Commit Graph

136950 Commits

Author SHA1 Message Date
cy
2c2e149bfb ipfilter commands, in this case ipf(8), passes its operations and rules
via an ioctl interface. Rules can be added or removed and stats and
counters can be zeroed out. As the ipfilter interprets these
instructions or operations they are stored in an integer called
addrem (add/remove). 1 is add, 2 is remove, and 3 is clear stats and
counters. Much of this is not documented. This commit documents these
operations by replacing simple integers with a self documenting
enum along with a few basic comments.

MFC after:	1 week
2019-07-11 00:08:46 +00:00
markj
98074aa6dd Rename pmap_page_dirty() to pmap_pte_dirty().
This is a precursor to implementing dirty bit management.

Discussed with:	alc
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-07-10 22:52:26 +00:00
imp
582c85345e Enforce a 4GB DMA boundary on isci(4)
This device cannot cross a 4GB boundary with DMA.  Removing the
boundary in r346386 resulted in low frequency memory corruption on
machines with isci(4) controllers.

Submitted by: gallatin@
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D20910
2019-07-10 22:23:59 +00:00
rrs
b80b5fa389 This commit updates rack to what is basically being used at NF as
well as sets in some of the groundwork for committing BBR. The
hpts system is updated as well as some other needed utilities
for the entrance of BBR. This is actually part 1 of 3 more
needed commits which will finally complete with BBRv1 being
added as a new tcp stack.

Sponsored by:	Netflix Inc.
Differential Revision:	https://reviews.freebsd.org/D20834
2019-07-10 20:40:39 +00:00
markj
d8d6907c38 Inherit P2_PROTMAX_{ENABLE,DISABLE} across fork().
Thus, when using proccontrol(1) to disable implicit application of
PROT_MAX within a process, child processes will inherit this setting.

Discussed with:	kib
MFC with:	r349609
Sponsored by:	The FreeBSD Foundation
2019-07-10 19:57:48 +00:00
imp
cb01eccdc7 Fix compile errors with the CI20
Fix mutex includes and fix a typo. The CI20 kernel is not built as
part of universe.

PR: 239115
Submitted by: Kai Nacke
2019-07-10 17:21:59 +00:00
ian
d73817be4d De-pollute arm's sysarch.h.
Instead of including stdint.h for uintptr_t, include sys/_types.h and use
__types for everything that isn't a native C keyword type.

Remove the #include of cdefs.h.  It appears after the include of armreg.h
which has a precondition of cdefs.h being included before it, so everyone
including sysarch.h is already including cdefs.h.  (When armv5 support
goes away, there will be no need include armreg.h here either.)

Unfortunately, the unprefixed struct member names "addr" and "len" cannot
be changed, because 3rd-party software is relying on them (libcompiler_rt
is one known consumer).
2019-07-10 14:34:52 +00:00
avg
9e1efe06c3 linuxcommon: add module version
MFC after:	2 weeks
2019-07-10 13:47:10 +00:00
luporl
2cac894012 [PPC64] pseries: fix realmaxaddr calculation
On POWER9/pseries, QEMU passes several regions of memory,
instead of a single region containing all memory, as the
code was expecting.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D20857
2019-07-10 13:36:17 +00:00
avg
3799b418e9 owc_gpiobus: small formatting cleanup
MFC after:	1 week
2019-07-10 12:40:07 +00:00
tijl
5c4a9b0e32 Let linuxulator mprotect mask unsupported bits before calling kern_mprotect.
After r349240 kern_mprotect returns EINVAL for unsupported bits in the prot
argument.  Linux rtld uses PROT_GROWSDOWN and PROT_GROWS_UP when marking the
stack executable.  Mask these bits like kern_mprotect used to do.  For other
unsupported bits EINVAL is returned like Linux does.

Reviewed by:	trasz, brooks
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20864
2019-07-10 08:19:33 +00:00
hrs
9382dc3112 Add support for RTL8156, 2.5GbE USB network controller, to if_cdce(4).
This chip can be found in Planex USB-LAN2500R.
2019-07-10 05:45:50 +00:00
jhibbits
806cedf404 powerpc: Clamp 32-bit binaries to 32-bit MAXUSER
sv_maxuser specifies the maximum addressable space for user space.  Presently
this is all 64-bits worth, which is impossible for a 32-bit process.

