jhb [Wed, 27 Jun 2012 21:13:00 +0000 (21:13 +0000)]
MFC 233925,236357:
Add new ktrace records for the start and end of VM faults. This gives
a pair of records similar to syscall entry and return that a user can
use to determine how long page faults take. The new ktrace records are
enabled via the 'p' trace type, but are not enabled in the default set of
trace points.
mm [Wed, 27 Jun 2012 12:00:35 +0000 (12:00 +0000)]
MFC r236823 (pjd):
ds_guid of 0 is special, as it is used by snapshot receive code to
differentiate between an incremental and full stream.
Be sure not to generate guid equal to 0.
Reported by: someone who saw 0 being generated as 64bit random guid
mav [Wed, 27 Jun 2012 11:04:04 +0000 (11:04 +0000)]
MFC r237398:
In camisr() clear CAM_SIM_ON_DONEQ flag after camisr_runqueue() purged SIM
done queue. Clearing it before caused extra SIM queueing in some cases.
It was invisible during normal operation, but during USB device unplug and
respective SIM destruction it could keep pointer on SIM without having
counted reference and as result crash the system by use afer free.
delphij [Wed, 27 Jun 2012 00:34:06 +0000 (00:34 +0000)]
MFC r237339:
Polish previous revision: if the fts_* routines have lstat()'ed the
directory entry then use the struct stat from that instead of doing
it again, and skip the rm_overwrite() call if fts_read() indicated
that the entry couldn't be a regular file.
Obtained from: OpenBSD
MFC r237284 (kevlo):
Fix potential symlink race condition in "rm -P" by adding a check
that the file we have opened is the one we expected. Also open in
non-blocking mode to avoid a potential hang with FIFOs.
eadler [Tue, 26 Jun 2012 03:05:42 +0000 (03:05 +0000)]
MFC r237259 r237260 r237329:
Allow users with RO privilege to the device to read the RO attributes. [0]
Add __unused macros to appropriate places in order to allow building
with WARNS=6 on base gcc, gcc46, and clang
mav [Mon, 25 Jun 2012 07:11:03 +0000 (07:11 +0000)]
MFC r237460:
Return CAM_SEL_TIMEOUT and CAM_DEV_NOT_THERE instead of CAM_TID_INVALID
and CAM_LUN_INVALID for case of missing devices. In removes tons of error
messages from CAM during bus scans.
Reported and tested by: Mike Tancsa <mike@sentex.net>
davide [Sat, 23 Jun 2012 17:42:37 +0000 (17:42 +0000)]
MFC r237195:
The variable 'error' in sys_poll() is initialized in declaration to value
zero but in any case is overwritten by successive copyin(), making the
previous initialization useless. Remove this.
As an added bonus this fixes a style(9) bug.
mav [Sat, 23 Jun 2012 07:46:33 +0000 (07:46 +0000)]
MFC r237335:
Check status of cam_periph_hold() inside cdclose(). If cd device was
invalidated while open, cam_periph_hold() will return error and won't
get the reference. Following reference release will crash the system.
delphij [Sat, 23 Jun 2012 00:37:32 +0000 (00:37 +0000)]
MFC r237348:
Currently the code uses gzFile * for a zlib file descriptor, which
is not correct. The code works by accident because gzFile is
currently defined as void *, and internally it would be casted from
or to its real type.
A newer version of zlib will instead define it as a pointer to a
specific type pointer (namely, struct gzFile_s *). This therefore
would cause stricter checks and compiler would catch this type
mismatch.
This change does not cause any changes to the resulting binary,
as validated with md5(1).
marius [Thu, 21 Jun 2012 11:16:13 +0000 (11:16 +0000)]
MFC: r236496
- Loop up to 3 seconds when waiting for a device to get ready. [1]
- Make the device description match the driver name.
- Identify the chip variant based on the JEDEC and use that information
to use the proper values for page count, offset and size instead of
hardcoding a AT45DB642x with 2^N byte page support disabled.
- Take advantage of bioq_takefirst().
- Given that CONTINUOUS_ARRAY_READ_HF (0x0b) command isn't even mentioned
in Atmel's DataFlash Application Note, as suggested by the previous
comment may not work on all all devices and actually doesn't properly
on at least AT45DB321D (JEDEC 0x1f2701), rewrite at45d_task() to use
CONTINUOUS_ARRAY_READ (0xe8) for reading instead. This rewrite is laid
out in a way allowing to easily add support for BIO_DELETE later on.
