netdev - [PATCH net-next v2 08/10] net/dim: use struct net_dim_sample as arg to net

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Date:   Fri,  5 Jan 2018 17:58:12 -0500
From:   Andy Gospodarek <andy@...yhouse.net>
To:     netdev@...r.kernel.org
Cc:     mchan@...adcom.com, talgi@...lanox.com, ogerlitz@...lanox.com,
        Andy Gospodarek <gospo@...adcom.com>
Subject: [PATCH net-next v2 08/10] net/dim: use struct net_dim_sample as arg to net_dim

From: Andy Gospodarek <gospo@...adcom.com>

Simplify the arguments net_dim() by formatting them into a struct
net_dim_sample before calling the function.

Signed-off-by: Andy Gospodarek <gospo@...adcom.com>
Suggested-by: Tal Gilboa <talgi@...lanox.com>
Acked-by: Tal Gilboa <talgi@...lanox.com>
Acked-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 13 ++++++++-----
 include/linux/net_dim.h                           | 10 +++-------
 2 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
index dae77a9..f292bb3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
@@ -78,11 +78,14 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
 	for (i = 0; i < c->num_tc; i++)
 		mlx5e_cq_arm(&c->sq[i].cq);
 
-	if (MLX5E_TEST_BIT(c->rq.state, MLX5E_RQ_STATE_AM))
-		net_dim(&c->rq.dim,
-			    c->rq.cq.event_ctr,
-			    c->rq.stats.packets,
-			    c->rq.stats.bytes);
+	if (MLX5E_TEST_BIT(c->rq.state, MLX5E_RQ_STATE_AM)) {
+		struct net_dim_sample dim_sample;
+		net_dim_sample(c->rq.cq.event_ctr,
+			       c->rq.stats.packets,
+			       c->rq.stats.bytes,
+			       &dim_sample);
+		net_dim(&c->rq.dim, dim_sample);
+	}
 
 	mlx5e_cq_arm(&c->rq.cq);
 	mlx5e_cq_arm(&c->icosq.cq);
diff --git a/include/linux/net_dim.h b/include/linux/net_dim.h
index bb99073..2cceefa 100644
--- a/include/linux/net_dim.h
+++ b/include/linux/net_dim.h
@@ -341,21 +341,18 @@ static inline void net_dim_calc_stats(struct net_dim_sample *start,
 }
 
 static inline void net_dim(struct net_dim *dim,
-			   u16 event_ctr,
-			   u64 packets,
-			   u64 bytes)
+			   struct net_dim_sample end_sample)
 {
-	struct net_dim_sample end_sample;
 	struct net_dim_stats curr_stats;
 	u16 nevents;
 
 	switch (dim->state) {
 	case NET_DIM_MEASURE_IN_PROGRESS:
-		nevents = BIT_GAP(BITS_PER_TYPE(u16), event_ctr,
+		nevents = BIT_GAP(BITS_PER_TYPE(u16),
+				  end_sample.event_ctr,
 				  dim->start_sample.event_ctr);
 		if (nevents < NET_DIM_NEVENTS)
 			break;
-		net_dim_sample(event_ctr, packets, bytes, &end_sample);
 		net_dim_calc_stats(&dim->start_sample, &end_sample,
 				   &curr_stats);
 		if (net_dim_decision(&curr_stats, dim)) {
@@ -365,7 +362,6 @@ static inline void net_dim(struct net_dim *dim,
 		}
 		/* fall through */
 	case NET_DIM_START_MEASURE:
-		net_dim_sample(event_ctr, packets, bytes, &dim->start_sample);
 		dim->state = NET_DIM_MEASURE_IN_PROGRESS;
 		break;
 	case NET_DIM_APPLY_NEW_PROFILE:
-- 
2.7.4