thompsa [Wed, 29 Feb 2012 00:52:56 +0000 (00:52 +0000)]
MFC r232008,232010,232080,232089
Using the flowid in the mbuf assumes the network card is giving a good hash for
the traffic flow, this may not be the case giving poor traffic distribution.
Add a sysctl which allows us to fall back to our own flow hash code.
delphij [Tue, 28 Feb 2012 23:30:19 +0000 (23:30 +0000)]
MFC r228924:
In POSIX.1-2008:
P_tmpdir [OB XSI] Default directory prefix for tempnam().
This macro is used in a lot of places in legacy applications,
and is why we see a lot of programs written for e.g. Linux
store volatile temporary files in /var/tmp and not /tmp.
rmacklem [Tue, 28 Feb 2012 15:52:01 +0000 (15:52 +0000)]
MFC: r232050
hrs@ reported a panic to freebsd-stable@ under the subject line
"panic in 8.3-PRERELEASE" on Feb. 22, 2012. This panic was caused
by use of a mix of tsleep() and msleep() calls on the same event
in the new NFS server DRC code. It did "mtx_unlock(); tsleep();"
in two places, which kib@ noted introduced a slight risk that the
wakeup() would occur before the tsleep(), resulting in a 10sec
delay before waking up. This patch fixes the problem by replacing
"mtx_unlock(); tsleep();" with mtx_sleep(..PDROP..). It also
changes a nfsmsleep() call to mtx_sleep() so that the code uses
mtx_sleep() consistently within the file.
jkim [Mon, 27 Feb 2012 18:28:18 +0000 (18:28 +0000)]
MFC: r231843, r232061, r232063, r232065, r232069
- Set the initial mode for the adapter after executing VESA BIOS POST.
- Probe supported states for save/restore function.
- Defer to VGA methods if no state is supported.
sbruno [Mon, 27 Feb 2012 17:29:42 +0000 (17:29 +0000)]
MFC r231860
During work to port isci(4) to stable/7 I noted that the maxio portion of
struct ccb_pathinq from sys/cam/cam_ccb.h wasn't added to stable/7 at all
and didn't appear in stable/8 until svn R195534. Since __FreeBSD_version
did not get bumped until svn R195634, assume that maxio is valid at 800102
or higher.
brueffer [Sat, 25 Feb 2012 10:10:43 +0000 (10:10 +0000)]
MFC: r231871
Switch the license boilerplates to our standard one.
Advantages:
- Reduces the number of different license versions in the tree
- Eliminates a typo
- Removes some incorrect author attributions due to c/p
- Removes c/p error potential for future pmc manpages
marius [Sat, 25 Feb 2012 00:35:19 +0000 (00:35 +0000)]
MFC: r231913
- Probe BCM57780.
- In case the parent is bge(4), don't set the Jumbo frame settings unless
the MAC actually is Jumbo capable as otherwise the PHY might not have the
corresponding registers implemented. This is also in line with what the
Linux tg3 driver does.
PR: 165032
Submitted by: Alexander Milanov
Obtained from: OpenBSD
marius [Fri, 24 Feb 2012 00:47:14 +0000 (00:47 +0000)]
MFC: r231621
- As it turns out, MSI-X is broken for at least LSI SAS1068E when passed
through by VMware so blacklist their PCI-PCI bridge for MSI/MSI-X here.
Note that besides currently there not being a quirk type that disables
MSI-X only and there's no evidence that MSI doesn't work with the VMware
pass-through, it's really questionable whether MSI generally works in
that setup as VMware only mention three know working devices [1, p. 4].
Also not that this quirk entry currently doesn't affect the devices
emulated by VMware in any way as these don't claim support MSI/MSI-X to
begin with. [2]
While at it, make the PCI quirk table const and static.
- Remove some duplicated empty lines.
- Use DEVMETHOD_END.
jkim [Thu, 23 Feb 2012 22:34:44 +0000 (22:34 +0000)]
MFC: r231781
Some BIOSes are known for corrupting low 64KB between suspend and resume.
Mask off the first 16 pages unless we appear to be running in a VM. This
address may be overridden by 'hw.physmem.start' tunable from loader.
jkim [Thu, 23 Feb 2012 22:26:14 +0000 (22:26 +0000)]
MFC: r231161
- Give all clocks and timers on acpi0 the equal probing order.
- Increase probing order for ECDT table to match HID-based probing.
