net/mlx4: Query performance and diagnostics counters

Add a function to query diagnostics counters from the firmware.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 680d110aff05..abcce821ac00 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -1381,6 +1381,9 @@ void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
 int mlx4_SYNC_TPT(struct mlx4_dev *dev);
 int mlx4_test_interrupts(struct mlx4_dev *dev);
+int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,
+                             const u32 offset[], u32 value[],
+                             size_t array_len, u8 port);
 u32 mlx4_get_eqs_per_port(struct mlx4_dev *dev, u8 port);
 bool mlx4_is_eq_vector_valid(struct mlx4_dev *dev, u8 port, int vector);
 struct cpu_rmap *mlx4_get_cpu_rmap(struct mlx4_dev *dev, int port);