- Add support for reads and writes not starting on a page boundary.
- Verify the flash content after writing.
- Let at45d_task() gracefully handle errors on SPI transfers and the
device not becoming ready afterwards again. [1]
- Use DEVMETHOD_END. [1]
- Use NULL instead of 0 for pointers. [1]
marius [Thu, 21 Jun 2012 11:10:55 +0000 (11:10 +0000)]
MFC: r237239
Revert the part of r236495 (MFC'ed to stable/8 in r237096) that
introduced checking of SPI_SR_TXEMPTY for TX transfer completion as
for reasons unknown this occasionally causes SPI_SR_RXBUFF and
SPI_SR_ENDRX to not rise.
In any case, once the RX part of the transfer is done it's obvious
that the preceding TX part had finished and checking of SPI_SR_TXEMPTY
was introduced to rule out a possible cause for the data corruption
mentioned in r236495 but which didn't turn out to be the problem
anyway.
marius [Thu, 21 Jun 2012 11:06:31 +0000 (11:06 +0000)]
MFC: r230242, r237102, r237236
- Add support for the FT2232 based egnite Turtelizer 2 JTAG/RS232 Adapter.
This includes adding support for skipping FTDI interfaces used for JTAG
leaving them for userland and just attaching to the RS232 half, similarly
to how the corresponding Linux drivers handles these kind of adapters.
While at it, sort uftdi_devs and return BUS_PROBE_SPECIFIC (because
uftdi_probe() alters the instance variables for better or worse as do
other probe routines of USB drivers) instead of 0.
- Remove duplicated entries for BeagleBone.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.
- Remove some stray lines.
mav [Thu, 21 Jun 2012 10:41:27 +0000 (10:41 +0000)]
MFC r236952:
- Limit r214102 workaround to only x86. On arm it causes more problems
then solves because of cache coherency issues. This fixes periodic error
messages on console and command timeouts.
- Patch SATA PHY configuration for 65nm SoCs to improve SNR same as
Linux does.
mav [Wed, 20 Jun 2012 14:39:35 +0000 (14:39 +0000)]
MFC r236712:
To make CAM debugging easier, compile in some debug flags (CAM_DEBUG_INFO,
CAM_DEBUG_CDB, CAM_DEBUG_PERIPH and CAM_DEBUG_PROBE) by default.
List of these flags can be modified with CAM_DEBUG_COMPILE kernel option.
CAMDEBUG kernel option still enables all possible debug, if not overriden.
Additional 50KB of kernel size is a good price for the ability to debug
problems without rebuilding the kernel. In case where size is important,
debugging can be compiled out by setting CAM_DEBUG_COMPILE option to 0.
dougb [Sun, 17 Jun 2012 21:07:00 +0000 (21:07 +0000)]
Improve the functionality of the PORTS_MODULES knob by adding
LOCALBASE/bin and sbin to PATH, which allows dependencies to be found;
adding SRC_BASE and OSVERSION to match the new kernel, and putting the
related builds under MAKEOBJDIRPREFIX so that they only need to be built
once per kernel.
In addition to the PR this includes ideas/contributions from crees
and matthew.
PR: ports/161452
Submitted by: Garrett Cooper <yanegomi@gmail.com>
marius [Sun, 17 Jun 2012 11:16:17 +0000 (11:16 +0000)]
MFC: r237107
- As a baind-aid, disable ATAPI DMA when using ATA_CAM for these controllers
as well as it causes the kernel to hang during boot.
Reported and tested by: Kevin Oberman
- Use NULL instead of 0 for a pointer.
marius [Sun, 17 Jun 2012 09:43:04 +0000 (09:43 +0000)]
MFC: r237101
Fix a braino in r236469 (MFC'ed to stable/8 in r236469); the number of
DMA tags required for handling MAXPHYS should be based on PAGE_SIZE rather
than SYM_CONF_DMA_BOUNDARY.
While at it, reuse the SYM_CONF_MAX_SG macro for specifying the maximum
number of DMA tags so sym(4) itself doesn't size memory beyond what's
required for handling MAXPHYS.
imp [Fri, 15 Jun 2012 17:01:12 +0000 (17:01 +0000)]
Add a band-aide for MFCs: at91_is_rm92 is always true in 8 until SAM9
support is MFC'd. The recent change to spi now references this, so
bring it in as a forward compatability.
mav [Fri, 15 Jun 2012 06:14:29 +0000 (06:14 +0000)]
MFC r236737:
Add IDs for Marvell 88SE9220/9230/9235 PCIe 2.0 x2 6Gbps SATA controllers.
