From: Boris Pismenny <borisp@mellanox.com>
Date: Mon, 11 Jun 2018 17:24:58 +0300
Subject: net/mlx5e: Add UDP GSO remaining counter
Patch-mainline: v4.19-rc1
Git-commit: bc5a7ccd9a6025e2ba555ab7dcd5043e2bfde315
References: bsc#1103990 FATE#326006

This patch adds a counter for tx UDP GSO packets that contain a segment
that is not aligned to MSS - remaining segment.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/rxtx.c |    1 +
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.c      |    2 ++
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.h      |    2 ++
 3 files changed, 5 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/rxtx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/rxtx.c
@@ -92,6 +92,7 @@ struct sk_buff *mlx5e_udp_gso_handle_tx_
 	if (!remaining)
 		return skb;
 
+	sq->stats->udp_seg_rem++;
 	nskb = alloc_skb(max_t(int, headlen, headlen + remaining - skb->data_len), GFP_ATOMIC);
 	if (unlikely(!nskb)) {
 		sq->stats->dropped++;
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -68,6 +68,7 @@ static const struct counter_desc sw_stat
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_xmit_more) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_recover) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_queue_wake) },
+	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_udp_seg_rem) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_cqe_err) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_wqe_err) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_mpwqe_filler) },
@@ -159,6 +160,7 @@ void mlx5e_grp_sw_update_stats(struct ml
 			s->tx_added_vlan_packets += sq_stats->added_vlan_packets;
 			s->tx_queue_stopped	+= sq_stats->stopped;
 			s->tx_queue_wake	+= sq_stats->wake;
+			s->tx_udp_seg_rem	+= sq_stats->udp_seg_rem;
 			s->tx_queue_dropped	+= sq_stats->dropped;
 			s->tx_cqe_err		+= sq_stats->cqe_err;
 			s->tx_recover		+= sq_stats->recover;
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -79,6 +79,7 @@ struct mlx5e_sw_stats {
 	u64 tx_xmit_more;
 	u64 tx_recover;
 	u64 tx_queue_wake;
+	u64 tx_udp_seg_rem;
 	u64 tx_cqe_err;
 	u64 rx_wqe_err;
 	u64 rx_mpwqe_filler;
@@ -196,6 +197,7 @@ struct mlx5e_sq_stats {
 	u64 csum_partial_inner;
 	u64 added_vlan_packets;
 	u64 nop;
+	u64 udp_seg_rem;
 #ifdef CONFIG_MLX5_EN_TLS
 	u64 tls_ooo;
 	u64 tls_resync_bytes;