2534 Commits

Author SHA1 Message Date
bapt
bd0b52fc1f Revert crap accidentally committed 2017-01-28 16:31:23 +00:00
bapt
02ac05d572 Revert r312923 a better approach will be taken later 2017-01-28 16:30:14 +00:00
mjg
727e11df61 Introduce __read_mostly and __exclusive_cache_line macros.
The intended use is to annotate frequently used globals which either rarely
change (and thus can be grouped in the same cacheline) or are an atomic counter
(which means it may benefit from being the only variable in the cacheline).

Linker script support is provided only for amd64. Architectures without it risk
having other variables put in, i.e. as if they were not annotated. This is
harmless from correctness point of view.

Reviewed by:	bde (previous version)
MFC after:	1 month
2017-01-27 14:53:09 +00:00
ed
be72efbdd4 Catch up with changes to structure member names.
Pointer/length pairs are now always named ${name} and ${name}_len.
2017-01-17 22:05:52 +00:00
ed
6b2747eca6 Regenerate sources based on the system call tables. 2017-01-17 22:05:01 +00:00
glebius
7827ebf36b Use getsock_cap() instead of fgetsock().
Reviewed by:	dchagin
2017-01-06 04:38:38 +00:00
kib
5def9fa2c2 Do not allocate struct statfs on kernel stack.
Right now size of the structure is 472 bytes on amd64, which is
already large and stack allocations are indesirable.  With the ino64
work, MNAMELEN is increased to 1024, which will make it impossible to have
struct statfs on the stack.

Extracted from:	ino64 work by gleb
Discussed with:	mckusick
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-05 17:19:26 +00:00
kib
6d69bbcc31 Some style fixes for getfstat(2)-related code.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-05 17:03:35 +00:00
jhb
a8a4d60efe Regen after r310638.
Differential Revision:	https://reviews.freebsd.org/D8854
2016-12-27 20:22:17 +00:00
jhb
9105298a66 Rename the 'flags' argument to getfsstat() to 'mode' and validate it.
This argument is not a bitmask of flags, but only accepts a single value.
Fail with EINVAL if an invalid value is passed to 'flag'.  Rename the
'flags' argument to getmntinfo(3) to 'mode' as well to match.

This is a followup to r308088.

Reviewed by:	kib
MFC after:	1 month
2016-12-27 20:21:11 +00:00
hselasky
a79de9283d Implement more list header file functions.
Add definition guard for the list_head structure.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-26 10:41:51 +00:00
hselasky
a180b54242 Fix LINT build.
Found by:	mmel @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-26 10:03:33 +00:00
hselasky
e2b1f990f2 Implement register and unregister chrdev in the LinuxKPI.
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-26 01:18:07 +00:00
hselasky
f9661a05c5 Use correct integer type when computing the maximum physical address
for kmem_alloc_contig().

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-25 21:41:40 +00:00
hselasky
bc7c5848fe Improve LinuxKPI device support. Only delete own BSD devices and not
the ones obtained through devclass_get_device(). Some minor code
cleanups while at it.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-25 19:49:09 +00:00
cem
fd75e0b623 linuxkpi: Fix not-found case of linux_pci_find_irq_dev
Linux list_for_each_entry() does not neccessarily end with the iterator
NULL (it may be an offset from NULL if the list member is not the first
element of the member struct).

Reported by:	Coverity
CID:		1366940
Reviewed by:	hselasky@
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8780
2016-12-13 19:58:21 +00:00
ed
cefb702476 Remove the only user of sysctl_add_oid().
My plan is to change this function's prototype at some point in the
future to add a new label argument, which can be used to export all of
sysctl as metrics that can be scraped by Prometheus. Switch over this
caller to use the macro wrapper counterpart.
2016-12-13 07:58:30 +00:00
hselasky
d9c0bb6f7d Add more LinuxKPI PCI definitions.
Obtained from:	kmacy @
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-12-09 15:05:09 +00:00
hselasky
8edea1bc1a Prefer function macros over regular macros in the LinuxKPI.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-09 15:01:37 +00:00
hselasky
e2142136d1 Avoid malloc() warnings when using the LinuxKPI by zero-checking
the allocation flags.

Obtained from:		kmacy @
Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 14:06:22 +00:00
hselasky
bfcaed294a MSIX can support more than 256 IRQs. Make sure the invalid IRQ number
set in the LinuxKPI is big enough.

Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:53:31 +00:00
hselasky
7dcfee78f0 Prefix some _pci_xxx() functions in the Linux KPI with linux_ and make
sure the IRQ number used by these functions is unsigned.

Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:47:50 +00:00
hselasky
c247abf015 Prefix the Linux KPI's kmem_xxx() functions with linux_ to avoid
conflict with the opensolaris kernel module.

This patch solves a problem where the kernel linker will incorrectly
resolve opensolaris kmem_xxx() functions as linuxkpi ones, which leads
to a panic when these functions are used.

Submitted by:		gallatin @
Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:41:26 +00:00
vangyzen
4b13e96127 Export the whole thread name in kinfo_proc
kinfo_proc::ki_tdname is three characters shorter than
thread::td_name.  Add a ki_moretdname field for these three
extra characters.  Add the new field to kinfo_proc32, as well.
Update all in-tree consumers to read the new field and assemble
the full name, except for lldb's HostThreadFreeBSD.cpp, which
I will handle separately.  Bump __FreeBSD_version.

Reviewed by:	kib
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8722
2016-12-07 15:04:22 +00:00
alc
4be9876033 Remove PG_CACHED-related fields from struct vmmeter, because they are no
longer used.  More precisely, they are always zero because the code that
decremented and incremented them no longer exists.

Bump __FreeBSD_version to mark this change.

Reviewed by:	kib, markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8583
2016-11-22 18:13:46 +00:00
emaste
abeeb859d2 Tidy up ia32_sysvec sv_flags setting
Use the same approach as sys/arm/arm/elf_machdep.c to avoid an odd-
looking , on a separate line.
2016-10-20 20:29:54 +00:00
sephe
5a37a60a62 linuxkpi: Fix PCI BAR lazy allocation support.
FreeBSD supports lazy allocation of PCI BAR, that is, when a device
driver's attach method is invoked, even if the device's PCI BAR
address wasn't initialized, the invocation of bus_alloc_resource_any()
(the call chain: pci_alloc_resource() -> pci_alloc_multi_resource() ->
pci_reserve_map() -> pci_write_bar()) would allocate a proper address
for the PCI BAR and write this 'lazy allocated' address into the PCI
BAR.

This model works fine for native FreeBSD device drivers, but _not_ for
device drivers shared with Linux (e.g. dev/mlx5/mlx5_core/mlx5_main.c
and ofed/drivers/net/mlx4/main.c.  Both of them use
pci_request_regions(), which doesn't work properly with the PCI BAR
lazy allocation, because pci_resource_type() -> _pci_get_rle() always
returns NULL, so pci_request_regions() doesn't have the opportunity to
invoke bus_alloc_resource_any().  We now use pci_find_bar() in
pci_resource_type(), which is able to locate all available PCI BARs
even if some of them will be lazy allocated.

Submitted by:	Dexuan Cui <decui microsoft com>
Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8071
2016-09-30 05:51:11 +00:00
hselasky
c5cfa712d1 The IORESOURCE_XXX defines should resemble a bitmask while SYS_RES_XXX
are not bitmasks. Fix return value of pci_resource_flags() to reflect
this change.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-09-29 14:35:32 +00:00
mjg
79e13e132a cloudabi: use fget_cap instead of hand-rolling capability read
This has a side effect of unbreaking the build after r306272.

Discussed with:		ed
2016-09-23 23:08:23 +00:00
oshogbo
41574d7110 capsicum: propagate rights on accept(2)
Descriptor returned by accept(2) should inherits capabilities rights from
the listening socket.

PR:		201052
Reviewed by:	emaste, jonathan
Discussed with:	many
Differential Revision:	https://reviews.freebsd.org/D7724
2016-09-22 09:58:46 +00:00
markj
f2a1dd4de8 Regenerate syscall provider argument strings. 2016-09-22 04:50:03 +00:00
kib
262f303ffc Add PROC_TRAPCAP procctl(2) controls and global sysctl kern.trap_enocap.
Both can be used to cause processes in capability mode to receive
SIGTRAP when ENOTCAPABLE or ECAPMODE errors are returned from
syscalls.

Idea by:	emaste
Reviewed by:	oshogbo (previous version), emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D7965
2016-09-21 08:23:33 +00:00
emaste
a8b2a6847f Catch up to sys/capability.h rename to sys/capsicum.h in r263232
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-09-19 18:44:43 +00:00
kib
d6523aeee2 Regen. 2016-09-18 22:03:26 +00:00
kib
4534a41f33 Add compat32 support for capsicum.
Reviewed by:	bapt, emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D7942
2016-09-18 22:03:07 +00:00
dchagin
a5f2d0180a Implement BLKSSZGET ioctl for the Linuxulator.
PR:		212700
Submitted by:	Erik Cederstrand
Reported by:	Erik Cederstrand
MFC after:	1 week
2016-09-17 08:10:01 +00:00
mjg
e1a83699d7 linprocfs: garbage collect meminfo fields not present in linux
In particular memshared not only does not exist in linux, it was
extremely expensive to calculate.
2016-09-16 03:36:43 +00:00
jhb
bc4a384597 Remove 'cpu' and 'cpu_class' on amd64.
The 'cpu' and 'cpu_class' variables were always set to the same value
on amd64 and are legacy holdovers from i386.  Remove them entirely on
amd64.