Marvell 88SE9230 was confirmed to work, the rest two are just guessed.
marius [Thu, 14 Jun 2012 20:05:12 +0000 (20:05 +0000)]
MFC: r236495
- Prepend the device description with "AT91" to reflect its nature. [1]
- Move DMA tag and map creature to at91_spi_activate() where the other
resource allocation also lives. [1]
- Flesh out at91_spi_deactivate(). [1]
- Work around the "Software Reset must be Written Twice" erratum.
- For now, run the bus at the slowest speed possible in order to work
around data corruption on transit even seen with 9 MHz on ETHERNUT5
(15 MHz maximum) and AT45DB321D (20 MHz maximum). This also serves as
a poor man's work-around for the "NPCSx rises if no data data is to be
transmitted" erratum of RM9200. Being able to use the appropriate bus
speed would require:
1) Adding a proper work-around for the RM9200 bug consisting of taking
the chip select control away from the SPI peripheral and managing it
directly as a GPIO line.
2) Taking the maximum frequencies supported by the actual board and the
slave devices into account and basing the whole thing on the master
clock instead of hardcoding a divisor as previously done.
3) Fixing the above mentioned data corruption.
- KASSERT that TX/RX command and data sizes match on transfers.
- Introduce a mutex ensuring that only one child device is running a SPI
transfer at a time. [1]
- Add preliminary, #ifdef'ed out support for setting the chip select. [1]
- Use the RX instead of the TX commando size when setting up the RX side
of a transfer.
- For controllers having SPI_SR_TXEMPTY, i.e. !RM9200, also wait for the
completion of the TX part of transfers before stopping the whole thing
again.
- Use DEVMETHOD_END. [1]
- Use NULL instead of 0 for pointers. [1, partially]
marius [Thu, 14 Jun 2012 19:55:22 +0000 (19:55 +0000)]
MFC: r236579
The workaround added in r151650 for handling firmwares that don't allow
a single device to be opened multiple times concurrently unfortunately
isn't sufficient with ZFS. This is due to the fact, that ZFS may open
different partitions of a single device simultaneously. So the best we
can do in this case is to cache the lastly used device path and close
and open devices in ofwd_strategy() as needed.
pluknet [Thu, 14 Jun 2012 11:21:21 +0000 (11:21 +0000)]
MFC r234188,r234463,r234465:
- Update the swi_add prototype after struct ithd was split up into
struct intr_event and struct intr_thread. [1]
- Update the rest of struct ithd references.
- net_ih and softclock_ih cookies have gone away.
- Document swi_remove(9).
mav [Wed, 13 Jun 2012 20:34:14 +0000 (20:34 +0000)]
MFC r230188i (by das):
Correct some bugs that resulted from arm/_fpmath.h being blindly copied
from the x86 version, which has a completely different long double
format.
jhb [Wed, 13 Jun 2012 15:25:52 +0000 (15:25 +0000)]
MFC 230260-230262,230269,230270,230426,230429,230538,230765,230766,230864,
232520 (partial),235563:
Add support for the extended FPU states on amd64, both for native
64bit and 32bit ABIs. As a side-effect, it enables AVX on capable
CPUs.
In particular:
- Query the CPU support for XSAVE, list of the supported extensions
and the required size of FPU save area. The hw.use_xsave tunable is
provided for disabling XSAVE, and hw.xsave_mask may be used to
select the enabled extensions.
- Remove the FPU save area from PCB and dynamically allocate the
(run-time sized) user save area on the top of the kernel stack,
right above the PCB. Reorganize the thread0 PCB initialization to
postpone it after BSP is queried for save area size.
- The dumppcb, stoppcbs and susppcbs now do not carry the FPU state as
well. FPU state is only useful for suspend, where it is saved in
dynamically allocated suspfpusave area.
- Use XSAVE and XRSTOR to save/restore FPU state, if supported and
enabled.
- Define new mcontext_t flag _MC_HASFPXSTATE, indicating that
mcontext_t has a valid pointer to out-of-struct extended FPU
state. Signal handlers are supplied with stack-allocated fpu
state. The sigreturn(2) and setcontext(2) syscall honour the flag,
allowing the signal handlers to inspect and manipilate extended
state in the interrupted context.
