On 2021/10/19 22:10, Kevin Laatz wrote:
> Add statistic tracking for DSA devices.
>
> The dmadev library documentation is also updated to add a generic section
> for using the library's statistics APIs.
>
> Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
> Signed-off-by: Kevin Laatz <kevin.la...@intel.com>
> Reviewed-by: Conor Walsh <conor.wa...@intel.com>
> Reviewed-by: Chengwen Feng <fengcheng...@huawei.com>
> ---
> doc/guides/prog_guide/dmadev.rst | 11 +++++++++++
> drivers/dma/idxd/idxd_bus.c | 2 ++
> drivers/dma/idxd/idxd_common.c | 27 +++++++++++++++++++++++++++
> drivers/dma/idxd/idxd_internal.h | 5 +++++
> drivers/dma/idxd/idxd_pci.c | 2 ++
> 5 files changed, 47 insertions(+)
>
> diff --git a/doc/guides/prog_guide/dmadev.rst
> b/doc/guides/prog_guide/dmadev.rst
> index e853ffda3a..139eaff299 100644
> --- a/doc/guides/prog_guide/dmadev.rst
> +++ b/doc/guides/prog_guide/dmadev.rst
> @@ -107,3 +107,14 @@ completed operations along with the status of each
> operation (filled into the
> ``status`` array passed by user). These two APIs can also return the last
> completed operation's ``ring_idx`` which could help user track operations
> within
> their own application-defined rings.
> +
> +
> +Querying Device Statistics
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~
could remove last ~
anyway,
Reviewed-by: Chengwen Feng <fengcheng...@huawei.com>
> +
> +The statistics from a dmadev device can be got via the statistics functions,
> +i.e. ``rte_dma_stats_get()``. The statistics returned for each device
> instance are:
> +
> +* ``submitted``: The number of operations submitted to the device.
> +* ``completed``: The number of operations which have completed (successful
> and failed).
> +* ``errors``: The number of operations that completed with error.
> diff --git a/drivers/dma/idxd/idxd_bus.c b/drivers/dma/idxd/idxd_bus.c
> index b2acdac4f9..b52ea02854 100644
> --- a/drivers/dma/idxd/idxd_bus.c
> +++ b/drivers/dma/idxd/idxd_bus.c
> @@ -99,6 +99,8 @@ static const struct rte_dma_dev_ops idxd_bus_ops = {
> .dev_configure = idxd_configure,
> .vchan_setup = idxd_vchan_setup,
> .dev_info_get = idxd_info_get,
> + .stats_get = idxd_stats_get,
> + .stats_reset = idxd_stats_reset,
> };
>
[snip]
>