- Decrease probing order for HPET table to match HID-based probing.
- Decrease probing order for CPUs and system resources.
- Fix ACPI_DEV_BASE_ORDER to reflect the reality.
jkim [Thu, 23 Feb 2012 22:20:52 +0000 (22:20 +0000)]
MFC: r231797
Clean up RFLAG and CR3 register handling and nearby comments. For BSP, use
spinlock_enter()/spinlock_exit() to save/restore RFLAGS. We know interrupt
is disabled when returning from S3. For AP, we do not have to save/restore
it because IRET will do it for us any way. Do not save CR3 locally because
savectx() does it and BSP does not have to switch to kernel map for amd64.
Change contigmalloc(9) flag while I am in the neighborhood.
jkim [Thu, 23 Feb 2012 22:03:20 +0000 (22:03 +0000)]
MFC: r231791, r231840
Set up an event handler to turn off speaker if user requested it. Speaker
will stop beeping after all device drivers are resumed. Use proper API to
"acquire" and "release" PIC timer2 for consistency and correctness.
kmacy [Thu, 23 Feb 2012 19:20:36 +0000 (19:20 +0000)]
MFC r230623
exclude kmem_alloc'ed ARC data buffers from kernel minidumps on amd64
excluding other allocations including UMA now entails the addition of
a single flag to kmem_alloc or uma zone create
kmacy [Thu, 23 Feb 2012 18:50:19 +0000 (18:50 +0000)]
MFC r230598
A flowtable entry can continue referencing an llentry indefinitely if the entry is repeatedly
referenced within its timeout window. This change clears the LLE_VALID flag when an llentry
is removed from an interface's hash table and adds an extra check to the flowtable code
for the LLE_VALID flag in llentry to avoid retaining and using a stale reference.
kib [Tue, 21 Feb 2012 21:21:31 +0000 (21:21 +0000)]
MFC r230430:
Use getcontextx(3) internal API instead of getcontext(2) to provide
the signal handlers with the context information in the deferrred
case.
kib [Tue, 21 Feb 2012 21:18:59 +0000 (21:18 +0000)]
MFC r230429:
Add API for obtaining extended machine context states that cannot be
fit into existing mcontext_t.
On i386 and amd64 do return the extended FPU states using
getcontextx(3). For other architectures, getcontextx(3) returns the
same information as getcontext(2).
MFC r230864:
Make the sys/ucontext.h self-contained by changing the return type
of __getcontextx_size(3) from size_t to int.
kib [Tue, 21 Feb 2012 01:43:31 +0000 (01:43 +0000)]
MFC r231313 (by mckusick):
First attempt the uiomove() to the newly allocated (and dirty) buffer
and only zeros it if the uiomove() fails. The effect is to eliminate the
gratuitous zeroing of the buffer in the usual case where the uiomove()
successfully fills it.
kib [Tue, 21 Feb 2012 01:37:27 +0000 (01:37 +0000)]
MFC r231160 (by mckusick):
Do not fsync all resident UFS vnodes from the syncer vnode call
to ffs_sync(). Since all inode metadata updates are translated to
inodeblock updates, the vnodes syncing is handled by syncer dirty buffer
wheel. The only things that shall be synced by ffs_sync() from the
syncer calls are the filesystem metadata proper.
kib [Tue, 21 Feb 2012 01:27:23 +0000 (01:27 +0000)]
MFC r231122:
Sprinkle missed calls to asynchronous UFS_UPDATE() in attempt to
guarantee that all UFS inode metadata changes results in the dirtiness
of the inodeblock.
mm [Mon, 20 Feb 2012 21:10:14 +0000 (21:10 +0000)]
MFC r230397, r230438:
MFC r230397 (pjd):
By default turn off prefetch when listing snapshots.
In my tests it makes listing snapshots 19% faster with cold cache and
47% faster with warm cache.
MFC r230438 (pjd):
Dramatically optimize listing snapshots when user requests only snapshot
names and wants to sort them by name, ie. when executes:
# zfs list -t snapshot -o name -s name
Because only name is needed we don't have to read all snapshot properties.
