Commit Graph

254001 Commits

Author SHA1 Message Date
Fernando Apesteguía
64e352c6df pwd(1): Add EXAMPLES section
Small EXAMPLES section.

Add reference to realpath(1) due to similarity.

Approved by:	manpages (gbe@)
Differential Revision:		https://reviews.freebsd.org/D26862
2020-10-24 16:42:35 +00:00
Fernando Apesteguía
f7585b288b getent(1): Add EXAMPLES section
Add 3 small examples to the EXAMPLES section.

Approved by:	manpages (gbe@)
Differential Revision:		https://reviews.freebsd.org/D26866
2020-10-24 16:40:34 +00:00
Ryan Moeller
b19cdab345 Skip RAW kstat sysctls by default
hese kstats are often expensive to compute so we want to avoid them
unless specifically requested.

The following kstats are affected by this change:

kstat.zfs.${pool}.multihost
kstat.zfs.${pool}.misc.state
kstat.zfs.${pool}.txgs
kstat.zfs.misc.fletcher_4_bench
kstat.zfs.misc.vdev_raidz_bench
kstat.zfs.misc.dbufs
kstat.zfs.misc.dbgmsg

PR:		249258
Reported by:	mjg
Reviewed by:	mjg, allanjude
Obtained from:	https://github.com/openzfs/zfs/pull/11099
Sponsored by:	iXsystems, Inc.
2020-10-24 16:25:52 +00:00
Ryan Moeller
e58483c4fb sysctl+kern_sysctl: Honor SKIP for descendant nodes
Ensure we also skip descendants of SKIP nodes when iterating through children
of an explicitly specified node.

Reported by:	np
Reviewed by:	np
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D26833
2020-10-24 16:17:07 +00:00
Richard Scheffenegger
3767427354 TCP Cubic: improve reaction to (and rollback from) RTO
1. fix compliancy issue of CUBIC RTO handling according to RFC8312 section 4.7
2. add CUBIC CC_RTO_ERR handling

Submitted by:	chengc_netapp.com
Reviewed by:	rrs, tuexen, rscheff
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26808
2020-10-24 16:11:46 +00:00
Richard Scheffenegger
39a12f0178 tcp: move cwnd and ssthresh updates into cc modules
This will pave the way of setting ssthresh differently in TCP CUBIC, according
to RFC8312 section 4.7.

No functional change, only code movement.

Submitted by:	chengc_netapp.com
Reviewed by:	rrs, tuexen, rscheff
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26807
2020-10-24 16:09:18 +00:00
Ryan Moeller
8077b9bc60 sysctl: Misc code cleanup
* Use defined SYS_SYSCTL names
* Use memcmp instead of explicit loop
* Use NULL instead of 0 for pointer value
* Use __FBSDID
* Reformat, improve comments in parse()

No functional changes.

Reviewed by:	imp
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D26832
2020-10-24 16:05:37 +00:00
Xin LI
6f26c71d76 MFV r366990: less v563.
MFC after:	2 weeks
Relnotes:	yes
2020-10-24 15:58:42 +00:00
Kyle Evans
072ac1a143 backlight(9): compile with COMPAT_LINUXKPI as well
This would be more accurately expressed as COMPAT_LINUXKPI implying or
requiring backlight, but config(8) doesn't really have a way to express
that. This fixes the build with COMPAT_LINUXKPI specified in one's kernel
config.
2020-10-24 15:38:04 +00:00
Ryan Moeller
0595c12484 kern_sysctl: Misc code cleanup
Remove unused oidpp parameter from sysctl_sysctl_next_ls and
add high level comments to describe how it works.

No functional change.

Reviewed by:	imp
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D26854
2020-10-24 14:46:38 +00:00
Kyle Evans
275c821d3d audit: correct reporting of *execve(2) success
r326145 corrected do_execve() to return EJUSTRETURN upon success so that
important registers are not clobbered. This had the side effect of tapping
out 'failures' for all *execve(2) audit records, which is less than useful
for auditing purposes.

Audit exec returns earlier, where we can know for sure that EJUSTRETURN
translates to success. Note that this unsets TDP_AUDITREC as we commit the
audit record, so the usual audit in the syscall return path will do nothing.

PR:		249179
Reported by:	Eirik Oeverby <ltning-freebsd anduin net>
Reviewed by:	csjp, kib
MFC after:	1 week
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26922
2020-10-24 14:39:17 +00:00
Edward Tomasz Napierala
b3be0b4d0c Tweak linux(4) socket(2) debug messages.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26900
2020-10-24 14:25:38 +00:00
Edward Tomasz Napierala
62b1382ff3 Further improve prctl(2) debug.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26916
2020-10-24 14:23:44 +00:00
Mateusz Guzik
eb65cde4f5 cache: assorted typo fixes 2020-10-24 13:31:40 +00:00
Mateusz Guzik
029cfccc71 cache: add the missing NC_NOMAKEENTRY and NC_KEEPPOSENTRY to lockless lookup
They are de facto ignored.
2020-10-24 13:31:25 +00:00
Mateusz Guzik
7cc1718613 vfs: fix a race where reclaim vholds freed vnodes
Reported by:	pho
Tested by:	pho (previous version)
Fixes:	r366974 ("vfs: stop taking the interlock in vnode reclaim")
2020-10-24 13:30:37 +00:00
Hans Petter Selasky
ab79c9061c Implement xa_init() in the LinuxKPI as a wrapper for xa_init_flags().
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-24 13:16:10 +00:00
Hans Petter Selasky
1355e2dc4f More style fixes (partial revert of r366994).
Suggested by:		danfe@
Differential Revision:	https://reviews.freebsd.org/D26254
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-24 13:07:50 +00:00
Hans Petter Selasky
1d3a22e765 Fix order of header files:
sys/systm.h should come right after sys/param.h

