Alfonso [Mon, 27 Feb 2023 23:19:54 +0000 (16:19 -0700)]
stand: Minor cleanup
Replace a cast '0' for a null pointers with NULL
Replace a 'goto loop' with a do-while loop in ufs and ext2fs.
Cast cp pointer to uintptr_t to test to see if it's aligned rather than long.
[ minor tweaks based on my & hps' review, reworded commit message ]
Reviewed by: imp, hps
Pull Request: https://github.com/freebsd/freebsd-src/pull/547
Evgeni Golov [Mon, 27 Feb 2023 22:50:56 +0000 (15:50 -0700)]
if_re: Generate an address if there is none in the EEPROM
There exists hardware that has no ethernet address burned into
the EEPROM. Loading if_re on such a HW brings the device up
with '00:00:00:00:00:00' as the address, and that doesn't get
you too far in a real network.
Sebastian Huber [Mon, 27 Feb 2023 21:49:10 +0000 (14:49 -0700)]
pps: Round to closest integer in pps_event()
The comment above bintime2timespec() says:
When converting between timestamps on parallel timescales of differing
resolutions it is historical and scientific practice to round down.
However, the delta_nsec value is a time difference and not a timestamp. Also
the rounding errors accumulate in the frequency accumulator, see hardpps().
So, rounding to the closest integer is probably slightly better.
This change introduces a new calculation which is slightly simpler and more
straight forward. Name it B.
Consider the following sample values with a tcount of 2000000100 and a
tc_frequency of 2000000000 (2GHz).
For A, the scale is 9223372036. Then scale * tcount is 18446744994337203600
which is larger than UINT64_MAX (= 18446744073709551615). The result is 920627651984 == 18446744994337203600 % UINT64_MAX. Since all operands are
unsigned the result is well defined through modulo arithmetic. The result of
bintime2timespec(&bt, &ts) is 49. This is equal to the correct result 1000000049 % NANOSECOND.
In hardpps(), both conditional statements are not executed and pps_fcount is
incremented by 49.
For the new calculation B, we have 1000000000 * tcount is 2000000100000000000
which is less than UINT64_MAX. This yields after the division with tc_frequency
the correct result of 1000000050 for delta_nsec.
In hardpps(), the first conditional statement is executed and pps_fcount is
incremented by 50.
This shows that both methods yield roughly the same results. However, method B
is easier to understand and requires fewer conditional statements.
Sebastian Huber [Mon, 27 Feb 2023 21:49:09 +0000 (14:49 -0700)]
pps: Simplify capture and event processing
Use local variables for the captured timehand and timecounter in pps_event().
This fixes a potential issue in the nsec preparation for hardpps(). Here the
timecounter was accessed through the captured timehand after the generation was
checked.
Make a snapshot of the relevent timehand values early in pps_event(). Check
the timehand generation only once during the capture and event processing. Use
atomic_thread_fence_acq() similar to the other readers.
Mark Johnston [Mon, 27 Feb 2023 18:41:58 +0000 (13:41 -0500)]
netmap: Fix compiler warnings in tools
- Remove write-only variables, or hide them in cases where their use is
conditional or commented out.
- Check for errors from cmd_apply() in nmreplay.
- Use ANSI C definitions.
Warner Losh [Wed, 8 Feb 2023 21:20:46 +0000 (14:20 -0700)]
Use 'mixed' links for 'hard' links by default.
emaste suggested this in https://github.com/freebsd/freebsd-src/pull/133
and it works. It will do the right thing by default, and handle the weird
cases 133 was trying to fix.
Warner Losh [Wed, 8 Feb 2023 23:19:49 +0000 (16:19 -0700)]
nanobsd: Better NANO_OBJ if NANO_LAYOUT is set
If NANO_LAYOUT is set, then use /usr/obj/nanobsd.${NANO_NAME}.${NANO_LAYOUT}
instead of the current /usr/obj/nanobsd.${NANO_NAME} to allow multiple layouts
to be built w/o errors due to the time-skew that creates.
Mark Johnston [Mon, 27 Feb 2023 14:52:28 +0000 (09:52 -0500)]
netinet: Remove IP(V6)_BINDMULTI
This option was added in commit 0a100a6f1ee5 but was never completed.
In particular, there is no logic to map flowids to different listening
sockets, so it accomplishes basically the same thing as SO_REUSEPORT.
Meanwhile, we've since added SO_REUSEPORT_LB, which at least tries to
balance among listening sockets using a hash of the 4-tuple and some
optional NUMA policy.
The option was never documented or completed, and an exp-run revealed
nothing using it in the ports tree. Moreover, it complicates the
already very complicated in_pcbbind_setup(), and the checking in
in_pcbbind_check_bindmulti() is insufficient. So, let's remove it.
