Peter Grehan [Thu, 3 May 2018 22:51:44 +0000 (22:51 +0000)]
Allow PCI VGA devices to be detached.
GPUs often have a VGA PCI class code and are probed/attached
by the VGA driver. Allow them to be detached so they can
be presented as passthru devices to VM guests.
Add helper macros to hide some boring repeatable ceremonies to define
ifuncs on x86.
Also keep helpers to define 'pseudo-ifuncs' which are emulated by the
indirect jmp.
Reviewed by: jhb (previous version, as part of the larger patch)
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D13838
Implement support for ifuncs in the kernel linker.
Required MD bits are only provided for x86.
Reviewed by: jhb (previous version, as part of the larger patch)
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D13838
Kyle Evans [Thu, 3 May 2018 19:49:40 +0000 (19:49 +0000)]
Garbage collect the a83t emac overlays
The 4.16 DTS import brought in emac support for the a83t. Since these
boards' DTS is pulled from /boot and I forgot to hook these up to the build,
they should be fairly safe to go away.
The a83t-sid and h3-sid overlays are still relevant. a83t-sid will likely
come in with 4.18 DTS.
Benno Rice [Thu, 3 May 2018 17:52:40 +0000 (17:52 +0000)]
Add a stub manual page for iflib(9).
Currently 'man -k iflib' would find you the right pages for iflib
documentation, namely iflibdd(9) and iflibdi(9) but 'man iflib' would leave
you in the dark. This allows both approaches to find the relevant
documentation.
Stephen Hurd [Thu, 3 May 2018 17:02:31 +0000 (17:02 +0000)]
Allow iflib NIC drivers to sleep rather than busy wait
Since the move to SMP NIC driver locking has had to go through serious
contortions using mtx around long running hardware operations. This moves
iflib past that.
Individual drivers may now sleep when appropriate.
Andriy Gapon [Thu, 3 May 2018 15:33:18 +0000 (15:33 +0000)]
amdsbwd: add suspend and resume methods
Without the suspend method the watchdog may fire in S1 state. Without
the resume method the watchdog is not re-enabled after returning from S3
state. I observe this on one of my systems.
Not sure if watchdog(4) should participate in the suspend actions.
Right now everything is up to individual drivers.
Marcin Wojtas [Thu, 3 May 2018 01:10:41 +0000 (01:10 +0000)]
Fix SoC identification issue on Marvell platforms
Marvell SoC identification function was called by SYSINIT on all armv7
platforms, which brakes platforms other than Marvell built with
GENERIC config. Fix this by shifting SoC identifying to Marvell platform
initialization.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: manu
Tested by: manu
Obtained from: Semihalf
Sponsored by: Stormshield
Eitan Adler [Thu, 3 May 2018 00:57:19 +0000 (00:57 +0000)]
[etc] Update newsyslog.conf default comment
Remove line about allowed flags. It was missing 'pRTY' and is duplicative
of the man page. It didn't describe the flags in any detail to help
remind users of how to configure newsylog.
Ed Maste [Wed, 2 May 2018 23:43:33 +0000 (23:43 +0000)]
Build lld as long as we have a C++11 host compiler
As with Clang, build our toolchain components by default when the host
compiler is capable of doing so, to make them available for testing and
experimentation.
Michael Tuexen [Wed, 2 May 2018 22:11:16 +0000 (22:11 +0000)]
Send an ICMPv6 PacketTooBig message in case of forwading a packet which
is too big for the outgoing interface and no firewall is involed.
This problem was introduced in
https://svnweb.freebsd.org/changeset/base/324996
Thanks to Irene Ruengeler for finding the bug and testing the fix.
Rick Macklem [Wed, 2 May 2018 20:36:11 +0000 (20:36 +0000)]
Add two missing LIST_INIT()s.
This patch adds two missing LIST_INIT()s. Found by inspection.
In practice, these are currently no-ops, since the structure they are
in is malloc'd with M_ZERO and all LIST_INIT does is set the pointer
in the list head to NULL. (In other words, the M_ZERO has already
correctly initialized it.)
According to the 802.1Q-2014 9.6 VLAN Tag Control Information, VID value 0
means that there is no VLAN tag assigned to the packet, and only PCP and
DEI values from the tag are meaningful. Current flow table programming
filter out such packets.
When programming VLAN filter for flow table, unconditionally add rule which
accept packets with VLAN id 0. The packets are already handled correctly
by the network stack.
Alexander Motin [Wed, 2 May 2018 20:13:03 +0000 (20:13 +0000)]
Fix LOR between controller and queue locks.
