Reduce the default log level for netlink to LOG_INFO. This removes a
number of messages such as
> [nl_iface] dump_sa: unsupported family: 0, skipping
or
> [nl_iface] get_operstate_ether: error calling SIOCGIFMEDIA on vlan0: 22
that are useful for debugging, but not for most users.
Reviewed by: melifaro
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D40062
Add crypto/hash.h and a dummy kernel_connect() needed to compile
the ath11k wireless driver. While I hope we will not actually need
the hash.h fallbacks, kernel_connect() we will have to deal with once
we sort out more QMI bits.
MFC after: 10 days
Fix the sizing of IEEE80211_TX_INFO_DRIVER_DATA_SIZE so that it
also works on 32bit platforms. Otherwise it triggers a compile-time
assertion in ath10k for i386.
Sponsored by: The FreeBSD Foundation
MFC after: 10 days
The two main uses of dev_t are in struct stat and as a parameter of the
mknod system calls.
As of version 2.6.0 of the Linux kernel, dev_t is a 32-bit quantity
with 12 bits set asaid for the major number and 20 for the minor number.
The in-kernel dev_t encoded as MMMmmmmm, where M is a hex digit of the
major number and m is a hex digit of the minor number.
The user-space dev_t encoded as mmmM MMmm, where M and m is the major
and minor numbers accordingly. This is downward compatible with legacy
systems where dev_t is 16 bits wide, encoded as MMmm.
In glibc dev_t is a 64-bit quantity, with 32-bit major and minor numbers,
encoded as MMMM Mmmm mmmM MMmm. This is downward compatible with the Linux
kernel and with legacy systems where dev_t is 16 bits wide.
In the FreeBSD dev_t is a 64-bit quantity. The major and minor numbers
are encoded as MMMmmmMm, therefore conversion of the device numbers between
Linux user-space and FreeBSD kernel required.
In between kern_fstat() and translate_fd_major_minor(), another process
having the same filedesc could modify or close fd.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D39763
Get rid of calling Linux stat translation hook and specific to Linux
handling of non-vnode dirfd from kern_statat(),
Reviewed by: kib, mjg
Differential revision: https://reviews.freebsd.org/D35474
Just for future changes of the conditional Linuxulator build. We need
a small refactoring of the MI code to help porting Linuxulator to other
platforms.
The ELF note identifyies the operating-system ABI that the executable
was created for. The note data of the Glibc executable contains the
earliest release number of the Linux kernel that supports this ABI.
As of a current 2.37 version of Glibc, it is 3.2.0 for x86, 3.7.0
for Aarch64.
Glibc does not use this release number and the current kernel's
LINUX_VERSION_CODE to detect kernel features, using fallbacks to known
previous way in case of ENOSYS or something else instead.
A dynamically linked Glibc reads the current kernel's LINUX_VERSION_CODE
from the ELF note in the vDSO or fallback to uname syscall if the vDSO
can't be located and parse the release field in struct utsname. Glibc
uses the current kernel's LINUX_VERSION_CODE for "kernel too old" check.
While here use inlined LINUX_KERNVER for tests to improve readability,
as suggested by emaste@.
MFC after: 1 month
Summary:
Trivial changes for LinuxKPI to use IfAPI. The 'bsdifp' looks unused,
so removed it instead of converting it to a pointer.
Bump __FreeBSD_version for change to struct net_device.
Reviewed by: bz, hselasky
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D39491
Add files needed by ath1?k drivers to linuxkpi/linuxkpi_wlan.
This contain (skeleton) implementations of what is needed to
compile but specifically mhi/qmi/qrtr will need more work for
ath11k.
MFC after: 2 months
Import ISC-licensed driver parts of mediatek/mt76
assumed to be based on Linux wireless-testing at
a02411a5b98612c12be99349836d99f07db12a77 (tag: wt-2022-11-23).
Complement the driver and LinuxKPI with our own (dummy)
implementations of missing parts (util.h and soc/mediatek/)
as well as changes to make compile on FreeBSD with changes
covered by #ifdef (__FreeBSD__) conditions.
Further select updates were applied since the initial import
in order to keep compiling along with other LinuxKPI based
drivers.
For the moment we only target the mt7915 and mt7921 PCI parts.
More may follow in the future.
Firmware is provided by port net/wifi-firmware-mt76-kmod.
Given the lack of full license texts on non-local files this is
imported under the draft policy for handling SPDX files (D29226). [1]
Approved by: core (emaste, 2022-04-08) [1]
MFC after: 2 months
In pcie_capability_read_*() always initialize the return value to
avoid warnings of uninitialized values in callers.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D39721
Linux kernel version 5.15 named Trick or Treat is a 22nd LTS release.
