Sort out some (though not yet all) changes needed for CONFIG_PM_SLEEP
and respectively WoWLAN support (so we can compile it in). This is
just one further step towards proper suspend/resume support.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit b42c339c59fd00f2d97f6854b17b54b340019d0c)
Define the last missing PN length and for consistency use them
in struct ieee80211_key_seq (even though a 6 is a 6 is a 6).
Sponsored by: The FreeBSD Foundation
(cherry picked from commit c8a6676eb652b59fee545dc3e24ffec21bd0cd8d)
Move the implementation of print_hex_dump() into linux_compat.c as
lkpi_hex_dump() taking an extra function pointer and argument.
Add two internal wrappers for printf and sbuf_printf to get a common
function definition (sbuf_printf takes the extra argument).
Use these to implement print_hex_dump() and the newly added
seq_hex_dump().
This allows us to re-use the same implementation of print_hex_dump()
for both functions without duplicating the code.
Initial implementation: D49381 by dumbbell
Sponsored by: The FreeBSD Foundation
Reviewed by: dumbbell
Differential Revision: https://reviews.freebsd.org/D49637
(cherry picked from commit 4359672e656af5e6758d0aae147212e58f445f5b)
Move kfree() into slab.c as an implementation and hide the private
function linux_kfree_async() entirely.
Remove a ; at the end of a define and sort some defines into place.
Remove extern from function declarations and move the closer to where
they belong.
Sort the functions into "base allocator/free" functions--these have
an implementation in slab.c and are ensuring contiguous physical
memory allocations.
Followed by inline functions using these base allocators to implement
their functionality; vmalloc/kvalloc, and misc functions.
Sponsored by: The FreeBSD Foundation
Reviewed by: dumbbell
Differential Revision: https://reviews.freebsd.org/D49572
(cherry picked from commit a3e6f97bf57c1d323487d07369aec66542f995ce)
Implement krealloc_array() using krealloc(). Implement krealloc()
doing the various size checks ourselves and use realloc() or kmalloc()
depending on old and new allocation sizes.
This way we can ensure that allocated memory stays physically contiguous.
Sponsored by: The FreeBSD Foundation
Suggested by: jhb (see D46657)
Reviewed by: jhb, markj
Differential Revision: https://reviews.freebsd.org/D49571
(cherry picked from commit 1c95d401ebe5075ebb38b57638830713a496f107)
With mallocarray() we cannot guarantee that any size larger than
PAGE_SIZE will be contiguous. Switch kmalloc_array() and
kmalloc_array_node() to use __kmalloc()/lkpi___kmalloc_node() as their
underlying implementation which now does provide that guarantee.
Likewise adjust kcalloc_node() to use kmalloc_array_node().
This means we only have two (plain + _node) underlying allocation
routines for the entire category of functions.
Also adjust kvmalloc() and kvmalloc_array() to be a "mirrored"
implementation to their non-v counterparts. These may return
non-contiguous memory so can use malloc().
Sponsored by: The FreeBSD Foundation
Reviewed by: jhb
Extra thanks to: jhb for helping sorting this out
Differential Revision: https://reviews.freebsd.org/D46657
(cherry picked from commit 1c81ebec74d8a71c770f7835d3bc6e02c13467a0)
This is to fix slowdowns with drm-kmod that get worse over time as
physical memory become more fragmented (and probably also depending on
other factors).
Based on information posted in this bug report:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277476
By default, linux_alloc_pages() retries failed allocations by calling
vm_page_reclaim_contig() to attempt to free contiguous physical memory
pages. vm_page_reclaim_contig() does not always succeed and calling it
can be very slow even when it fails. When physical memory is very
fragmented, vm_page_reclaim_contig() can end up being called (and
failing) after every allocation attempt. This could cause very
noticeable graphical desktop hangs (which could last seconds).
The drm-kmod code in question attempts to allocate multiple contiguous
pages at once but does not actually require them to be contiguous. It
can fallback to doing multiple smaller allocations when larger
allocations fail. It passes alloc_pages() the __GFP_NORETRY flag in this
case.
This patch makes linux_alloc_pages() fail early (without retrying) when
this flag is passed.