Admin pass-through requests took controller lock before the queue lock,
but in case of request submission to a failed controller controller lock
was taken after the queue lock. Fix that by reducing the lock scopes and
switching to mtx_pool locks to track pass-through request completion.
r332839 changed number of cells per interrupt for local_intc from 1 to 2
to pass type of IRQ. Driver expected only 1 cell so after r332839
all interrupt children of local_intc failed to allocate IRQ resource.
Fix this regression by relaxing check for number of cells in interrupt
property to be either 1 or 2.
Michael Tuexen [Wed, 2 May 2018 19:36:46 +0000 (19:36 +0000)]
Fix in the documentation that the default hop limit is not 30, but
the value of the sysctl variable net.inet6.ip6.hlim.
This is true since
https://svnweb.freebsd.org/base?view=revision&revision=122574
The default of 30 (which was correct up to r122574) was incorrectly
documented in
https://svnweb.freebsd.org/base?view=revision&revision=130268
Thanks to Timo Voelker for makeing me aware of the inconsistency
between to code and the documentation.
Stephen Hurd [Wed, 2 May 2018 19:36:29 +0000 (19:36 +0000)]
Separate list manipulation locking from state change in multicast
Multicast incorrectly calls in to drivers with a mutex held causing drivers
to have to go through all manner of contortions to use a non sleepable lock.
Serialize multicast updates instead.
Peter Grehan [Wed, 2 May 2018 17:41:00 +0000 (17:41 +0000)]
Use PCI power-mgmt to reset a device if FLR fails.
A large number of devices don't support PCIe FLR, in particular
graphics adapters. Use PCI power management to perform the
reset if FLR fails or isn't available, by cycling the device
through the D3 state.
This has been tested by a number of users with Nvidia and AMD GPUs.
Submitted and tested by: Matt Macy
Reviewed by: jhb, imp, rgrimes
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D15268
Roger Pau Monné [Wed, 2 May 2018 10:19:17 +0000 (10:19 +0000)]
xen: fix gntdev
Current interface to the gntdev in FreeBSD is wrong, and mostly worked
out of luck before the PTI FreeBSD fixes, when kernel and user-space
where sharing the same page tables.
On FreeBSD ioctls have the size of the passed struct encoded in the
ioctl number, because the generic ioctl handler in the OS takes care
of copying the data from user-space to kernel space, and then calls
the device specific ioctl handler. Thus using ioctl structs with
variable sizes is not possible.
The fix is to turn the array of structs at the end of
ioctl_gntdev_alloc_gref and ioctl_gntdev_map_grant_ref into pointers,
that can be properly accessed from the kernel gntdev driver using the
copyin/copyout functions. Note that this is exactly how it's done for
the privcmd driver.
Kyle Evans [Wed, 2 May 2018 01:32:34 +0000 (01:32 +0000)]
cmp(1): Provide some long options
These match GNU cmp(1) for compatibility where applicable.
Future work might implement the -i option from GNU cmp(1) to express skip
either in terms of both files or of the form "SKIP1:SKIP2" rather than
specifying them as additional arguments to cmp(1).
Scott Long [Tue, 1 May 2018 21:42:27 +0000 (21:42 +0000)]
Refactor dadone(). There was no useful code sharing in it; it was just
a 1500 line switch statement. Callers now specify a discrete completion
handler, though they're still welcome to track state via ccb_state.
Scott Long [Tue, 1 May 2018 20:09:29 +0000 (20:09 +0000)]
cam_periph_runccb() changed several years ago to overwrite the ccb callback
pointer. It's now unhelpful and misleading for callers to continue to set
it, so bring all callers into conformance. There's no real functional change,
but it makes reading the code a lot less confusing.
Eric Joyner [Tue, 1 May 2018 18:50:12 +0000 (18:50 +0000)]
ixl(4): Update to 1.9.9-k
Refresh upstream driver before impending conversion to iflib.
Major changes:
- Support for descriptor writeback mode (required by ixlv(4) for AVF support)
- Ability to disable firmware LLDP agent by user (PR 221530)
- Fix for TX queue hang when using TSO (PR 221919)
- Separate descriptor ring sizes for TX and RX rings
Mark Johnston [Tue, 1 May 2018 17:32:43 +0000 (17:32 +0000)]
Print the dump progress indicator after calling dump_start().
Dumpers may wish to print messages from an initialization hook; this
change ensures that such messages aren't mixed with output from the
generic dump code.
Ed Maste [Tue, 1 May 2018 16:30:48 +0000 (16:30 +0000)]
Retire lmc(4)
This driver supports legacy, 32-bit PCI devices, and had an ambiguous
license. Supported devices were already reported to be rare in 2003
(when an earlier version of the driver was removed in r123201).
