hyperv: Deprecate HYPERV option by moving Hyper-V IDT vector into vmbus
Submitted by: Jun Su <junsu microsoft com>
Reviewed by: jhb, kib, sephe
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5910
It allows implementing loadable kernel modules with new actions and
without needing to modify kernel headers and ipfw(8). The module
registers its action handler and keyword string, that will be used
as action name. Using generic syntax user can add rules with this
action. Also ipfw(8) can be easily modified to extend basic syntax
for external actions, that become a part base system.
Sample modules will coming soon.
Enji Cooper [Thu, 14 Apr 2016 22:22:03 +0000 (22:22 +0000)]
Add DEBUG_FLAGS to PROG_VARS and STRIP to PROG_OVERRIDE_VARS
This will allow the variables [*] to be overridden on a per-PROG basis,
which is useful when controlling "stripping" behavior for some tests
that require debug symbols or to be unstripped
DEBUG_FLAGS (similar to CFLAGS) supports appending, whereas STRIP is
an override
*: Due to how STRIP is defined in bsd.own.mk (in addition to
bsd.lib.mk and bsd.prog.mk), and the fact that bsd.test.mk pulls in
bsd.own.mk first, overriding STRIP doesn't work today.
A follow up commit is pending to "rectify" this after additional
testing is done.
When using meta mode with filemon, the build is reliably incremental
safe. Bmake will use the meta files, along with filemon information,
to rebuild targets when their dependencies change, commands change,
or files they generate are missing.
Scott Long [Thu, 14 Apr 2016 21:55:42 +0000 (21:55 +0000)]
Add a devctl/devd notification conduit for CAM errors that happen at the
periph level. When a relevant error is reported to the periph, some
amplifying information is gathered, and the error and information are fed
to devctl with the attributes / keys system=CAM, subsystem=periph. The
'type' key will be either 'error' or 'timeout', and based on this, various
other keys are also populated.
The purpose of this is to provide a concise mechanism for error reporting
that is less noisy than the system console but higher in resolution and
fidelity than simple sysctl counters. We will be using it at Netflix to
populate a structured log and database to track errors and error trends
across our world-wide population of drives.
Warner Losh [Thu, 14 Apr 2016 21:47:58 +0000 (21:47 +0000)]
New CAM I/O scheduler for FreeBSD. The default I/O scheduler is the same
as before. The common scheduling bits have moved from inline code in
each of the CAM periph drivers into a library that implements the
default scheduling.
In addition, a number of rate-limiting and I/O preference options can
be enabled by adding CAM_IOSCHED_NETFLIX to your config file. A number
of extra stats are also maintained. CAM_IOSCHED_NETFLIX isn't on by
default because it uses a separate BIO_READ and BIO_WRITE queue, so
doesn't honor BIO_ORDERED between these two types of operations. We
already didn't honor it for BIO_DELETE, and we don't depend on
BIO_ORDERED between reads and writes anywhere in the system (it is
currently used with BIO_FLUSH in ZFS to make sure some writes are
complete before others start and as a poor-man's soft dependency in
one place in UFS where we won't be issuing READs until after the
operation completes). However, out of an abundance of caution, it
isn't enabled by default.
Plus, this also brings in NCQ TRIM support for those SSDs that support
it. A black list is also provided for known rogues that use NCQ trim
as an excuse to corrupt the drive. It was difficult to separate out
into a separate commit.
This code has run in production at Netflix for over a year now.
o Teach opcode rewriting framework handle several rewriters for
the same opcode.
o Reduce number of times classifier callback is called. It is
redundant to call it just after find_op_rw(), since the last
does call it already and can have all results.
o Do immediately opcode rewrite in the ref_opcode_object().
This eliminates additional classifier lookup later on bulk update.
For unresolved opcodes the behavior still the same, we save information
from classifier callback in the obj_idx array, then perform automatic
objects creation, then perform rewriting for opcodes using indeces
from created objects.
META_MODE: Pass along the default sysroot in bootstrap-tools to avoid rebuilds later.