[olce: The problem this patch fixes is longer and longer GUI freezes as
a machine's memory gets filled and becomes fragmented, when using amdgpu
from DRM kmod 5.15 and DRM kmod 6.1 (DRM kmod 5.10 is unaffected; newer
Linux kernel introduced an "optimization" by which a pool of pages is
filled preferentially with contiguous pages, which triggered the problem
for us). The original commit message above evokes freezes lasting
seconds, but I occasionally witnessed some lasting tens of minutes,
rendering a machine completely useless.
The patch has been reviewed for its potential impacts to other LinuxKPI
parts and our existing DRM kmods' code. In particular, there is no
other user of __GFP_NORETRY/GFP_NORETRY with Linux's alloc_pages*()
functions in our tree or DRM kmod ports.
It has also been tested extensively, by me for months against 14-STABLE
and sporadically on -CURRENT on a RX580, and by several others as
reported below and as is visible in more details in the quoted bugzilla
PR and in the initial drm-kmod issue at
https://github.com/freebsd/drm-kmod/issues/302, on a variety of other
AMD GPUs (several RX580, RX570, Radeon Pro WX5100, Green Sardine 5600G,
Ryzen 9 4900H with embedded Renoir).]
PR: 277476
Reported by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: olce
Tested by: many (olce, Pierre Pronchery, Evgenii Khramtsov, chaplina, rk)
MFC after: 2 weeks
Relnotes: yes
Sponsored by: The FreeBSD Foundation (review and part of testing)
(cherry picked from commit 718d1928f8748fe4429c011296f94f194d63c695)
This fixes a black screen issue with the i915 DRM driver from Linux v6.8
Fixes: c4e0746e7d ("LinuxKPI: Add helper macros IS_ALIGNED and DIV_ROUND_DOWN_ULL.")
Pull request: https://github.com/freebsd/freebsd-src/pull/1612
(cherry picked from commit ef037a028af7cc331e36ca6c8e2eb5612cdb1130)
Make a pass over skbuff.h:
- implement some missing bits,
- sprinkle some const,
- add locking and read/write_once calls as needed to provide
synchronization as expected by Linux,
- fix some typos,
- remove return from void functions,
- adjust tracing macros.
Sponsored by: The FreeBSD Foundation
PR: 283903 (rtw88 skb leak)
Tested by: Guillaume Outters (guillaume-freebsd outters.eu)
Tested by: oleg.nauman gmail.com
Differential Revision: https://reviews.freebsd.org/D49101
(cherry picked from commit 2ab4a41956159e7c974979693cb0b13cf552128e)
Implement cfg80211_chandef_create() to work with HT. Update enum
with HT channel types. When calling the function from LinuxKPI 802.11
code, pass in NL80211_CHAN_HT20 if HT is supported rather than NO_HT.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 11450726d3cf8d76d2113d7cabe995f8ef31ec5a)
Implement the mac80211 (*sta_statistics) to obtain station statistics.
Fix up struct station_info for that.
Add supporting funtions to decode station_info and rate_info_bw fields
to make the output more usable to human beings.
Add a per-VIF (VAP) sysctl to export that information. This is mostly
used for now to see what the driver/fw thinks about its TX rate.
We should later gather this information in different ways and pass it
to net80211 to export it to user space so we can finally have nice
station information (also for the non-AP side).
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 408394185fe9be0c158189b7671bde316ac14ac9)
rtw88 seems to have an skb leak still.
Add a WARN_ONCE to __skb_queue_purge() just to make sure there is no
glitch due to missing locking.
Also add a rolling error reporting for skb allocation failures in
LinuxKPI to gather some more information if possible about queue
states.
This is a corrected version of what was initially part of D48474.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit bcf1d8ee355213eef4a125c0b8518f1cb4f35df4)
(cherry picked from commit 1432e0f20ccde8eaa23d3d3e20fca2989cd344b6)
Given I was looking at the struct make it more packed at the beginning
at least. In fact it did not shrink but the tx_time_est got expanded.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 470aaf42c3c0661821a8744ae7c29b096adb4aa3)
Convert a lot more LinuxKPI rx_status fields to net80211 rx_stats
bits for as much as we can see fit. Factor the entire logic out
into its own function as it got quite long.
