on a rwlock while there are writers waiting. We normally favor
writers but when a reader already has at least one other read lock,
we favor the reader. We don't track all the rwlocks owned by a
thread, nor all the threads that own a rwlock -- we just keep
a count of all the read locks owned by a thread.
PR: 24641
Add tcode_str[] and improve debug message.
* sbp
If max_speed is negative, use the maximum speed which the
ohci chip supports. The default max_speed is -1.
* if_fwe
If tx_speed is negative, use the maximum speed which the
ohci chip supports. The default tx_speed is 2.
restore the general pre-randomid behaviour.
Setting the ip_id to zero causes several problems with
packet reassembly when a device along the path removes
the DF bit for some reason.
Other BSD and Linux have found and fixed the same issues.
PR: kern/60889
Tested by: Richard Wendland <richard@wendland.org.uk>
Approved by: re (scottl)
the ni_dpccountlock member is an ndis_kspin_lock, not an
ndis_spin_lock (the latter is too big).
Run if_ndis.c:ndis_tick() via taskqueue_schedule(). Also run
ndis_start() via taskqueue in certain circumstances.
Using these tweaks, I can now get the Broadcom BCM5701 NDIS
driver to load and run. Unfortunately, the version I have seems
to suffer from the same bug as the SMC 83820 driver, which is
that it creates a spinlock during its DriverEntry() routine.
I'm still debating the right way to deal with this.
frame, not the first. It is probably also not safe to free the mbuf chain
as soon as the OWN bit is cleared on the first descriptor since the chip
may not be done copying the frame into the transmit FIFO. Revert the part of
of busdma conversion (if_dc.c rev 1.115) which changed dc_txeof() to look for
the status in the first descriptor and free the mbuf chain when processing
the first descriptor for the frame, and revert the matching changes elsewhere
in the driver. This part of the busdma change caused the driver to report
spurious collisions and output errors, even when running in full-duplex mode.
Reverting the mbuf chain handling slightly complicates dc_dma_map_txbuf(),
since it is responsible for setting the OWN bits on the descriptors, but does
not normally have direct access to the mbuf chain.
Tested by:
Dejan Lesjak <dejan.lesjak at ijs.si> alpha/<Intel 21143 10/100BaseTX>
"Xin LI" <delphij at frontfree.net> i386/<Macronix 98713 10/100BaseTX>
Wiktor Niesiobedzki <bsd at w.evip.pl> i386/<3Com OfficeConnect 10/100B>
Reviewed by: mux
However, the code did allow deletion of files. Make deleting require the -m
flag, too.
PR: bin/60809
Submitted by: Alexander Melkov <melkov@comptek.ru>
held. However, if we need to translate a unicode message table message,
ndis_unicode_to_ascii() might malloc() some memory, which causes
a warning from witness. Avoid this by using some stack space to hold
the translated message. (Also bounds check to make sure we don't
overrun the stack buffer.)
replacement of struct proc by struct thread. This bug could cause a
NULL pointer dereferencation under certain circumstances (e. g. while
running /etc/rc.d/pcvt).
in subr_ndis and subr_ntoskrnl. This is faster and avoids potential
LOR whinage from witness (an LOR couldn't happen with the old code
since the interlocked inc/dec routines could not sleep with a lock
held, but this will keep witness happy and it's more efficient
anyway. I think.)
so we increment the right thing. (All work and not enough parens
make Bill something something...) This makes the RealTek 8139C+
driver work correctly.
Also fix some mtx_lock_spin()s and mtx_unlock_spin()s that should
have been just plain mtx_lock()s and mtx_unlock()s.
In kern_ndis.c: remove duplicate code from ndis_send_packets() and
just call the senddone handler (ndis_txeof()).
In fdformat.c a closing parenthesis is at the wrong place. Instead of
adding sizeof _PATH_DEV + 1 to the length of argv[optind], the length of the
string starting (sizeof _PATH_DEV + 1) characters after argv[optind]'s
beginning (accessing junk memory if we jump over the terminating null
character) is passed to malloc().
PR: bin/60026
Submitted by: Stefan Farfeleder <stefan@fafoe.narf.at>
rfc3042 Limited retransmit
rfc3390 Increasing TCP's initial congestion Window
inflight TCP inflight bandwidth limiting
All my production server have it enabled and there have been no
issues. I am confident about having them on by default and it gives
us better overall TCP performance.
Reviewed by: sam (mentor)
