markj [Mon, 7 Dec 2015 21:57:36 +0000 (21:57 +0000)]
Fix a discrepancy in r291738.
The script that generates these makefiles was changed to modify LIBADD
rather than LDADD/DPADD, but the makefile itself was also changed in a
slightly different way.
markj [Mon, 7 Dec 2015 21:49:32 +0000 (21:49 +0000)]
MFV r289003:
6271 dtrace caused excessive fork time
Author: Bryan Cantrill <bryan@joyent.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Gordon Ross <gwr@nexenta.com>
markj [Mon, 7 Dec 2015 21:44:05 +0000 (21:44 +0000)]
Modify DTRACEHIOC_ADDDOF to copy the DOF section from the target process.
r281257 added support for lazyload mode by allowing dtrace(1) to register
a DOF section on behalf of a traced process. This was implemented by
having libdtrace copy the DOF section into a heap-allocated buffer and
passing its address to the ioctl handler. However, DTrace uses the DOF
section address as a lookup key in certain cases, so the ioctl handler
should be given the target process' DOF section address instead. This
change modifies the ADDDOF handler to copy the DOF section in from the
target process, rather than from dtrace(1).
markj [Mon, 7 Dec 2015 21:33:15 +0000 (21:33 +0000)]
Add helper functions proc_readmem() and proc_writemem().
These helper functions can be used to read in or write a buffer from or to
an arbitrary process' address space. Without them, this can only be done
using proc_rwmem(), which requires the caller to fill out a uio. This is
onerous and results in code duplication; the new functions provide a simpler
interface which is sufficient for most existing callers of proc_rwmem().
This change also adds a manual page for proc_rwmem() and the new functions.
ken [Mon, 7 Dec 2015 21:04:27 +0000 (21:04 +0000)]
The ccb_xflags enumeration was removed from FreeBSD/head in
r259397 (it contained the CAM_EXTLUN_VALID bit) and I added the
same type name with a different set of values back in r291716.
The old ccb_xflags enumeration still exists in FreeBSD stable/10.
Shift all of the new values by one bit to avoid compatibility
issues when merged to stable/10.
bapt [Mon, 7 Dec 2015 20:48:28 +0000 (20:48 +0000)]
Fix ls -l alignement with new locales
Latest update of locales introduced abbreviated month that follows the regionale
rules meaning that they can be of variable length instead of being arbitrary
truncated to top 3 characters.
To fix alignement, ls now computes the visible length of the abbreviated month,
pads the shorter month with spaces in order to make sure everything is properly
aligned
emaste [Mon, 7 Dec 2015 20:21:12 +0000 (20:21 +0000)]
elfcopy: exclude extension when converting from binary
When converting from binary to ELF, elfcopy creates symbols
_binary_<filename>_start_, _binary_<filename>_end, and
_binary_<filename>_size. For compatibility with GNU objcopy (and to
produce sensible symbol names) the extension must be stripped off.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4238
emaste [Mon, 7 Dec 2015 19:15:52 +0000 (19:15 +0000)]
Build and install userland .debug files by default
Debug data files are now built by default with 'make buildworld' and
installed with 'make installworld'. This facilitates debugging but
requires more disk space both during the build and for the installed
world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
in src.conf(5).
Reviewed by: bdrewery, eadler, vangyzen
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4018
hselasky [Mon, 7 Dec 2015 18:55:33 +0000 (18:55 +0000)]
When setting up VLANs on a Raspberry Pi ethernet port, the MTU drops
from 1500 to 1496 bytes. The MTU should remain at 1500, extending the
frame size as per IEEE 802.3. Adding IFCAP_VLAN_MTU to the
if_capabilities field in the smsc driver solves the problem. The
datasheet for the LAN9512 chip, section 3.2.3 states that the chip
supports the extended frame.
jhb [Mon, 7 Dec 2015 16:27:11 +0000 (16:27 +0000)]
Set %esp correctly in the extended TSS.
The pcb is saved at the top of the kernel stack on x86 platforms.
The initial kenrel stack pointer is set in the TSS so that the trapframe
from user -> kernel transitions begins directly below the pcb and grows
down.
The XSAVE changes moved the FPU save area out of the pcb and into a
variable-sized area after the pcb. This required updating the expressions
to calculate the initial stack pointer from 'stacktop - sizeof(pcb)' to
'stacktop - sizeof(pcb) + FPU save area size'.
The i386_set_ioperm() system call allows user applications to access
individual I/O ports via the I/O port permission bitmap in the TSS.
On FreeBSD this requires allocating a custom per-process TSS instead of
using the shared per-CPU TSS.