Warner Losh [Mon, 27 Feb 2023 14:27:45 +0000 (07:27 -0700)]
kbdreg.h: include opt_kbd.h
This is a kernel-only file, so it's safe to include opt_kbd.h. However,
add #ifdef _KERNEL guards to emphasize that. And also move the include
of opt_kbd.h in atkbdcreg.h to inside the kernel guards. Nothing outside
the kernel in tree uses the rest of that file, but I'm less comfortable
moving the #ifdef _KERNEL to the top of that file.
netlink: make the maximum allowed netlink socket buffer runtime tunable.
Dumping large routng tables (>1M paths with multipath) require the socket
buffer which is larger than the currently defined limit.
Allow the limit to be set in runtime, similar to kern.ipc.maxsockbuf.
Reported by: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
MFC after: 1 day
Piotr Kubaj [Sat, 25 Feb 2023 21:09:41 +0000 (22:09 +0100)]
powerpc64*: port mlx5, OFED, KTLS and krping
Summary:
This review ports mlx5 driver, kernel's OFED stack (userland is already enabled), KTLS and krping to powerpc64 and powerpc64le.
krping requires a small change since it uses assembly for amd64 / i386.
NOTE: On powerpc64le RDMA works fine in the userspace with libmlx5, but on powerpc64 it does not. The problem is that contrib/ofed/libmlx5/doorbell.h checks for SIZEOF_LONG but this macro exists on neither powerpc64* nor amd64. Thus, the file silently goes to the fallback function written for 32-bit architectures. It works fine on little-endian architectures, but causes a hard fail on big-endian. It's possible it may also cause some runtime issues on little-endian.
Thus, on powerpc64 I verified that RDMA works with krping.
Dimitry Andric [Sat, 25 Feb 2023 15:25:57 +0000 (16:25 +0100)]
Ensure .inc files are regenerated when llvm/clang tblgen binaries change
When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88fce), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:
In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770
Dmitry Chagin [Sun, 26 Feb 2023 13:42:22 +0000 (16:42 +0300)]
linprocfs(4): Fixup process size in the /proc/pid/stat file
According to the Linux sources the kernel exposes a proces virtual
memory size via proc filesystem into the three files - stat, status
and statm. This is the struct mm->total_vm value adjusted to the
corresponding units - bytes, kilobytes and pages.
The fix is based on a fernape@ analysis.
PR: 265937
Reported by: Ray Bellis
MFC after: 3 days
Gordon Bergling [Sun, 26 Feb 2023 13:33:58 +0000 (14:33 +0100)]
route.8: Fix mandoc warnings
- skipping end of block that is not open: Oc
- no blank before trailing delimiter
- remove useless TN macros
- remove commented out reference for esis(4)
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D38783
Gordon Bergling [Sun, 26 Feb 2023 13:15:34 +0000 (14:15 +0100)]
route.8: Add information about ROUTE_MPATH and FIB_ALGO
Since the kernel options ROUTE_MPATH and FIB_ALGO are enabled
per default for a while, it's good to have some user facing
documetation about the general functionality of multipath
routing and fib lookup algorithms.
Reviewed by: pauamma, Jose Luis Duran <jlduran at gmail dot com>
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D38783
Piotr Kubaj [Sat, 25 Feb 2023 21:09:41 +0000 (22:09 +0100)]
powerpc64*: port mlx5, OFED, KTLS and krping
Summary:
This review ports mlx5 driver, kernel's OFED stack (userland is already enabled), KTLS and krping to powerpc64 and powerpc64le.
krping requires a small change since it uses assembly for amd64 / i386.
NOTE: On powerpc64le RDMA works fine in the userspace with libmlx5, but on powerpc64 it does not. The problem is that contrib/ofed/libmlx5/doorbell.h checks for SIZEOF_LONG but this macro exists on neither powerpc64* nor amd64. Thus, the file silently goes to the fallback function written for 32-bit architectures. It works fine on little-endian architectures, but causes a hard fail on big-endian. It's possible it may also cause some runtime issues on little-endian.
Thus, on powerpc64 I verified that RDMA works with krping.
Warner Losh [Sat, 25 Feb 2023 18:33:22 +0000 (11:33 -0700)]
kern: Remove gcc2_compiled stripping
Bruce added stripping of gcc2_compiled and other symbols when he made
the boot loader load the symbols for the kernel in 1995 (b5d89ca8ade3)
before the FreeBSD 2.1 release. This was copied around a bit and
tweaked over the years, but these symbols aren't produced by clang, nor
gcc12. The were to support dbx for a.out stabs format. gcc removed them
with stabs support last year. gcc 2.95.4 in FreeBSD 4.x continued to
emit these symbols unconditionally (it was missing a test for aout vs
elf it would appaer). They disappeared entirely with gcc 3.2.4 in 5.x
for all non a.out builds, and entirely in FreeBSD 6.x which had gcc
3.2.6.
