incorrectly output, if the RB-tree enumeration happened to reuse the
same chain for a mode switch: that is, both ALLOW and BLOCK records
were appended for the same group, in the same mbuf packet chain.
This was introduced during an mbuf chain layout bug fix involving
m_getptr(), which obviously cannot count from offset 0 on the
second pass through the RB-tree when serializing the IGMPv3
group records into the pending mbuf chain.
Cut over to KTR_INET for IGMPv3 CTR usage.
respectively, as placeholder for future use of CTR() by
the networking code (MLDv2 will be going in shortly).
Mark KTR_SPARE* as being used in fact by cxgb (picked up
on a 'make universe' run).
topology of nehalem/corei7 based systems.
- Remove the cpu_cores/cpu_logical detection from identcpu.
- Describe the layout of the system in cpu_mp_announce().
Sponsored by: Nokia
and it only optimized out an ipi or mwait in very few cases.
- Skip the adaptive idle code when running on SMT or HTT cores. This
just wastes cpu time that could be used on a busy thread on the same
core.
- Rename CG_FLAG_THREAD to CG_FLAG_SMT to be more descriptive. Re-use
CG_FLAG_THREAD to mean SMT or HTT.
Sponsored by: Nokia
root cpuset of that jail.
Processes inside the jail will still be able to change child sets.
A superuser outside of a jail will still be able to change the jail cpuset
and thus limit the number of cpus available to the jail.
Problem reported by: 000.fbsd@quip.cz (Miroslav Lachman)
PR: kern/134050
Reviewed by: jeff
MFC after: 3 weeks
X-MFC: backout r191596
- Add some missing const.
- Move the size of the window spun by the registers to the softc
as neither using va_mem_size for this nor va_mem_base for the
start of the bus addresses is appropriate.
MFC after: 1 week
This change adds (possibly redundant) early check for invalid
state input parameter (including S0). Handling of S5 request
is reduced to simply calling shutdown_nice(). As a result
control flow of acpi_EnterSleepState is somewhat simplified
and resume/backout half of the function is not executed
for S5 (soft poweroff) request and invalid state requests.
Note: it seems that shutdown_nice may act as nop when initproc
is already initialized (to grab pid of 1), but init process is in
"pre-natal" state.
Tested by: Fabian Keil <fk@fabiankeil.de>
Reviewed by: njl, jkim
Approved by: rpaulo
KAME had explicit checks at one point using it, so just hide it behind
#if 0 for now until we are sure if we can completely dump it or not.
MFC after: 1 month
used for s/w retransmit schemes that want to access this information
w/o the overhead of decoding the raw frame. Note this also allows
drivers to record this information w/o writing the frame when the seq#
is obtained through an out-of-band mechanism (e.g. when a h/w assigned
seq# is reported in a descriptor on tx done notification).
Reviewed by: sephe, avatar
processed by ipfw once - avoid second ipfw_chk() call.
This saves us from unnecessary IPFW_RLOCK(), m_tag_find() calls and
ip/tcp/udp header parsing.
MFC after: 2 month
controllers may be configured as legacy IDE mode by modifying subclass and
progif without actually changing PCI device IDs. Instead of complicating
code, we always force AHCI mode while probing. Also we restore AHCI mode
while resuming per ATI/AMD register programming/requirement guides.
- Fix SB700/800 "combined" mode. Unlike SB600, this PATA controller can
combine two SATA ports and emulate one PATA channel as primary or secondary
depending on BIOS configuration. When the combined mode is disabled, this
channel disappears and it works just like SB600 PATA controller, however.
- Add more PCI device IDs for SB700/800 and adjust device descriptions.
SB800 shares the same PCI device IDs and added two more SATA IDs.
the nfsv4 Change attribute. There are 2 changes:
1 - The value now changes on metadata changes as well as data
modifications (incremented for IN_CHANGE instead of IN_UPDATE).
2 - It is now saved in spare space in the on-disk i-node so that it
survives a crash.
