The rawdev xstats_reset function is now enabled. It is called when the
ioat autotest completes, to reset all xstat values after they have been
modified during testing.
Signed-off-by: Ciara Power <ciara.power@intel.com>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
The incriminated commit broke the use of RTE_PCI_DRV_IOVA_AS_VA which
was intended to mean "driver only supports VA" but had been understood
as "driver supports both PA and VA" by most net drivers and used to let
dpdk processes to run as non root (which do not have access to physical
addresses on recent kernels).
The check on physical addresses actually closed the gap for those
drivers. We don't need to mark them with RTE_PCI_DRV_IOVA_AS_VA and this
flag can retain its intended meaning.
Document explicitly its meaning.
We can check that a driver requirement wrt to IOVA mode is fulfilled
before trying to probe a device.
Finally, document the heuristic used to select the IOVA mode and hope
that we won't break it again.
Fixes: 703458e19c ("bus/pci: consider only usable devices for IOVA mode")
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Tested-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Add stats functions to track what is happening in the driver, and put
unit tests to check those.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Allow initializing a driver instance. Include selftest to validate these
functions.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Add in the "info_get" function to the driver, to allow us to query the
device. This allows us to have the unit test pick up the presence of
supported hardware or not.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Add the create/destroy driver functions so that we can actually allocate
a rawdev and destroy it when done. No rawdev API functions are actually
implemented at this point.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Add stubs for ioat rawdev driver support in DPDK, specifically:
* makefile and meson build hooks
* initial public header file
* rawdev main C file, with probe and release functions
* release note update announcing the driver
* initial documentation for the new section in the rawdev doc
* unit test stubs for device unit tests
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Jiayu Hu <jiayu.hu@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
