net/mlx5e: Change Mellanox references in DIM code

Change all appropriate mlx5_am* and MLX5_AM* references to net_dim and
NET_DIM, respectively, in code that handles dynamic interrupt
moderation.  Also change all references from 'am' to 'dim' when used as
local variables and add generic profile references.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Acked-by: Tal Gilboa <talgi@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -238,8 +238,8 @@ struct mlx5e_params {
 	u16 num_channels;
 	u8  num_tc;
 	bool rx_cqe_compress_def;
-	struct mlx5e_cq_moder rx_cq_moderation;
-	struct mlx5e_cq_moder tx_cq_moderation;
+	struct net_dim_cq_moder rx_cq_moderation;
+	struct net_dim_cq_moder tx_cq_moderation;
 	bool lro_en;
 	u32 lro_wqe_sz;
 	u16 tx_max_inline;
@@ -249,7 +249,7 @@ struct mlx5e_params {
 	u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE];
 	bool vlan_strip_disable;
 	bool scatter_fcs_en;
-	bool rx_am_enabled;
+	bool rx_dim_enabled;
 	u32 lro_timeout;
 	u32 pflags;
 	struct bpf_prog *xdp_prog;
@@ -528,7 +528,7 @@ struct mlx5e_rq {
 	unsigned long          state;
 	int                    ix;
 
-	struct mlx5e_rx_am     am; /* Adaptive Moderation */
+	struct net_dim         dim; /* Dynamic Interrupt Moderation */
 
 	/* XDP */
 	struct bpf_prog       *xdp_prog;
@@ -1080,4 +1080,5 @@ void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
 			    struct mlx5e_params *params,
 			    u16 max_channels);
 u8 mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev);
+void mlx5e_rx_dim_work(struct work_struct *work);
 #endif /* __MLX5_EN_H__ */

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

@@ -32,16 +32,16 @@
 
 #include "en.h"
 
-void mlx5e_rx_am_work(struct work_struct *work)
+void mlx5e_rx_dim_work(struct work_struct *work)
 {
-	struct mlx5e_rx_am *am = container_of(work, struct mlx5e_rx_am,
+	struct net_dim *dim = container_of(work, struct net_dim,
 					   work);
-	struct mlx5e_rq *rq = container_of(am, struct mlx5e_rq, am);
-	struct mlx5e_cq_moder cur_profile = mlx5e_am_get_profile(am->mode,
-								 am->profile_ix);
+	struct mlx5e_rq *rq = container_of(dim, struct mlx5e_rq, dim);
+	struct net_dim_cq_moder cur_profile = net_dim_get_profile(dim->mode,
+								  dim->profile_ix);
 
 	mlx5_core_modify_cq_moderation(rq->mdev, &rq->cq.mcq,
 				       cur_profile.usec, cur_profile.pkts);
 
-	am->state = MLX5E_AM_START_MEASURE;
+	dim->state = NET_DIM_START_MEASURE;
 }

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

@@ -465,7 +465,7 @@ int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
 	coal->rx_max_coalesced_frames = priv->channels.params.rx_cq_moderation.pkts;
 	coal->tx_coalesce_usecs       = priv->channels.params.tx_cq_moderation.usec;
 	coal->tx_max_coalesced_frames = priv->channels.params.tx_cq_moderation.pkts;
-	coal->use_adaptive_rx_coalesce = priv->channels.params.rx_am_enabled;
+	coal->use_adaptive_rx_coalesce = priv->channels.params.rx_dim_enabled;
 
 	return 0;
 }
@@ -519,7 +519,7 @@ int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 	new_channels.params.tx_cq_moderation.pkts = coal->tx_max_coalesced_frames;
 	new_channels.params.rx_cq_moderation.usec = coal->rx_coalesce_usecs;
 	new_channels.params.rx_cq_moderation.pkts = coal->rx_max_coalesced_frames;
-	new_channels.params.rx_am_enabled         = !!coal->use_adaptive_rx_coalesce;
+	new_channels.params.rx_dim_enabled        = !!coal->use_adaptive_rx_coalesce;
 