Since va_filerev is not passed out into user space, the only current
use of va_filerev is in the nfs server, which uses it as the directory
cookie verifier. Since this verifier is only passed back to the server
by a client verbatim and then the server doesn't check it, changing the
semantics should not break anything currently in FreeBSD.
Reviewed by: bde
Approved by: kib (mentor)
this driver to compile and limp along with the new layer. These changes
do not deal with proper locking around access to the HW. This is only
a starting point. I have not tested modem control but tip seems to work
okay and I can send and receive characters which I needed for one of my
-current boxes. I have not tied this driver back up to the build since
I don't want people to think it is ready for prime time. If anyone
else has some cycles to work on this feel free to!
Also add support for a 16 port PCI interface I have at work.
Glanced at by: ed
- Update mxge to use if_transmit(), and the new buf_ring
interfaces, so as to enable multiple transmit queues.
Use of if_transmit() is conditional on IFNET_BUF_RING,
and is enabled by default (as in if_em).
- Record a flow id on receive if receive hashing is active.
I currently only record the rx ring id (0..8) rather than
the 32-bit topelitz hash result, as doing the latter would
require shifting the driver to use a larger rx return ring.
Sponsored by: Myricom, Inc.
rearrange / replace / adjust several INIT_VNET_* initializer
macros, all of which currently resolve to whitespace.
Reviewed by: bz (an older version of the patch)
Approved by: julian (mentor)
Instead of using the antique insque()/remque() functions from
sys/queue.h, make this code use its own versions. Eventually the code
should just use the regular TAILQ/LIST macros.
(colloquially known as if_addrlist). Currently not acquired around
interface address loops that call out to the routing code due to
potential lock order issues.
MFC after: 3 weeks
initialize / release netgraph related state in iattach() / idetach()
functions called via the vnet module registration / initialization
framework, instead of initialization / cleanups being done in
mod_event handlers.
While here, introduce a crude hack aimed at preventing ng_ether to
autoattach to ng_eiface ifnets, which are also netgraph nodes already.
Reviewed by: bz
Approved by: julian (mentor)
first introduced @ r190909 with a vnet module deregistration
service.
kldunloadable modules, which are currently using vnet_mod_register()
to attach their per-vnet initialization routines to the vnet
initialization framework, should call vnet_mod_deregister() before
acknowledging MOD_UNLOAD requests in their mod_event handlers. Such
changes to the existing code base will follow in subsequent commits.
vnet_mod_deregister() does not check whether departing vnet modules
are registered as prerequisites for another module(s), so it should
be used with care. Currently I'm only aware of vnet modules which
are leafs on module dependency graphs that are kldunloadable.
This change also introduces per-vnet module destructor handler, which
calls vnet's module cleanup function, which (if required) has to be
registered in vnet module's vnet_modinfo_t structure .vmi_idetach
field. Once options VIMAGE becomes operational, the framework will
take care that module's cleanup function become invoked for each
active vnet instance, and that the memory allocated for each instance
gets freed. Currently calls to destructor handlers must always
succeed.
lookup of 'ia' from if_addrhead through most use. Note that we
currently have to drop it prematurely in some cases due to calls out to
the routing and interface code while using 'ia', but this closes many
races. Annotate several potential races that persist after this change.
Move to using M_NOWAIT for allocating new interface addresses due to
lock(s) being held.
MFC after: 3 weeks
This allows users to increase the maximum amount of pseudo-terminals
without changing any source code. Users must increase UT_LINESIZE before
attempting to increase kern.pts_maxdev.
pmap_clear_modify() on a page is pointless if that page is not mapped or
it is only mapped for read access. Instead, assert that the page is not
mapped or not mapped for write access as appropriate.
Eliminate unnecessary clearing of a page's dirty mask. Instead, assert
that the page's dirty mask is clear.
of the implementation of ioctls. This makes the mapping of ioctls to
specific privileges more explicit, and also simplifies the
implementation by reducing the use of FALLTHROUGH handling in switch.
