kib [Sat, 9 Jun 2012 08:04:08 +0000 (08:04 +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 07:53:57 +0000 (07:53 +0000)]
r236666:
ATA/SATA controllers have no idea about protocol of the connected device
until transport will do some probe actions (at least soft reset).
Make ATA/SATA SIMs to not report bogus and confusing PROTO_ATA protocol.
Make ATA/SATA transport to fill that gap by reporting protocol to SIM with
XPT_SET_TRAN_SETTINGS and patching XPT_GET_TRAN_SETTINGS results if needed.
mav [Sat, 9 Jun 2012 07:43:11 +0000 (07:43 +0000)]
MFC r236437:
Rewrite enabling NCQ for SATA devices in a way more alike to SCSI TCQ.
This allows to control it with `camcontrol negotiate adaX -T (en|dis)able`
on the fly, same as for SCSI devices.
mav [Sat, 9 Jun 2012 07:31:04 +0000 (07:31 +0000)]
NFC r236393:
Use AC_GETDEV_CHANGED async to notify ada driver about DMA and NCQ status
change. Now that allows switching between PIO and DMA modes on the fly.
mav [Sat, 9 Jun 2012 07:28:11 +0000 (07:28 +0000)]
MFC r236234:
Allow to change number of openings (used tags) for ATA/SATA devices
via `camcontrol tags ... -N ...`. There is no need to tune it in
usual cases, but some users want to have it for debugging purposes.
mav [Sat, 9 Jun 2012 06:43:26 +0000 (06:43 +0000)]
MFC r235897:
- Add low-level support for SATA Enclosure Management Bridge (SEMB)
devices -- SATA equivalents of the SCSI SES/SAF-TE devices.
- Add some utility functions for SCSI SAF-TE devices access.
mav [Fri, 8 Jun 2012 20:30:37 +0000 (20:30 +0000)]
MFC r235982:
Add tunable/sysctl kern.cam.pmp.hide_special, controlling whether special
PMP ports such as PMP configuration or SEMB should be exposed or hidden.
These ports were always hidden before as useless and sometimes promatic.
But with updated ses driver supporting SEMB it is no longer so straight.
Keep ports hidden by default to avoid probe request ttimeouts if SEP is
not connected to PMP's SEMB via I2C, that is very often situation.
jhb [Wed, 6 Jun 2012 21:49:31 +0000 (21:49 +0000)]
MFC 233760:
Export some more useful info about shared memory objects to userland
via procstat(1) and fstat(1):
- Change shm file descriptors to track the pathname they are associated
with and add a shm_path() method to copy the path out to a caller-supplied
buffer.
- Use the fo_stat() method of shared memory objects and shm_path() to
export the path, mode, and size of a shared memory object via
struct kinfo_file.
- Add a struct shmstat to the libprocstat(3) interface along with a
procstat_get_shm_info() to export the mode and size of a shared memory
object.
- Change procstat to always print out the path for a given object if it
is valid.
- Teach fstat about shared memory objects and to display their path,
mode, and size.
jhb [Wed, 6 Jun 2012 16:00:31 +0000 (16:00 +0000)]
MFC 228509,228620,228533:
Add a helper API to allow in-kernel code to map portions of shared memory
objects created by shm_open(2) into the kernel's address space. This
provides a convenient way for creating shared memory buffers between
userland and the kernel without requiring custom character devices.
mav [Wed, 6 Jun 2012 12:16:54 +0000 (12:16 +0000)]
MFC r230053:
Add BIO_DELETE support for SCSI Direct Access devices (da).
Depending on device capabilities use different methods to implement it.
Currently used method can be read/set via kern.cam.da.X.delete_method
sysctls. Possible values are:
NONE - no provisioning support reported by the device;
DISABLE - provisioning support was disabled because of errors;
ZERO - use WRITE SAME (10) command to write zeroes;
WS10 - use WRITE SAME (10) command with UNMAP bit set;
WS16 - use WRITE SAME (16) command with UNMAP bit set;
UNMAP - use UNMAP command (equivalent of the ATA DSM TRIM command).
The last two methods (UNMAP and WS16) are defined by SBC specification and
the UNMAP method is the most advanced one. The rest of methods I've found
supported in Linux, and as soon as they were trivial to implement, then
why not? Hope they will be useful in some cases.
Unluckily I have no devices properly reporting parameters of the logical
block provisioning support via respective VPD pages (0xB0 and 0xB2). So
all info I have/use now is the flag telling whether logical block
provisioning is supported or not. As result, specific methods chosen now
by trying different ones in order (UNMAP, WS16, DISABLE) and checking
completion status to fallback if needed. I don't expect problems from this,
as if something go wrong, it should just disable itself. It may disable
even too aggressively if only some command parameter misfit.
