mav [Wed, 30 Aug 2017 21:16:32 +0000 (21:16 +0000)]
Add NTB driver for PLX/Avago/Broadcom PCIe switches.
This driver supports both NTB-to-NTB and NTB-to-Root Port modes (though
the second with predictable complications on hot-plug and reboot events).
I tested it with PEX 8717 and PEX 8733 chips, but expect it should work
with many other compatible ones too. It supports up to two NT bridges
per chip, each of which can have up to 2 64-bit or 4 32-bit memory windows,
6 or 12 scratchpad registers and 16 doorbells. There are also 4 DMA engines
in those chips, but they are not yet supported.
While there, rename Intel NTB driver from generic ntb_hw(4) to more specific
ntb_hw_intel(4), so now it is on par with this new ntb_hw_plx(4) driver and
alike to Linux naming.
jhb [Wed, 30 Aug 2017 20:00:15 +0000 (20:00 +0000)]
Compile reloc.o with -fno-jump-tables on MIPS.
In particular, the switch statement on the type of dynamic entries
in _rtld_relocate_nonplt_self() needs to not use a jump table since
jump tables on MIPS use local GOT entries which aren't initialized
until after this loop.
jhb [Wed, 30 Aug 2017 19:21:11 +0000 (19:21 +0000)]
Apply 64k padding to stack pointer for 32-bit processes.
In particular, MIPS now has COMPAT_FREEBSD32 for n64 kernels so this
cannot be ignored for n64. On the other hand, it is unneeded for o32
MIPS kernels as the issue is only present when using 64-bit registers,
so remove the workaround from o32 kernels.
jhb [Wed, 30 Aug 2017 19:19:31 +0000 (19:19 +0000)]
Don't include GNU object attributes when building with clang.
LLVM's MIPS assembler parser does not understand the GNU as
'.gnu_attribute' keyword. This could be re-enabled if LLVM is updated
in the future. The desired floating point ABI is already described in
the .MIPS.abiflags section.
jhb [Wed, 30 Aug 2017 15:45:23 +0000 (15:45 +0000)]
Decode signal information returned by system calls.
Specifically, decode the siginfo structure returned by sigtimedwait(),
sigwaitinfo(), and wait6(). While here, also decode the signal number
returned in the second argument to sigwait().
sobomax [Wed, 30 Aug 2017 15:07:10 +0000 (15:07 +0000)]
Add proper support for the md_label into md(4) ioctl compat layer.
While I am here, declare struct md_ioctl32 as packed which allows
us to stop playing tricks with sizeof(md_ioctl32)+y as well as
simplifies md_pad handling. Both were necessary because of different
alignment preferences on amd64 vs i386.
ed [Wed, 30 Aug 2017 07:30:06 +0000 (07:30 +0000)]
Complete the CloudABI networking refactoring.
Now that all of the packaged software has been adjusted to either use
Flower (https://github.com/NuxiNL/flower) for making incoming/outgoing
network connections or can have connections injected, there is no longer
need to keep accept() around. It is now a lot easier to write networked
services that are address family independent, dual-stack, testable, etc.
Remove all of the bits related to accept(), but also to
getsockopt(SO_ACCEPTCONN).
np [Tue, 29 Aug 2017 23:37:26 +0000 (23:37 +0000)]
cxgbe(4): Update T6/T5/T4 firmwares to 1.16.59.0.