Reviewed by:	imp, kib (older version)
Differential Revision:	https://reviews.freebsd.org/D7888
2016-09-15 17:05:54 +00:00
brooks
db6365232c Remove a pointless translation of struct ioc_toc_header.
struct ioc_toc_header will be the same size (and thus IOREADTOCHEADER
will have the same value on all supported platforms).

Sponsored by:	DARPA, AFRL
2016-09-08 00:38:50 +00:00
ed
d384988b4f Add missing header dependency.
This header depends on sigaltstack32 being declared.
2016-08-24 09:57:19 +00:00
ed
08c28fed33 Add source files generated from the 32-bit system call table. 2016-08-21 16:02:25 +00:00
ed
d46ddfcd43 Add CPU independent code for running 32-bits CloudABI executables.
Essentially, this is a literal copy of the code in sys/compat/cloudabi64,
except that it now makes use of 32-bits datatypes and limits. In
sys/conf/files, we now need to take care to build the code in
sys/compat/cloudabi if either COMPAT_CLOUDABI32 or COMPAT_CLOUDABI64 is
turned on.

This change does not yet include any of the CPU dependent bits. Right
now I have implementations for running i386 binaries both on i386 and
x86-64, which I will send out for review separately.
2016-08-21 16:01:30 +00:00
ed
934182e29a Don't forget to define __ELF_WORD_SIZE.
Without it, we only obtain the ELF types native to the system. In this
we explicitly want the 64-bit versions.
2016-08-21 15:37:49 +00:00
ed
656809e6f3 Add a utility macro for converting 64-bit pointers to native pointers.
Right now we're casting uint64_t's to native pointers. This isn't
causing any problems right now, but if we want to provide a 32-bit
compatibility layer that works on 64-bit systems as well, this will
cause problems. Casting a uint32_t to a 64-bit pointer throws a compiler
error.

Introduce a TO_PTR() macro that casts the value to uintptr_t before
casting it to a pointer.
2016-08-21 15:36:18 +00:00
ed
d6132bd82b Move the linker script from cloudabi64/ to cloudabi/.
It turns out that it works perfectly fine for generating 32-bits vDSOs
as well. While there, get rid of the extraneous .s file extension.
2016-08-21 15:14:06 +00:00
ed
c49861ac69 Use the right _MAX constant.
Though uio_resid is of type ssize_t, we need to take into account that
this source file contains an implementation specific to a certain
userspace pointer size. If this file provided 32-bit implementations,
this should have used INT32_MAX, even when running a 64-bit kernel.

This change has no effect, but is simply in preparation for adding
support for running 32-bit CloudABI executables.
2016-08-21 09:32:20 +00:00
ed
9e6112600c Use memcpy() to copy 64-bit timestamps into the syscall return values.
On 32-bit platforms, our 64-bit timestamps need to be split up across
two registers. A simple assignment to td_retval[0] will cause the top 32
bits to get lost. By using memcpy(), we will automatically either use 1
or 2 registers depending on the size of register_t.
2016-08-21 07:41:11 +00:00
ed
d7a2657d85 Regenerate system call table after r304483. 2016-08-19 17:54:06 +00:00
ed
3b685ef4b9 Import the new automatically generated system call table for CloudABI.
Now that we've switched over to using the vDSO on CloudABI, it becomes a
lot easier for us to phase out old features. System call numbering is no
longer something that's part of the ABI. It's fully based on names. As
long as the numbering used by the kernel and the vDSO is consistent
(which it always is), it's all right.

Let's put this to the test by removing a system call (thread_tcb_set())
that's already unused for quite some time now, but was only left intact
to serve as a placeholder. Sync in the new system call table that uses
alphabetic sorting of system calls.

Obtained from:	https://github.com/NuxiNL/cloudabi
2016-08-19 17:49:35 +00:00
gnn
956381ee95 Remove the obsolete and unused openbsd_poll system call. (Phase 2)
Reported by:	brooks
Reviewed by:	brooks, jhb
Differential Revision:	https://reviews.freebsd.org/D7548
2016-08-18 10:54:39 +00:00