This bug has existed since the initial import of powerpc64 in 2010.

MFC after:	2 weeks
2019-07-10 04:09:15 +00:00
jhb
adf94964be Use 'retval' label for first error in syscallenter().
This is more consistent with the rest of the function and lets us
unindent most of the function.

Reviewed by:	kib
MFC after:	1 month
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D20897
2019-07-09 23:58:12 +00:00
np
2f733b78b1 cxgbe(4): Clear the freelist statistics in the clearstats ioctl.
Move all clearstats code into its own function while here.

MFC after:	1 week
Sponsored by:	Chelsio Communications
2019-07-09 22:24:22 +00:00
alc
6af2f0abb4 Introduce pmap_clear(), which zeroes a page table entry, and use it, instead
of pmap_load_clear(), in places where we don't care about the page table
entry's prior contents.

Eliminate an unnecessary pmap_load() from pmap_remove_all().  Instead, use
the value returned by the pmap_load_clear() on the very next line.  (In the
future, when we support "hardware dirty bit management", using the value
from the pmap_load() rather than the pmap_load_clear() would have actually
been an error because the dirty bit could potentially change between the
pmap_load() and the pmap_load_clear().)

A KASSERT() in pmap_enter(), which originated in the amd64 pmap, was meant
to check the value returned by the pmap_load_clear() on the previous line.
However, we were ignoring the value returned by the pmap_load_clear(), and
so the KASSERT() was not serving its intended purpose.  Use the value
returned by the pmap_load_clear() in the KASSERT().

MFC after:	2 weeks
2019-07-09 20:28:53 +00:00
np
84940e32c4 cxgbe(4): Use the simplest configuration possible when falling back from
the default configuration.

MFC after:	1 week
Sponsored by:	Chelsio Communications
2019-07-09 19:32:31 +00:00
jkim
4de7898e67 MFV: r349861
Import ACPICA 20190703.
2019-07-09 18:02:36 +00:00
whu
42011dc102 hyperv/vmbus: Fix the wrong size in ndis_offload structure
Submitted by:	whu
MFC after:	2 weeks
Sponsored by:	Microsoft
2019-07-09 08:21:14 +00:00
whu
b16c552f6e hyperv/vmbus: Update VMBus version 4.0 and 5.0 support.
Add VMBus protocol version 4.0. and 5.0 to support Windows 10 and newer HyperV hosts.

For VMBus 4.0 and newer HyperV, the netvsc gpadl teardown must be done after vmbus close.

Submitted by:	whu
MFC after:	2 weeks
Sponsored by:	Microsoft
2019-07-09 07:24:18 +00:00
hselasky
66028c137a Put USB ACPI code into own module, uacpi.ko.
The code needs more testing before being enabled by default.

Sponsored by:	Mellanox Technologies
2019-07-08 20:53:25 +00:00
ian
28262d704c Restore the ability for i2c slave devices to do IO from their probe method.
r348164 added code to iicbus_request_bus/iicbus_release_bus to automatically
call device_busy()/device_unbusy() as part of aquiring exclusive use of the
bus (so modules can't be unloaded while the bus is exclusively owned and/or
IO is in progress).  That broke the ability to do i2c IO from a slave device
probe method, because the slave isn't attached yet, so calling device_busy()
triggers a sanity-check panic for trying to busy a non-attached device.

Now we check whether the device status is < DS_ATTACHING, and if so we busy
the iicbus rather than the slave device.  I think this leaves a small window
where a module could be unloaded while probing is in progress.  But I think
that's true of all devices, and probably should be fixed by introducing a
DS_PROBING state for devices, and handling that at various points in the
newbus code.
2019-07-08 20:26:56 +00:00
imp
a5b13b0b5d Fix bugs in recovery path and improve cm tracking
Eliminate the TIMEDOUT state. This state really conveyed two different
concepts: I timed out during recovery (and my command got put on the
recovery queue), and I timed out diring discovery (which doesn't).
Separate those two concepts into two flags. Use the TIMEDOUT flag to
fail requests as timed out. Use the on queue flag to remove them from
the queue.

