The receive function em_process_receive_interrupts() unlocks the
adapter while ether_input() processes the packet, and then locks
it back. In the meantime, em_init() may be called, either from
em_watchdog() from softclock interrupt or from the ifconfig(8)
program. The em_init() resets the card, in particular it sets
adapter->next_rx_desc_to_check to 0 and resets hardware RX Head
and Tail descriptor pointers. The loop in
em_process_receive_interrupts() does not expect these things to
change, and a mess may result.
This fixes long wedges of em(4) interfaces receive part under high
load and IP fastforwarding enabled.
PR: kern/87418
Submitted by: Dmitrij Tejblum <tejblum yandex-team.ru>
that the following funtions are not used, wrap in '#ifdef noused' for the
moment.
bstp_enable_change_detection
bstp_disable_change_detection
bstp_set_bridge_priority
bstp_set_port_priority
bstp_set_path_cost
the ExCA spec, and close cousins:
o Write an activate routine that works.
o merge a couple of items from oldcard before they are lost
o write a deactivate routine
I suspect we're still a ways away from having this work, but maybe for
6.1/5.5?
- move the function pointer definitions to if_bridgevar.h
- move most of the logic to the new BRIDGE_INPUT and BRIDGE_OUTPUT macros
- remove unneeded functions from if_bridgevar.h and sort a little.
previous revision only restored the MP optimization.
Describe the optimization strategy for TLB invalidations in a comment.
Reviewed by: ups@
MFC after: 3 days
Use bridge_ifdetach() to notify the bridge that a member has been detached. The
bridge can then remove it from its interface list and not try to send out via a
dead pointer.
as a Novell NE-2000. This is necessary for unpatched qemu working
correctly. qemu claims to be a RTL8029, but doesn't implement the
RTL8029 specific registers at this time. I've created patches for
that, but there's no reason we can't use qemu's emulation w/o these
patches. This should make life easier for those folks that boot
FreeBSD via qemu.
ed_probe_generic8390 where we're calling it. It will be done as part
of ed_probe_Novel_generic after things are setup in a way that
ed_probe_generic8390 will grok.
o Fix operator precedence botch that causes a panic when setting the media
type for 10baseT connections.
o Save the type of device so that it prints with the rest of the probe.
# this should make it work with qemu again, but only if it has my patches
# to actually implement the RTL8029 specific registers.
- Use device_printf() and if_printf() and remove nge_unit.
- Use callout_init_mtx() and remove nge_tick_locked() as nge_tick() is now
always called with the driver lock held.
- Use M_ZERO to contigmalloc() when allocating nge_ldata. It was possible
for the random garbage to be used in certain cases otherwise.
- Cleanup attach error handling including no longer leaking nge_ldata.
- Add locking to the ifmedia callouts.
- Lock accesses to if_hwassist and if_capenable in nge_ioctl().
Submitted by: Yuriy N. Shkandybin jura at networks dot ru (1, 3, 4)
Tested by: Yuriy N. Shkandybin jura at networks dot ru
MFC after: 3 days
probed and attached, not on the first call to device_get_softc().
- Add a cross reference to DEVICE_PROBE regarding the caveats of using the
softc in a driver's probe routine.
- Fix a grammar bogon.
PR: docs/87176 (1)
Submitted by: Devon H. O'Dell dodell at offmyserver dot com (1)
MFC after: 3 days
microtime to bintime. However, one standaline .Nm wasn't changed, and as
a result, the manpage claimed that bintime was added in both 5.0 and 3.0.
Fix by listing microtime explicitly.
- Fix a grammar bogon.
PR: docs/87147 (1)
Submitted by: Matthew Luckie (1)
MFC after: 3 days
systems (or on FreeBSD systems when using ports).
2) Overhaul the versioning logic. In particular,
SHLIB_MAJOR number is now computed as "major+minor",
which ensures library versions are the same for
the FreeBSD build system and the portable
libtool/autoconf/automake build system.
cloner. This ensures that ifc->ifc_units is not prematurely freed in
if_clone_detach() before the clones are destroyed, resulting in memory modified
after free. This could be triggered with if_vlan.
Assert that all cloners have been destroyed when freeing the memory.
Change all simple cloners to destroy their clones with ifc_simple_destroy() on
module unload so the reference count is properly updated. This also cleans up
the interface destroy routines and allows future optimisation.
Discussed with: brooks, pjd, -current
Reviewed by: brooks
notifications when LIO operations completed. These were the problems
with LIO event complete notification:
- Move all LIO/AIO event notification into one general function
so we don't have bugs in different data paths. This unification
got rid of several notification bugs one of which if kqueue was
used a SIGILL could get sent to the process.
- Change the LIO event accounting to count all AIO request that
could have been split across the fast path and daemon mode.
The prior accounting only kept track of AIO op's in that
mode and not the entire list of operations. This could cause
a bogus LIO event complete notification to occur when all of
the fast path AIO op's completed and not the AIO op's that
ended up queued for the daemon.
Suggestions from: alc
auto-start, set cnp.cn_lkflags to LK_EXCLUSIVE. This flag must now
be set so that lockmgr knows what kind of lock to acquire, and it
will panic if not specified. This resulted in a panic when using
extended attributes on UFS1 as of locking work present in the 6.x
branch.
This is a RELENG_6_0 merge candidate.
Reported by: lofi
MFC after: 3 days