Suggested by:		kib@
Differential Revision:	https://reviews.freebsd.org/D26254
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-24 10:52:09 +00:00
Hans Petter Selasky
01630a496b Run code through "clang-format -style=file" with some additional fixes.
No functional change.

Suggested by:		kib@ and emaste@
Differential Revision:	https://reviews.freebsd.org/D26254
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-24 10:23:21 +00:00
Alan Somers
b3baff23fe nfsstat: delete unused fields
Ever since r192762 nfsstat has included a few fields whose values were
always 0. They were copied from OpenBSD, but have never been used on
FreeBSD. Don't display them.

Reviewed by:	rmacklem
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D26920
2020-10-24 05:52:29 +00:00
Xin LI
e3e1c0a5de Vendor import of less v563. 2020-10-24 05:25:54 +00:00
Warner Losh
0fc1d20881 nvme: Remove compat code for older kernels
Remove code that supported pre-2011 kernels. CTLTYPE_S64 was defined
in rev 217616. All supported branches have it, so remove its compat
definition as OBE.
2020-10-24 01:59:01 +00:00
Mateusz Guzik
acb41008f3 cache: batch updates to numcache in case of mass removal 2020-10-24 01:14:52 +00:00
Mateusz Guzik
208cb7c4b6 cache: refactor alloc/free
This in particular centralizes manipulation of numcache.
2020-10-24 01:14:17 +00:00
Mateusz Guzik
1d44405690 cache: fold branch prediction into cache_ncp_canuse 2020-10-24 01:13:47 +00:00
Mateusz Guzik
c13d7d1f98 cache: fix some typos 2020-10-24 01:13:16 +00:00
Mateusz Guzik
f878526f20 cache: drop write-only vars 2020-10-24 01:13:02 +00:00
Warner Losh
b38d86a585 warnx: fix needless static
I noticed after the review that these shouldn't be static. Remove the
'static' from them, otherwise concurrent calls to warn* might see a
similar but to the original.
2020-10-24 00:03:11 +00:00
Warner Losh
4e0771b2da warnx: Save errno across calls that might change it.
When warn() family of functions is being used after err_set_file() has
been set to, for example, /dev/null, errno is being clobbered,
rendering it unreliable after, for example, procstat_getpathname()
when it is supposed to emit a warning. Then the errno is changed to
Inappropriate ioctl for device, destroying the original value (via
calls to fprintf()functions).

Submitted by: Juraj Lutter
Differential Revision: https://reviews.freebsd.org/D26871
2020-10-23 23:56:00 +00:00
Brooks Davis
3e7449a37b Only use ASAN when using the in-tree compiler
When building FreeBSD 11 on a FreeBSD 12 system with
CROSS_TOOLCHAIN=llvm10 we end up trying to link against the packaged
version of the sanitizer library.  This resulted in a requirement for
getentropy(3) which is not present in FreeBSD 11.

Reviewed by:	emaste
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26903
2020-10-23 22:27:45 +00:00
Ruslan Bukin
9729b14985 Move the iommu stubs to a generic place, so they are available on all the
platforms.

This allows to not depend on the IOMMU macro in AHCI driver.

Requested by:	kib
Suggested by:	andrew
Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26887
2020-10-23 21:27:48 +00:00
Konstantin Belousov
116bc58260 xhci: Handle the case when MSI-X BAR is the same as IO BAR.
PCIe allows for MSI-X BAR to be either dedicated, or MSI-X Table may
be co-located in some functional BAR.  In the later case xhci(4) is
unable to allocate active resource for the table because BAR is
already activated.

Handle it by checking for this special case, and not try to alloc
resource if MSI-X BAR is IO.

Reported and tested by:	emaste
Reviewed by:	emaste, hselasky
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D26913
2020-10-23 18:18:45 +00:00
Ed Maste
573456a931 libelf: add compression header support
GNU and Oracle libelf implementations added support for section
compression, intended to reduce the size of DWARF debug info (which
might be an order of magnitude larger than the code).

There are two compressed ELF section formats:

1. Old GNU - sections are renmaed to start with 'z'.  Section contains
   a magic number, uncompressed size, and compressed data.

2. Oracle and New GNU - compressed sections use the SHF_COMPRESSED flag.
   The compression header contains the compression type, uncompressed
   size, and uncompressed alignment.