Now only net80211 needs to start using more of these values and
report them.
Also fix some related fields and struct definitions in LinuxKPI.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 49010ba706d39fba0d8bc128d96e6122e65eb8ad)
Add the mask and shift for the VHT Extended NSS BW Support field.
Document them in net80211 and further related bitmasks in LinuxKPI.
Sponsored by: The FreeBSD Foundation
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D48975
(cherry picked from commit 75fb66d8241d0487baf482c975c1de3b55d9a315)
net80211 node ni_chw currently encodes the channel width as Mhz number.
LinuxKPI 802.11 uses enum ieee80211_sta_rx_bw for the same.
Rather than keeping the "20" and "40" throughout the code (eventually
expanded to 80/160/320) switch them over to use the enum throughout.
Once we get to 320Mhz channel widths we would otherwise also need to
extend the uint8_t in struct ieee80211_node; making
enum ieee80211_sta_rx_bw __packed allows us for lots more channel
widths without breaking the KBI.
Sponsored by: The FreeBSD Foundation
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D47891
(cherry picked from commit ca389486a9599768e0ba69dca13c208020623083)
(cherry picked from commit 2c8b0d6205f6f98855773e3a82640b50abb2f2f6)
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
(cherry picked from commit c8b0c33b03ac072413b27bed2bdae2ae27426f3a)
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
(cherry picked from commit b0056b31e90029553894d17c441cbb2c06d31412)
No functional change (intended).
Reviewed by: kib
MFC after: 4 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D48497
(cherry picked from commit 9b7157c690723279d448fc7ea9c1f9374ad4511a)
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
(cherry picked from commit 28a59100b54ff245a45fbd328266266f1c14eb8c)
Add sys/sytm.h for __diagused which unbreaks compilation of
drm-kmod 5.10-lts on main.
Sponsored by: The FreeBSD Foundation
Reported by: Evgenii Khramtsov
PR: 282479
Fixes: 5c92f84bb607
(cherry picked from commit 9b2705121ba230bf71a1509cc928f0481dfbf31c)
Bring ing the LinuxKPI 802.11 compat bits which are not altering
the mac80211 ops KPI.
* Add various functions for driver updates.
* Add functions (some compat code to I assume cleanup some
mac80211 ops) emulating chanctx changes doing (*config) updates.
* Adjust structs and defines.
* Deal with an enum growing more than 32 bits in printf.
* Add a mtx to struct wiphy which is exposed to the drivers.
Handle initialization and destruction for now.
* Implementation of wiphy_work and wiphy_delayed_work.
* Set was_assoc for deassoc/deauth in prep_tx_info.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit ac1d519c01ca8beb59f27962c7052d09a03f72c8)
Update rcu_dereference_{check,protected}() to call the check and log
once if it fails and if the RCU debug sysctl is turned on.
Also add proper checks for conditions passed in to these functions.
For that implement linux_rcu_read_lock_held() (lots of help from wulf).
(While here also remove extraneous extern for function prototypes).
Update lockdep_is_held() to always be an inline function with argument
annotation so that we do no longer have unused variables
in callers which only call lockdep_is_held().
Sponsored by: The FreeBSD Foundation
Reviewed by: wulf
Differential Revision: https://reviews.freebsd.org/D46842
(cherry picked from commit 5c92f84bb607c692ce4fa762a7a3c4b86a2fa281)
PCI_IRQ_LEGACY was added in 366d68f283 (likely) for rtw88 only.
The define now got renamed and I cannot find any other use but
rtw88 and rtw89.
We keep the old name as comapt while driver updates are in
progress enabling it defining LINUXKPI_VERSION for the two drivers.
Sponsored by; The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46822
(cherry picked from commit 157e93e0e8138fbaa6ab5d5b20b0c23f903667a6)
Add alloc_netdev_dummy() which is needed by an updated rtw88 driver.
Given we already call linuxkpi_init_dummy_netdev() ourselves allow the
setup function to be NULL to not initialize and start a tasq td twice.