Some of the clang libraries build in this phase and the cross-tools
phase. Later in the cross-tools phase when they build with a default
TOOLS_PREFIX, they see a changed build command in meta mode due to
the changed DEFAULT_SYSROOT. This is avoided by passing along
TOOLS_PREFIX earlier.
META_MODE: Don't rebuild build-tools targets during normal build.
This avoids 'build command changed' due to CFLAGS/CC changes during the
normal build. Without this the build-tools targets end up rebuilding
for the *target* rather than keeping the native versions built in
build-tools.
Rework META_TARGETS so that it automatically adds META_DEPS to the targets.
This will only be done if the target is defined, so if the target is
defined after bsd.sys.mk is included then it needs to manually add
${META_DEPS} still.
Alexander Motin [Thu, 14 Apr 2016 20:49:01 +0000 (20:49 +0000)]
Extract virtual port address from RQSTYPE_RPT_ID_ACQ.
This should close the race between request arriving on new target mode
virtual port and its scanner thread finally fetch its address for request
routing.
Michael Tuexen [Thu, 14 Apr 2016 19:59:21 +0000 (19:59 +0000)]
Allow the handling of ICMP messages sent in response to SCTP packets
containing an INIT chunk. These need to be handled in case the peer
does not support SCTP and returns an ICMP messages indicating destination
unreachable, protocol unreachable.
Michael Tuexen [Thu, 14 Apr 2016 19:51:29 +0000 (19:51 +0000)]
When delivering an ICMP packet to the ctlinput function, ensure that
the outer IP header, the ICMP header, the inner IP header and the
first n bytes are stored in contgous memory. The ctlinput functions
currently rely on this for n = 8. This fixes a bug in case the inner IP
header had options.
While there, remove the options from the outer header and provide a
way to increase n to allow improved ICMP handling for SCTP. This will
be added in another commit.
Ed Maste [Thu, 14 Apr 2016 16:32:27 +0000 (16:32 +0000)]
arm64 libc: hide .cerror, .curbrk, .minbrk for WITHOUT_SYMVER
When symver is in use these are hidden because they're not listed in
the Symbol.map. Add an explicit .hidden so they are also hidden in the
WITHOUT_SYMVER case.
Reviewed by: andrew
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5775
Andrew Turner [Thu, 14 Apr 2016 14:44:23 +0000 (14:44 +0000)]
Fix the types for the start, end, and count arguments to
arm_gic_fdt_alloc_resource. These were the old u_long where they should be
rman_res_t. Both of these are the same size on arm64 so this is just for
correctness, and would not have led to incorrect behaviour.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Ensure the received IP header gets 32-bits aligned.
The FreeBSD's TCP/IP stack assumes that the IP-header is 32-bits aligned
when decoding it. Else unaligned 32-bit memory access can happen, which
not all processor architectures support.
When downing a mlxen network adapter we need to check the port_up variable
to ensure we don't continue to transmit data or restart timers which can
reside in freed memory.
Alexander Motin [Thu, 14 Apr 2016 12:50:27 +0000 (12:50 +0000)]
Remove watchdog timer stop check.
There are bunch of reports that this check fails at least on Nuvoton
NCT6776 chips. I don't see why this check needed there, and Linux does
not have it either. So far this check only made watchdogd unstopable.
fopen(3) will return NULL in case it can't open the STREAM.
The malloc will return a pointer to the allocated memory if successful,
otherwise a NULL pointer is returned.
Also add an extra DEBUG1 to print out the error to open a file.
Reviewed by: ed
Differential Revision: https://svnweb.freebsd.org/changeset/base/297959
Andrew Turner [Thu, 14 Apr 2016 10:43:28 +0000 (10:43 +0000)]
Set the upper limit of the DMAP region to the limit of RAM as was found in
the physmap. This will reduce the likelihood of an issue where we have
device memory mapped in the DMAP. This can only happen if it is within the
same 1G block of normal memory.
Reviewed by: kib
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5938
Warner Losh [Thu, 14 Apr 2016 04:59:51 +0000 (04:59 +0000)]
Deprecate using hints.acpi.0.rsdp to communicate the RSDP to the
system. This uses the hints mechnanism. This mostly works today
because when there's no static hints (the default), this value can be
fetched from the hint. When there is a static hints file, the hint
passed from the boot loader to the kernel is ignored, but for the BIOS
case we're able to find it anyway. However, with UEFI, the fallback
doesn't work, so we get a panic instead.
