Commit Graph

227970 Commits

Author SHA1 Message Date
Nathan Whitehorn
cb74659e0c Preserve the LPCR on new-ish (POWER7 and POWER8) CPUs, preventing exceptions
and such from ending on the wrong CPU on SMP systems. It would be good to
have this be more generic somehow as POWER9s appear, but PPC does not
have features bits, unfortunately.

MFC after:	3 weeks
2017-11-25 22:03:25 +00:00
Nathan Whitehorn
f04a8fd6a9 Yield while spinning on APs and avoid announcing all CPUs unless bootverbose
is set. These improve startup performance on massively multithreaded systems
with 8-way SMT and dozens to hundreds of CPUs.

MFC after:	3 weeks
2017-11-25 22:01:55 +00:00
Nathan Whitehorn
de2dd83fb9 Whether you can use mttb() or not is more complicated than whether PSL_HV
is set and the right thing to do may be platform-dependent (it requires
firmware on PowerNV, for instance). Make it a new platform method called
platform_smp_timebase_sync().

MFC after:	3 weeks
2017-11-25 21:59:59 +00:00
Nathan Whitehorn
763864aa95 Do not bind to CPUs with SMT, which use a different CPU numbering convention
that does not play well with this driver.

MFC after:	2 weeks
2017-11-25 21:46:51 +00:00
Nathan Whitehorn
25449e73a1 Avoid emitting a PT_INTERP section for powerpc64 kernels and arrange for
the first instruction to be at the start of the text segment. This allows
the kernel to be booted correctly by stock kexec-lite.

MFC after:	2 weeks
2017-11-25 21:45:51 +00:00
Nathan Whitehorn
5d85170026 Automatically use the ELFv2 ABI on powerpc64 if supported by the compiler.
This has the same effects on DDB working as -mcall=aixdesc, but also is
supported by clang and marginally improves kernel performance.

MFC after:	2 weeks
2017-11-25 21:44:23 +00:00
Mateusz Guzik
2c50bafef5 Add the missing lockstat check for thread lock. 2017-11-25 20:49:27 +00:00
Mateusz Guzik
11183f42d9 Convert in-kernel thread_lock_flags calls to thread_lock when debug is disabled
The flags argument is not used in this case.
2017-11-25 20:37:13 +00:00
Mateusz Guzik
5ba6facfcd rwlock: fix up compilation of the previous change
commmitted wrong version of the patch
2017-11-25 20:25:45 +00:00
Mateusz Guzik
c1e1a7ec30 rwlock: add __rw_try_{r,w}lock_int 2017-11-25 20:22:51 +00:00
Mateusz Guzik
cec1747322 sx: change sunlock to wake waiters up if it locked sleepq
sleepq is only locked if the curhtread is the last reader. By the time
the lock gets acquired new ones could have arrived. The previous code
would unlock and loop back. This results spurious relocking of sleepq.

This is a step towards xadd-based unlock routine.
2017-11-25 20:13:50 +00:00
Mateusz Guzik
93118b62f9 locks: retry turnstile/sleepq loops on failed cmpset
In order to go to sleep threads set waiter flags, but that can spuriously
fail e.g. when a new reader arrives. Instead of unlocking everything and
looping back, re-evaluate the new state while still holding the lock necessary
to go to sleep.
2017-11-25 20:10:33 +00:00
Mateusz Guzik
2e106e0427 rwlock: stop re-reading the owner when going to sleep 2017-11-25 20:08:11 +00:00
Pedro F. Giffuni
d915a14ef0 libc: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-25 17:12:48 +00:00
Pedro F. Giffuni
e58eb3c437 include: General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-25 17:09:43 +00:00
Kyle Evans
5b48129e9b Allwinner a83t: enable USB support
Originally a patch by Mark Millard, augmented with information from work
done on NetBSD by jmcneill@.