The expression to initialize the initial kernel stack pointer in the
per-process TSS created for i386_set_ioperm() was not properly updated
after the XSAVE changes. Processes that used i386_set_ioperm() would
trash the trapframe during subsequent context switches resulting in
panics from memory corruption.
This changes fixes the kernel stack pointer calculation for the per-process
TSS.
bdrewery [Mon, 7 Dec 2015 16:08:22 +0000 (16:08 +0000)]
FAST_DEPEND: Only pass -MF if we care about the object being compiled.
This will save time generating dependency files that we didn't expect
due to cases where SRCS!=OBJS or for building custom targetted objects
in Makefiles that do not end up in the DEPENDOBJS list.
This uses a bmake trick to modify CFLAGS based on ${.TARGET}. A
.PARSEDIR check is done for the sake of MFC safety.
bdrewery [Mon, 7 Dec 2015 16:08:16 +0000 (16:08 +0000)]
FAST_DEPEND: Only try to use dependencies from C/C++ SRCS as mkdep did.
Rather than try to guess at all of the OBJS variables just use SRCS
using the same patterns that mkdep does. This also fixes a mistake
where dependencies were being generated with FAST_DEPEND when they were
not for mkdep. This happens when OBJS!=SRCS as is the case in
gnu/lib/csu where SRCS has 1 file and OBJS has several other files that
does not even contain the 1 SRCS file. Generally in these cases the
OBJS have custom dependencies defined in their Makefile. If we generate
dependencies for those and then load a .depend file, then .IMPSRC may
contain duplicate sources and lead to errors such as:
cc: error: cannot specify -o when generating multiple output files
bdrewery [Mon, 7 Dec 2015 16:08:09 +0000 (16:08 +0000)]
Replace unneeded manual dependency on header by adding it to SRCS.
bsd.lib.mk and bsd.prog.mk already depend all objs on headers in SRCS if
there is not yet a depend file. The headers in SRCS are never built or
installed. After 'make depend' the header was already added as a proper
dependency on the objects where needed.
hselasky [Mon, 7 Dec 2015 13:16:48 +0000 (13:16 +0000)]
Update the mlx5 shared driver code to the latest version, which
include the following list of changes:
- Added eswitch ACL table management
Introduce API for managing ACL table.
This API include the following features:
1) vlan filter - for VST/VGT+ support.
2) spoofcheck.
3) robust functionality to allow/drop general untagged/tagged traffic.
4) support for both ingress and egress ACL types.
- Added loopback filter to the vacl table.
- Added multicast list set in the vPort context
- Added promiscuous mode set in the vPort context
- Set the vlan list in vPort context
1) Check caps if VLAN list is not longer than FW supports
2) Set MODIFY_NIC_VPORT_CONTEXT command
- Changed MLX5_EEPROM_MAX_BYTES from 48 to 32 so that a single EEPROM
reading cannot cross the 128-byte boundary. Previously reading the
MCIA register was done in batches of 48 bytes. The third reading
would then by-pass the 127th byte, which means that part of the low
page and part of the high page would be read at the same time, which
created a bug:
1st: 0-47 bytes
2nd: 48-95 bytes
3rd: 96-143 bytes
hselasky [Mon, 7 Dec 2015 12:38:51 +0000 (12:38 +0000)]
Add full support for Receive Side Scaling, RSS, to the mlx5en
driver. This includes binding all interrupt and worker threads
according to the RSS configuration, setting up correct Toeplitz
hashing keys as given by RSS and setting the correct mbuf
hashtype for all received traffic.
kib [Mon, 7 Dec 2015 12:20:26 +0000 (12:20 +0000)]
Add support for usermode (vdso-like) gettimeofday(2) and
clock_gettime(2) on ARMv7 and ARMv8 systems which have architectural
generic timer hardware. It is similar how the RDTSC timer is used in
userspace on x86.
Fix a permission problem where generic timer access from EL0 (or
userspace on v7) was not properly initialized on APs.
For ARMv7, mark the stack non-executable. The shared page is added for
all arms (including ARMv8 64bit), and the signal trampoline code is
moved to the page.
Reviewed by: andrew
Discussed with: emaste, mmel
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D4209
kib [Mon, 7 Dec 2015 12:09:04 +0000 (12:09 +0000)]
Update ctime when atime or birthtime are updated.
Cleanup setting of ctime/mtime/birthtime: do not set IN_ACCESS or
IN_UPDATE, then clear them with ufs_itimes(), making transient
(possibly inconsistent) change to the times, and then copy
user-supplied times into the inode. Instead, directly clear IN_ACCESS
or IN_UPDATE when user supplied the time, and copy the value into the
inode.