While this is not intended to be a functional change, it does mean
that certain privilege checks are now performed earlier, so EPERM
might be returned in preference to EADDRNOTAVAIL for management
ioctls that could have failed for both reasons.
MFC after: 3 weeks
When memory is not zero'ed by firmware, uninitialized PCB can have bogus
contents, which appear as a saved onfault condition, Altivec context to
restore etc. and lead to corruption/crashes. This commit fixes such issues.
Submitted by: Michal Mazur arg ! semihalf dot com
Tested by: Andreas Tobler andreast-list ! fgznet dot ch
controller in the VIA southbridge functional in the CDS
(Configurable Development System) for MPC85XX.
The embedded USB controllers look operational but the
interrupt steering is still wrong.
that it is easier to lock:
- Handle the unsupported ioctl case at the beginning of in_control(),
handing off to ifp->if_ioctl, rather than looking up interfaces and
addresses unnecessarily in this case.
- Make it an invariant that ifp is always non-NULL when running
in_control()-implemented ioctls, simplifying the code structure.
MFC after: 3 weeks
vmopag" implementation. The vm_page_lookup() code modifies splay tree
of the object pages, and asserts that object lock is taken. First issue
could cause kernel data corruption, and second one instantly panics the
INVARIANTS-enabled kernel.
Take the advantage of the fact that object->memq is ordered by page index,
and iterate over memq to calculate the runs.
While there, make the code slightly more style-compliant by moving
variables declarations to the right place.
Discussed with: jhb, alc
Reviewed by: alc
MFC after: 2 weeks
used in some cases):
- Ignore DMA tag boundaries when allocating bounce pages. The boundaries
don't determine whether or not parts of a DMA request bounce. Instead,
they are just used to carve up segments.
- Allow tags with sub-page alignment to share bounce pages since bounce
pages are always page aligned.
Reviewed by: scottl (amd64)
MFC after: 1 month
(1) Don't manually configure if_output(), ether_ifattach() will do that
for us as part of link-layer setup.
(2) Call if_detach() before stopping nve in order to prevent calls into
the device driver after the driver has started shutting down.
Reviewed by: jhb
MFC after: 2 weeks
interface pointer, but also a reference to it.
Modify ifioctl() to use ifunit_ref(), holding the reference until
all ioctls, etc, have completed.
This closes a class of reader-writer races in which interfaces
could be removed during long-running ioctls, leading to crashes.
Many other consumers of ifunit() should now use ifunit_ref() to
avoid similar races.
MFC after: 3 weeks
pointers to "dead" implementations that no-op rather than invoking
the device driver. This would generally be unexpected and
possibly quite badly handled by most device drivers after
if_detach() has completed.
Reviewed by: bms
MFC after: 3 weeks
if_alloc(), and portions of data structure destruction from if_detach()
to if_free(). These changes leave more of the struct ifnet in a
safe-to-access condition between alloc and attach, and between detach
and free, and focus on attach/detach as stack usage events rather than
data structure initialization.
Affected fields include the linkstate task queue, if_afdata lock,
address lists, kqueue state, and MAC labels. ifq_attach() ifq_detach()
are not moved as ifq_attach() may use a queue length set by the device
driver between if_alloc() and if_attach().
MFC after: 3 weeks
calls if_free(), and remains set if the refcount is elevated. IF_DYING
skips the bit in the if_flags bitmask previously used by IFF_NEEDSGIANT,
so that an MFC can be done without changing which bit is used, as
IFF_NEEDSGIANT is still present in 7.x.
ifnet_byindex_ref() checks for IFF_DYING and returns NULL if it is set,
preventing new references from by acquired by index, preventing
monitoring sysctls from seeing it. Other lookup mechanisms currently
do not check IFF_DYING, but may need to in the future.
MFC after: 3 weeks
operates in the common memory mode and use polling mode to control
the status of operations as I don't have any board with interrupt
line routed yet. I'll add the GPIO interrupt driven mode as soon
as I get one.