Reviewed by: rgrimes
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D15245
Warner Losh [Tue, 1 May 2018 16:21:01 +0000 (16:21 +0000)]
Remove 'All Rights Reserved.' from all of my Copyrights in sys/arm and
always use 'M. Warner Losh' for consistency.
'All Rights Reserved.' was prescribed by the Buenos Aires Copyright
Convention of 1910, but has been mostly dead since the early 1990's
and completely meaningless since 2000 when Nicaragua ratified the
Berne convention.
Some files not done due to ambiguity of various types.
John Baldwin [Tue, 1 May 2018 15:17:46 +0000 (15:17 +0000)]
Initial debug server for bhyve.
This commit adds a new debug server to bhyve. Unlike the existing -g
option which provides an efficient connection to a debug server
running in the guest OS, this debug server permits inspection and
control of the guest from within the hypervisor itself without
requiring any cooperation from the guest. It is similar to the debug
server provided by qemu.
To avoid conflicting with the existing -g option, a new -G option has
been added that accepts a TCP port. An IPv4 socket is bound to this
port and listens for connections from debuggers. In addition, if the
port begins with the character 'w', the hypervisor will pause the
guest at the first instruction until a debugger attaches and
explicitly continues the guest. Note that only a single debugger can
attach to a guest at a time.
Virtual CPUs are exposed to the remote debugger as threads. General
purpose register values can be read for each virtual CPU. Other
registers cannot currently be read, and no register values can be
changed by the debugger.
The remote debugger can read guest memory but not write to guest
memory. To facilitate source-level debugging of the guest, memory
addresses from the debugger are treated as virtual addresses (rather
than physical addresses) and are resolved to a physical address using
the active virtual address translation of the current virtual CPU.
Memory reads should honor memory mapped I/O regions, though the debug
server does not attempt to honor any alignment or size constraints
when accessing MMIO.
The debug server provides limited support for controlling the guest.
The guest is suspended when a debugger is attached and resumes when a
debugger detaches. A debugger can suspend a guest by sending a Ctrl-C
request (e.g. via Ctrl-C in GDB). A debugger can also continue a
suspended guest while remaining attached. Breakpoints are not yet
supported. Single stepping is supported on Intel CPUs that support
MTRAP VM exits, but is not available on other systems.
While the current debug server has limited functionality, it should
at least be usable for basic debugging now. It is also a useful
checkpoint to serve as a base for adding additional features.
Navdeep Parhar [Tue, 1 May 2018 14:59:38 +0000 (14:59 +0000)]
cxgbe(4): Destroy the cdev before disabling interrupts in driver detach.
Filter work requests are submitted in the nexus cdev's ioctl which then
blocks waiting for a reply. If driver detach runs in this state and
disables interrupts the ioctl will never complete and detach will hang
in destroy_cdev.
Emmanuel Vadot [Tue, 1 May 2018 13:57:08 +0000 (13:57 +0000)]
uart_snps: Add early printf support
Move the allwinner early printf support to the snps driver as it
should work with all implementation.
While here add instruction for enabling it on 64bits SoCs.
Justin Hibbits [Tue, 1 May 2018 04:31:17 +0000 (04:31 +0000)]
Remove dead errata fixup code
This code caused more problems than it should have fixed (boot failures) on
the machines I tested, so has been commented out for a while now. Remove
it, and assume the errata fixups were done by the bootloader where they
belong.
Ed Maste [Tue, 1 May 2018 00:53:46 +0000 (00:53 +0000)]
pwd_mkdb: retire legacy v3 db support (-l option)
pwd_mkdb has emitted v4 password database records since 2003 (r113596)
in addition to v3, and as of r283981 by default it emitted only v4.
As described in r283981, retire the -l legacy option.
The -B and -L options were originally added to set the endianness of v3
records emitted by pwd_mkdb, but they also set the db hash endiannes and
so have been retained temporarily.
Announced on the FreeBSD-Current and FreeBSD-Stable lists. In stable/11
the man page contains a deprecation notice, and pwd_mkdb will emit a
deprecation notice if the -l option is specified.
Reviewed by: delphij, lidl, rgrimes
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D15144
Alexander Motin [Mon, 30 Apr 2018 23:05:57 +0000 (23:05 +0000)]
Improve nvme(4) attach/detach sequences.
This change allows clean device detach on attach failures and driver unload,
while previous code tried to talk to already shut down controller, or even
accessed resources failed to allocate.
Reserve 3b in the 14b atid to identify the owner and use it to dispatch
the CPL. This allows all CPLs that use an atid to be used as shared
CPLs, although ACT_OPEN_RPL is the only one being converted in this
revision.
