1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/net_dim.h b/drivers/net/ethernet/mellanox/mlx5/core/net_dim.h
new file mode 100644
index 000000000000..b03a48fc1540
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/net_dim.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
+ * Copyright (c) 2017-2018, Broadcom Limited.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX5_AM_H
+#define MLX5_AM_H
+
+struct mlx5e_cq_moder {
+	u16 usec;
+	u16 pkts;
+	u8 cq_period_mode;
+};
+
+struct mlx5e_rx_am_sample {
+	ktime_t time;
+	u32     pkt_ctr;
+	u32     byte_ctr;
+	u16     event_ctr;
+};
+
+struct mlx5e_rx_am_stats {
+	int ppms; /* packets per msec */
+	int bpms; /* bytes per msec */
+	int epms; /* events per msec */
+};
+
+struct mlx5e_rx_am { /* Adaptive Moderation */
+	u8                                      state;
+	struct mlx5e_rx_am_stats                prev_stats;
+	struct mlx5e_rx_am_sample               start_sample;
+	struct work_struct                      work;
+	u8                                      profile_ix;
+	u8                                      mode;
+	u8                                      tune_state;
+	u8                                      steps_right;
+	u8                                      steps_left;
+	u8                                      tired;
+};
+
+/* Adaptive moderation logic */
+enum {
+	MLX5E_AM_START_MEASURE,
+	MLX5E_AM_MEASURE_IN_PROGRESS,
+	MLX5E_AM_APPLY_NEW_PROFILE,
+};
+
+enum {
+	MLX5E_AM_PARKING_ON_TOP,
+	MLX5E_AM_PARKING_TIRED,
+	MLX5E_AM_GOING_RIGHT,
+	MLX5E_AM_GOING_LEFT,
+};
+
+enum {
+	MLX5E_AM_STATS_WORSE,
+	MLX5E_AM_STATS_SAME,
+	MLX5E_AM_STATS_BETTER,
+};
+
+enum {
+	MLX5E_AM_STEPPED,
+	MLX5E_AM_TOO_TIRED,
+	MLX5E_AM_ON_EDGE,
+};
+
+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);
+struct mlx5e_cq_moder mlx5e_am_get_profile(u8 cq_period_mode, int ix);
+
+#endif /* MLX5_AM_H */