net/mlx5e: Always select CONFIG_PAGE_POOL_STATS

Always set PAGE_POOL_STATS in mlx5 Eth driver.
Cleanup the corresponding #ifdefs.

Page pool stats are essential to monitor and analyze RX performance.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/1742412199-159596-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: Tariq Toukan

drivers/net/ethernet/mellanox/mlx5/core/Kconfig

@@ -31,6 +31,7 @@ config MLX5_CORE_EN
 	bool "Mellanox 5th generation network adapters (ConnectX series) Ethernet support"
 	depends on NETDEVICES && ETHERNET && INET && PCI && MLX5_CORE
 	select PAGE_POOL
+	select PAGE_POOL_STATS
 	select DIMLIB
 	help
 	  Ethernet support in Mellanox Technologies ConnectX-4 NIC.

drivers/net/ethernet/mellanox/mlx5/core/en_stats.c

@@ -37,9 +37,7 @@
 #include "en/ptp.h"
 #include "en/port.h"
 
-#ifdef CONFIG_PAGE_POOL_STATS
 #include <net/page_pool/helpers.h>
-#endif
 
 void mlx5e_ethtool_put_stat(u64 **data, u64 val)
 {
@@ -196,7 +194,6 @@ static const struct counter_desc sw_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_arfs_err) },
 #endif
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_recover) },
-#ifdef CONFIG_PAGE_POOL_STATS
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_alloc_fast) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_alloc_slow) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_alloc_slow_high_order) },
@@ -208,7 +205,6 @@ static const struct counter_desc sw_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_recycle_ring) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_recycle_ring_full) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_pp_recycle_released_ref) },
-#endif
 #ifdef CONFIG_MLX5_EN_TLS
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_tls_decrypted_packets) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_tls_decrypted_bytes) },
@@ -377,7 +373,6 @@ static void mlx5e_stats_grp_sw_update_stats_rq_stats(struct mlx5e_sw_stats *s,
 	s->rx_arfs_err                += rq_stats->arfs_err;
 #endif
 	s->rx_recover                 += rq_stats->recover;
-#ifdef CONFIG_PAGE_POOL_STATS
 	s->rx_pp_alloc_fast          += rq_stats->pp_alloc_fast;
 	s->rx_pp_alloc_slow          += rq_stats->pp_alloc_slow;
 	s->rx_pp_alloc_empty         += rq_stats->pp_alloc_empty;
@@ -389,7 +384,6 @@ static void mlx5e_stats_grp_sw_update_stats_rq_stats(struct mlx5e_sw_stats *s,
 	s->rx_pp_recycle_ring			+= rq_stats->pp_recycle_ring;
 	s->rx_pp_recycle_ring_full		+= rq_stats->pp_recycle_ring_full;
 	s->rx_pp_recycle_released_ref		+= rq_stats->pp_recycle_released_ref;
-#endif
 #ifdef CONFIG_MLX5_EN_TLS
 	s->rx_tls_decrypted_packets   += rq_stats->tls_decrypted_packets;
 	s->rx_tls_decrypted_bytes     += rq_stats->tls_decrypted_bytes;
@@ -496,7 +490,6 @@ static void mlx5e_stats_grp_sw_update_stats_qos(struct mlx5e_priv *priv,
 	}
 }
 
-#ifdef CONFIG_PAGE_POOL_STATS
 static void mlx5e_stats_update_stats_rq_page_pool(struct mlx5e_channel *c)
 {
 	struct mlx5e_rq_stats *rq_stats = c->rq.stats;
@@ -519,11 +512,6 @@ static void mlx5e_stats_update_stats_rq_page_pool(struct mlx5e_channel *c)
 	rq_stats->pp_recycle_ring_full = stats.recycle_stats.ring_full;
 	rq_stats->pp_recycle_released_ref = stats.recycle_stats.released_refcnt;
 }
-#else
-static void mlx5e_stats_update_stats_rq_page_pool(struct mlx5e_channel *c)
-{
-}
-#endif
 
 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw)
 {
@@ -2131,7 +2119,6 @@ static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, arfs_err) },
 #endif
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, recover) },
-#ifdef CONFIG_PAGE_POOL_STATS
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_alloc_fast) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_alloc_slow) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_alloc_slow_high_order) },
@@ -2143,7 +2130,6 @@ static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_recycle_ring) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_recycle_ring_full) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, pp_recycle_released_ref) },
-#endif
 #ifdef CONFIG_MLX5_EN_TLS
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, tls_decrypted_packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, tls_decrypted_bytes) },

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

@@ -215,7 +215,6 @@ struct mlx5e_sw_stats {
 	u64 ch_aff_change;
 	u64 ch_force_irq;
 	u64 ch_eq_rearm;
-#ifdef CONFIG_PAGE_POOL_STATS
 	u64 rx_pp_alloc_fast;
 	u64 rx_pp_alloc_slow;
 	u64 rx_pp_alloc_slow_high_order;
@@ -227,7 +226,6 @@ struct mlx5e_sw_stats {
 	u64 rx_pp_recycle_ring;
 	u64 rx_pp_recycle_ring_full;
 	u64 rx_pp_recycle_released_ref;
-#endif
 #ifdef CONFIG_MLX5_EN_TLS
 	u64 tx_tls_encrypted_packets;
 	u64 tx_tls_encrypted_bytes;
@@ -385,7 +383,6 @@ struct mlx5e_rq_stats {
 	u64 arfs_err;
 #endif
 	u64 recover;
-#ifdef CONFIG_PAGE_POOL_STATS
 	u64 pp_alloc_fast;
 	u64 pp_alloc_slow;
 	u64 pp_alloc_slow_high_order;
@@ -397,7 +394,6 @@ struct mlx5e_rq_stats {
 	u64 pp_recycle_ring;
 	u64 pp_recycle_ring_full;
 	u64 pp_recycle_released_ref;
-#endif
 #ifdef CONFIG_MLX5_EN_TLS
 	u64 tls_decrypted_packets;
 	u64 tls_decrypted_bytes;