description: TASKQUEUE_FAST_DEFINE(9), TASKQUEUE_FAST_DEFINE_THREAD(9),
taskqueue_create_fast(9). They deal with taskqueues intended for use
in fast interrupt handlers.
Approved by: cognet (mentor)
Reviewed by: keramida
path relative to /usr/include. It looks much better anyway.
Instead of referencing "socket", which is bogus, reference
'sys/socket.h', which is what should be placed here from
the beggining.
Suggested by: maxim
documents away from being public accessible. Replace link to
the Bluetooth specification document with the document name.
Pointed out by: SoftLover < slserg at uic dot tula dot ru >
MFC after: 3 days
parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.
This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation
Discussed with: rwatson, re
NET_NEEDS_GIANT. netatm has been disconnected from the build for ten
months in HEAD/RELENG_7. Specifics:
- netatm include files
- netatm command line management tools
- libatm
- ATM parts in rescue and sysinstall
- sample configuration files and documents
- kernel support as a module or in NOTES
- netgraph wrapper nodes for netatm
- ctags data for netatm.
- netatm-specific device drivers.
MFC after: 3 weeks
Reviewed by: bz
Discussed with: bms, bz, harti
Even though single linked lists allow items to be removed at constant time
(when the previous element is known), the queue macro's don't allow this.
Implement new REMOVE_NEXT() macro's. Because the REMOVE() macro's also
contain the same code, make it call REMOVE_NEXT().
The OpenBSD version of SLIST_REMOVE_NEXT() needs a reference to the list
head, even though it is unused. We'd better mimic this. The STAILQ version
also needs a reference to the list. This means the prototypes of both
macro's are the same.
Approved by: philip (mentor)
PR: kern/121117
To preserve the existing behavior of etc/rc.d/netif, add code to wait
up to if_up_delay seconds (30 seconds by default) for a default route to
be configured if there are any dhcp interfaces. This should be extended
to test that the interface is actually up.
X-MFC after:
issue in termios.4, ttydefaults.h does not exist in /usr/include
but in /usr/include/sys.
MFC after: 3 days
Submitted by: Ed Schouten (ed at 80386 dot nl)
support for VMFS_ALIGNED_SPACE, which requests the allocation of an
address range best suited to superpages. The old options TRUE and FALSE
are mapped to VMFS_ANY_SPACE and VMFS_NO_SPACE, so that there is no
immediate need to update all of vm_map_find(9)'s callers.
While I'm here, correct a misstatement about vm_map_find(9)'s return
values in the man page.
more wlans_<ifn> and create_args_<ifn>
Add documentation for these variants and generally update the wireless
device example.
There is are very short lived shim from vaps_<ifn> which produces
a warning and vap_create_<ifn> which does not. Misuse the MFC
notification service to remind me to remove them.
MFC after: 3 weeks
Note this includes changes to all drivers and moves some device firmware
loading to use firmware(9) and a separate module (e.g. ral). Also there
no longer are separate wlan_scan* modules; this functionality is now
bundled into the wlan module.
Supported by: Hobnob and Marvell
Reviewed by: many
Obtained from: Atheros (some bits)
mode at boot time. Multiple profiles can be started at the same time.
The whole idea is very similar to the ppp rc script.
Document Bluetooth knobs in rc.conf(5)
MFC after: 1 week
commands can be written to /dev/psm%d and status can be read back from it.
- Reflect the change in psm(4) and bump version for ports.
MFC after: 1 week
buffer kernel descriptors, which is used to allow the buffer
currently in the BPF "store" position to be assigned to userspace
when it fills, even if userspace hasn't acknowledged the buffer
in the "hold" position yet. To implement this, notify the buffer
model when a buffer becomes full, and check that the store buffer
is writable, not just for it being full, before trying to append
new packet data. Shared memory buffers will be assigned to
userspace at most once per fill, be it in the store or in the
hold position.
