vendor provided pmu-events tables and sundry cleanups.
The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:
- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system
Update man page with newer sample types and remove unused sample type.
Squashed commit of the following:
commit 4459d43eff815bec08ccc5533dbe5de846f03128
Author: Matt Macy <mmacy@mattmacy.io>
Date: Sat May 26 00:06:31 2018 -0700
libpmc: fix pmu function signatures for non amd64
commit a2cb8bbc586c65d41f9b291430a2261ec67b59fe
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:38:11 2018 -0700
pmcstat: fix indentation of usage
commit f686954b15ff56a833ac80404898977cb80a265b
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:19:49 2018 -0700
pmclog(3): add callchain and pmcallocatedyn, remove pcsample
commit 73e13a0d2e9498c81c150d14d022050cee7511bb
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:19:00 2018 -0700
pmclog.h: GC pcsample field
commit 3e93ffd65da641fa657539dad3c48e281f8b5798
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:05:57 2018 -0700
hwpmc: make Intel core CPUs use external event tables
commit 634f5fae1e1644ac324003136c66cd9c619d1c93
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:00:06 2018 -0700
pmclog: update log record types, bump PMC_MAJOR
- explicitly make log record types a multiple of 8 bytes
- hook in pmu event types for pmc_allocate records
- remove references to no longer PCSAMPLE record
commit 83d84fcd2d65bdf6ddcb2e155a22f0cfa2a9c225
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 21:52:10 2018 -0700
libpmc: add support for having vendor table driven pmc_allocate
commit 9e6ad63c40c2fce8404847ace5078ca6cb33a736
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 19:11:33 2018 -0700
hwpmc_core: add accessors for EVSEL & UMASK, make IAP_UMASK useful to user
commit 859dceb93daa6419a48c794db99b6758e5b041c9
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 19:09:45 2018 -0700
pmcstat: update usage and man page as well as make -L consistent with pmccontrol
commit 79c7d8597e28c2eb13f5f9113e65ec2792ca57b1
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 18:07:03 2018 -0700
pmu_util: add support for all current intel event keywords
commit d8089c7f6a6c8527f38324252b1ffb47004694c6
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 17:45:00 2018 -0700
add description for new arguments
commit 058336740bab53c62ec88a3a026ea848cf3878c6
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 17:38:15 2018 -0700
libpmc: move pmu_events table and pmu_utils out of libpmcstat so that they can be used by pmc_allocate
commit 049b66b382e2f833c3f47bc8df9e750cb265709f
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:12:41 2018 -0700
pmcstat: hook pmu_events counter description utility routines in
commit f5e01e7b37a691dc045e1aa16b3ebdd162515de8
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:11:59 2018 -0700
pmu_events: add utility routines for listing counters and their descriptions
commit cba4d4f8907f772279f86f18f915e0d74d33ac56
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:09:50 2018 -0700
pmu-events: expand out skylake regex to simplify string matches
omcast was used without being initialized in the non-multicast case.
The only effect was that the interface's multicast output counter could be
incorrect.
Reported by: Coverity
CID: 1379662
MFC after: 3 days
Sponsored by: Dell EMC
switch the default kldxref_enable to YES.
The reason is that it's required for every image that's being cross-built,
as kldxref(8) cannot handle files for non-native architectures. For the
one that is not - amd64 - having it on by default doesn't change anything;
the script is noop if the linker.hints already exists.
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
This change also makes alignment and spacing an explicit number rather
than a bunch of spaces.
Reviewed by: mmacy
Requested by: Yuri Pankov <yuripv@yuripv.net>
POWER9 supports Radix page tables in addition to Hashed page tables. When
Radix page tables are in use, the TLB is cut in half, so that half of the
TLB is used for the page walk cache. This is the default behavior, however
FreeBSD currently does not support Radix tables. Clear this bit so that we
can use the full TLB. Do this in the MMU logic so that configuration can be
localized to the specific translation format. Once we do support Radix
tables, the setup for that will be localized to the Radix MMU kobj.
superpage mappings were already being created by automatic promotion in
vm_fault_populate(), this change reduces the cost of creating those
mappings. Essentially, one pmap_enter(..., psind=1) call takes the place
of 512 pmap_enter(..., psind=0) calls, and that one pmap_enter(...,
psind=1) call eliminates the allocation of a page table page.
Reviewed by: kib
MFC after: 10 days
Differential Revision: https://reviews.freebsd.org/D15572
ixl(4)'s nvmupdate utility expects the nvmupdate process to run
while the interface is down; these nvm update commands use the
admin queue, so the admin queue needs to be able to generate
interrupts and be processed while the interface is down.
So add a flag that ixl(4) sets that lets the entire admin task
run even when the interface is marked down/IFF_DRV_RUNNING isn't set.
With this change, nvmupdate should function like it did pre-iflib.
Reviewed by: gallatin@, sbruno@
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D15575
Summary:
PowerISA 2.03 and later require bits 14:65 in the RB register argument,
which is the full value of the vpn argument post-shift. Only POWER4, POWER4+,
and PPC970* need the upper 16 bits cropped.
With this change FreeBSD can boot to multi-user on POWER9.
Reviewed by: nwhitehorn
Differential Revision: https://reviews.freebsd.org/D15581
The tool is built separately in buildworld in a subdirectory rather than
how other build-tools are done. Subdirectory builds in lib/libpmcstat
remain broken since the tool cannot be auto-built from here.
The vadvise syscall (aka ovadvise) is undocumented and has always been
implmented as returning EINVAL. Put the syscall under COMPAT11 and
provide a userspace implementation.