Switch to acpi.rsdp and use TUNABLE_ULONG_FETCH instead. Continue to
generate the old values to allow for transitions. In addition, fall
back to the old method if the new method isn't present.
Simplify building libpam and fix libpam.a not containing the modules since r284345.
The change in r284345 moved the creation of openpam_static_modules.o to
lib/libpam/static_modules but never managed to get them into libpam.a.
Move this logic to lib/libpam/static_libpam and have it create a static
library for libpam.a The main lib/libpam/libpam will only create a
shared library. No redundancy in compilation or installation exists
in this solution.
This avoids requiring a pass with -D_NO_LIBPAM_SO_YET.
Separate POSIX mqueue objects in jails; actually, separate them by the
jail's root, so jails that don't have their own filesystem directory
also won't have their own mqueue namespace.
Separate POSIX sem/shm objects in jails, by prepending the jail's path
name to the object's "path". While the objects don't have real path
names, it's a filesystem-like namespace, which allows jails to be
kept to their own space, but still allows the system / jail parent to
access a jail's IPC.
Scott Long [Wed, 13 Apr 2016 20:10:06 +0000 (20:10 +0000)]
Add sbuf variants ata_cmd_sbuf() and ata_res_sbuf(), and reimplement the
_string variants on top of this. This requires a change to the function
signature of ata_res_sbuf(). Its use in the tree seems to be very limited,
and the change makes it more consistent with the rest of the API.
John Baldwin [Wed, 13 Apr 2016 18:39:33 +0000 (18:39 +0000)]
Handle PBA that shares a page with MSI-X table for passthrough devices.
If the PBA shares a page with the MSI-X table, map the shared page via
/dev/mem and emulate accesses to the portion of the PBA in the shared
page by accessing the mapped page.
John Baldwin [Wed, 13 Apr 2016 17:37:31 +0000 (17:37 +0000)]
Expose doreti as a global symbol on amd64 and i386.
doreti provides the common code path for returning from interrupt
andlers on x86. Exposing doreti as a global symbol allows kernel
modules to include low-level interrupt handlers instead of requiring
all low-level handlers to be statically compiled into the kernel.
Submitted by: Howard Su <howard0su@gmail.com>
Reviewed by: kib
Alexander Motin [Wed, 13 Apr 2016 10:35:17 +0000 (10:35 +0000)]
Filter Port Database Changed notifications.
For some reason firmware sends Port Database Changed notifications in case
of explicit login requests from the driver when target port is unavailabe.
Those notifications don't give driver any new information, but only cause
infinite scan loop.
Andrew Turner [Wed, 13 Apr 2016 09:44:32 +0000 (09:44 +0000)]
Increase the arm64 kernel address space to 512GB, and the DMAP region to
2TB. The latter can be increased in 512GB chunks by adjusting the lower
address, however more work will be needed to increase the former.
There is still some work needed to only create a DMAP region for the RAM
address space as on ARM architectures all mappings should have the same
memory attributes, and these will be different for device and normal memory.
Reviewed by: kib
Obtained from: ABT Systems Ltd
Relnotes: yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5859
- Pre-buffer audio data to VideoCore so there are no audible glitches when
driver is too late to provide samples
- Start actual playback when there is some prebuffered audio,
it fixes audible noisy click in the beginning of playback
- Use #defines instead of hardcoded values where appropriate
- Fix copy-pasted comment
Adrian Chadd [Wed, 13 Apr 2016 05:19:16 +0000 (05:19 +0000)]
[urtwn] use/track the last good RSSI for a given node, rather than no RSSI.
Now that we're decap'ing A-MPDU frame, the firmware is only giving us
PHY status information for the whole PPDU, rather than duplicatig it
per frame.
So, we fake it by maintaining the RSSI that we saw in the node struct
and reuse it.
This prevents us from getting some pretty garbage looking default RSSI
values, which shows up as RSSI values of like "3" or "4" when doing
active traffic.
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