LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards

MFC after: 1 week
Reviewed by: bz, emaste, hselasky, manu
Differential Revision: https://reviews.freebsd.org/D33562

(cherry picked from

LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards

MFC after: 1 week
Reviewed by: bz, emaste, hselasky, manu
Differential Revision: https://reviews.freebsd.org/D33562

(cherry picked from commit 307f78f3ed90a4145eeb2c8cc79bc95b2666f57a)

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LinuxKPI: Remove FreeBSD struct resource from all LKPI headers

except linux/pci.h to avoid conflicts with Linux version.
This allows to #define resource in drm-kmod globally and strip some #ifdef-s

LinuxKPI: Remove FreeBSD struct resource from all LKPI headers

except linux/pci.h to avoid conflicts with Linux version.
This allows to #define resource in drm-kmod globally and strip some #ifdef-s

Reviewed by: hselasky, manu
Differential revision: https://reviews.freebsd.org/D31673

(cherry picked from commit 66ea390652d2ede405b43c168157986bd2b52bb9)

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direct commit: fix KBI for pci_dev

Move all the new elemenets to the end of the structure for 13. We
allocate this inside the linuxkpi code, so the size isn't enccoded in
client modules. However, th

direct commit: fix KBI for pci_dev

Move all the new elemenets to the end of the structure for 13. We
allocate this inside the linuxkpi code, so the size isn't enccoded in
client modules. However, the offsets to the different fields are
encoded. Tihs modifies 04456f711853, 40a215e38a4d, and 3a606aadf2e7
and will likely create merge conflicts there (and that's a good thing
since the elements need to be moved to the end of the structure when
merging).

Tweak irq_ent to be binary compatible. Since this is inlined into the
clients, all clients have to agree on the irq_ent offsets.

Restore visibility to linux_kmem_cache_free_rcu
linux_kmem_cache_free_rcu was made static in 10235ad0567f, however
client drivers depended on calling it directly. Make it visible again to
restore the 13.0-Release KBI for linuxkpi.

Bump FreeBSD_version to 1300515 for restoration of 13.0 KBI. Since this
commmit changes the linuxkpi KBI (this time back to 13.0 release to
restore the status quo of), you'll need to recompile everything that
uses it (you needed to earlier as well, but those were silent
recompilation events). The plus side is that our packages (built using
13.0) for drm-kmod 5.4 work again on -stable systems.

Reviewed by: bz, wulf
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D31363

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LinuxKPI: enhance the irq KPI for managed and threaded operations.

Move request_irq() to an internal function which serves request_irq()
and the newly added request_threaded_irq() and devm_request_t

LinuxKPI: enhance the irq KPI for managed and threaded operations.

Move request_irq() to an internal function which serves request_irq()
and the newly added request_threaded_irq() and devm_request_threaded_irq().
Likewise factor out parts of free_irq() to also be used with
devm_free_irq(). Add the storage and call to a thread_handler in case
of IRQ_WAKE_THREAD.
This is needed for the iwlwifi driver.

Sponsored by: The FreeBSD Foundation
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30549

(cherry picked from commit d16b6cb17837162d685c960deb28f26f716fa440)

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LinuxKPI: add irq_set_affinity_hint()

Add an implementation for irq_set_affinity_hint() to linux/interrupt.h
and include linux/hardirq.h for synchronize_irq() as needed by
wireless drivers.

Sponsor

LinuxKPI: add irq_set_affinity_hint()

Add an implementation for irq_set_affinity_hint() to linux/interrupt.h
and include linux/hardirq.h for synchronize_irq() as needed by
wireless drivers.

Sponsored by: The FreeBSD Foundation
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30427

(cherry picked from commit 602e4e433d3e7dbb03d4fd30a4720a02cdeca6aa)

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linuxkpi: Introduce tasklet_disable_nosync()

This is needed for the drm-kmod 5.5 update.

Reviewed by: hselasky (src)
Differential Revision: https://reviews.freebsd.org/D30024

(cherry picked from

linuxkpi: Introduce tasklet_disable_nosync()

This is needed for the drm-kmod 5.5 update.