Minor inconsistency left is that the inode ctime is updated even when
birthtime update attempt is performed on a UFS1 volume.
hselasky [Mon, 7 Dec 2015 11:04:50 +0000 (11:04 +0000)]
Add support for setting the TX moderation mode via a sysctl entry. TX
completion events can be moderated in the same way like RX completion
events. Expose this functionality by a sysctl variable.
imp [Mon, 7 Dec 2015 10:24:40 +0000 (10:24 +0000)]
Start to split apart the different image formats that we need to
make. Add support for generating powerpc64 qemu images. We
can generate them, but there's something wrong booting them.
This also simplifies the user config files a bit, and removes
bits no longer true.
arybchik [Mon, 7 Dec 2015 06:04:24 +0000 (06:04 +0000)]
sfxge: switch to TxQ creation specific flags
It is better do not mix TxQ creation and receive event flags since only
checksum flags are applicable to TxQ.
Also it will allow to add a new TxQ creation specific flags.
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D4389
arybchik [Mon, 7 Dec 2015 05:59:24 +0000 (05:59 +0000)]
sfxge: support PERMIT_SET_MAC_WHEN_FILTERS_INSTALLED flag
Use flag on vadapter alloc when reported as a supported capability.
Use the slow device reset only when the capability is missing.
Submitted by: Richard Houldsworth <rhouldsworth at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D4387
imp [Mon, 7 Dec 2015 04:02:52 +0000 (04:02 +0000)]
Fix up mtree with additional entries written to it by
nanobsd. implement support for NanoBSD touching a file (and possibly
recording that fact) as well as replacing a directory with a symlink.
Also specify the default uname and gname for files and use that as a
/set command at the top of the generated METALOG file.
smh [Mon, 7 Dec 2015 02:56:08 +0000 (02:56 +0000)]
Fix panic on shutdown due to iscsi event priority
iscsi's shutdown_pre_sync prio was SHUTDOWN_PRI_FIRST which caused it to
run before other high priority handlers such as filesystems e.g. ZFS.
This meant the iscsi sessions where removed before the ZFS geom consumer
was closed, resulting in a panic from g_access calls on debug kernels
due to negative acr.
Instead use the same as the old iscsi_initiator SHUTDOWN_PRI_DEFAULT-1
which allows it to run before dashutdown etc but after filesystems.
cem [Sun, 6 Dec 2015 17:46:12 +0000 (17:46 +0000)]
vm_fault_hold: handle vm_page_rename failure
On vm_page_rename failure, fix a missing object unlock and a double free of
a page.
First remove the old page, then rename into other page into first_object,
then free the old page. This avoids the problem on rename failure. This is
a little ugly but seems to be the most straightforward solution.
Tested with:
$ sysctl debug.fail_point.uma_zalloc_arg="1%return"
$ kyua test -k /usr/tests/sys/Kyuafile
cem [Sun, 6 Dec 2015 17:39:13 +0000 (17:39 +0000)]
pmap_invalidate_range: For very large ranges, flush the whole TLB
Typical TLBs have 40-512 entries available. At some point, iterating
every single page in a requested invalidation range and issuing invlpg
on it is more expensive than flushing the TLB and allowing it to reload
on demand.
Broadwell CPUs have 1536 L2 TLB entries, so I've picked the arbitrary
number 4096 entries as a hueristic at which point we flush TLB rather
than invalidating every single potential page.
tuexen [Sun, 6 Dec 2015 16:17:57 +0000 (16:17 +0000)]
Fix the allocation of outgoing streams:
* When processing a cookie, use the number of
streams announced in the INIT-ACK.
* When sending an INIT-ACK for an existing
association, use the value from the association,
not from the end-point.
imp [Sat, 5 Dec 2015 17:40:11 +0000 (17:40 +0000)]
When building no-priv, chmod etc/defaults/rc.conf before appending to
it and then chmod back. There's no chmod -push / chmod -pop so hard
code 444 as the right permissions here.
Also, fix more stray detritus that crept in (out?) while re-arranging
the deck chairs.
arybchik [Sat, 5 Dec 2015 17:11:14 +0000 (17:11 +0000)]
sfxge: erase nvram partitions in chunks equal to their erase size
The erase size is reported by the nvram info command.
Submitted by: Paul Fox <pfox at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D4386
cem [Sat, 5 Dec 2015 17:01:38 +0000 (17:01 +0000)]
style.9: Add a small blurb about allowing bool
It was allowed before, but make it very explicit it is allowed now. And
prefer 'bool' to older types that were used for the same purpose -- int and
boolean_t.