These firmwares come from a pre-release snapshot. The final firmwares
in this Chelsio release cycle will likely be .61.0 or later and those
will be the next "long lived" firmwares in FreeBSD head and stable
branches. .59 is being provided in head (only) for wider test exposure.
rlibby [Tue, 29 Aug 2017 22:32:29 +0000 (22:32 +0000)]
lib/msun: avoid referring to broken LDBL_MAX
LDBL_MAX is broken on i386:
https://lists.freebsd.org/pipermail/freebsd-numerics/2012-September/000288.html
Gcc has produced +Infinity for LDBL_MAX on i386 and amd64 with -m32
for some time, and newer versions of gcc are now warning that the
"floating constant exceeds range of 'long double'". Avoid this by
referring to proxy values instead.
emaste [Tue, 29 Aug 2017 22:24:22 +0000 (22:24 +0000)]
zfs: do not advertise edonr which is not yet supported
illumos 4185 ("add new cryptographic checksums to ZFS: SHA-512,
Skein, Edon-R") was intentionally merged only partially in r289422,
without adding support for skein, sha512 and edonr on FreeBSD.
Support for skein and sha512 was added later on, but edonr is still not
implemented in FreeBSD.
Prior to this commit zfs(8) correctly rejected edonr, but with an error
message that claimed support:
fk@r500 ~ $zfs set checksum=edonr tank
cannot set property for 'tank': 'checksum' must be one of 'on | off | fletcher2 | fletcher4 | sha256 | sha512 | skein | edonr'
dim [Tue, 29 Aug 2017 21:45:00 +0000 (21:45 +0000)]
In compiler-rt, a few assembler implementations for i386 floating point
conversion functions use SSE2 instructions, but these are not guarded by
#ifdef __SSE2__, and there is no implementation using general purpose
registers. For these functions, use the generic C variants instead,
otherwise they will cause SIGILL on older processors.
imp [Tue, 29 Aug 2017 17:03:30 +0000 (17:03 +0000)]
Fix NVMe's use of XPT_GDEV_TYPE
This patch changes the way XPT_GDEV_TYPE works for NVMe. The current
ccb_getdev structure includes pointers to the NVMe Identify Controller
and Namespace structures, but these are kernel virtual addresses which
are not accessible from user space.
As an alternative, the patch changes the pointers into padding in
ccb_getdev and adds two new types to ccb_dev_advinfo to retrieve the
Identify Controller (CDAI_TYPE_NVME_CNTRL) and Namespace
(CDAI_TYPE_NVME_NS) data structures.
imp [Tue, 29 Aug 2017 15:46:34 +0000 (15:46 +0000)]
Fix a few overlooked spots where the coded uses 16-bit NSIDs. Chuck
Tuffli had submitted a more thorough patch that I was unaware of when
I did my work and this brings in the bits I missed from that patch.
imp [Mon, 28 Aug 2017 23:54:25 +0000 (23:54 +0000)]
Add new compile-time option NVME_USE_NVD that sets the default value
of the runtime hw.nvme.use_vnd tunable. We still default to nvd unless
otherwise requested.
imp [Mon, 28 Aug 2017 23:54:20 +0000 (23:54 +0000)]
Set the max transactions for NVMe drives better.
Provided a better estimate for the number of transactions that can be
pending at one time. This will be number of queues * number of
trackers / 4, as suggested by Jim Harris. This gives a better estimate
of the number of transactions that CAM should queue before applying
back pressure. This should be revisted when we have real multi-queue
support in CAM and the upper layers of the I/O stack.
cem [Mon, 28 Aug 2017 22:28:41 +0000 (22:28 +0000)]
Drop CACHE_LINE_SIZE to 64 bytes on x86
The actual cache line size has always been 64 bytes.
The 128 number arose as an optimization for Core 2 era Intel processors. By
default (configurable in BIOS), these CPUs would prefetch adjacent cache
lines unintelligently. Newer CPUs prefetch more intelligently.
The latest Core 2 era CPU was introduced in September 2008 (Xeon 7400
series, "Dunnington"). If you are still using one of these CPUs, especially
in a multi-socket configuration, consider locating the "adjacent cache line
prefetch" option in BIOS and disabling it.
markj [Mon, 28 Aug 2017 22:10:15 +0000 (22:10 +0000)]
Synchronize page laundering with pmap_extract_and_hold().