Reviewed by: hselasky (src)
Differential Revision: https://reviews.freebsd.org/D30024

(cherry picked from commit 9781105bea58b8bce53ba766850c5f023b34c43c)

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Fix broken DECLARE_TASKLET() macro after r347852.

MFC after: 1 week
Sponsored by: Mellanox Technologies

Implement pci_enable_msi() and pci_disable_msi() in the LinuxKPI.
This patch makes the DRM graphics driver in ports usable on aarch64.

Submitted by: Greg V <[email protected]>
Differential

Implement pci_enable_msi() and pci_disable_msi() in the LinuxKPI.
This patch makes the DRM graphics driver in ports usable on aarch64.

Submitted by: Greg V <[email protected]>
Differential Revision: https://reviews.freebsd.org/D21008
MFC after: 1 week
Sponsored by: Mellanox Technologies

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LinuxKPI: Updates to tasklets for Linux 5.0.

DRM drivers expect tasklets to have a counter for enable/disable calls.
Also, add a few more tasklet locking functions.

This patch is part of D19565

Re

LinuxKPI: Updates to tasklets for Linux 5.0.

DRM drivers expect tasklets to have a counter for enable/disable calls.
Also, add a few more tasklet locking functions.

This patch is part of D19565

Reviewed by: hps
Approved by: imp (mentor), hps
MFC after: 1 week

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Move the IRQ_RETVAL() and irqreturn definitions to irqreturn.h in the
LinuxKPI to be compatible with Linux. No functional change.

MFC after: 1 week
Submitted by: Johannes Lundberg <[email protected]

Move the IRQ_RETVAL() and irqreturn definitions to irqreturn.h in the
LinuxKPI to be compatible with Linux. No functional change.

MFC after: 1 week
Submitted by: Johannes Lundberg <[email protected]>
Sponsored by: Mellanox Technologies

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Add checks for valid IRQ tag before setting up or tearing down an interrupt
handler in the LinuxKPI. This is needed when the interrupt handler is disabled
before freeing the interrupt.

MFC after: 1

Add checks for valid IRQ tag before setting up or tearing down an interrupt
handler in the LinuxKPI. This is needed when the interrupt handler is disabled
before freeing the interrupt.

MFC after: 1 week
Submitted by: Johannes Lundberg <[email protected]>
Sponsored by: Mellanox Technologies

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Implement tasklet_enable() and tasklet_disable() in the LinuxKPI.

MFC after: 1 week
Requested by: Johannes Lundberg <[email protected]>
Sponsored by: Mellanox Technologies

Implement enable_irq() and disable_irq() in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <[email protected]>
Sponsored by: Mellanox Technologies

Add support for LinuxKPI tasklets.

Tasklets are implemented using a taskqueue and a small statemachine on
top. The additional statemachine is required to ensure all LinuxKPI
tasklets get serialized.

Add support for LinuxKPI tasklets.

Tasklets are implemented using a taskqueue and a small statemachine on
top. The additional statemachine is required to ensure all LinuxKPI
tasklets get serialized. FreeBSD taskqueues do not guarantee
serialisation of its tasks, except when there is only one worker
thread configured.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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Prefix some _pci_xxx() functions in the Linux KPI with linux_ and make
sure the IRQ number used by these functions is unsigned.

Sponsored by: Mellanox Technologies
MFC after: 1 week

LinuxKPI style changes:
- Properly prefix internal functions with "linux_" instead of only a
single underscore to avoid future namespace collisions.
- Make some functions global instead of inline t

LinuxKPI style changes:
- Properly prefix internal functions with "linux_" instead of only a
single underscore to avoid future namespace collisions.
- Make some functions global instead of inline to ease debugging and
to avoid unnecessary code duplication.
- Remove no longer existing kthread_create() function's prototype.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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Make all the LinuxKPI include files compile standalone.

Sponsored by: Mellanox Technologies

Finish process of moving the LinuxKPI module into the default kernel build.

- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
its subfolders.
- Update sys/conf/files and some M

Finish process of moving the LinuxKPI module into the default kernel build.

- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
LinuxKPI into the kernel. This was done to keep the build rules for
the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by: np @ (cxgb and cxgbe related changes only)
Sponsored by: Mellanox Technologies

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