Like with the C99 fixed-width types, use common sense when changing old
code.
melifaro [Sat, 5 Dec 2015 09:50:37 +0000 (09:50 +0000)]
Remove LLE read lock from IPv4 fast path.
LLE structure is mostly unchanged during its lifecycle.
To be more specific, there are 2 things relevant for fast path
lookup code:
1) link-level address change. Since r286722, these updates are performed
under AFDATA WLOCK.
2) Some sort of feedback indicating that this particular entry is used so
we re-send arp request to perform reachability verification instead of
expiring entry. The only signal that is needed from fast path is something
like binary yes/no.
The latter is solved by the following changes:
1) introduce special r_skip_req field which is read lockless by fast path,
but updated under (new) req_mutex mutex. If this field is non-zero, then
fast path will acquire lock and set it back to 0.
2) introduce simple state machine: incomplete->reachable<->verify->deleted.
Before that we implicitely had incomplete->reachable->deleted state machine,
with V_arpt_keep between "reachable" and "deleted". Verification was performed
in runtime 5 seconds before V_arpt_keep expire.
This is changed to "change state to verify 5 seconds before V_arpt_keep,
set r_skip_req to non-zero value and check it every second". If the value
is zero - then send arp verification probe.
These changes do not introduce any signifficant control plane overhead:
typically lle callout timer would fire 1 time more each V_arpt_keep (1200s)
for used lles and up to arp_maxtries (5) for dead lles.
As a result, all packets towards "reachable" lle are handled by fast path without
acquiring lle read lock.
Additional "req_mutex" is needed because callout / arpresolve_slow() or eventhandler
might keep LLE lock for signifficant amount of time, which might not be feasible
for fast path locking (e.g. having rmlock as ether AFDATA or lltable own lock).
kib [Sat, 5 Dec 2015 08:52:37 +0000 (08:52 +0000)]
It seems that at least some KVM versions advertise support for EIO
suppression but the version of the IOAPIC reported is 0x11 and neither
IOAPIC EOIR nor the Linux trick of temporal reprogramming of the pin
to edge-trigger mode to issue EOI work.
Disable eoi suppression if KVM is detected. The mode can still be
forced with the tunable.
Reported and tested by: Roman Mamontov <mr.xanto@gmail.com>
Sponsored by: The FreeBSD Foundation
kib [Sat, 5 Dec 2015 08:46:41 +0000 (08:46 +0000)]
In the pmap_set_pg() function, which enables the global bit on the
ptes mapping the kernel on CPUs where global TLB entries are
supported, revert to flushing only non-global entries, i.e. to the
pre-r291688 state. There is no need to flush global TLB entries,
since only global entries created during the previous iterations of
the loop could exist at this moment.
arybchik [Sat, 5 Dec 2015 07:04:11 +0000 (07:04 +0000)]
sfxge: support for MCDI logging implemented
Submitted by: Artem V. Andreev <Artem.Andreev at oktetlabs.ru>
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D4355
imp [Sat, 5 Dec 2015 04:43:56 +0000 (04:43 +0000)]
New config files for embedded boards.
Build with ../nanobsd.sh -c rpi.cfg, for example.
This can be done as a normal user.
This is a work in progress. It relies on the new nopriv
build stuff committed to nanobsd, but isn't complete yet.
Currently, one must copy files into the DOS partition
in the image. Also, ownership isn't preserved because
this doesn't use the new mtree-dedup.awk yet, but rather
some crazy mtree stuff. The image building bits will
move up into nanobsd when they are ready.
Also includes very preliminary support for building qemu
images for all platforms that we can for qemu. It is
missing aarch64, and we put the image on s2 instead of
s1 and mkimg can't mark s2 as active, so there's some
issues. Oh, and I didn't do it for arm.
imp [Sat, 5 Dec 2015 01:12:44 +0000 (01:12 +0000)]
Awk helper script that reads in a mtree METALOG file from installworld
(and soon augmented by nanobsd), performs the actions documented in
the script, and then spits out a new mtree file suitable for feeding
to makefs.
imp [Sat, 5 Dec 2015 01:10:04 +0000 (01:10 +0000)]
Setting NANO_NOPRIV_BUILD will now add -DNO_ROOT and METALOG=xxxx as
appropriate. First step in supporting a build w/o root. More to
follow as actions by customization scripts are not (yet) recorded in
the metalog, and duplicate entries in it aren't removed.
imp [Sat, 5 Dec 2015 00:54:43 +0000 (00:54 +0000)]
SRCCONF makes no sense in make.conf. Don't set it there. Rely on it
being in the environment. Also filter out the new SRC_ENV_CONF as
well. If you really need these set, set them in your config file,
not in the build environment used to launch nanobsd.
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