Unlike Linux, which executes each delete with separate request, I've
implemented here the same request aggregation as implemented in ada driver.
Tests on SSDs I have show much better results doing it this way: above
8GB/s of the linear delete on Intel SATA SSD on LSI SAS HBA (mps).
trasz [Tue, 5 Jun 2012 20:27:41 +0000 (20:27 +0000)]
MFC r235781:
Fix enforcement of file size limit with O_APPEND on ZFS.
vn_rlimit_fsize takes uio->uio_offset and uio->uio_resid into account
when determining whether given write would exceed RLIMIT_FSIZE.
When APPEND flag is specified, ZFS updates uio->uio_offset to point to the
end of file.
But this happens after a call to vn_rlimit_fsize, so vn_rlimit_fsize check
can be rendered ineffective by thread that opens some file with O_APPEND
and lseeks below RLIMIT_FSIZE before calling write.
Interface addresses are refcounted as packets move through the stack,
and there's garbage collection tied to it so that address changes can
safely propagate while traffic is flowing. In our setup, we weren't
changing or deleting any addresses, but the refcounting logic in
ip6_input() was wrong and caused a reference leak on every inbound
V6 packet. This eventually caused a 32bit overflow, and the resulting
0 value caused the garbage collection to run on the active address.
That then snowballed into the panic.
dim [Tue, 5 Jun 2012 06:43:45 +0000 (06:43 +0000)]
MFC r236444:
Install libcxxrt's C++ ABI and unwind headers. This is done in libc++'s
Makefile, so these headers go into the same destination directory as
libc++'s own headers, currently /usr/include/c++/v1.
dougb [Mon, 4 Jun 2012 22:14:33 +0000 (22:14 +0000)]
Upgrade to 9.8.3-P1, the latest from ISC. This version contains
a critical bugfix:
Processing of DNS resource records where the rdata field is zero length
may cause various issues for the servers handling them.
Processing of these records may lead to unexpected outcomes. Recursive
servers may crash or disclose some portion of memory to the client.
Secondary servers may crash on restart after transferring a zone
containing these records. Master servers may corrupt zone data if the
zone option "auto-dnssec" is set to "maintain". Other unexpected
problems that are not listed here may also be encountered.
All BIND users are strongly encouraged to upgrade.
mav [Mon, 4 Jun 2012 07:12:36 +0000 (07:12 +0000)]
MFC r232740:
Make kern.sched.idlespinthresh default value adaptive depending of HZ.
Otherwise with HZ above 8000 CPU may never skip timer ticks on idle.
mav [Mon, 4 Jun 2012 07:03:56 +0000 (07:03 +0000)]
MFC r235333:
Add two functions xpt_batch_start() and xpt_batch_done() to the CAM SIM KPI
to allow drivers to handle request completion directly without passing
them to the CAM SWI thread removing extra context switch.
Modify all ATA/SATA drivers to use them.
bapt [Sun, 3 Jun 2012 18:16:17 +0000 (18:16 +0000)]
MFC: 234851, 235059
Add two special directives to libmap.conf:
include <file>:
Parse the contents of file before continuing with the current file.
includedir <dir>:
Parse the contents of every file in dir that ends in .conf before continuing
with the current file.
Any file or directory encountered while processing include or includedir
directives will be parsed exactly once, even if it is encountered multiple
times.
rea [Sun, 3 Jun 2012 18:00:38 +0000 (18:00 +0000)]
OpenSSH: allow VersionAddendum to be used again
Prior to this, setting VersionAddendum will be a no-op: one will
always have BASE_VERSION + " " + VERSION_HPN for VersionAddendum
set in the config and a bare BASE_VERSION + VERSION_HPN when there
is no VersionAddendum is set.
HPN patch requires both parties to have the "hpn" inside their
advertized versions, so we add VERSION_HPN to the VERSION_BASE
if HPN is enabled and omitting it if HPN is disabled.
VersionAddendum now uses the following logics:
* unset (default value): append " " and VERSION_ADDENDUM;
* VersionAddendum is set and isn't empty: append " "
and VersionAddendum;
* VersionAddendum is set and empty: don't append anything.
jilles [Sat, 2 Jun 2012 20:18:34 +0000 (20:18 +0000)]
MFC r236193: libfetch: Avoid SIGPIPE on network connections.
To avoid unexpected process termination from SIGPIPE when writing to a
closed network connection, enable SO_NOSIGPIPE on all network connections.
