Add a version of no_printk(), which seems to be there to have format
string checking while never calling the printk. It seems a very weird
thing and it needs a return code and for some reason my initial
while (0) { } version hadn't worked while porting over new code but
could have been further downstream format string problems.
if (0) seems to do the job though I would have expected that to more
likely simply get optimised out without any futher format checking.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46463
Add an implementation of eth_hdr() needed by a wireless driver.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46462
Used by an updated wireless driver.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46461
Add a get_random_u8() implementation following the u36 and u64 versions.
We'll likely want to macro-ify them in the future and add all the types
which makes sense just to be done.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46464
When it's a I/O failure, we can still send admin commands. Separate out
the admin failures and flag them as such so that we can still send admin
commands on half-failed drives.
Fixes: 9229b3105d (nvme: Fail passthrough commands right away in failed state)
Sponsored by: Netflix
They are functionally equivalent, but the updated form mirrors the tests
in sys/net/ethernet.h and avoids confusion.
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21037
disable hdmi_audio_infoframe_pack_for_dp function for now as it depends
on not imported yet drm sources and is not used by drm-kmod.
Reviewed by: manu
Sponsored by: Serenity CyberSecurity, LLC
Differential Revision: https://reviews.freebsd.org/D46224
In order to allow the allocator to change in the future move it into
the implementation file from being an inline function in the header.
While here factor out the size calculation and add a comment as-to why
this is done. We will need the size (_s) in the future to make a
decision on how to allocate.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D45815
Trying to use lindebugfs for debugging wirless drivers two issues
became apparent:
(a) a panic in lindebugfs calling a hard coded release function if the
caller had not provided one. This seems to be based on assumptions
that no longer hold up. Remove the hard coded release function to
prevent panics.
(b) In LinuxKPI simple_read_from_buffer() would call copy_to_user() but
buffers weren't setup for this (lindebugfs copies data from its
own buffer) and then pseudofs will do another copyout to the user
on this; remove the copy_to_user() and simply copy the data over
to the provided buffer; this works for as long as the only consumers
remain debugfs callers (which currently seems to be the case).
[the only out-of-tree consumers I am aware off are two drm-kmod
drivers/gpu/drm/amd/pm/* debugfs functions I cannot test].
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Tested by: jfree
Differential Revision: https://reviews.freebsd.org/D45755
If IEEE80211 debugging is turned on in kernel configs also turn on
LinuxKPI 802.11 and SKB debugging (sysctls) to have them available.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D45820
pci_iomap_range creates a virtual mapping cookie for a PCI BAR.
As compared with pci_iomap it got extra offset parameter.
Sponsored by: Serenity CyberSecurity, LLC
MFC after: 1 week
Reviewed by: manu, bz
Differential Revision: https://reviews.freebsd.org/D45904
acpi_dev_get_first_match_dev returns the first match of ACPI device
and acpi_device_handle returns its ACPI handle.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D45847
It finds out if a given PCI device matches a given pci_id table.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D45846
devm_device_add_group creates a managed attribute group for a device.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D45845
__diag macros turn individual warnings and errors on and off locally,
depending on version of compiler. Add dummy implementation as drm-kmod
set warnings separately for each file.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: manu, emaste
Differential Revision: https://reviews.freebsd.org/D45842
and dummy num_possible_nodes() implementation.
We do not fully support NUMA in LinuxKPI yet.
Sponsored by: Serenity CyberSecurity, LLC
MFC after: 1 week
Reviewed by: manu, bz
Differential Revision: https://reviews.freebsd.org/D45613
This include prevents usage of any kernel.h helpers in sched.h and
all of dependencies. Linux does not have it too.
Fix building of kernel and drm-kmod after than.
Sponsored by: Serenity CyberSecurity, LLC
MFC after: 1 week
Reviewed by: manu, bz
Differential Revision: https://reviews.freebsd.org/D45692
Linux has a header file that defines an ilog2 function and some simple
functions/macros that use it: roundup_pow_of_two, is_power_of_2,
rounddown_pow_of_two, and order_base_2. This change moves three of
those simple functions (all but is_power_of_2) from linuxkpi to
libkern. It also deletes a few implementations of these functions
that have previously been copied into code for various device drivers,
so that they can use the libkern version. The is_power_of_2 macro was
not moved because powerof2 in param.h provides almost the same service
already (except that they disagree about whether 0 is a power of two).