Below you can find how long does it take to list 34509 snapshots from a single
disk pool before and after this change with cold and warm cache:
before:
# time zfs list -t snapshot -o name -s name > /dev/null
cold cache: 525s
warm cache: 218s
after:
# time zfs list -t snapshot -o name -s name > /dev/null
cold cache: 1.7s
warm cache: 1.1s
kib [Mon, 20 Feb 2012 11:27:37 +0000 (11:27 +0000)]
MFC r231075:
Instead of removing MNTK_ASYNC from mnt_kern_flag, provide a local
thread flag to disable async i/o for current thread only. Use the
opportunity to move DOINGASYNC() macro into sys/vnode.h and
consistently use it through places which tested for MNTK_ASYNC.
MFC r231204:
Unbreak detection of the async mode for clustered writes after r231075.
dougb [Mon, 20 Feb 2012 10:13:09 +0000 (10:13 +0000)]
MFC r231862:
Increase the default shutdown timer to 90 seconds. This will allow
certain systems that take a long time to shut down, without adversely
affecting things that shut down quickly. It's also 30 seconds less than
the default hard limit of 120 seconds in kern.init_shutdown_timeout.
These tools are mainly useful for people that want to manipulate llvm
bitcode (.bc) and llvm assembly language (.ll) files, or want to tinker
with llvm and clang themselves.
andreast [Sun, 19 Feb 2012 08:58:31 +0000 (08:58 +0000)]
MFC r230391, r230400, 231019:
This commit adds profiling support for powerpc64. Now we can do application
profiling and kernel profiling. To enable kernel profiling one has to build
kgmon(8). I will enable the build once I managed to build and test powerpc
(32-bit) kernels with profiling support.
- add a powerpc64 PROF_PROLOGUE for _mcount.
- add macros to avoid adding the PROF_PROLOGUE in certain assembly entries.
- apply these macros where needed.
- add size information to the MCOUNT function.
tuexen [Fri, 17 Feb 2012 10:54:09 +0000 (10:54 +0000)]
MFC 231672:
Fix a bug where the wrong protocol overhead was used. This can lead
to a deadlock of an association when an IPv6 socket was used to
communcate with IPv4 and an ICMPv4 fragmentation needed message
was received.
While there, simplify the code a bit.
r231743
=======
Enhance documentation, improve interoperability, and fix defects in
FreeBSD's front and back Xen blkif interface drivers.
sys/dev/xen/blkfront/block.h:
sys/dev/xen/blkfront/blkfront.c:
sys/dev/xen/blkback/blkback.c:
Replace FreeBSD specific multi-page ring impelementation with
support for both the Citrix and Amazon/RedHat versions of this
extension.
sys/dev/xen/blkfront/blkfront.c:
o Add a per-instance sysctl tree that exposes all negotiated
transport parameters (ring pages, max number of requests,
max request size, max number of segments).
o In blkfront_vdevice_to_unit() add a missing return statement
so that we properly identify the unit number for high numbered
xvd devices.
sys/dev/xen/blkback/blkback.c:
o Add static dtrace probes for several events in this driver.
o Defer connection shutdown processing until the front-end
enters the closed state. This avoids prematurely tearing
down the connection when buggy front-ends transition to the
closing state, even though the device is open and they
veto the close request from the tool stack.
o Add nodes for maximum request size and the number of active
ring pages to the exising, per-instance, sysctl tree.
o Miscelaneous style cleanup.
sys/xen/interface/io/blkif.h:
o Add extensive documentation of the XenStore nodes used to
implement the blkif interface.
o Document the startup sequence between a front and back driver.
o Add structures and documenatation for the "discard" feature
(AKA Trim).
o Cleanup some definitions related to FreeBSD's request
number/size/segment-limit extension.
sys/dev/xen/blkfront/blkfront.c:
sys/dev/xen/blkback/blkback.c:
sys/xen/xenbus/xenbusvar.h:
Add the convenience function xenbus_get_otherend_state() and
use it to simplify some logic in both block-front and block-back.
r231837
=======
sys/dev/xen/blkback/blkback.c:
Fix typo in a printf string: "specificed" -> "specified".
r231839
=======
Fix a bug in the calculation of the maximum I/O request size.
