7 Commits

Author SHA1 Message Date
Bruce Richardson
3a377b10c2 raw/ioat: clean up use of common test function
Now that all devices can pass the same set of unit tests, eliminate the
temporary idxd_rawdev_test function and move the prototype for
ioat_rawdev_test to the proper internal header file, to be used by all
device instances.

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
60927cc650 raw/ioat: add xstats tracking for idxd device
Add update of the relevant stats for the data path functions and point the
overall device struct xstats function pointers to the existing ioat
functions.

At this point, all necessary hooks for supporting the existing unit tests
are in place so call them for each device.

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
2e35907532 raw/ioat: add info query for idxd device
Add the info get function for DSA devices, returning just the ring size
info about the device, same as is returned for existing IOAT/CBDMA devices.

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
69c4162643 raw/ioat: configure idxd devices
Add configure function for idxd devices, taking the same parameters as the
existing configure function for ioat. The ring_size parameter is used to
compute the maximum number of bursts to be supported by the driver, given
that the hardware works on individual bursts of descriptors at a time.

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
389d519785 raw/ioat: add datapath data structures for idxd devices
Add in the relevant data structures for the data path for DSA devices. Also
include a device dump function to output the status of each device.

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
Kevin Laatz
425fe89287 raw/ioat: probe idxd vdev
For each vdev (DSA work queue) instance, create a rawdev instance.

Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>
2020-10-08 14:33:20 +02:00
Kevin Laatz
777edf43ae raw/ioat: introduce vdev probe for DSA/idxd device
The Intel DSA devices can be exposed to userspace via kernel driver, so can
be used without having to bind them to vfio/uio. Therefore we add support
for using those kernel-configured devices as vdevs, taking as parameter the
individual HW work queue to be used by the vdev.

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