Submitted by:	Mark Millard (markmi@dsl-only.net)
Reviewed by:	emaste, manu
Approved by:	emaste (mentor)
Differential Revision:	https://reviews.freebsd.org/D13240
2017-11-25 16:46:35 +00:00
Kyle Evans
3579d98f0b Add r-ccu support for the Allwinner a83t
The r-ccu on the a83t differs from the others only by what it names the
ar100 parents. Export the _CCU macros (now converted to an enu) so that
ccu_sun8i_r can differentiate between a83t r-ccu and the others, then add
the compat string for the a83t r-ccu.

Reviewed by:	manu
Approved by:	emaste (mentor, implicit)
Differential Revision:	https://reviews.freebsd.org/D13206
2017-11-25 15:14:40 +00:00
Andriy Gapon
718cb91ccc zdb: follow-up to r326150, check if malloc succeeded
Reported by:	rpokala
MFC after:	1 week
X-MFC with:	r326150
2017-11-25 09:47:31 +00:00
Alexander Motin
3228add807 Slightly fix bidirectional stream number allocation.
This logic is still imperfect, since it allows at most 15 bidirectional
streams out of 30 allowed by specification, but at least now those should
work better.  On the other side I don't remember I ever saw controller
supporting the bidirectional streams, so this is likely a nop change.

MFC after:	1 month
2017-11-25 09:42:14 +00:00
Xin LI
216f72f141 Set errno to EFTYPE instead of EINVAL to be more consistent with the
rest of code.

MFC after:	1 month
2017-11-25 09:03:38 +00:00
John Baldwin
ffb6607984 Decode kevent structures logged via ktrace(2) in kdump.
- Add a new KTR_STRUCT_ARRAY ktrace record type which dumps an array of
  structures.

  The structure name in the record payload is preceded by a size_t
  containing the size of the individual structures.  Use this to
  replace the previous code that dumped the kevent arrays dumped for
  kevent().  kdump is now able to decode the kevent structures rather
  than dumping their contents via a hexdump.

  One change from before is that the 'changes' and 'events' arrays are
  not marked with separate 'read' and 'write' annotations in kdump
  output.  Instead, the first array is the 'changes' array, and the
  second array (only present if kevent doesn't fail with an error) is
  the 'events' array.  For kevent(), empty arrays are denoted by an
  entry with an array containing zero entries rather than no record.

- Move kevent decoding tables from truss to libsysdecode.

  This adds three new functions to decode members of struct kevent:
  sysdecode_kevent_filter, sysdecode_kevent_flags, and
  sysdecode_kevent_fflags.

  kdump uses these helper functions to pretty-print kevent fields.

- Move structure definitions for freebsd11 and freebsd32 kevent
  structures to <sys/event.h> so that they can be shared with userland.
  The 32-bit structures are only exposed if _WANT_KEVENT32 is defined.
  The freebsd11 structures are only exposed if _WANT_FREEBSD11_KEVENT is
  defined.  The 32-bit freebsd11 structure requires both.

- Decode freebsd11 kevent structures in truss for the compat11.kevent()
  system call.

- Log 32-bit kevent structures via ktrace for 32-bit compat kevent()
  system calls.

- While here, constify the 'void *data' argument to ktrstruct().

Reviewed by:	kib (earlier version)
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D12470
2017-11-25 04:49:12 +00:00
John Baldwin
2edb60b9d5 Add stdio.h to the synopsis for sysdecode functions that take a FILE *. 2017-11-25 03:59:36 +00:00
Nathan Whitehorn
28b2cf37b9 Modify all FreeBSD bootloaders on PowerPC AIM (Book-S) systems to pass a
magic number to the kernel in r7 rather than the (currently unused and
irrelevant) width of the metadata pointer, which I believe was intended
for a never-used approach to the 64-bit port. This enables the kernel,
in a future commit, to switch on the cookie to distinguish a real
metadata pointer from loader(8) from garbage left in r6 by some other
boot loader.

MFC after:	3 weeks
2017-11-24 23:41:04 +00:00
Mark Johnston
e96f62322b Compile one of the uctf test programs with -m32.
The err.user64mode.ksh test expects it to run as a 32-bit process.