The second style is preferred and this change implements only that one.

Submitted by:	Tiger Gao <tig@FreeBSDFoundation.org>
Reviewed by:	markj
MFC after:	2 weeks
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24566
2020-10-23 16:35:23 +00:00
Mateusz Guzik
3862838921 cache: reduce memory waste in struct namecache
The previous scheme for calculating the total size was doing sizeof
on the struct and then adding the wanted space for the buffer.

nc_name is at offset 58 while sizeof(struct namecache) is 64.
With CACHE_PATH_CUTOFF of 39 bytes and 1 byte of padding we were
allocating 104 bytes for the entry and never accounting for the 6
byte padding, wasting that space.
2020-10-23 15:56:22 +00:00
Mateusz Guzik
25fb30bd9a vfs: drop spurious cache_purge on rmdir
The removed directory gets cache_purged which is sufficient to remove any entries
related to the parent.

Note only tmpfs, ufs and zfs are patched.
2020-10-23 15:50:49 +00:00
Mateusz Guzik
703f3fafa5 vfs: stop taking the interlock in vnode reclaim
It no longer protects any of tested fields, keeping all the checks racy.

While here make vtryrecycle drop the vnode on its own. Avoids an additional
lock trip.
2020-10-23 15:49:18 +00:00
Mark Johnston
93fb2b060b ntb: Fix the 32-bit build after r366969
Reported by:	Jenkins
MFC with:	r366969
2020-10-23 15:12:06 +00:00
Mark Johnston
a792802f2b rtsold: Remove an incorrect __unused annotation
MFC after:	1 week
2020-10-23 14:56:17 +00:00
Mark Johnston
eb3b7cece2 Add some missing nv(9) MLINKS
MFC after:	1 week
2020-10-23 14:25:48 +00:00
Mark Johnston
6660ef6e91 ntb: Add Intel Xeon Gen3 support
The NTB hardware starting with Skylake has some changes to the register
map and the doorbell interface.  Add a new NTB_XEON_GEN3 device type and
use it to conditionalize driver logic that differs from the existing
Xeon code.

Reviewed by:	vangyzen
Discussed with:	cem, Bret Ketchum <Bret.Ketchum@dell.com>
MFC after:	1 month
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26683
2020-10-23 14:16:52 +00:00
Mark Johnston
97441fab87 ntb: Fix an assertion to permit >= 32 doorbells
MFC after:	1 week
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
2020-10-23 14:15:58 +00:00
Edward Tomasz Napierala
1c7481377c Improve prctl(2) debug.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26899
2020-10-23 12:00:30 +00:00
Edward Tomasz Napierala
7135ca98d2 Add /proc/sys/kernel/ngroups_max to linprocfs(4). The id(1) command
seems to use it - it works fine without it, but still.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26898
2020-10-23 11:57:55 +00:00
Stefan Eßer
c77b04884c Udpate calendar man-page to mention the search path added in r366962.
Calendar files in /usr/lcoal/share/calendar take precedence over files in
the base system. They can be provided by a port or package, but since such
a port has not been committed, yet, no specific port name is suggested.

In fact, multiple ports could exist (e.g. per locale) without conflicting
with each other.
2020-10-23 10:00:56 +00:00
Stefan Eßer
34b38e1245 Add search of LOCALBASE/share/calendar for calendars supplied by a port.
Calendar files in LOCALBASE override similarily named ones in the base
system. This could easily be changed if the base system calendars should
have precedence, but it could lead to a violation of POLA since then the
port's files were ignored unless those in base have been deleted.

There was no definition of _PATH_LOCALBASE in paths.h, but verbatim uses
of /usr/local existed for _PATH_DEFPATH. Use _PATH_LOCALBASE here to ease
a consistent modification of this prefix.

Reviewed by:	imp, pfg
Differential Revision:	https://reviews.freebsd.org/D26882
2020-10-23 09:22:23 +00:00
Hans Petter Selasky
a71074e0af Fix for loading cuse.ko via rc.d . Make sure we declare the cuse(3)
module by name and not only by the version information, so that
"kldstat -q -m cuse" works.

Found by:		Goran Mekic <meka@tilda.center>
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-23 08:44:53 +00:00
Alan Cox
ccfd886a1b Conditionally compile struct vm_phys_seg's md_first field. This field is
only used by arm64's pmap.

Reviewed by:	kib, markj, scottph
Differential Revision:	https://reviews.freebsd.org/D26907
2020-10-23 06:24:38 +00:00
Navdeep Parhar
e2e43aafd7 cxgbe(4): Fix min/max typo in r366958. 2020-10-23 02:24:43 +00:00
Navdeep Parhar
b8b01d9be8 cxgbe(4): refine the values reported in if_ratelimit_query.
- Get the number of classes from chip_params.
- Get the number of ethofld tids from the firmware.
- Do not let tcp_ratelimit allocate all traffic classes.

Sponsored by:	Chelsio Communications
2020-10-23 01:36:54 +00:00