Reviewed by: kib
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D15557
an rtentry. r334118 introduced a case when this was not done.
While we're here make the intent more obvious by moving the refcount
bump down to when we know we'll actually need it.
Reported by: markj
The current support for setting environment via foo_env="" in rc.conf is
not scalable and does not handle envs with spaces in the value. It seems
a common pattern for some newer software is to skip configuration files
altogether and rely on the env. This is well supported in systemd unit
files and may be the inspiration for this trend.
MFH: 1 week
Differential Revision: https://reviews.freebsd.org/D14453
Since GENERIC includes quite a few drivers now, all MMC drivers should have
appropriate MMCCAM-related ifdefs and include opt_mmccam.h so that
those ifdefs are actually processed correctly.
Reviewed by: manu
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15569
Previously lan78xx_chip_init locked the driver's mutex if not already
locked, but unlocked it only in the case of error. This provided a
fairly clear indication that the function is already called with the
lock held, so just replace it with a lock assertion.
Sponsored by: The FreeBSD Foundation
Supported Microchip devices:
- LAN7515 USB 2 hub and gigabit Ethernet controller w/ PHY
- LAN7800 USB 3.0 gigabit Ethernet controller w/ PHY
The LAN7515 is the Ethernet controller on the Raspberry Pi 3 B+.
This driver has some TODO items outstanding, but basic functionality
works.
Sponsored by: The FreeBSD Foundation
In particular, stop using pmap_pte() to read non-promoted pte while
walking the page table. pmap_pte() needs to shoot down the kernel
mapping globally which causes IPI broadcast. Since
pmap_extract_and_hold() is used for slow copyin(9), it is very
significant hit for the 4/4 kernels.
Instead, create single purpose per-processor page frame and use it to
locally map page table page inside the critical section, to avoid
reuse of the frame by other thread if context switched.
Measurement demostrated very significant improvements in any load that
utilizes copyin/copyout.
Found and benchmarked by: bde
Sponsored by: The FreeBSD Foundation
These are documented in `time2posix.3` but the symbols are not actually
visible. Since these are not POSIX hide them behind _BSD_VISIBLE.
Reviewed by: wollman
Differential Revision: https://reviews.freebsd.org/D15530
This code was left over when it was imported from Linux. The original
committer thought that those functions would be implemented, so the
prototypes where left in place. Delete them at once.
Submitted by: pratyush
Reviewed by: royger
Differential Review: https://reviews.freebsd.org/D15553
The TSC-s are checked and synchronized only if they were good
originally. That is, invariant, synchronized, etc.
This is necessary on an AMD-based system where after a wakeup from STR I
see that BSP clock differs from AP clocks by a count that roughly
corresponds to one second. The APs are in sync with each other. Not
sure if this is a hardware quirk or a firmware bug.
This is what I see after a resume with this change:
SMP: passed TSC synchronization test after adjustment
acpi_timer0: restoring timecounter, ACPI-fast -> TSC-low
Reviewed by: kib
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D15551
It turns out that sendfile_swapin() has an optimization where it may
insert pointers to bogus_page into the page array that it passes to
VOP_GETPAGES. That happens to work with buffer cache, because it
extensively uses bogus_page internally, so it has the necessary checks.
However, ZFS did not expect bogus_page as VOP_GETPAGES(9) does not
document such a (ab)use of bogus_page.
So, this commit adds checks and handling of bogus_page.
I expect that use of bogus_page with VOP_GETPAGES will get documented
sooner rather than later.
Reported by: Andrew Reilly <areilly@bigpond.net.au>, delphij
Tested by: Andrew Reilly <areilly@bigpond.net.au>
Requested by: many
MFC after: 1 week
- Remove layering violation, when NVMe SIM code accessed CAM internal
device structures to set pointers on controller and namespace data.
Instead make NVMe XPT probe fetch the data directly from hardware.
- Cleanup NVMe SIM code, fixing support for multiple namespaces per
controller (reporting them as LUNs) and adding controller detach support
and run-time namespace change notifications.
- Add initial support for namespace change async events. So far only
in CAM mode, but it allows run-time namespace arrival and departure.
- Add missing nvme_notify_fail_consumers() call on controller detach.
Together with previous changes this allows NVMe device detach/unplug.
Non-CAM mode still requires a lot of love to stay on par, but at least
CAM mode code should not stay in the way so much, becoming much more
self-sufficient.
Reviewed by: imp
MFC after: 1 month
Sponsored by: iXsystems, Inc.
strdup(3) allocates memory for a copy of the string, does the copy and
returns a pointer to it. If there is no sufficient memory NULL is returned
and the global errno is set to ENOMEM.
We do a sanity check to see if it was possible to allocate enough memory.
Also as we allocate memory, we need to free this memory used. Or it will
going out of scope leaks the storage it points to.
Reviewed by: rgrimes
MFC after: 3 weeks.
X-MFC: r332298
Sponsored by: iXsystems Inc.
Differential Revision: https://reviews.freebsd.org/D15550
I'm in the process of reworking how the reset path works with an eye
to better recovery when the chips hang and/or go RF/PHY deaf.
This is the first step in a lot of unification and API changes.
Shortly, we'll be moving to defining bzero and memset in terms of
__builting_memset. To do that, we can't have macro calls to bzero in
the fallback impelmentation of memset. Normal calls to bzero are fine.
All 4 architectures that use this have their own copies of bzero, so
there's no mutual recursion issue between memset and bcopy.
to themselves. The updated code assumed that that could not happen
and would try to lock the unp mutex twice.
There may be a lingering issue here but this fixes it for the
reporter.
PR: 228458
Reported by: marieheleneka at gmail.com