MFC after:	1 week
2017-11-24 19:57:13 +00:00
Michael Tuexen
18442f0a5b Fix SPDX line as suggested by pfg 2017-11-24 19:38:59 +00:00
Ed Maste
ccf802cf18 Temporarily disable VIMAGE on arm64
Loading a kernel module with a static VNET_DEFINE'd variable (e.g.
if_lagg) currently results in a kernel panic.

PR:		223670
2017-11-24 19:21:21 +00:00
Mark Johnston
8bb47d1432 Don't redefine _KERNEL.
MFC after:	1 week
2017-11-24 19:08:54 +00:00
Mark Johnston
eb381edab7 Fix the type signature for sx(9) DTrace subroutines.
MFC after:	1 week
2017-11-24 19:05:45 +00:00
Mark Johnston
dbe4541db2 Have lockstat:::sx-release fire only after the lock state has changed.
MFC after:	1 week
2017-11-24 19:04:31 +00:00
Mark Johnston
26d94f99af Add a missing lockstat:::sx-downgrade probe.
We were returning without firing the probe when the lock had no shared
waiters.

MFC after:	1 week
2017-11-24 19:02:06 +00:00
Landon J. Fuller
f8e61edaa1 bhnd(4): Add missing dependency on ofw_bus_if.h
Reported by:	wma
Approved by:	adrian (mentor, implicit)
2017-11-24 19:01:14 +00:00
Mark Johnston
26a8bd903a Fix typos.
MFC after:	3 days
2017-11-24 17:57:00 +00:00
Jason W. Bacon
8f72ae0612 Add new ports committer jwb
Approved by:    jrm
2017-11-24 16:54:25 +00:00
Nathan Whitehorn
32d122363f Switch the default firmware for npe(4) from the QOS_VLAN one to the
plain-vanilla ETH microcode. The QOS_VLAN firmware added support in microcode
for handling IEEE 802.1q tags, but the npe(4) driver did not actually
support the relevant signalling. As a result, it was impossible to use
VLANs with npe(4). Switching to the more basic microcode (same license)
removes the on-NIC promisisng and makes vlan(4) work on both NPE interfaces.

Ref: https://lists.freebsd.org/pipermail/freebsd-arm/2012-August/003826.html
2017-11-24 15:48:17 +00:00
Hans Petter Selasky
87181516ef RoCE/infiniband upgrade to Linux v4.9 for kernel and userspace.
This commit merges projects/bsd_rdma_4_9 to head.

List of kernel sources used:
============================

1) kernel sources were cloned from git://github.com/torvalds/linux.git
Top commit 69973b830859bc6529a7a0468ba0d80ee5117826 - tag: v4.9, linux-4.9

2) krping was cloned from https://github.com/larrystevenwise/krping
Top commit 292a2f1abf0348285e678a82264740d52e4dcfe4

List of userspace sources used:
===============================

1) rdma-core was cloned from https://github.com/linux-rdma/rdma-core.git
Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75

2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git
Top commit 85f841cf209f791c89a075048a907020e924528d

3) libibmad was cloned from git://git.openfabrics.org/~iraweiny/libibmad.git
Tag 1.3.13 with some additional patches from Mellanox.

4) infiniband-diags was cloned from git://git.openfabrics.org/~iraweiny/infiniband-diags.git
Tag 1.6.7 with some additional patches from Mellanox.

NOTES:
======

1) The mthca driver has been removed in kernel and in userspace.
2) All GPLv2 only sources have been removed and where applicable
   rewritten from scratch under a BSD license.
3) List of fully supported drivers in userspace and kernel:
   a) iw_cxgbe (Chelsio)
   b) mlx4ib (Mellanox)
   c) mlx5ib (Mellanox)
4) WITH_OFED=YES is still required by make in order to build
   OFED userspace and kernel code.
5) Full support has been added for routable RoCE, RoCE v2.