Daniel Tameling [Sat, 25 Feb 2023 17:25:51 +0000 (10:25 -0700)]
uniq(1): use strtonum to parse options
Previously strtol was used and the result was directly cast to an int
without checking for an overflow. Use strtonum instead since it is
safer and tells us what went wrong.
Mina Galić [Fri, 24 Feb 2023 11:07:42 +0000 (11:07 +0000)]
apic: prevent divide by zero in CPU frequency init
If a CPU for some reason returns 0 as CPU frequency, we currently panic
on the resulting divide by zero when trying to initialize the CPU(s) via
APIC. When this happens, we'll fallback to measuring the frequency
instead.
Mark Johnston [Sat, 25 Feb 2023 15:21:19 +0000 (10:21 -0500)]
ck_queue: add CK_*_FOREACH_FROM
This is a variant of CK_*_FOREACH from FreeBSD queue.h which starts
iteration at the specified item. If the item pointer is NULL, iteration
starts from the beginning of the list.
Mike Karels [Sat, 25 Feb 2023 14:04:00 +0000 (08:04 -0600)]
sys/conf/NOTES: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Piotr Kubaj [Fri, 24 Feb 2023 13:26:31 +0000 (14:26 +0100)]
gh-bc: don't disable LTO on powerpc64
Summary:
The LTO issue has been fixed. While -flto for some reason is commented out,
since it wasn't completely removed, it may be expected to be reenabled.
Reviewers: se
Approved by: se
MFC after: 3 days
Subscribers: imp
Differential Revision: https://reviews.freebsd.org/D38755
Paul Floyd [Fri, 24 Feb 2023 16:29:01 +0000 (11:29 -0500)]
libc: handle zero alignment in memalign()
For compatibility with glibc. The previous code would trigger a division
by zero in roundup() and terminate. Instead, just pass through to
malloc() for align == 0.
Mitchell Horne [Fri, 24 Feb 2023 17:19:54 +0000 (13:19 -0400)]
bcm_dma: don't dereference NULL softc
This file defines a small API to be used by other drivers. If any of
these functions are called before the bcm_dma device has attached we
should handle the error gracefully. Fix a formatting quirk while here.
Reviewed by: manu
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D38756
Mark Millard [Fri, 17 Feb 2023 20:30:35 +0000 (16:30 -0400)]
bcm_dma: attach at an earlier bus pass
The sdhci_bcm driver attach routine relies on bcm_dma already being
attached, in order to allocate a DMA channel. However, both drivers
attached at the default pass so this is not guaranteed. Newer RPI
firmware exposes this assumption, and the result is a NULL-dereference
in bcm_dma_allocate().
Rick Macklem [Fri, 24 Feb 2023 15:36:28 +0000 (07:36 -0800)]
nfsd: Fix a use after free when vnet prisons are deleted
The Kasan tests show the nfsrvd_cleancache() results
in a modify after free. I think this occurs because the
nfsrv_cleanup() function gets executed after nfs_cleanup()
which free's the nfsstatsv1_p.
This patch makes them use the same subsystem and sets
SI_ORDER_FIRST for nfs_cleanup(), so that it will be called
after nfsrv_cleanup() via VNET_SYSUNINIT().
The patch also sets nfsstatsv1_p NULL after free'ng it,
so that a crash will result if it is used after free'ng.
The reason for this is while looping through loose source routing (LSRR)
and strict source routing (SSRR), hlen will become smaller than the IP
header. It may even become negative. This should terminate the loop.
However, when hlen is unsigned, an integer underflow occurs becoming a
large number causing the loop to continue virtually forever until hlen
is either by chance smaller than the lenghth of an IP header or it
segfaults.
Mike Karels [Thu, 23 Feb 2023 17:45:08 +0000 (11:45 -0600)]
riscv kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mike Karels [Thu, 23 Feb 2023 17:44:18 +0000 (11:44 -0600)]
powerpc kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mike Karels [Thu, 23 Feb 2023 17:42:59 +0000 (11:42 -0600)]
i386 kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mike Karels [Thu, 23 Feb 2023 17:41:31 +0000 (11:41 -0600)]
arm64 kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mike Karels [Thu, 23 Feb 2023 17:38:26 +0000 (11:38 -0600)]
arm kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mike Karels [Thu, 23 Feb 2023 17:09:39 +0000 (11:09 -0600)]
amd64 kernel config: clean up whitespace
Most options in kernel config files use "options<space><tab>OPTION".
This allows the option to be commented out without shifting columns.