- The getcontext(2) never returns extended state, since there is no
place in the fixed-sized mcontext_t to place variable-sized save
area. And, since mcontext_t is embedded into ucontext_t, makes it
impossible to fix in a reasonable way. Provide a sysarch(2)
facility to query extended FPU state.
- Add API for obtaining extended machine context states that cannot be
fit into existing mcontext_t.
On i386 and amd64 return the extended FPU states using
getcontextx(3). For other architectures, getcontextx(3) returns the
same information as getcontext(2).
- Add ptrace(2) support for getting and setting extended state; while
there, implement missed PT_I386_{GET,SET}XMMREGS for 32bit binaries.
- Change fpu_kern KPI to not expose struct fpu_kern_ctx layout to
consumers, making it opaque. Internally, struct fpu_kern_ctx now
contains a space for the extended state. Convert in-kernel consumers
of fpu_kern KPI both on i386 and amd64.
mav [Tue, 12 Jun 2012 08:10:14 +0000 (08:10 +0000)]
MFC r236847:
Partially revert r236666:
Return PROTO_ATA protocol in response to XPT_PATH_INQ.
smartmontools uses it to identify ATA devices and I don't know any other
place now where it is important. It could probably use XPT_GDEV_TYPE
instead for more accurate protocol information, but let it live for now.
issyl0 [Mon, 11 Jun 2012 19:09:55 +0000 (19:09 +0000)]
Partial merge of r213507 from head:
In r178993, the ability to view a man page by giving a path to the
man page itself was added, but never documented. Subsequently, the
GNU-licensed man(1) and its man page were replaced by BSD licensed
implementations, and later on this undocumented functionality was
also added to the new BSD-licensed man(1), together with
documentation.
This is a merge of the documentation part of that commit (r213507)
into the GNU-licensed man(1) man page in stable/8, in order to
document the available functionality.
rmacklem [Mon, 11 Jun 2012 13:17:45 +0000 (13:17 +0000)]
MFC: r235381
Fix two cases in the new NFS server where a tsleep() is
used, when the code should actually protect the tested
variable with a mutex. Since the tsleep()s had a 10sec
timeout, the race would have only delayed the allocation
of a new clientid for a client. The sleeps will also
rarely occur, since having a callback in progress when
a client acquires a new clientid, is unlikely.
in practice, since having a callback in progress when
a fresh clientid is being acquired by a client is unlikely.
delphij [Mon, 11 Jun 2012 07:11:34 +0000 (07:11 +0000)]
MFC r236572:
Replace the use of wall clock time with monotonically increasing
clock. In general, gettimeofday() is not appropriate interface
when accounting for elasped time because it can go backward, in
which case the policy code could errornously consider the limit
as exceeded.
Reported by: Mahesh Arumugam
Submitted by: Dorr H. Clark via gnn
Sponsored by: Citrix / NetScaler
mm [Sun, 10 Jun 2012 07:40:43 +0000 (07:40 +0000)]
MFC r236155:
Import illumos changeset 13570:3411fd5f1589
1948 zpool list should show more detailed pool information
Display per-vdev information with "zpool list -v".
The added expandsize property has currently no value on FreeBSD.
This changeset allows adding expansion support to individual vdevs
in the future.
mav [Sat, 9 Jun 2012 09:11:07 +0000 (09:11 +0000)]
MFC r233746:
Be more conservative in using READ CAPACITY(16) command. Previous code
checked PROTECT bit in INQUIRY data for all SPC devices, while it is defined
only since SPC-3. But there are some SPC-2 USB devices were reported, that
have PROTECT bit set, return no error for READ CAPACITY(16) command, but
return wrong sector count value in response.
kib [Sat, 9 Jun 2012 09:01:24 +0000 (09:01 +0000)]
MFC r236043:
Add a vn_bmap_seekhole(9) vnode helper which can be used by any
filesystem which supports VOP_BMAP(9) to implement SEEK_HOLE/SEEK_DATA
commands for lseek(2).
mav [Sat, 9 Jun 2012 08:51:25 +0000 (08:51 +0000)]
MFC r224806i (by mjacob):
Fixes for sure bus reference miscounting and potential device and
target reference miscounts. It also adds a helper function to get
the current reference counts for components of cam_path for debug
aid. One minor style(9) change.
projects / FreeBSD / stable / 8.git / log