Before r207410, the hold count of a page in a page queue was protected
by the queue lock, and, before laundering a page, the page daemon
removed managed writeable mappings of the page before releasing the
queue lock. This ensured that other threads could not concurrently
create transient writeable mappings using pmap_extract_and_hold() on a
user map, as is done for example by vmapbuf(). With that revision,
however, a race can allow the creation of such a mapping, meaning that
the page might be modified as it is being laundered, potentially
resulting in it being marked clean when its contents do not match
those given to the pager. Close the race by using the page lock to
synchronize the hold count check in vm_pageout_cluster() with the
removal of writeable managed mappings.
marius [Mon, 28 Aug 2017 22:09:12 +0000 (22:09 +0000)]
Don't set any WOL enabling hardware bits if WOL isn't requested
according to the enabled interface capability bits. Also remove
some dead code, which tried to preserve already set contents of
E1000_WUC while that register is completely overwritten shortly
after in all cases.
kib [Mon, 28 Aug 2017 20:52:32 +0000 (20:52 +0000)]
Verify that the BPB media descriptor and FAT ID match.
FAT specification requires that for valid FAT, FAT cluster 0 has a
specific value derived from the BPB media descriptor. The lowest
(little-endian) byte must be equal to bpb.bpbMedia, other bits in the
cluster number must be all 1's. Implement the check to reduce the
chance of the randomly corrupted FAT to pass the mount attempt.
mav [Mon, 28 Aug 2017 20:00:21 +0000 (20:00 +0000)]
Mask doorbells while processing them.
This fixes interrupt storms on hardware using legacy level-triggered
interrupts, since doorbell processing could take time after interrupt
handler completion, that triggered extra interrupts in a loop.
mav [Mon, 28 Aug 2017 19:52:57 +0000 (19:52 +0000)]
Fix fake interrupt when set doorbell is unmasked.
Since the doorbell bit is already set when interrupt handler is called,
the event was not propagated to upper layer. It was working normally
because present code was not using masking actively, but that is going
to change.
bdrewery [Mon, 28 Aug 2017 19:29:51 +0000 (19:29 +0000)]
Allow vdrop() of a vnode not yet on the per-mount list after r306512.
The old code allowed calling vdrop() before insmntque() to place the vnode back
onto the freelist for later recycling. Some downstream consumers may rely on
this support. Normally insmntque() failing is fine since is uses vgone() and
immediately frees the vnode rather than attempting to add it to the freelist if
vdrop() were used instead.
Also assert that vhold() cannot be used on such a vnode.
alc [Mon, 28 Aug 2017 17:02:25 +0000 (17:02 +0000)]
Update a couple vm_object lock assertions in the swap pager to reflect the
new use of the vm_object's lock to synchronize updates to a radix trie
mapping per-vm object page indices to on-disk swap blocks.
alc [Mon, 28 Aug 2017 16:55:43 +0000 (16:55 +0000)]
Switching from a global hash table to per-vm_object radix tries for mapping
vm_object page indices to on-disk swap space (r322913) has changed the
synchronization requirements for a couple swap pager functions. Whereas
before a read lock on the vm object sufficed because of the global mutex
on the hash table, a write lock on the vm object may now be required. In
particular, calls to vm_pager_page_unswapped() now require a write lock on
the vm_object. Consequently, vm_fault()'s fast path cannot call
vm_pager_page_unswapped(). The swap space will have to be released at a
later point.
sobomax [Mon, 28 Aug 2017 15:54:07 +0000 (15:54 +0000)]
Add ability to label md(4) devices.
This feature comes from the fact that we rely memory-backed md(4)
in our build process heavily. However, if the build goes haywire
the allocated resources (i.e. swap and memory-backed md(4)'s) need
to be purged. It is extremely useful to have ability to attach
arbitrary labels to each of the virtual disks so that they can
be identified and GC'ed if neecessary.
tuexen [Mon, 28 Aug 2017 11:41:18 +0000 (11:41 +0000)]
Fix blackhole detection.
