Note that only the the hardware round robin port arbitration capability
is being used.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Until now iterable sections APIs have been part of the toolchain
(common) headers. They are not strictly related to a toolchain, they
just rely on linker providing support for sections. Most files relied on
indirect includes to access the API, now, it is included as needed.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This allows finding the correct PCIe device when multiple devices
have the same vendor-id/device-id but differ in the class-rev register
Signed-off-by: Grant Ramsay <gramsay@enphaseenergy.com>
These functions are no longer needed with the centralized framework for
scanning for available PCIe devices and discovering their BDF value
through it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This adds a generic API to be used for scanning for available PCI
endpoints. It takes a more detailed approach than the "brute force"
based scanning that's so far been used in Zephyr, buy inspecting the
host controller node and bridge nodes, and only scanning for busses and
devices that are actually expected to exist.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
PCI(e) host controllers behave in different ways (some more buggy than
others) in what value they use to indicate that an endpoint is not
present. In most cases the VID/DID is all ones (PCIE_ID_NONE) but in
others it's all zeroes, and some may even have the VID all zeroes and
the DID all ones, or vice-versa.
Add a macro to easily test for all these possibilities. The "all ones"
and "all zeroes" cases have been verified to exist on actual HW
supported by Zephyr, however the test for the mixed cases is simply
based on what Linux considers valid values (drivers/pci/probe.c in the
Linux kernel tree).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The BDF values can differ on the same platform, based on e.g. BIOS
configuration, and in the case of qemu the command line parameters. It's
therefore more reliable to always look up the BDF value based on the
known Vendor and Device IDs.
This patch introduces such a framework, and allows the incremental
update of PCIe drivers to start taking advantage of it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
It was previously written as regular members of a struct, which
allows the C compiler to do things the way it wants. On ARM64, gcc
would typically write field by pairs (`STP`), which
would generate aborts.
By using `sys_write32`, we force it the right way.
Signed-off-by: Henri Xavier <datacomos@huawei.com>
MISRA C:2012 Rule 7.2 (A `u' or `U' suffix shall be applied to all
integer constants that are represented in an unsigned type)
Added missing `U' suffixes in constants that are involved in the
analyzed build, plus a few more not to introduce inconsistencies
with respect to nearby constants that are either unused in the
build (but implicitly unsigned) or are used and are immediately
converted to unsigned.
Signed-off-by: Abramo Bagnara <abramo.bagnara@bugseng.com>
In order to bring consistency in-tree, migrate all includes within
include directory to the new prefix <zephyr/...>. Note that the
conversion has been scripted, refer to zephyrproject-rtos#45388 for more
details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Move include paths and add new target_include_directories to support
backwards compatibility:
* /include -> /include/zephyr
example: <irq.h> -> <zephyr/irq.h>
Issue #41543
Signed-off-by: Yuval Peress <peress@google.com>