In mps_intr_locked for MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY message
type, when completing commands, ignore the ones that are not in state
INQUEUE. They were already completed as part of the recovery
process. When we complete them twice, we wind up with entries on the
free queue that are marked as busy, trigging asserts.

Reviewed by: scottl (earlier version, just for mpr)
Differential Revision: https://reviews.freebsd.org/D20785
2019-07-08 20:20:01 +00:00
lwhsu
055cfa1349 - Fix gcc build for superio(4)
- Change string mapping of SUPERIO_DEV_NONE to distinguish from SUPERIO_DEV_MAX

Reviewed by:	imp
Discussed with:	avg, imp, jhb
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20880
2019-07-08 20:01:28 +00:00
lwhsu
7f19ffe6f9 Fix gcc build for cxgbe(4)
Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20879
2019-07-08 19:59:15 +00:00
markj
039f74039e Merge the vm_page hold and wire mechanisms.
The hold_count and wire_count fields of struct vm_page are separate
reference counters with similar semantics.  The remaining essential
differences are that holds are not counted as a reference with respect
to LRU, and holds have an implicit free-on-last unhold semantic whereas
vm_page_unwire() callers must explicitly determine whether to free the
page once the last reference to the page is released.

This change removes the KPIs which directly manipulate hold_count.
Functions such as vm_fault_quick_hold_pages() now return wired pages
instead.  Since r328977 the overhead of maintaining LRU for wired pages
is lower, and in many cases vm_fault_quick_hold_pages() callers would
swap holds for wirings on the returned pages anyway, so with this change
we remove a number of page lock acquisitions.

No functional change is intended.  __FreeBSD_version is bumped.

Reviewed by:	alc, kib
Discussed with:	jeff
Discussed with:	jhb, np (cxgbe)
Tested by:	pho (previous version)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D19247
2019-07-08 19:46:20 +00:00
imp
85531b7acc Work around devices which return all zeros for reads of existing MSI-X
table VCTRL registers.

Unconditionally program the MSI-X vector control Mask field for MSI-X
table entries without regarud for Mask's previous value. Some devices
return all zeros on reads of the VCTRL registers, which would cause us
to skip disabling interrupts. This fixes the Samsung SM961/PM961 SSDs
which are return zero starting from offset 0x3084 within the memory
region specified by BAR0, even when they are active MSI-X vectors.

The Illumos kernel writes these unconditionally to 0 or 1. However,
section 6.8.2.9 of the PCI Local Bus 3.0 spec (dated Feb 3, 2004)
states for bits 31::01:
	After reset, the state of these bits must be 0. However, for
	potential future use, software must preserve the value of
	these reserved bits when modifying the value of other Vector
	Control bits. If software modifies the value of these reserved
	bits, the result is undefined."
so we always set or clear the Mask bit, but otherwise preserves the
old value.

PR: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211713
Reviewed By: imp, jhb
Submitted by: Ka Ho Ng
MFC After: 1 week
Differential Revision: https://reviews.freebsd.org/D20873
2019-07-08 19:38:49 +00:00
hselasky
9558eb04fd Minor code cleanup of USB ACPI code after r349161.
While at it fix an invalid memory access issue when attaching external
USB HUBs, which are not mapped by ACPI, due to missing status check
when calling AcpiGetObjectInfo() from acpi_usb_hub_port_probe_cb().

Sponsored by:	Mellanox Technologies
2019-07-08 19:26:05 +00:00
cy
283db005c5 Update frtuc struct comments. It not only defines TCP things we are
interested in but also UDP.

While at it document the source and destination port variables.

MFC after:	3 days
2019-07-08 19:11:49 +00:00
cy
3bb8c14f92 Correct the description for the low port in the port compare struct.
Adjust the high port description to match that of the low port
description.