The previous code did not limit the I/O request size based on
the maximum number of segments supported by the back-end. In
current practice, since the only back-end supporting chained
requests is the FreeBSD implementation, this limit was never
exceeded.
sys/dev/xen/blkfront/block.h:
Add two macros, XBF_SEGS_TO_SIZE() and XBF_SIZE_TO_SEGS(),
to centralize the logic of reserving a segment to deal with
non-page-aligned I/Os.
sys/dev/xen/blkfront/blkfront.c:
o When negotiating transfer parameters, limit the
max_request_size we use and publish, if it is greater
than the maximum, unaligned, I/O we can support with
the number of segments advertised by the backend.
o Don't unilaterally reduce the I/O size published to
the disk layer by a single page. max_request_size
is already properly limited in the transfer parameter
negotiation code.
o Fix typos in printf strings:
"max_requests_segments" -> "max_request_segments"
"specificed" -> "specified"
emaste [Thu, 16 Feb 2012 00:46:11 +0000 (00:46 +0000)]
MFC r231573:
Fix panic after "WARNING - ATA_IDENTIFY taskqueue timeout"
When performing a firmware upgrade via atacontrol[1] the subsequent
command may time out producing the error message above. When this
happens the callout could still be active, and the system would then
panic due to a destroyed semaphore.
Instead, ensure that the callout is done first, via callout_drain.
jilles [Wed, 15 Feb 2012 21:03:26 +0000 (21:03 +0000)]
MFC r230512: sockstat: Also show sockets not associated with a descriptor.
Sockets not associated with a file descriptor include TCP TIME_WAIT states
and sockets created via the socket(9) API such as from rpc.lockd and the NFS
client.
alc [Wed, 15 Feb 2012 18:15:26 +0000 (18:15 +0000)]
MFC r229363
Don't pass VM_ALLOC_ZERO to vm_page_grab() in tmpfs_mappedwrite() and
tmpfs_nocacheread(). It is both unnecessary and a pessimization. It
results in either the page being zeroed twice or zeroed first and then
overwritten by an I/O operation.
ken [Wed, 15 Feb 2012 17:28:09 +0000 (17:28 +0000)]
MFC r229997, r230033, and r230334
Bring the CAM Target Layer into stable/9.
r230334 | ken | 2012-01-19 11:42:03 -0700 (Thu, 19 Jan 2012) | 19 lines
Quiet some clang warnings when compiling CTL.
ctl_error.c,
ctl_error.h: Take out the ctl_sense_format enumeration, and use
scsi_sense_data_type instead.
Remove ctl_get_sense_format() and switch ctl_build_ua()
over to using scsi_sense_data_type.
ctl_backend_ramdisk.c,
ctl_backend_block.c:
Use C99 structure initializers instead of GNU initializers.
ctl.c: Switch over to using the SCSI sense format enumeration
instead of the CTL-specific enumeration.
Submitted by: dim (partially)
MFC after: 1 month
r230033 | ken | 2012-01-12 15:08:33 -0700 (Thu, 12 Jan 2012) | 5 lines
Silence some unnecessary verbosity.
Reported by: mav
MFC after: 1 month
r229997 | ken | 2012-01-11 17:34:33 -0700 (Wed, 11 Jan 2012) | 170 lines
Add the CAM Target Layer (CTL).
CTL is a disk and processor device emulation subsystem originally written
for Copan Systems under Linux starting in 2003. It has been shipping in
Copan (now SGI) products since 2005.
It was ported to FreeBSD in 2008, and thanks to an agreement between SGI
(who acquired Copan's assets in 2010) and Spectra Logic in 2010, CTL is
available under a BSD-style license. The intent behind the agreement was
that Spectra would work to get CTL into the FreeBSD tree.
Some CTL features:
- Disk and processor device emulation.
- Tagged queueing
- SCSI task attribute support (ordered, head of queue, simple tags)
- SCSI implicit command ordering support. (e.g. if a read follows a mode
select, the read will be blocked until the mode select completes.)
- Full task management support (abort, LUN reset, target reset, etc.)
- Support for multiple ports
- Support for multiple simultaneous initiators
- Support for multiple simultaneous backing stores
- Persistent reservation support
- Mode sense/select support
- Error injection support
- High Availability support (1)
- All I/O handled in-kernel, no userland context switch overhead.
(1) HA Support is just an API stub, and needs much more to be fully
functional.
ctl.c: The core of CTL. Command handlers and processing,
character driver, and HA support are here.
ctl.h: Basic function declarations and data structures.
ctl_backend.c,
ctl_backend.h: The basic CTL backend API.
ctl_backend_block.c,
ctl_backend_block.h: The block and file backend. This allows for using
a disk or a file as the backing store for a LUN.
