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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>
This commit is contained in:
Mark Bloch 2016-07-19 20:54:57 +03:00 committed by Doug Ledford
parent c7c122ed67
commit bfaf31687c
2 changed files with 39 additions and 0 deletions
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36
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -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;

3
include/linux/mlx4/device.h
View File

@ -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);