 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
 		priv->channels.params = new_channels.params;
@@ -527,7 +527,7 @@ int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 	}
 	/* we are opened */
 
-	reset = !!coal->use_adaptive_rx_coalesce != priv->channels.params.rx_am_enabled;
+	reset = !!coal->use_adaptive_rx_coalesce != priv->channels.params.rx_dim_enabled;
 	if (!reset) {
 		mlx5e_set_priv_channels_coalesce(priv, coal);
 		priv->channels.params = new_channels.params;

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

@@ -677,8 +677,17 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 		wqe->data.lkey = rq->mkey_be;
 	}
 
-	INIT_WORK(&rq->am.work, mlx5e_rx_am_work);
-	rq->am.mode = params->rx_cq_moderation.cq_period_mode;
+	INIT_WORK(&rq->dim.work, mlx5e_rx_dim_work);
+
+	switch (params->rx_cq_moderation.cq_period_mode) {
+	case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
+		rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE;
+		break;
+	case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
+	default:
+		rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
+	}
+
 	rq->page_cache.head = 0;
 	rq->page_cache.tail = 0;
 
@@ -925,7 +934,7 @@ static int mlx5e_open_rq(struct mlx5e_channel *c,
 	if (err)
 		goto err_destroy_rq;
 
-	if (params->rx_am_enabled)
+	if (params->rx_dim_enabled)
 		c->rq.state |= BIT(MLX5E_RQ_STATE_AM);
 
 	return 0;
@@ -958,7 +967,7 @@ static void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
 
 static void mlx5e_close_rq(struct mlx5e_rq *rq)
 {
-	cancel_work_sync(&rq->am.work);
+	cancel_work_sync(&rq->dim.work);
 	mlx5e_destroy_rq(rq);
 	mlx5e_free_rx_descs(rq);
 	mlx5e_free_rq(rq);
@@ -1571,7 +1580,7 @@ static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
 }
 
 static int mlx5e_open_cq(struct mlx5e_channel *c,
-			 struct mlx5e_cq_moder moder,
+			 struct net_dim_cq_moder moder,
 			 struct mlx5e_cq_param *param,
 			 struct mlx5e_cq *cq)
 {
@@ -1753,7 +1762,7 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
 			      struct mlx5e_channel_param *cparam,
 			      struct mlx5e_channel **cp)
 {
-	struct mlx5e_cq_moder icocq_moder = {0, 0};
+	struct net_dim_cq_moder icocq_moder = {0, 0};
 	struct net_device *netdev = priv->netdev;
 	int cpu = mlx5e_get_cpu(priv, ix);
 	struct mlx5e_channel *c;
@@ -2005,7 +2014,7 @@ static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
 
 	mlx5e_build_common_cq_param(priv, param);
 
-	param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
+	param->cq_period_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE;
 }
 
 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
@@ -4047,9 +4056,18 @@ void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
 		params->rx_cq_moderation.usec =
 			MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
 
-	if (params->rx_am_enabled)
+	if (params->rx_dim_enabled) {
+		switch (cq_period_mode) {
+		case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
 			params->rx_cq_moderation =
-			mlx5e_am_get_def_profile(cq_period_mode);
+				net_dim_get_def_profile(NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE);
+			break;
+		case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
+		default:
+			params->rx_cq_moderation =
+				net_dim_get_def_profile(NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE);
+		}
+	}
 
 	MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER,
 			params->rx_cq_moderation.cq_period_mode ==
@@ -4111,7 +4129,7 @@ void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
 	cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
 			MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
 			MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
-	params->rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
+	params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
 	mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
 	mlx5e_set_tx_cq_mode_params(params, cq_period_mode);
 

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

@@ -884,7 +884,7 @@ static void mlx5e_build_rep_params(struct mlx5_core_dev *mdev,
 	params->rq_wq_type  = MLX5_WQ_TYPE_LINKED_LIST;
 	params->log_rq_size = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE;
 