There were two bugs related to the blackhole detection:
* The smalles size was tried more than two times.
* The restored MSS was not the original one, but the second
candidate.
ed [Mon, 28 Aug 2017 09:35:17 +0000 (09:35 +0000)]
Make _Static_assert() work with GCC in older C++ standards.
GCC only activates C11 keywords in C mode, not C++ mode. This means
that when targeting an older C++ standard, we cannot fall back to using
_Static_assert(). In this case, do define _Static_assert() as a macro
that uses a typedef'ed array.
jhb [Mon, 28 Aug 2017 02:42:20 +0000 (02:42 +0000)]
Decode extra signal information for caught signals.
Decode fields from the siginfo_t stored in the PT_LWPINFO structure when a
signal is caught by a traced process. This includes the signal code
(si_code) as well as additional members such as si_addr, si_pid, etc.
ngie [Sun, 27 Aug 2017 16:15:37 +0000 (16:15 +0000)]
Respect MK_TCSH with build-tools and native-xtools
This helps reduce the WORLDTMP footprint slightly.
Based on a patch I submitted 5 years ago to GNATS.
PR: 174051
MFC after: 2 weeks
Relnotes: yes (anyone who cross-builds with MK_TCSH=yes will run into
build failures if the host doesn't have tcsh(1))
Reminded by: Fabian Keil <fk@fabiankeil.de>
avos [Sun, 27 Aug 2017 12:44:56 +0000 (12:44 +0000)]
rtwn(4): change type for Tx power values (RTL8192C / RTL8188EU).
Tx power values can easily fit into uint8_t + only 8 bits are written
to registers; values may overflow only in case if ROM contains
malformed data (but limit is checked anyway).
Tested with RTL8188CUS, dev.rtwn.1.debug=0x2000 (no changes).
scottl [Sun, 27 Aug 2017 06:24:06 +0000 (06:24 +0000)]
Start overhauling debug printing in the MPS and MPR drivers. The focus of this
commit it to make initiazation less chatty in the normal case, and more useful
and informative when real debugging is turned on.
Reviewed by: ken (earlier version)
Sponsored by: Netflix
cem [Sun, 27 Aug 2017 05:14:48 +0000 (05:14 +0000)]
Improve scheduler performance
Improve scheduler performance by flattening nonsensical topology layers
(layers with only one child don't serve any purpose).
This is especially relevant on non-AMD Zen systems after r322776. On my
dual core Intel laptop, this brings the kern.sched.topology_spec table down
from three levels to two.
imp [Sun, 27 Aug 2017 03:10:16 +0000 (03:10 +0000)]
Eliminate redunant device path matching.
Use efi_devpath_match instead of device_paths_match. They are
functionally the same. Remove device_paths_match from boot1.c and call
efi_devpath_match instead.
imp [Sat, 26 Aug 2017 23:04:19 +0000 (23:04 +0000)]
Use efi_devpath_str for debug path info.
Kill our own hand-rolled (and somewhat flawed) devpath_str in favor of
the recently added efi_devpath_str in libefi. This gives us much
better names at the expense of not being able to debug on EFI 1.2
machines (since the UEFI protocol efi_devpath_str depends on was added
in UEFI 2.0). However, this isn't the first thing that requires newer
than EFI 1.2, so it's quite possible that this doesn't change the
universe of machines we can EFI boot from. This will now give us the
full UEFI path, even for devices we don't yet know about. More
importantly, it gives us the full HD(...) part of the path, which is
sufficient by itself to locate disks that follow the rules (dd one
disk (but not partition) to another still needs the rest of the path
to disambiguate, but that isn't following the rules that require every
GPT table to have globally unique GUIDs for every partion).