The POSIX standard MSG_NOSIGNAL is not used since it requires modifying all
send calls to add this flag. This is particularly nasty for SSL connections.
marius [Sat, 2 Jun 2012 19:16:09 +0000 (19:16 +0000)]
MFC: r236328
Try to finally get the point in time at which bge_add_sysctls() is called
right; it needs to be called before bge_can_use_msi() but in turn requires
bge_flags to be properly set.
marius [Sat, 2 Jun 2012 19:11:44 +0000 (19:11 +0000)]
MFC: r236156
- Fix some typos in mmc_acquire_bus() and mmc_send_csd().
- Fix some math errors in mmc_decode_csd_sd().
- Fix incorrect arguments to mmc_send_app_op_cond() in mmc_go_discovery().
- Add reporting of CSD for debug purposes.
- Add detection (and skipping) of password-locked cards.
- Add setting of block length on card if necessary.
marius [Sat, 2 Jun 2012 18:57:13 +0000 (18:57 +0000)]
MFC: r236061
- When creating the DMA tag for user data, don't ask for more segments
than required for handling MAXPHYS and report the resulting maximum
I/O size to CAM instead of implicitly limiting it to DFLTPHYS.
- Move the variables of sym_action2() out of nested scope as required
by style(9) and remove extraneous curly braces.
- Replace a magic value for PCIR_COMMAND with the appropriate macro.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.
bapt [Sat, 2 Jun 2012 15:13:28 +0000 (15:13 +0000)]
MFC: 228545,229572
Modify pw_copy:
- if pw is NULL and oldpw is not NULL then the oldpw is deleted
- if pw->pw_name != oldpw->pw_name but pw->pw_uid == oldpw->pw_uid
then it renames the user
add new gr_* functions so now gr_util API is similar to pw_util API,
this allow to manipulate groups in a safe way.
Add new pw_make_v7 to make a passwd line (in v7 format) out of a struct passwd
kib [Fri, 1 Jun 2012 14:40:16 +0000 (14:40 +0000)]
MFC r235266:
According to SUSv4, realpath(3) must fail if
[ENOENT] A component of file_name does not name an existing file or
file_name points to an empty string.
[ENOTDIR] A component of the path prefix is not a directory, or the
file_name argument contains at least one non- <slash> character
and ends with one or more trailing <slash> characters and the last
pathname component names an existing file that is neither a
directory nor a symbolic link to a directory.
Add checks for the listed conditions, and set errno accordingly.
Update the realpath(3) manpage to mention SUS behaviour. Remove the
requirement to include sys/param.h before stdlib.h.
rstone [Wed, 30 May 2012 23:22:52 +0000 (23:22 +0000)]
MFC r235459 and r235471
r235459:
Implement the DTrace sched provider. This implementation aims to be
compatible with the sched provider implemented by Solaris and its open-
source derivatives. Full documentation of the sched provider can be found
on Oracle's DTrace wiki pages.
Note that for compatibility with scripts originally written for Solaris,
serveral probes are defined that will never fire. These probes are defined
to fire when Solaris-specific features perform certain actions. As these
features are not present in FreeBSD, the probes can never fire.
Also, I have added a two probes that are not defined in Solaris, lend-pri
and load-change. These probes have been added to make it possible to
collect schedgraph data with DTrace.
Finally, a few probes are defined in Solaris to take a cpuinfo_t *
argument. As it was not immediately clear to me how to translate that to
FreeBSD, currently those probes are passed NULL in place of a cpuinfo_t *.
Sponsored by: Sandvine Incorporated
r235471:
Fix typo in function name SDT_PROBE4 and unbreak 4BSD UP.
This brings stdatomic.h into -STABLE and includes improvements to tgmath.h that
significantly decrease compile times on a C11 compiler (such as the clang in
the base system).
jhb [Wed, 30 May 2012 16:30:51 +0000 (16:30 +0000)]
MFC 235833:
Only check to see if a memory resource is a PCI ROM BAR when activating
and deactivating PCI resources. Previously, if a device had more than
48 MSI interrupts, then activating message 48 (which has a rid == PCIR_BIOS)
would incorrectly try to enable the PCI ROM BAR.
jhb [Wed, 30 May 2012 16:13:10 +0000 (16:13 +0000)]
MFC 234501:
The amr(4) firmware contains a rather dubious "feature" where it
assumes for small buffers (< 64k) that the OS driver is actually using
a buffer rounded up to the next power of 2. It also assumes that the
buffer is at least 4k in size. Furthermore, there is at least one
known instance of megarc sending a request with a 12k buffer where the
firmware writes out a 24k-ish reply.
To workaround the data corruption triggered by this "feature", ensure
that buffers for user commands use a minimum size of 32k, and that
buffers between 32k and 64k use a 64k buffer.
projects / FreeBSD / stable / 9.git / log