This removes the restriction that at most one shared memory can
by owned by userspace, reducing the chances that userspace will
need to call select() after acknowledging one buffer in order to
wait for the next buffer when under high load. This more fully
realizes the goal of zero system calls in order to process a
high-speed packet stream from BPF.
Update bpf.4 to reflect that both buffers may be owned by userspace
at once; caution against assuming this.
per-profile variables of the form ppp_<profile>_unit. No ppp_unit
variable is supported since tying the same unit to more than one profile
won't work.
PR: conf/122127
MFC after: 1 week
to _ when evaluating ppp_<profile>_nat and ppp_<profile>_mode. Document
the per-profile variables.
PR: conf/121452, conf/122127 (partial)
MFC after: 1 week
Removed dead code that assumed that M_TRYWAIT can return NULL; it's not true
since the advent of MBUMA.
Reviewed by: arch
There are ongoing disputes as to whether we want to switch to directly using
UMA flags M_WAITOK/M_NOWAIT for mbuf(9) allocation.
overhead of packet capture by allowing a user process to directly "loan"
buffer memory to the kernel rather than using read(2) to explicitly copy
data from kernel address space.
The user process will issue new BPF ioctls to set the shared memory
buffer mode and provide pointers to buffers and their size. The kernel
then wires and maps the pages into kernel address space using sf_buf(9),
which on supporting architectures will use the direct map region. The
current "buffered" access mode remains the default, and support for
zero-copy buffers must, for the time being, be explicitly enabled using
a sysctl for the kernel to accept requests to use it.
The kernel and user process synchronize use of the buffers with atomic
operations, avoiding the need for system calls under load; the user
process may use select()/poll()/kqueue() to manage blocking while
waiting for network data if the user process is able to consume data
faster than the kernel generates it. Patchs to libpcap are available
to allow libpcap applications to transparently take advantage of this
support. Detailed information on the new API may be found in bpf(4),
including specific atomic operations and memory barriers required to
synchronize buffer use safely.
These changes modify the base BPF implementation to (roughly) abstrac
the current buffer model, allowing the new shared memory model to be
added, and add new monitoring statistics for netstat to print. The
implementation, with the exception of some monitoring hanges that break
the netstat monitoring ABI for BPF, will be MFC'd.
Zerocopy bpf buffers are still considered experimental are disabled
by default. To experiment with this new facility, adjust the
net.bpf.zerocopy_enable sysctl variable to 1.
Changes to libpcap will be made available as a patch for the time being,
and further refinements to the implementation are expected.
Sponsored by: Seccuris Inc.
In collaboration with: rwatson
Tested by: pwood, gallatin
MFC after: 4 months [1]
[1] Certain portions will probably not be MFCed, specifically things
that can break the monitoring ABI.
scripts at boot. This is currently disabled by default. /etc/ddb.conf
contains some potentially reasonable default scripts.
PR: conf/119995
Submitted by: Scot Hetzel <swhetzel at gmail dot com> (Earlier version)
X-MFC after: textdumps
The logical disks will appear as /dev/lvm/<vol group>-<logical vol>, for
instance /dev/lvm/vg0-home. G_LINUX_LVM currently supports linear stripes with
segments on multiple physical disks. The metadata is read only, logical
volumes can not be allocated or resized.
Reviewed by: Ivan Voras
Previously known as geom_lvm(4), rename requested by des, phk.
- mention LRO support
- describe multi-slice related tunables.
- correct DIAGNOSTICS section to reflect that missing firmware
is non-fatal.
Submitted by: gallatin
The logical disks will appear as /dev/lvm/<vol group>-<logical vol>, for
instance /dev/lvm/vg0-home. GLVM currently supports linear stripes with
segments on multiple physical disks. The metadata is read only, logical
volumes can not be allocated or resized.
Reviewed by: Ivan Voras
NOP-message polling in ciss_periodic().
Note that setting the tunable to non-zero can be workaround only for
`ADAPTER HEARTBEAT FAILED' problem, and may freeze the system w/o
the problem.
Reviewed by: scottl
Reported by: Attila Nagy
MFC after: 3 days
