From: Andy Gospodarek <go...@broadcom.com>

This makes mlx5e_am_sample more generic so that it can be called easily
from a driver that does not use the same data structure to store these
values in a single structure.

Signed-off-by: Andy Gospodarek <go...@broadcom.com>
Acked-by: Tal Gilboa <ta...@mellanox.com>
Acked-by: Saeed Mahameed <sae...@mellanox.com>

---
 drivers/net/ethernet/mellanox/mlx5/core/en_dim.h   |  6 ++++--
 drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c | 22 +++++++++++++---------
 drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c  |  5 ++++-
 3 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dim.h 
b/drivers/net/ethernet/mellanox/mlx5/core/en_dim.h
index f5f6535..b676a057 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dim.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dim.h
@@ -72,8 +72,10 @@ enum {
        MLX5_CQ_PERIOD_NUM_MODES
 };
 
-struct mlx5e_rq;
-void mlx5e_rx_am(struct mlx5e_rq *rq);
+void mlx5e_rx_am(struct mlx5e_rx_am *am,
+                u16 event_ctr,
+                u64 packets,
+                u64 bytes);
 void mlx5e_rx_am_work(struct work_struct *work);
 struct mlx5e_cq_moder mlx5e_am_get_def_profile(u8 rx_cq_period_mode);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
index e401d9d..1630076 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
@@ -264,13 +264,15 @@ static bool mlx5e_am_decision(struct mlx5e_rx_am_stats 
*curr_stats,
        return am->profile_ix != prev_ix;
 }
 
-static void mlx5e_am_sample(struct mlx5e_rq *rq,
+static void mlx5e_am_sample(u16 event_ctr,
+                           u64 packets,
+                           u64 bytes,
                            struct mlx5e_rx_am_sample *s)
 {
        s->time      = ktime_get();
-       s->pkt_ctr   = rq->stats.packets;
-       s->byte_ctr  = rq->stats.bytes;
-       s->event_ctr = rq->cq.event_ctr;
+       s->pkt_ctr   = packets;
+       s->byte_ctr  = bytes;
+       s->event_ctr = event_ctr;
 }
 
 #define MLX5E_AM_NEVENTS 64
@@ -309,20 +311,22 @@ void mlx5e_rx_am_work(struct work_struct *work)
        am->state = MLX5E_AM_START_MEASURE;
 }
 
-void mlx5e_rx_am(struct mlx5e_rq *rq)
+void mlx5e_rx_am(struct mlx5e_rx_am *am,
+                u16 event_ctr,
+                u64 packets,
+                u64 bytes)
 {
-       struct mlx5e_rx_am *am = &rq->am;
        struct mlx5e_rx_am_sample end_sample;
        struct mlx5e_rx_am_stats curr_stats;
        u16 nevents;
 
        switch (am->state) {
        case MLX5E_AM_MEASURE_IN_PROGRESS:
-               nevents = BIT_GAP(BITS_PER_TYPE(u16), rq->cq.event_ctr,
+               nevents = BIT_GAP(BITS_PER_TYPE(u16), event_ctr,
                                  am->start_sample.event_ctr);
                if (nevents < MLX5E_AM_NEVENTS)
                        break;
-               mlx5e_am_sample(rq, &end_sample);
+               mlx5e_am_sample(event_ctr, packets, bytes, &end_sample);
                mlx5e_am_calc_stats(&am->start_sample, &end_sample,
                                    &curr_stats);
                if (mlx5e_am_decision(&curr_stats, am)) {
@@ -332,7 +336,7 @@ void mlx5e_rx_am(struct mlx5e_rq *rq)
                }
                /* fall through */
        case MLX5E_AM_START_MEASURE:
-               mlx5e_am_sample(rq, &am->start_sample);
+               mlx5e_am_sample(event_ctr, packets, bytes, &am->start_sample);
                am->state = MLX5E_AM_MEASURE_IN_PROGRESS;
                break;
        case MLX5E_AM_APPLY_NEW_PROFILE:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
index ab92298..1849169 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
@@ -79,7 +79,10 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
                mlx5e_cq_arm(&c->sq[i].cq);
 
        if (MLX5E_TEST_BIT(c->rq.state, MLX5E_RQ_STATE_AM))
-               mlx5e_rx_am(&c->rq);
+               mlx5e_rx_am(&c->rq.am,
+                           c->rq.cq.event_ctr,
+                           c->rq.stats.packets,
+                           c->rq.stats.bytes);
 
        mlx5e_cq_arm(&c->rq.cq);
        mlx5e_cq_arm(&c->icosq.cq);
-- 
2.7.4

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