A few options had two tabs, and some had spaces. Make them consistent.
Mark Johnston [Fri, 24 Feb 2023 02:45:01 +0000 (21:45 -0500)]
config: Include errno.h in mkmakefile.cc
Commit da8884202940 ("config: error out on malformed env/hint lines")
added a reference to EINVAL. In some configurations the bootstrap tools
build fails for lack of errno definitions.
Fixes: da8884202940 ("config: error out on malformed env/hint lines")
Reported by: syzbot+b1a5d112a737d9a2be9b@syzkaller.appspotmail.com
Bjoern A. Zeeb [Sat, 18 Feb 2023 01:15:21 +0000 (01:15 +0000)]
net80211: ieee80211_swscan_bg_scan() track return variable under lock
As the comment says it probably does not matter but use a local
variable to track state under lock so we can return the last known
good state of what we thought we were operating under after unlocking.
Likely no functional changes.
Sponsored by: The FreeBSD Foundation
MFC atfer: 3 days
Reviewed by: enweiwu, adrian
Differential Revision: https://reviews.freebsd.org/D38660
Zhenlei Huang [Thu, 23 Feb 2023 18:00:09 +0000 (02:00 +0800)]
Delete obsolete Solaris compat header file stdlib.h
This drops function `getexecname()` redirection.
Historically `getexecname()` is a compatibility definition. Since
openzfs has its own implementation of function `getexecname()` in libspl
and has been merged into base, the compat header file stdlib.h is
no longer needed and should not be used.
Also without this fix libspl will end up an incompatible version of
`getprogname()` with libc. In particular, if zfs is enabled, programs
such as pgrep in /rescue can be wrongly statically linked with libspl
and will not function properly.
PR: 269738
Reviewed by: markj
Fixes: 9e5787d2284e Merge OpenZFS support in to HEAD
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D38733
* Make nhop_set_blackhole() set all necessary properties for the
nexthop
* Make nexthops blackhole/reject based on the rtm_type netlink
property instead of using rtflags.
Reported by: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
MFC after: 3 days
Kornel Dulęba [Mon, 20 Feb 2023 14:48:40 +0000 (14:48 +0000)]
arm: Fix initialization of VFP context
Make sure that pcb_vfpsaved is always initialized.
Create a vfp_new_thread helper that is heavily based on the arm64 logic.
While here remove un unnecessary assigment and add an assertion
to make sure that it's been properly initialized before we return
from a VFP exception.
Reported by: Mark Millard <marklmi@yahoo.com>
Tested by: Mark Millard <marklmi@yahoo.com>
Differential Revision: https://reviews.freebsd.org/D38698
Kornel Dulęba [Mon, 20 Feb 2023 14:44:36 +0000 (14:44 +0000)]
arm: Unbreak debugging programs that use FP instructions
Contrary to arm64, on armv7 get_vfpcontext/set_vfpcontext can be called
from cpu_ptrace. This can be triggered when gdb hits a breakpoint
in a userspace program.
Relax td == currthread assertion to account for that situation.
While here update an outdated comment in vfp_discard.
Reported by: Mark Millard <marklmi@yahoo.com>
Tested by: Mark Millard <marklmi@yahoo.com>
Differential Revision: https://reviews.freebsd.org/D38696
Gleb Smirnoff [Thu, 23 Feb 2023 04:44:46 +0000 (20:44 -0800)]
unix/dgram tests: match the kernel behavior
In CURRENT for some time an overflowed unix/dgram socket would
return EAGAIN if it has O_NONBLOCK set. This proved to be
undesired. See 71e70c25c00 for details. Update tests to match
the "new" behavior, which actually is the historical behavior.
Rick Macklem [Wed, 22 Feb 2023 22:09:15 +0000 (14:09 -0800)]
nfsd.c: Log a more meaningful failure message
For the cases where the nfsd(8) daemon is already running or
has failed to start within a prison due to an incorrect prison
configuration, the failure message logged is:
Can't read stable storage file: operation not permitted
This patch replaces the above with more meaningful messages.
It depends on commit 10dff9da9748 to differentiate between the
above two cases, however even without this commit, the messages
should be an improvement.
Rick Macklem [Wed, 22 Feb 2023 21:19:07 +0000 (13:19 -0800)]
nfsd: Return ENXIO instead of EPERM when nfsd(8) already running
The nfsd(8) daemon generates an error message that does not
indicate that the nfsd daemon is already running when the nfssvc(2)
syscall fails for the NFSSVC_STABLERESTART. Also, the check for
running nfsd(8) in a vnet prison will return EPERM when it fails.
This patch replaces EPERM with ENXIO so that the nfsd(8) daemon
can generate more reasonable failure messages. The nfsd(8) daemon
will be patched in a future commit.
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