net/mlx5: show incomplete records in Tx trace script

If the trace dump is stored at the moment when there is some
incomplete Tx transfers - WQE is pushed but hardware did not
sent the completions ye

net/mlx5: show incomplete records in Tx trace script

If the trace dump is stored at the moment when there is some
incomplete Tx transfers - WQE is pushed but hardware did not
sent the completions yet - this incomplete was not dumped by
the script mlx5_trace. For some cases (for example, if queue
was stuck) the valuable debug information was lost.

To improve the dump fullness the following optional script
arguments are added:

-v [level] - provides the raw dump of the object record
of the specified level (0 - bursts, 1 - WQEs,
2+ - mbufs)
-a - dumps all bursts, including incomplete ones

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

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net/mlx5: fix Tx tracing to use single clock source

A prior commit introduced tracing for mlx5, but there is a mixture of
two unrelated clocks used: the TSC for host work submission timestamps
and t

net/mlx5: fix Tx tracing to use single clock source

A prior commit introduced tracing for mlx5, but there is a mixture of
two unrelated clocks used: the TSC for host work submission timestamps
and the NIC HW clock for CQE completion times. It is necessary to have
timestamps from a single common clock, and the NIC HW clock is the
better choice since it can be used with externally synchronized clocks.

This patch adds the NIC HW clock as an additional logged parameter for
trace_tx_entry, trace_tx_exit, and trace_tx_wqe. The included trace
analysis python script is also updated to use the new clock when
it is available.

Fixes: a1e910f5b8d4 ("net/mlx5: introduce tracepoints")
Fixes: 9725191a7e14 ("net/mlx5: add Tx datapath trace analyzing script")
Cc: stable@dpdk.org

Signed-off-by: Tim Martin <timothym@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

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net/mlx5: fix trace script for multiple burst completion

In case if there were multiple bursts completed in the single
completion the first only burst was moved to the done list.
The situation is no

net/mlx5: fix trace script for multiple burst completion

In case if there were multiple bursts completed in the single
completion the first only burst was moved to the done list.
The situation is not typical, because usually tracing was
used for scheduled traffic debugging and for this case each
burst had its own completion requested, and there were no
completions with multiple bursts.

Fixes: 9725191a7e14 ("net/mlx5: add Tx datapath trace analyzing script")
Cc: stable@dpdk.org

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

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net/mlx5: add Tx datapath trace analyzing script

The Python script is intended to analyze mlx5 PMD
datapath traces and report:
- tx_burst routine timings
- how packets are pushed to WQEs
- how

net/mlx5: add Tx datapath trace analyzing script

The Python script is intended to analyze mlx5 PMD
datapath traces and report:
- tx_burst routine timings
- how packets are pushed to WQEs
- how packet sending is completed with timings

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

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