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Date:      Fri, 10 Nov 2017 13:58:49 +0000 (UTC)
From:      Hans Petter Selasky <hselasky@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r325657 - in head/sys/dev/mlx5: . mlx5_core
Message-ID:  <201711101358.vAADwnb4014452@repo.freebsd.org>

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Author: hselasky
Date: Fri Nov 10 13:58:49 2017
New Revision: 325657
URL: https://svnweb.freebsd.org/changeset/base/325657

Log:
  Add API function to query port performance counters for infiniband and RoCE
  traffic in mlx5 core.
  
  Sponsored by:	Mellanox Technologies
  MFC after:	1 week

Modified:
  head/sys/dev/mlx5/mlx5_core/mlx5_vport.c
  head/sys/dev/mlx5/vport.h

Modified: head/sys/dev/mlx5/mlx5_core/mlx5_vport.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_core/mlx5_vport.c	Fri Nov 10 13:56:11 2017	(r325656)
+++ head/sys/dev/mlx5/mlx5_core/mlx5_vport.c	Fri Nov 10 13:58:49 2017	(r325657)
@@ -1757,3 +1757,25 @@ out:
 	return err;
 }
 EXPORT_SYMBOL_GPL(mlx5_query_hca_vport_state);
+
+int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
+			     u8 port_num, void *out, size_t sz)
+{
+	u32 *in;
+	int err;
+
+	in  = mlx5_vzalloc(sz);
+	if (!in) {
+		err = -ENOMEM;
+		return err;
+	}
+
+	MLX5_SET(ppcnt_reg, in, local_port, port_num);
+
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_INFINIBAND_PORT_COUNTERS_GROUP);
+	err = mlx5_core_access_reg(dev, in, sz, out,
+				   sz, MLX5_REG_PPCNT, 0, 0);
+
+	kvfree(in);
+	return err;
+}

Modified: head/sys/dev/mlx5/vport.h
==============================================================================
--- head/sys/dev/mlx5/vport.h	Fri Nov 10 13:56:11 2017	(r325656)
+++ head/sys/dev/mlx5/vport.h	Fri Nov 10 13:58:49 2017	(r325657)
@@ -143,4 +143,6 @@ int mlx5_query_vport_counter(struct mlx5_core_dev *dev
 			     void *out, int out_size);
 int mlx5_get_vport_counters(struct mlx5_core_dev *dev, u8 port_num,
 			    struct mlx5_vport_counters *vc);
+int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
+			     u8 port_num, void *out, size_t sz);
 #endif /* __MLX5_VPORT_H__ */



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