MFC after:	3 days
2019-07-08 19:11:35 +00:00
markj
9dc1df00da Elide the vm_reserv_free_page() call when PG_PCPU_CACHE is set.
Pages with PG_PCPU_CACHE set cannot have been allocated from a
reservation, so as an optimization, skip the call to
vm_reserv_free_page() in this case.  Otherwise, the access of
the corresponding reservation structure often results in a cache
miss.

Reviewed by:	alc, kib
Discussed with:	jeff
MFC after:	2 weeks
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20859
2019-07-08 19:02:40 +00:00
markj
34fff2c5cb Add a per-CPU page cache per VM free pool.
Some workloads benefit from having a per-CPU cache for
VM_FREEPOOL_DIRECT pages.

Reviewed by:	dougm, kib
Discussed with:	alc, jeff
MFC after:	2 weeks
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20858
2019-07-08 18:56:30 +00:00
ian
5800e32a4c Call device_unbusy() on the error exit path, because if iicbus_request_bus()
returns an error, iicbus_release_bus() is not going to be called.
2019-07-08 18:29:37 +00:00
vangyzen
0b59e5e20e Ignore kern.vt.splash_cpu without graphics
When the system has no graphical console, such as bhyve in common
configurations, ignore kern.vt.splash_cpu, instead of panicking
on INVARIANTS kernels.

Reviewed by:	cem dumbbell
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D20877
2019-07-08 13:46:26 +00:00
luporl
0bdbde9a09 [PPC] Add missing SLB allocation KASSERT
Although PPC SLB code doesn't handle allocation failures,
which are rare, in most places it asserts that the pointer
returned by uma_zalloc() is not NULL, making it easier to
identify the failure and avoiding an invalid pointer dereference.

This change simply adds a missing KASSERT in SLB code.
2019-07-08 13:01:54 +00:00
fsu
046654912a Add additional check for 'blocks per group' and 'fragments per group' superblock fields.
These fields will not be equal only in case if bigalloc filesystem feature is turned on.
This feature is not supported for now.

Reported by:    Christopher Krah, Thomas Barabosch, and Jan-Niclas Hilgert of Fraunhofer FKIE
Reported as:    FS-27-EXT2-12: Denial of Service in openat-0 (vm_fault_hold/ext2_clusteracct)

MFC after:	2 weeks
2019-07-07 08:58:02 +00:00
fsu
089a21b889 Remove ufs fragments logic.
The ext2fs fragments are different from ufs fragments.
In case of ext2fs the fragment should be equal or more then block size.
The values more than block size are used only in case of bigalloc feature, which is does not supported for now.

Reported by:    Christopher Krah, Thomas Barabosch, and Jan-Niclas Hilgert of Fraunhofer FKIE
Reported as:    FS-22-EXT2-9: Denial of service in ftruncate-0 (ext2_balloc)

MFC after:	2 weeks
2019-07-07 08:56:13 +00:00
fsu
37919d6102 Remove unneeded mount point unlock call.
Reported by:    Christopher Krah, Thomas Barabosch, and Jan-Niclas Hilgert of Fraunhofer FKIE
Reported as:    FS-11-EXT2-6: Denial Of Service in write-1 (ext2_balloc)

MFC after:	2 weeks
2019-07-07 08:53:52 +00:00
dougm
e853380451 A style-related change, r349791, made unclear the meaning of a
comment. Rewrite that comment to improve its clarity.

Reported by: cem
Reviewed by: alc, cem
Approved by: kib, markj (mentors, implicit)
Differential Revision: https://reviews.freebsd.org/D20871
2019-07-07 06:57:04 +00:00
alc
6b5e2b6223 Three changes to pmap_enter():
1. Use _pmap_alloc_l3() instead of pmap_alloc_l3() in order to handle the
possibility that a superpage mapping for "va" was created while we slept.
(This is derived from the amd64 version.)

2. Eliminate code for allocating kernel page table pages.  Kernel page
table pages are preallocated by pmap_growkernel().

