0000 (+0200) Subject: net/mlx5e: Add discard counters per priority X-Git-Tag: v5.15~4637^2~70^2~7^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=827a8cb2dd2b72848652b2a425bba3262808ff44;p=platform%2Fkernel%2Flinux-starfive.git net/mlx5e: Add discard counters per priority Add counters that count (per priority) the number of received packets that dropped due to lack of buffers on a physical port. If this counter is increasing, it implies that the adapter is congested and cannot absorb the traffic coming from the network. Signed-off-by: Aharon Landau Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 9f09253..33081b7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -1130,6 +1130,7 @@ static void mlx5e_grp_per_port_buffer_congest_update_stats(struct mlx5e_priv *pr static const struct counter_desc pport_per_prio_traffic_stats_desc[] = { { "rx_prio%d_bytes", PPORT_PER_PRIO_OFF(rx_octets) }, { "rx_prio%d_packets", PPORT_PER_PRIO_OFF(rx_frames) }, + { "rx_prio%d_discards", PPORT_PER_PRIO_OFF(rx_discards) }, { "tx_prio%d_bytes", PPORT_PER_PRIO_OFF(tx_octets) }, { "tx_prio%d_packets", PPORT_PER_PRIO_OFF(tx_frames) }, }; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 2ab4562..ee0a34d 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -2180,7 +2180,9 @@ struct mlx5_ifc_eth_per_prio_grp_data_layout_bits { u8 rx_pause_transition_low[0x20]; - u8 reserved_at_3c0[0x40]; + u8 rx_discards_high[0x20]; + + u8 rx_discards_low[0x20]; u8 device_stall_minor_watermark_cnt_high[0x20];