This also has the side effect of shrinking boot1.efi by ~3k.
imp [Sat, 26 Aug 2017 18:29:58 +0000 (18:29 +0000)]
Fix warnings due to type mismatch.
Cast ctxp to caddr_t to pass data as expected. While void * is a
universal type, char * isn't (and that's what caddr_t is defined as).
One could argue these prototypes should take void * rather than
caddr_t, but changing that is much more invasive.
imp [Sat, 26 Aug 2017 18:29:24 +0000 (18:29 +0000)]
Move efi_main into efi/loader
Move the efi_main routine out of libefi into sys/boot/efi/loader.
Since boot1 has its own efi_main routine, this effectively prevents
boot1 from linking with libefi. By moving it out, we can share code
better (though though some refactoring with boot1's efi_main and
loader.efi's efi_main is definitely in order).
kib [Sat, 26 Aug 2017 18:12:25 +0000 (18:12 +0000)]
MFamd64 r322720, r322723:
Simplify i386 trap().
- Use more relevant name 'signo' instead of 'i' for the local variable
which contains a signal number to send for the current exception.
- Eliminate two labels 'userout' and 'out' which point to the very end
of the trap() function. Instead use return directly.
- Re-indent the prot_fault_translation block by reducing if() nesting.
- Some more monor style changes.
Reviewed by: bde
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
pfg [Sat, 26 Aug 2017 16:11:21 +0000 (16:11 +0000)]
libc: minor indent(1) cleanups.
Illumos and Schillix is adopting some of the locale code and our style(9)
sometimes matches the Solaris cstyle, so the changes are also useful as a
way to reduce diffs.
andrew [Sat, 26 Aug 2017 15:08:27 +0000 (15:08 +0000)]
Work around a bug in QEMU when loading data with a load pair instruction
where the source register is also the first destination register.
If this is the case, and we raise an exception in the middle of the
instruction, for example the load is across two pages and the second page
isn't mapped, QEMU will have overwritten the address with invalid data.
This is a valid behaviour in most cases, with the exception of when a
destination register is also use in address generation. As such switch
the order of the registers to ensure the address register is second so it
will be written to second, after any exceptions have happened.
This has been acknowledged in upstream QEMU, however as the workaround is
simple also handle it here.
kib [Fri, 25 Aug 2017 23:13:21 +0000 (23:13 +0000)]
Replace global swhash in swap pager with per-object trie to track swap
blocks assigned to the object pages.
- The global swhash_mtx is removed, trie is synchronized by the
corresponding object lock.
- The swp_pager_meta_free_all() function used during object
termination is optimized by only looking at the trie instead of
having to search whole hash for the swap blocks owned by the object.
- On swap_pager_swapoff(), instead of iterating over the swhash,
global object list have to be inspected. There, we have to ensure
that we do see valid trie content if we see that the object type is
swap.
Sizing of the swblk zone is same as for swblock zone, each swblk maps
SWAP_META_PAGES pages.
jhb [Fri, 25 Aug 2017 23:10:27 +0000 (23:10 +0000)]
Don't grab SOCK_LOCK for soref() when queuing an AIO request.
The AIO job holds a reference on the associated file descriptor, so the
socket's count should already be > 0. This fixes a LOR with the socket
buffer lock after recent socket locking changes in HEAD.
sbruno [Fri, 25 Aug 2017 22:38:55 +0000 (22:38 +0000)]
Add a different #define for the maximum number of transmit and
recieve descriptors for the igb(4) class of devices. This will
allow a better definition for maximum going forward. Some igb(4)
devices support more than the default 4K.
Reported by: Jason (j@nitrology.com)
Sponsored by: Limelight Networks
imp [Fri, 25 Aug 2017 21:38:43 +0000 (21:38 +0000)]
Fill in reserved areas from NVMe spec in the IDENTIFY structure
(struct nvme_controller_data) as defined in the NVM Express
specification, revsion 1.3.
projects / FreeBSD / FreeBSD.git / log