By using this functions, we can parse a list of tuples, each of them holds
xref and variable number of values.
This kind of list is used in DT for clocks, gpios, resets ...
Discussed with: ian, nwhitehorn
Approved by: kib (mentor)
Differential Revision: https://reviews.freebsd.org/D4316
LLE structure is mostly unchanged during its lifecycle: there are only 2
things relevant for fast path lookup code:
1) link-level address change. Since r286722, these updates are performed
under AFDATA WLOCK.
2) Some sort of feedback indicating that this particular entry is used so
we send NS to perform reachability verification instead of expiring entry.
The only signal that is needed from fast path is something like binary
yes/no.
The latter is solved by the following changes:
Special r_skip_req (introduced in D3688) value is used for fast path feedback.
It is read lockless by fast path, but updated under req_mutex mutex. If this
field is non-zero, then fast path will acquire lock and set it back to 0.
After transitioning to STALE state, callout timer is armed to run each
V_nd6_delay seconds to make sure that if packet was transmitted at the start
of given interval, we would be able to switch to PROBE state in V_nd6_delay
seconds as user expects.
(in STALE state) timer is rescheduled until original V_nd6_gctimer expires
keeping lle in STALE state (remaining timer value stored in lle_remtime).
(in STALE state) timer is rescheduled if packet was transmitted less that
V_nd6_delay seconds ago to make sure we transition to PROBE state exactly
after V_n6_delay seconds.
As a result, all packets towards lle in REACHABLE/STALE/PROBE states are handled
by fast path without acquiring lle read lock.
Differential Revision: https://reviews.freebsd.org/D3780
requests which page alignment + size is greater than MAXPHYS. Right
now md(4) over vnode would use the physical buffer of the size MAXPHYS
to map a data of size MAXPHYS + page offset of the user buffer. This
typically corrupts next pbuf, or, if the pbuf used was the last pbuf
in the map, the next page after the pbuf's map.
Split request up to the size of io which fits into pbuf KVA with
alignment, and retry if a part of the bio is left unprocessed.
Reported by: Fabian Keil <fk@fabiankeil.de>
Tested by: Fabian Keil, pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
- Implement 4-digit year format listing (-y option)
- Improve detection of text files
- Use %ju for error_count as it is unsigned
Obtained from: NetBSD
Approved by: des
These use ld(1), effectively -nostdlib, and don't need any of these
normal dependencies.
kmod builds also define PROG so just checking for KMOD here seems to be
the easiest to handle it.
Sponsored by: EMC / Isilon Storage Division
RISC-V is a new ISA designed to support computer research and education, and
is now become a standard open architecture for industry implementations.
This is a minimal set of changes required to run 'make kernel-toolchain'
using external (GNU) toolchain.
The FreeBSD/RISC-V project home: https://wiki.freebsd.org/riscv.
Reviewed by: andrew, bdrewery, emaste, imp
Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Differential Revision: https://reviews.freebsd.org/D4445
mps(4) sends StartStopUnit to SATA direct-access devices during shutdown.
Document the tunables which control that behavior.
PR: 195033
Reviewed by: scottl
Approved by: jhb
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D4456
Rework stat2ascii preparing a buffer of what could be printed. This prevent the
risk of overflowing a static buffer.
Do not print those informations anymore in the "status" but into a new
"extra status" only printed if there are actually extra things to print.
Now add those extra informations:
* Thermal sensor temperature
* Cooling devices speed
* Voltage sensors, current consumption
Tested by: AllanJude
Sponsored by: Gandi.net
Differential Revision: https://reviews.freebsd.org/D4520
Highlights (not already in the FreeBSD tree):
- addr2line: Speed up and support searching inlined functions
- addr2line: Support -i, -a, -p options
- readelf: Add some ARM relocation types
- readelf, libelf: Avoid reading beyond end of buffer/file
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
A panicking thread always executes with a critical section held, so any
attempt to allocate or free memory while dumping will otherwise cause a
second panic. This can occur, for example, if xpt_polled_action() completes
non-dump I/O that was pending at the time of the panic. The fact that this
can occur is itself a bug, but asserting in this case does little but
reduce the reliability of kernel dumps.
Suggested by: kib
Reported by: pho
The change in r291958 was not consistent with GNU objcopy. The start,
end and size symbols created for ELF objects converted from binary need
to include the full filename including the extension, but with the
periods replaced with underscores.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4474
http://www.t-es-t.hu/download/mips/md00090c.pdf this is bit 3 of the
config0 word, not bit 2. This should fix virtually indexed caches
(relatively new in the MIPS world, so no current platforms used this
and current code just uses it as an optimization). It was causing
false positives on newer platforms that default to large values for
the kseg0 cache coherency attribute.
Submitted by: Stanislav Galabov
PR: 205249
It is a part of MCDI rework to share more code among NIC families.
Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D4481
tables. Some drivers needed some slight re-arrangement of declarations
to accommodate this. Change the USB pnp tables slightly to allow
better compatibility with the system by moving linux driver info from
start of each entry to the end. All other PNP tables in the system
have the per-device flags and such at the end of the elements rather
that at the beginning.
Differential Review: https://reviews.freebsd.org/D3458
block. Use it in all the PNP drivers to export either the current PNP
table. For uart, create a custom table and export it using
MODULE_PNP_INFO since it's the only one that matches on function
number.
Differential Review: https://reviews.freebsd.org/D3461
doesn't have lots of ../../foo in it.
o Tweak the powerpc64 variant a bit. This gets us closer to working
with qemu-system-poewrpc64, but we aren't quite there yet.
Intel NVMe controllers have a slow path for I/Os that span a 128KB stripe boundary but ZFS limits ashift, which is derived from d_stripesize, to 13 (8KB) so we limit the stripesize reported to geom(8) to 4KB.
This may result in a small number of additional I/Os to require splitting in nvme(4), however the NVMe I/O path is very efficient so these additional I/Os will cause very minimal (if any) difference in performance or CPU utilisation.
This can be controller by the new sysctl kern.nvme.max_optimal_sectorsize.
MFC after: 1 week
Sponsored by: Multiplay
Differential Revision: https://reviews.freebsd.org/D4446
e500mc, e5500, and e6500 all use the normal FPU, with the same behavior as AIM
hardware. e6500 also supports Altivec, so, although we don't yet have e6500
hardware to test on, add these IVORs as well. Theoretically, since it boots the
same as a e5500, it should work, single-threaded, single-core, with full altivec
support as of this commit.
With this commit, and some other patches to be committed shortly FreeBSD now
boots on the P5020, single-core, all the way to user space, and should boot just
fine on e500mc.
Relnotes: Yes (e500mc, e5500 support)
Sponsored by: Alex Perez/Inertial Computing
IAP_F_FM's as well as incorrect umask specifications for
some of the new Broadwell/Skylake PMC's. Also silvermont
had a *lot* of missing IAP_F_FM.
Sponsored by: Netflix Inc.
Remove redundant lookup of the old page from vm_page_replace. Verification
that the old page exists is already done by vm_radix_replace.
Submitted by: Ryan Libby <rlibby@gmail.com>
Reviewed by: alc, kib
Sponsored by: EMC / Isilon Storage Division
Follow-up to: https://reviews.freebsd.org/D4326
Differential Revision: https://reviews.freebsd.org/D4471
