diff options
| author | Mark Bloch | 2016-07-19 19:54:57 +0200 |
|---|---|---|
| committer | Doug Ledford | 2016-08-04 03:03:34 +0200 |
| commit | bfaf31687c2628ebb95c58a472d46db3f94c554f (patch) | |
| tree | ee972554ddb5d61e872b0ee8e7929aa8fbc99ef3 /drivers/net/ethernet/mellanox/mlx4/fw.c | |
| parent | net/mlx4: Add diagnostic counters capability bit (diff) | |
| download | kernel-qcow2-linux-bfaf31687c2628ebb95c58a472d46db3f94c554f.tar.gz kernel-qcow2-linux-bfaf31687c2628ebb95c58a472d46db3f94c554f.tar.xz kernel-qcow2-linux-bfaf31687c2628ebb95c58a472d46db3f94c554f.zip | |
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>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/fw.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/fw.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 90a28ab670da..0a525604659d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -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; |