Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bfaf3168 authored by Mark Bloch's avatar Mark Bloch Committed by Doug Ledford
Browse files

net/mlx4: Query performance and diagnostics counters 



Add a function to query diagnostics counters from the firmware.

Signed-off-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c7c122ed

drivers/net/ethernet/mellanox/mlx4/fw.c

+36 −0
Original line number Diff line number Diff line
@@ -2460,6 +2460,42 @@ int mlx4_NOP(struct mlx4_dev *dev) 
			MLX4_CMD_NATIVE);

}



int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,

			     const u32 offset[],

			     u32 value[], size_t array_len, u8 port)

{

	struct mlx4_cmd_mailbox *mailbox;

	u32 *outbox;

	size_t i;

	int ret;



	mailbox = mlx4_alloc_cmd_mailbox(dev);

	if (IS_ERR(mailbox))

		return PTR_ERR(mailbox);



	outbox = mailbox->buf;



	ret = mlx4_cmd_box(dev, 0, mailbox->dma, port, op_modifier,

			   MLX4_CMD_DIAG_RPRT, MLX4_CMD_TIME_CLASS_A,

			   MLX4_CMD_NATIVE);

	if (ret)

		goto out;



	for (i = 0; i < array_len; i++) {

		if (offset[i] > MLX4_MAILBOX_SIZE) {

			ret = -EINVAL;

			goto out;

		}



		MLX4_GET(value[i], outbox, offset[i]);

	}



out:

	mlx4_free_cmd_mailbox(dev, mailbox);

	return ret;

}

EXPORT_SYMBOL(mlx4_query_diag_counters);



int mlx4_get_phys_port_id(struct mlx4_dev *dev)

{

	u8 port;

include/linux/mlx4/device.h

+3 −0
Original line number Diff line number Diff line
@@ -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);