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46802
(cherry picked from commit 105331f658e2f14fb4daa64dcd076c7369505295)
iwlwifi v6.11 started to use guard(). _T in the implementation needs
to be exposed to the driver which uses it in DEFINE_GUARD().
Given this is the first instance of attribute(cleanup) in the tree:
- gcc has support for it since at least 2003-06-04
(0bfa5f65bfb186f10d43304946fd7fcd69988732)
- llvm gained support on 2009-01-31
(d277d790e0f6f23043397ba919619b5c3e157ff3, llvm-svn 63462).
Sponsored by: The FreeBSD Foundation
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46843
(cherry picked from commit fa81baa307da9a0055d7d08f6d141ea310f067ed)
Add time_is_before_jiffies() as needed by iwlwifi from v6.11.
Sponsored by: The FreeBSD Foundation
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46841
(cherry picked from commit 8f9567628cb2ccb335640c4bb044df2ebf45d83a)
Move some ieee8022_{is,has,get}_... functions working on header fields
from mac80211.h to ieee80211.h to avoid problems with #includes.
No functional changes.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 0b325167f60def621536632460caf68e2fab4fb8)
Upstream new defines, enum values, etc. for coming driver updates which
are non-conflicting with the current state.
The only notable change is the rename of the enum ieee80211_ap_reg_power
but the enum name had not been used so far by any driver in the tree
(only in mac80211.h) but an updated version of ath11k does use it so we
need to correct our initial naming.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit c1c989588df67396392edceb0e7e7028abc06c49)
Add new enums to netdevice.h (including one which is referenced but
no value of it is used in a driver so we have to add a "dummy" value
to avoid an empty enum).
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 6ed447b51a9d6cf22aae2dfba6efce3922ae6d57)
Add more fields required by updated wireless drivers to mhi.h.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit c12e3a05252ac9f43a6db379f88e4b4a07c06d46)
Add pci_err() as a wrapper to dev_err() as needed by an updated driver.
Sponsored by: The FreeBSD Foundation
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46660
(cherry picked from commit 01e1131e4a20ea377d580ecce210aa86726e71c6)
Factor out module_pci_driver() from 366d68f283 into a general
module_driver() so other bus attachments can also use the same kind
of macro without duplicating all the lines.
Redefine module_pci_driver() using the new general macro.
No functional changes intended.
Sponsored by: The FreeBSD Foundation
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D46467
(cherry picked from commit f5c7feee7129dc88a2e5dc3ce0a075cb5e4f534a)
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
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46463
(cherry picked from commit 1847e63d63f440cfcb2f4ee2c2ee8990f0272d88)
Add an implementation of eth_hdr() needed by a wireless driver.
Sponsored by: The FreeBSD Foundation
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46462
(cherry picked from commit 273cf7d36336eeed5fc2ad42e5e12a36e36650a0)
Used by an updated wireless driver.
Sponsored by: The FreeBSD Foundation
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46461
(cherry picked from commit 8adb745dc9716e769ef0f7e993cea8a07735d5d8)
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
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D46464
(cherry picked from commit f29e915bc0d216a87f222a208caeb2172c93e4ea)
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
Tested by: jfree
Differential Revision: https://reviews.freebsd.org/D45755
(cherry picked from commit 5668c22a13c6befa9b8486387d38457c40ce7af4)
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
Differential Revision: https://reviews.freebsd.org/D45820
(cherry picked from commit 59d262fe969af5a8a83f0ccd7586c9bd2c8fb1f3)
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
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D45815
(cherry picked from commit 1f7df757017404011732196e65981d9325f7a89f)
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
(cherry picked from commit a1295b24842d209e6bf93a4823193d56ad2db064)
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
(cherry picked from commit c89d94ad5d95fd15e891b2723caae8a6104ee153)
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
(cherry picked from commit fcc350c375f776318d0da8021109631492ab9261)
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
(cherry picked from commit 3e90716331cdbdee7465213d389a33f90dad11cf)
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
(cherry picked from commit 5b1171a0b75fc88bffb5a67b0b02d8d59eb8d5c4)
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
(cherry picked from commit a1181662d3707d8165d7153a0aa5d76ea1ddc11a)
