This removes all unused bits from linux/netdevice.h and migrates two
inline functions into the mlx4 and ofed code respectively.
This gets the mlx4/ofed (struct ifnet) specific bits down to 7 lines
in netdevice.h.
Sponsored by: The FreeBSD Foundation
MFC after: 13 days
Reviewed by: hselasky, kib
Differential Revision: https://reviews.freebsd.org/D30461
The second 'linuxcommon' line was added by c66f5b079d
but Linuxulator's modules dependend on 'linux_common'.
To avoid such mistakes in the future rename moduledata name and module
name to 'linux_common' and retire 'linuxcommon' line.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D30409
MFC after: 2 weeks
Introduce net/addrconf.h with an implementation to
addrconf_addr_solict_mult() used by WiFi drivers.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30416
Add DECLARE_EWMA() which expands to a per-name EWMA implementation
as used by multiple wireless drivers.
Sposnored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky, cperciva, dwmalone
Differential Revision: https://reviews.freebsd.org/D30415
Add linux/bsearch.h which only includes libkern.h as the sort(9)
functions seem to be compatible.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30417
Add a few more le<n>_{tp,add}_cpu*() #defines/functions found in
wireless drivers. While here fill most of the combinatorics gaps
and also add the remaining combinations [1].
Suggested by: emaste [1] (for one part)
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30418
Add a definition for SMP_CACHE_BYTES and while here include sys/param.h
for CACHE_LINE_SIZE as otherwise code might not compile standalone.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30419
Add linux/cpu.h for cpumask_*() functions found in wireless drivers
and make sure cpu_online_mask is always initialised.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30421
Add linux/devcoredump.h with stub implementation of dev_coredumpv()
and dev_coredumpsg() which only free the passed in SG table as needed
for iwlwifi.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30423
Replace the implementation for ether_addr_equal() with
ether_addr_equal_unaligned() and add a define for ether_addr_equal()
pointing to the now ether_addr_equal_unaligned() implementation.
This way ether_addr_equal_unaligned() cannot be broken by accident [1].
Suggested by: emaste [1]
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30425
Add a dummy struct inet6_dev {}; to net/if_inet6.h. This is currently
not used for anything but in a declaration. Just needs to be there.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30426
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
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30427
Add header files for struct and accessors for IPv4, UDP, and TCP.
Only parts of the fields of the structs have been seen while working
on wireless drivers. The remaining field names are filled up with
the FreeBSD field names for now. If you have insights into their
correct naming in Linux, feel free to adjust.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30428
Include linux/bitops.h for a definition of BITS_PER_LONG so that this
file can be used independently.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30429
This is used by wireless drivers. Use the time_after() macro as
done for the "after_eq" version.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30430
BUILD_BUG_ON() can be used inside functions where the definition to
CTASSERT() (_Static_assert()) seems to not work.
Go back to an old-style CTASSERT() implementation but also add a
variable dclaration to avoid "unsued typedef" errors and dummy-use
the variable to avoid "unusued variable" errors. Given it is all
self-contained in a block and not used outside this should be
optimised away.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30431
Add yet another version of the various module_param_named() use cases.
This one deals with "charp".
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30433
Add more definitions for various PCI uses to linux/pci.h. Almost all
are defined to their FreeBSD counterparts which are described there.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30434
Add a define for rcu_dereference_check() to rcu_dereference_protected()
which ignores the check argument. Our lockdep compat implementation
for use cases found in iwlwifi would return 1 anyway.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30436
Add linux/stringify.h as directly included by drivers. Remove the
definitions from compiler.h and include the new header in places
where the stringify macros are already used without linuxkpi.
I have adjusted the Copyright of the new file according to the commit
originaly adding the macros (99e690772a).
Sposnored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30440
Add a placeholder struct for guid_t which is needed by ACPI consumers
in at least one wireless driver.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30439
the thread destructor is invoked. Catch that window by waiting for all
task_struct allocations to be returned before freeing the UMA zone in the
LinuxKPI. Else UMA may fail to release the zone due to concurrent access
and panic:
panic() - Bad link element prev->next != elm
zone_release()
bucket_drain()
bucket_free()
zone_dtor()
zone_free_item()
uma_zdestroy()
linux_current_uninit()
This failure can be triggered by loading and unloading the LinuxKPI module
in a loop:
while true
do
kldload linuxkpi
kldunload linuxkpi
done
Discussed with: kib@
MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking
Remove all the 'entry' and 'return' probes; they clutter up the source
and are redundant to FBT.
Reviewed By: dchagin
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30040
It writes the core of live stopped process to the file descriptor
provided as an argument.
Based on the initial version from https://reviews.freebsd.org/D29691,
submitted by Michał Górny <mgorny@gentoo.org>.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D29955
This is needed by the drm-kmod 5.5 update and is similar in logic to the
existing wait_event_killable macro.
Reviewed by: hselasky, manu
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D29987
Only allocate struct_mm after we checked that other threads do not carry
useful mm_struct. If they don't, drop process lock, allocate, and recheck.
Note that for M_NOWAIT allocations we could avoid dropping process lock,
but I do not think that this increased complexity is useful.
Reviewed by: hselasky
Sponsored by: Mellanox Technologies/NVidia Networking
MFC after: 1 week
Create and use zones for task and mm. Reserve items in zones based on the
estimation of the max number of interrupts in the system. Use M_USE_RESERVE
to allow to take reserved items when allocation occurs from the interrupt
thread context.
Of course, this would only work first time we allocate the task for
interrupt thread. If interrupt is deallocated and allocated anew,
creating a new thread, it might be that zone is depleted. It still
should be good enough for practical uses.
Reviewed by: hselasky
Sponsored by: Mellanox Technologies/NVidia Networking
MFC after: 1 week
This is required for the current Arch Linux binaries to work.
PR: 254112
Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D29218
Without it, Qt5 apps from Focal fail to start, being unable to load
their plugins. It's also necessary for glibc 2.33, as found in recent
Arch snapshots.
PR: 254112
Reviewed By: kib
Sponsored by: The FreeBSD Foundation, EPSRC
Differential Revision: https://reviews.freebsd.org/D28192