Multiple threads are started to do I/O to the
backing device, primarily because the VFS API
requires that to get any concurrency.
ctl_backend_ramdisk.c: A "fake" ramdisk backend. It only allocates a
small amount of memory to act as a source and sink
for reads and writes from an initiator. Therefore
it cannot be used for any real data, but it can be
used to test for throughput. It can also be used
to test initiators' support for extremely large LUNs.
ctl_cmd_table.c: This is a table with all 256 possible SCSI opcodes,
and command handler functions defined for supported
opcodes.
ctl_debug.h: Debugging support.
ctl_error.c,
ctl_error.h: CTL-specific wrappers around the CAM sense building
functions.
ctl_frontend.c,
ctl_frontend.h: These files define the basic CTL frontend port API.
ctl_frontend_cam_sim.c: This is a CTL frontend port that is also a CAM SIM.
This frontend allows for using CTL without any
target-capable hardware. So any LUNs you create in
CTL are visible in CAM via this port.
ctl_frontend_internal.c,
ctl_frontend_internal.h:
This is a frontend port written for Copan to do
some system-specific tasks that required sending
commands into CTL from inside the kernel. This
isn't entirely relevant to FreeBSD in general,
but can perhaps be repurposed.
ctl_ha.h: This is a stubbed-out High Availability API. Much
more is needed for full HA support. See the
comments in the header and the description of what
is needed in the README.ctl.txt file for more
details.
ctl_io.h: This defines most of the core CTL I/O structures.
union ctl_io is conceptually very similar to CAM's
union ccb.
ctl_ioctl.h: This defines all ioctls available through the CTL
character device, and the data structures needed
for those ioctls.
ctl_mem_pool.c,
ctl_mem_pool.h: Generic memory pool implementation used by the
internal frontend.
ctl_private.h: Private data structres (e.g. CTL softc) and
function prototypes. This also includes the SCSI
vendor and product names used by CTL.
ctl_scsi_all.c,
ctl_scsi_all.h: CTL wrappers around CAM sense printing functions.
ctl_ser_table.c: Command serialization table. This defines what
happens when one type of command is followed by
another type of command.
ctl_util.c,
ctl_util.h: CTL utility functions, primarily designed to be
used from userland. See ctladm for the primary
consumer of these functions. These include CDB
building functions.
scsi_ctl.c: CAM target peripheral driver and CTL frontend port.
This is the path into CTL for commands from
target-capable hardware/SIMs.
ctladm/Makefile,
ctladm/ctladm.8,
ctladm/ctladm.c,
ctladm/ctladm.h,
ctladm/util.c: ctladm(8) is the CTL management utility.
It fills a role similar to camcontrol(8).
It allow configuring LUNs, issuing commands,
injecting errors and various other control
functions.
usr.bin/Makefile: Add ctlstat.
ctlstat/Makefile
ctlstat/ctlstat.8,
ctlstat/ctlstat.c: ctlstat(8) fills a role similar to iostat(8).
It reports I/O statistics for CTL.
sys/conf/files: Add CTL files.
sys/conf/NOTES: Add device ctl.
sys/cam/scsi_all.h: To conform to more recent specs, the inquiry CDB
length field is now 2 bytes long.
Add several mode page definitions for CTL.
sys/cam/scsi_all.c: Handle the new 2 byte inquiry length.
bz [Wed, 15 Feb 2012 16:56:52 +0000 (16:56 +0000)]
MFC r231505,231520:
Introduce a new NET_RT_IFLISTL API to query the address list. It works
on extended and extensible structs if_msghdrl and ifa_msghdrl. This
will allow us to extend both the msghdrl structs and eventually if_data
in the future without breaking the ABI.
The MFC is just to provide the new API to old stable branches to make
updating and if needed downgrading a lot easier for updates to 10.
Bump __FreeBSD_version to allow ports to more easily detect the new API.
mav [Wed, 15 Feb 2012 14:30:04 +0000 (14:30 +0000)]
MFC r231647:
Do not handle MOD_SHUTDOWN equally to MOD_UNLOAD in sound kernel module.
MOD_SHUTDOWN is not an end of existence, and there is a life after it.
In particular, code previously called on MOD_SHUTDOWN grabbed lock and
deallocated unit numbering. That caused infinite wait loop if snd_uaudio
tried to destroy its PCM device after that point.
projects / FreeBSD / stable / 9.git / log