-	params->rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
+	params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
 	mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
 
 	params->tx_max_inline         = mlx5e_get_max_inline_cap(mdev);

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

@@ -79,7 +79,7 @@ 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.am,
+		net_dim(&c->rq.dim,
 			c->rq.cq.event_ctr,
 			c->rq.stats.packets,
 			c->rq.stats.bytes);

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

@@ -31,32 +31,32 @@
  * SOFTWARE.
  */
 
-#ifndef MLX5_AM_H
-#define MLX5_AM_H
+#ifndef NET_DIM_H
+#define NET_DIM_H
 
-struct mlx5e_cq_moder {
+struct net_dim_cq_moder {
 	u16 usec;
 	u16 pkts;
 	u8 cq_period_mode;
 };
 
-struct mlx5e_rx_am_sample {
+struct net_dim_sample {
 	ktime_t time;
 	u32     pkt_ctr;
 	u32     byte_ctr;
 	u16     event_ctr;
 };
 
-struct mlx5e_rx_am_stats {
+struct net_dim_stats {
 	int ppms; /* packets per msec */
 	int bpms; /* bytes per msec */
 	int epms; /* events per msec */
 };
 
-struct mlx5e_rx_am { /* Adaptive Moderation */
+struct net_dim { /* Adaptive Moderation */
 	u8                                      state;
-	struct mlx5e_rx_am_stats                prev_stats;
-	struct mlx5e_rx_am_sample               start_sample;
+	struct net_dim_stats                    prev_stats;
+	struct net_dim_sample                   start_sample;
 	struct work_struct                      work;
 	u8                                      profile_ix;
 	u8                                      mode;
@@ -66,38 +66,43 @@ struct mlx5e_rx_am { /* Adaptive Moderation */
 	u8                                      tired;
 };
 
+enum {
+	NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE = 0x0,
+	NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE = 0x1,
+	NET_DIM_CQ_PERIOD_NUM_MODES
+};
+
 /* Adaptive moderation logic */
 enum {
-	MLX5E_AM_START_MEASURE,
-	MLX5E_AM_MEASURE_IN_PROGRESS,
-	MLX5E_AM_APPLY_NEW_PROFILE,
+	NET_DIM_START_MEASURE,
+	NET_DIM_MEASURE_IN_PROGRESS,
+	NET_DIM_APPLY_NEW_PROFILE,
 };
 
 enum {
-	MLX5E_AM_PARKING_ON_TOP,
-	MLX5E_AM_PARKING_TIRED,
-	MLX5E_AM_GOING_RIGHT,
-	MLX5E_AM_GOING_LEFT,
+	NET_DIM_PARKING_ON_TOP,
+	NET_DIM_PARKING_TIRED,
+	NET_DIM_GOING_RIGHT,
+	NET_DIM_GOING_LEFT,
 };
 
 enum {
-	MLX5E_AM_STATS_WORSE,
-	MLX5E_AM_STATS_SAME,
-	MLX5E_AM_STATS_BETTER,
+	NET_DIM_STATS_WORSE,
+	NET_DIM_STATS_SAME,
+	NET_DIM_STATS_BETTER,
 };
 
 enum {
-	MLX5E_AM_STEPPED,
-	MLX5E_AM_TOO_TIRED,
-	MLX5E_AM_ON_EDGE,
+	NET_DIM_STEPPED,
+	NET_DIM_TOO_TIRED,
+	NET_DIM_ON_EDGE,
 };
 
-void mlx5e_rx_am(struct mlx5e_rx_am *am,
+void net_dim(struct net_dim *dim,
 	     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);
-struct mlx5e_cq_moder mlx5e_am_get_profile(u8 cq_period_mode, int ix);
+struct net_dim_cq_moder net_dim_get_def_profile(u8 rx_cq_period_mode);
+struct net_dim_cq_moder net_dim_get_profile(u8 cq_period_mode, int ix);
 
-#endif /* MLX5_AM_H */
+#endif /* NET_DIM_H */