[dpdk-dev] [PATCH 0/4] net/mlx5: fix imissed statistic
Raslan Darawsheh
rasland at nvidia.com
Wed Mar 3 17:28:25 CET 2021
Hi,
> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Matan Azrad
> Sent: Thursday, February 25, 2021 12:45 PM
> To: dev at dpdk.org
> Cc: Slava Ovsiienko <viacheslavo at nvidia.com>
> Subject: [dpdk-dev] [PATCH 0/4] net/mlx5: fix imissed statistic
>
> The imissed port statistic counts packets that were dropped
> by the device Rx queues.
>
> In mlx5, the imissed counter summarizes 2 counters:
> - packets dropped by the SW queue handling counted by SW.
> - packets dropped by the HW queues due to "out of buffer" events
> detected when no SW buffer is available for the incoming
> packets.
>
> There is HW counter object that should be created per device, and all
> the Rx queues should be assigned to this counter in configuration time.
>
> This part was missed when the Rx queues were created by DevX what
> remained the "out of buffer" counter clean forever in this case.
>
> Add 2 options to assign the DevX Rx queues to queue counter:
> - Create queue counter per device by DevX and assign all the
> queues to it.
> - Query the kernel counter and assign all the queues to it.
>
> Use the first option by default and if it is failed, fallback to the
> second option.
>
> Matan Azrad (4):
> common/mlx5/linux: add glue function to query WQ
> common/mlx5: add DevX command to query WQ
> common/mlx5: add DevX commands for queue counters
> net/mlx5: fix imissed statistics
>
> Series-acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
>
>
> drivers/common/mlx5/linux/mlx5_glue.c | 18 ++++++
> drivers/common/mlx5/linux/mlx5_glue.h | 2 +
> drivers/common/mlx5/mlx5_devx_cmds.c | 100
> ++++++++++++++++++++++++++++++++++
> drivers/common/mlx5/mlx5_devx_cmds.h | 9 +++
> drivers/common/mlx5/mlx5_prm.h | 100
> ++++++++++++++++++++++++++++++++++
> drivers/common/mlx5/version.map | 5 +-
> drivers/net/mlx5/linux/mlx5_os.c | 52 ++++++++++++++++++
> drivers/net/mlx5/mlx5.c | 4 ++
> drivers/net/mlx5/mlx5.h | 2 +
> drivers/net/mlx5/mlx5_devx.c | 2 +
> 10 files changed, 293 insertions(+), 1 deletion(-)
>
> --
> 1.8.3.1
Series applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
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