Reviewed by: trasz, emaste
Differential Revision: https://reviews.freebsd.org/D39649
MFC after: 1 month
AT_EXECFN has appeared in the 2.6.26 Linux kernel first time.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39647
MFC after: 1 month
AT_RANDOM has appeared in the 2.6.30 Linux kernel first time.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39646
MFC after: 1 month
Export default MINSIGSTKSZ value for the x86 until we do not preserve AVX
registers in the signal context.
Differential Revision: https://reviews.freebsd.org/D39644
MFC after: 1 month
It is identical to noinline and used for documentation reasons.
Required by: drm-kmod 5.15-lts
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D39553
bitmap_to_arr32() copies contents of bitmap to a uint32_t array of bits
Required by: drm-kmod 5.15-lts
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D39552
Commit 3e0856b63f updated
__sg_alloc_table_from_pages to use the same API as linux, but modified
the loop condition when going over the pages in a sg list. Part of the
change included moving the sg_next call out of the for loop and into the
body, which causes an off by one error when traversing the list. Since
sg_next is called before the loop body it will skip the first element
and read one past the last element.
This caused panics when running PRIME with nvidia-drm as the off-by-one
issue causes a NULL dereference.
Reviewed by: bz, hselasky
Differential Revision: https://reviews.freebsd.org/D39628
Fixes: 3e0856b63f ("linuxkpi: Fix `sg_alloc_table_from_pages()` to have the same API as Linux")
Move a KASSERT out of a function and make it a CTASSERT with
appropriate comments.
Skeleton implement two tkip functions, still left TODO, initializing
variables with dummy values to quiten compiler warnings. It is
unclear to me if we should still ever properly implement TKIP
compat code at this point. If so the current code gives a good
idea what needs to be done in addition to allocating references
to real state along with keyconf.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Rather than using ACCESS_ONCE() in READ_ONCE() add a missing cast
to const in order to satisfy -Wcast-equal by gcc.
Sadly we cannot do the same to WRITE_ONCE() which still is very
noisy.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D39706
We are asserting that two values from different enums are the same.
gcc warns about these. Cast the values to (int) to avoid the warning.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Harmonize sk_buff_head and sk_buff further and fix -Warray-bounds
warnings reports by gcc. At the same time simplify some code by
re-using other functions or factoring some code out.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Expect that drivers call into the network stack with the net epoch
entered. This has already been the fact since early 2020. The net
interrupts, that are marked with INTR_TYPE_NET, were entering epoch
since 511d1afb6b. For the taskqueues there is NET_TASK_INIT() and
all drivers that were known back in 2020 we marked with it in
6c3e93cb5a. However in e87c494015 we took conservative approach
and preferred to opt-in rather than opt-out for the epoch.
This change not only reverts e87c494015 but adds a safety belt to
avoid panicing with INVARIANTS if there is a missed driver. With
INVARIANTS we will run in_epoch() check, print a warning and enter
the net epoch. A driver that prints can be quickly fixed with the
IFF_NEEDSEPOCH flag, but better be augmented to properly enter the
epoch itself.
Note on TCP LRO: it is a backdoor to enter the TCP stack bypassing
some layers of net stack, ignoring either old IFF_KNOWSEPOCH or the
new IFF_NEEDSEPOCH. But the tcp_lro_flush_all() asserts the presence
of network epoch. Indeed, all NIC drivers that support LRO already
provide the epoch, either with help of INTR_TYPE_NET or just running
NET_EPOCH_ENTER() in their code.
Reviewed by: zlei, gallatin, erj
Differential Revision: https://reviews.freebsd.org/D39510
Handling of the CLOSE_RANGE_UNSHARE flag is not implemented due to
difference in fd unsharing mechanism in the Linux and FreeBSD.
Reviewed by: mjg
Differential revision: https://reviews.freebsd.org/D39398
MFC after: 2 weeks
Split up the lhw lock and the scan lock. The latter is a mtx
while the former changes from mtx to sx as mac80211 downcalls may
sleep (and the ic lock is not usable in that case either and a larger
project to fix).
This will also enforce some lookups under lock (mostly scan) as well
as general protection for more compat code and avoid a possible
deadlock with one of the upcoming callbacks from driver into the
compat code.
Sponsored by: The FreeBSD Foundation
MFC after: 7 days
- Mark assert dummy variables as __unused.
- Use a dummy (void) cast of the flags argument passed to
spin_unlock_irqrestore so it gets treated as used.
Reviewed by: manu, hselasky
Differential Revision: https://reviews.freebsd.org/D39349
Rather than printing ic_name ourselves (or not at all) use ic_printf()
as a common function from net80211 where possible.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Those adds a new devres and will exectute some function on release.
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D39142
Sponsored by: Beckhoff Automation GmbH & Co. KG
