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Refactor HW statistics which,
- Unifies HW statistics support for all HW generations.
- Unifies support of 32- and 64-bit counters.
- Removes duplicated code and simplifies implementation.
- Fixes roll-over handling.
- Removes unneeded last_hw_stats.
With new implementation, there is no separate handling and no separate
arrays for 32- and 64-bit counters (offsets, regs, values). Instead,
there is a HW stats map array for each HW revision, which defines
HW-specific width and location of each counter in the statistics buffer.
Once the statistics are gathered (either via CQP op, or by reading HW
registers), counter values are extracted from the statistics buffer using
the stats map and the delta between the last and new values is computed.
Finally, the counter values in rdma_hw_stats are incremented by those
deltas.
From the OS perspective, all the counters are 64-bit and their order in
rdma_hw_stats->value[] array, as well as in irdma_hw_stat_names[], is the
same for all HW gens. New statistics should always be added at the end.
Signed-off-by: Krzysztof Czurylo <krzysztof.czurylo@intel.com>
Signed-off-by: Youvaraj Sagar <youvaraj.sagar@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230315145305.955-2-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
x722 does not support 1GB page size but the irdma driver incorrectly
advertises 1GB page size support for x722 device to ib_core to compute the
best page size to use on this MR. This could lead to incorrect start
offsets computed by hardware on the MR.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Replace use of custom irdma_status_code with linux error codes.
Remove enum irdma_status_code and header in which its defined.
Link: https://lore.kernel.org/r/20220217151851.1518-2-shiraz.saleem@intel.com
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