Since the linux definitions of these functions were copied into
FreeBSD 11 years ago, linux has improved them, and this change
provides those improvements. In particular, a giant table of log
values for evaluating ilog2 for constant values is no longer
necessary.
Reviewed by: alc, markj (previous version)
Differential Revision: https://reviews.freebsd.org/D45536
Rather than using the values and leaving net80211 names in a comment
define the LinuxKPI IEEE80211_HT_CAP_* to the net80211 IEEE80211_HTCAP_*
names. That way errors like the one fixed in 3e0915b7b6 are less
likely to happen.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Add the SET_SYSTEM_SLEEP_PM_OPS() by factoring some other macro code
out in order to set the suspend/resume functions when the struct is
already given. Such is the case in iwlwifi d3.
Also add an initial implementation of device_can_wakeup(). Though
this is likely all we need we have no way of setting the flag for it
yet so leave a pr_debug() and a comment there as well. Until we want
to support WoWLAN this is likely not needed for wireless.
Doing it the proper way checking a bool in 'struct dev_pm_info' would
change 'struct device' and with that 'struct pci_dev' and break the
KBI. In favour of mergeability this version does not implement the
full functionality yet.
Both help to make an updated iwlwifi d3 compile.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D45358
IEEE80211_HT_CAP_RX_STBC was set to 0x100 instead of 0x300.
Correct to get the expected behavior.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Fixes: b0f7376822 LinuxKPI: 802.11 header updates
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D45506
from linux/kernel.h to match Linux and
allow direct linux/kstrtox.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45454
It returns absolute value of the difference between the arguments.
Add LinuxKPI version check as the macro was moved from drm-kmod to
linux/math.h in Linux kernel commit 46f12960aad (6.6 timeframe).
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz, emaste
Differential Revision: https://reviews.freebsd.org/D45453
To match Linux and allow direct linux/math.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45452
It returns the minimum that is not zero, except both equals to zero.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz, emaste, ssaxena
Differential Revision: https://reviews.freebsd.org/D45450
Differential Revision: https://reviews.freebsd.org/D45451
To match Linux and allow direct linux/minmax.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45449
'cond' in WARN_ON need be bracketed,
otherwise it is wrong for multiple conditions.
Reviewed by: wulf
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D44604
The kernel source contains several definitions of an ilog2 function;
some are slower than necessary, and one of them is incorrect.
Elimininate them all and define an ilog2 macro in libkern to replace
them, in a way that is fast, correct for all argument types, and, in a
GENERIC kernel, includes a check for an invalid zero parameter.
Folks at Microsoft have verified that having a correct ilog2
definition for their MANA driver doesn't break it.
Reviewed by: alc, markj, mhorne (older version), jhibbits (older version)
Differential Revision: https://reviews.freebsd.org/D45170
Differential Revision: https://reviews.freebsd.org/D45235
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste (earlier version, found another two)
Differential Revision: https://reviews.freebsd.org/D45386
Add FIELD_PREP_CONST() like FIELD_PREP() without any extra checks likely
expected on this version in Linux. This is called by an updated wireless
driver.
Sposnored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D45180
Add kvmemdup() as a variant of kmemdup(). While currently it could
just call kmemdup() we duplicate the code and use kvmalloc() in case
someone will change the implementation of kvmalloc/kvfree in slab.h.
This is used by an updated wireless driver.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D45181
Some linux code re-init some spinlock so add MTX_NEW to mtx_init.
Reported by: David Wolfskill <david@catwhisker.org>
Fixes: ae38a1a1bf ("linuxkpi: spinlock: Simplify code")
THIS_MODULE is used to differentiate modules on Linux. We currently
completely stub out any Linux struct module usage, but THIS_MODULE
is still used to populate the "owner" fields of various drivers.
Even though we don't actually dereference these "owner" fields they
are still used by drivers to check if devices/dmabufs/etc come
from different modules. For example, during DRM GEM import some
drivers check if the dmabuf's owner matches the dev's owner. If
they match because they are both NULL drivers may incorrectly think
two resources come from the same module.
This adds a general purpose __this_linker_file which will point to
the linker file of the module that uses it. We can then use that
pointer to have a valid value for THIS_MODULE.
Reviewed by: bz, jhb
Differential Revision: https://reviews.freebsd.org/D44306