3. Eliminate duplicated unlock operations when KERN_RESOURCE_SHORTAGE is
returned.

MFC after:	2 weeks
2019-07-07 06:06:48 +00:00
dougm
2c610cf7b5 Fix style(9) violations involving division by PAGE_SIZE.
Reviewed by: alc
Approved by: markj (mentor)
Differential Revision: https://reviews.freebsd.org/D20847
2019-07-06 15:55:16 +00:00
dougm
75b709b489 Change blist_next_leaf_alloc so that it can examine more than one leaf
after the one where the possible block allocation begins, and allocate
a larger number of blocks than the current limit. This does not affect
the limit on minimum allocation size, which still cannot exceed
BLIST_MAX_ALLOC.

Use this change to modify swp_pager_getswapspace and its callers, so
that they can allocate more than BLIST_MAX_ALLOC blocks if they are
available.

Tested by: pho
Approved by: markj (mentor)
Differential Revision: https://reviews.freebsd.org/D20579
2019-07-06 06:15:03 +00:00
alc
1b381cfc3c Restructure cache_handle_range to avoid repeated barriers. Specifically,
restructure cache_handle_range so that all of the data cache operations are
performed before any instruction cache operations.  Then, we only need one
barrier between the data and instruction cache operations and one barrier
after the instruction cache operations.

On an Amazon EC2 a1.2xlarge instance, this simple change reduces the time
for a "make -j8 buildworld" by 9%.

Reviewed by:	andrew
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D20848
2019-07-05 20:01:06 +00:00
dougm
d707ae5ef8 Based on work posted at https://reviews.freebsd.org/D13484, change
swap_pager_swapoff_object and swp_pager_force_pagein so that they can
page in multiple pages at a time to a swap device, rather than doing
one I/O operation for each page.

Tested by: pho
Submitted by: ota_j.email.ne.jp (Yoshihiro Ota)
Reviewed by: alc, markj, kib
Approved by: kib, markj (mentors)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D20635
2019-07-05 16:49:34 +00:00
alc
93d0ca1e9d Merge r349526 from amd64. When we protect an L3 entry, we only call
vm_page_dirty() when, in fact, we are write protecting the page and the L3
entry has PTE_D set.  However, pmap_protect() was always calling
vm_page_dirty() when an L2 entry has PTE_D set.  Handle L2 entries the
same as L3 entries so that we won't perform unnecessary calls to
vm_page_dirty().

Simplify the loop calling vm_page_dirty() on L2 entries.
2019-07-05 05:23:23 +00:00
vmaffione
8899f2676e netmap: Remove pointer leakage in netmap_mem2.c
PR:		238641
Submitted by:	Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed by:	vmaffione
MFC after:	1 week
2019-07-04 21:31:49 +00:00
vmaffione
79f73ddaa4 netmap: fix kernel pointer printing in netmap_generic.c
Print the adapter name rather than the address of the adapter
to avoid kernel address leakage.

PR:		Bug 238642
Submitted by:	Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed by:	vmaffione
MFC after:	1 week
2019-07-04 21:11:45 +00:00
emaste
f6ef3ada2d Update Linux compat version to 2.6.36
New system calls between 2.6.32 and 2.6.26 are already implemented.

This should be mostly NFC as far as contemporary Linux applications are
concerned though, as Linux kernel 3.2 is the oldest supported by a
number of popular distros today; work is in progress by others to enable
support for those applications.

Discussed with:	trasz
MFC after:	1 month
2019-07-04 20:42:08 +00:00
trasz
fded509cb9 Return ENOTSUP for Linux FS_IOC_FIEMAP ioctl.
Linux man(1) calls it for no good reason; this avoids the console spam
(eg '(man): ioctl fd=4, cmd=0x660b ('f',11) is not implemented').

Reviewed by:	emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20690
2019-07-04 20:16:04 +00:00
trasz
eea94a5c4c Add support for PTRACE_O_TRACEEXIT to linuxulator ptrace(2).
This fixes strace 4.25 from Ubuntu 19.04.

Reviewed by:	emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20689
2019-07-04 19:46:58 +00:00