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3 Commits

Author SHA1 Message Date
Bruce Richardson
a339694621 raw/ioat: fix work-queue config size 
According to latest DSA spec[1], the work-queue config register size
should be based off a value read from the WQ capabilities register.
Update driver to read this value and base the start of each WQ config
off that value.

[1] https://software.intel.com/content/www/us/en/develop/download/intel-data-streaming-accelerator-preliminary-architecture-specification.html

Fixes: ff06fa2cf3ba ("raw/ioat: probe idxd PCI")

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Kevin Laatz <kevin.laatz@intel.com>
 2020-10-30 16:01:45 +01:00
Bruce Richardson
ff06fa2cf3 raw/ioat: probe idxd PCI 
When a matching device is found via PCI probe create a rawdev instance for
each queue on the hardware. Use empty self-test function for these devices
so that the overall rawdev_autotest does not report failures.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>
 2020-10-08 14:33:20 +02:00
Bruce Richardson
cae8a1b19e raw/ioat: make HW register spec private 
Only a few definitions from the hardware spec are actually used in the
driver runtime, so we can copy over those few and make the rest of the spec
a private header in the driver.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>
 2020-10-08 14:33:20 +02:00