Resume starts CPU from the init state, which clears any loaded
microcode updates. As result, IBRS MSRs are no longer available,
until the microcode is reloaded.
I have to forcibly clear cpu_stdext_feature3, which assumes that CPUID
leaf 7 reg %ebx does not report anything except Meltdown/Spectre bugs
bits. If future CPUs add new bits there, hw_ibrs_recalculate() and
identify_cpu1()/identify_cpu2() need to be adjusted for that.
Submitted and tested by: Michael Danilov <mike.d.ft402@gmail.com>
PR: 227866
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D15236
Ed Maste [Mon, 30 Apr 2018 17:31:06 +0000 (17:31 +0000)]
Disable connectat/bindat with AT_FDCWD in capmode
Previously it was possible to connect a socket (which had the
CAP_CONNECT right) by calling "connectat(AT_FDCWD, ...)" even in
capabilties mode. This combination should be treated the same as a call
to connect (i.e. forbidden in capabilities mode). Similarly for bindat.
Disable connectat/bindat with AT_FDCWD in capabilities mode, fix up the
documentation and add tests.
cxgbe(4): Use opaque cookies or tid range-checks to determine the
intended recipient of a CPL when it can't be determined solely from the
opcode. Retire the per-queue handlers for such CPLs in favor of the new
scheme.
bthidd(8): Add evdev protocol support for bluetooth keyboards and mouses
User-visible changes:
"-u" is added to to list of command line options supported by bthidd.
Use it to enable evdev support. uinput and evdev modules should be
kld-loaded or compiled into the kernel in that case.
bthidd_evdev_support rc.conf variable is added to control enabling of
evdev support in bthidd startup script. Possible values are: "YES", "NO",
"AUTO"(default). Setting bthidd_evdev_support to "AUTO" inserts "-u" option
if kernel is compiled with EVDEV_SUPPORT option enabled.
Support for consumer HID usage page keyboard events is implemented. Most of
them are available only through evdev protocol.
kern.evdev.rcpt_mask sysctl is checked, so "sysctl kern.evdev.rcpt_mask=12"
should be executed if EVDEV_SUPPORT is compiled into kernel.
It is recommended to regenerate bthidd.conf entries with bthidcontrol(8)
"Query" command to set user-friendly names of bluetooth devices.
bthidd(8): Add internal support for user-friendly name of remote devices.
Extend bthidd.conf format to store name of remote Bluetooth HID devices and
implement querying of this information with bthidcontrol(8) "Query" command.
Xin LI [Mon, 30 Apr 2018 05:57:55 +0000 (05:57 +0000)]
Don't bail out from the check if readboot() returns !FSFATAL.
This can happen when the fsinfo signature is invalid, and the
user have choose to fix it, in which case the code would return
FSBOOTMOD (not FSOK but not FSFATAL either).
Ed Maste [Mon, 30 Apr 2018 01:58:24 +0000 (01:58 +0000)]
if_smsc: fix reset check
In smsc_phy_init function, when the driver was trying to reset PHY, it
didn't poll for the correct bit (BMCR_RESET) to be cleared. Instead, it
anded it with MII_BMCR (which is 0), so it just exited the loop.
This issue was fixed in Linux in commit d94609200069.
Submitted by: Arshan Khanifar
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
For the vm_fault_prefault() call from vm_fault_soft_fast(), extend the
scope of the object rlock to avoid re-taking it inside
vm_fault_prefault(). It causes pmap_enter_quick() sometimes called
with shadow object lock as well as the page lock, but this looks
innocent.
Noted and measured by: mjg
Reviewed by: alc, markj (as part of the larger patch)
Tested by: pho (as part of the larger patch)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D15122
Clean up the EXAMPLES section of usbconfig(8). This removes parts that
become redundant after documenting all the subcommands, and switches
to the new syntax, without the '-d'.
Reviewed by: hselasky@
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
GCC warns about the potentially confusing use of the binary AND ('&')
operator with a left operand containing an addition expression. (The
confusion would be around the operator precedence between the + and & infix
operators.) The warning is converted into an error with -Werror.
No functional change.
This construct was actually introduced in r328083, but r333059 (re)moved the
closing parentheses.
For reference, see http://en.cppreference.com/w/c/language/operator_precedence .
pfctl: Don't break connections on skipped interfaces on reload
On reload we used to first flush everything, including the list of skipped
interfaces. This can lead to termination of these connections if they send
packets before the new configuration is applied.
Note that this doesn't currently happen on 12 or 11, because of special EACCES
handling introduced in r315514. This special behaviour in tcp_output() may
change, hence the fix in pfctl.
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