Sponsored by:	Mellanox Technologies
2017-11-24 14:50:28 +00:00
Hans Petter Selasky
388290b8be Fix for multi-threaded lib32 compat build on amd64.
Sponsored by:	Mellanox Technologies
2017-11-24 14:29:32 +00:00
Ed Schouten
39202638bc Pick the right vDSO file/linker flags when building cloudabi32.ko on ARM64.
The recently imported cloudabi_vdso_armv6_on_64bit.S should be the vDSO
for 32-bit processes when being run on FreeBSD/arm64. This vDSO ensures
that all system call arguments are padded to 64 bits, so that they can
be used by the kernel to call into most of the native implementations
directly.
2017-11-24 14:02:32 +00:00
Ed Schouten
09f966caf7 Set CP15BEN in SCTLR to make memory barriers work in 32-bit mode.
Binaries generated by Clang for ARMv6 may contain these instructions:

  MCR p15, 0, <Rd>, c7, c10, 5

These instructions are deprecated as of ARMv7, which is why modern
processors have a way of toggling support for them. On FreeBSD/arm64 we
currently disable support for these instructions, meaning that if 32-bit
executables with these instructions are run, they would crash with
SIGILL. This is likely not what we want.

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D13145
2017-11-24 13:51:59 +00:00
Ed Schouten
9dcf90f8ad Add rudimentary support for building FreeBSD/arm64 with COMPAT_FREEBSD32.
Right now I'm using two Raspberry Pi's (2 and 3) to test CloudABI
support for armv6, armv7 and aarch64. It would be nice if I could
restrict this to just a single instance when testing smaller changes.
This is why I'd like to get COMPAT_CLOUDABI32 to work on arm64.

As COMPAT_CLOUDABI32 depends on COMPAT_FREEBSD32, at least for the ELF
loading, this change adds all of the bits necessary to at least build a
kernel with COMPAT_FREEBSD32. All of the machine dependent system calls
are still stubbed out, for the reason that implementations for these are
only useful if actual support for running FreeBSD binaries is added.
This is outside the scope of this work.

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D13144
2017-11-24 13:50:53 +00:00
Michael Tuexen
ad15e1548f Unbreak compilation when using SCTP_DETAILED_STR_STATS option.
MFC after:	1 week
2017-11-24 12:18:48 +00:00
Hans Petter Selasky
8a53e1340f Merge ^/head r326132 through r326161. 2017-11-24 12:13:27 +00:00
Hans Petter Selasky
322f006ecc Implement atomic_fetchadd_64() for i386. This function is needed by the
atomic64 header file in the LinuxKPI for i386.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2017-11-24 12:10:42 +00:00
Hans Petter Selasky
c3125bc5bf Compile fixes for 32-bit architectures.
Sponsored by:	Mellanox Technologies
2017-11-24 12:08:50 +00:00
Hans Petter Selasky
e5806bf466 Compile fix for LINT-NOIP kernel target.
Sponsored by:	Mellanox Technologies
2017-11-24 12:05:49 +00:00
Andriy Gapon
a3bbbd5e40 amd-vi: a small whitespace cleanup
Reviewed by:	anish
2017-11-24 11:37:41 +00:00
Andriy Gapon
685c54fc6a amd-vi: use correct type for pci_rid, start_dev_rid, end_dev_rid sysctls
Previously, the values could look confusing because of unrelated bits from
adjacent memory.

Reviewed by:	anish
2017-11-24 11:36:35 +00:00
Andriy Gapon
eb6c9c128c amd-vi: small improvements to event printing
Ensure that an opening bracket always has a matching closing one.
Ensure that there is always a new-line at the end of a report line.
Also, add a space before the printed event flag.

Reviewed by:	anish
2017-11-24 11:35:43 +00:00
Andriy Gapon
dee38cdc2a amd-vi: print some additional details for INVALID_DEVICE_REQUEST event
Namely, the type of the hardware event and whether the transaction
was a translation request.

Reviewed by:	anish
2017-11-24 11:34:46 +00:00
Michael Tuexen
b7d2b5d5b1 Add SPDX line. 2017-11-24 11:25:53 +00:00
Andriy Gapon
53d580f984 amd-vi: fix up r326152, the new width requires a wider type
This is my brain-o from extending the width at the last moment.
2017-11-24 11:25:06 +00:00