gcc's internal exit() prototypes and the (futile) hackery that we did to
try and avoid warnings. main() was renamed for similar reasons.
Remove an exit related hack from makesyscalls.sh.
!VFS_AIO case. Lots of things have hooks into here (kqueue, exit(),
sockets, etc), I elected to keep the external interfaces the same
rather than spread more #ifdefs around the kernel.
"kern/sys_generic.c:358: warning: cast discards qualifiers from pointer
target type"
The idea for using the uintptr_t intermediate cast for de-constifying
a pointer was hinted at by bde some time ago.
with an error condition such as EINTR, EWOULDBLOCK, and ERESTART,
are reported to the application, not silently conceal. This
behavior was copied from the {read,write}v() syscalls, and is
appropriate there but not here.
o Correct a bug in extattr_delete() wherein the LOCKLEAF flag is
passed to the wrong argument in namei(), resulting in some
unexpected errors during name resolution, and passing in an unlocked
vnode.
Obtained from: TrustedBSD Project
gif/faith/stf moved to 0xfN entries, since their previous location
is allocated to some other interfaces.
Also add the IFT_PVC, which is the ATM PVC subinterface from ALTQ.
This also syncs us up a bit to NetBSD again.
This change requires a total recompilation of all kmem users, as
itojun told me.
Next in line is synching to the IANI SMI list.
Approved by: itojun
Disable "cache line streaming" for aic7890/91 Rev A chips. I
have never seen these chips fail using this feature, but
some of Adaptec's regression tests have.
Explicitly set "cache line streaming" to on for aic7896/97
chips. This was happening before, but this documents the
fact that these chips will not function correctly without
CACHETHEEN set.
aic7xxx.h:
Add new bug types.
Fix a typo in a comment.
aic7xxx.reg:
Add a definition for the SHVALID bit in SSTAT3 for Ultra2/3
chips. This bit inicates whether the bottom most (current)
element in the S/G fifo has exhausted its data count.
aic7xxx.seq:
Be more careful in how we turn off the secondary DMA channel.
Being less careful may hang the PCI bus arbitor that negotiates
between the two DMA engines.
Remove an unecessary and incorrect flag set operation in
the overrun case.
On Ultra2/3 controllers, clear the dma FIFO before starting
to handle an overrun. We don't want any residual bytes from
the beginning of the overrun to cause the code that shuts
down the DMA engine from hanging because the FIFO is not
(and never will be) empty.
If the data fifo is empty by the time we notice that a
read transaction has completed, there is no need to
hit the flush bit on aic7890/91 hardware that will not
perform an auto-flush. Skip some cycles by short circuiting
the manual flush code in this case.
When transitioning out of data phase, make sure that we
have the next S/G element loaded for the following
reconnect if there is more work to do. The code
would do this in most cases before, but there was
a small window where the current S/G element could
be exhausted before our fetch of the next S/G element
completed. Since the S/G fetch is already initiated
at this point, it makes sense to just wait for the
segment to arrive instead of incuring even more latency
by canceling the fetch and initiating it later.
Fast path the end of data phase handling for the last
S/G segment. In the general case, we might have
worked ahead a bit by stuffing the S/G FIFO with
additional segments. If we stop before using them
all, we need to fixup our location in the S/G stream.
Since we can't work past the last S/G segment, no
fixups are ever required if we stop somewhere in
that final segment.
Fix a little buglet in the target mode dma bug handler.
We were employing the workaround in all cases instead
of only for the chips that require it.
Fix the cause of SCB timeouts and possible "lost data"
during read operations on the aic7890. When sending
a data on any Ultra2/3 controller, the final segment
must be marked as such so the FIFO will be flushed and
cleaned up correctly when the transfer is ended. We
failed to do this for the CDB transfer and so, if
the target immediately transfered from command to data
phase without an intervening disconnection, the first
segment transferred would be any residual bytes from
the cdb transfer. The Ultra160 controllers for some
reason were not affected by this problem.
Many Thanks to Tor Egge for bringing the aic7890 problem
to my attention, providing analysis, as well as a mechanism
to reproduce the problem.
is not desired, then the user can register an EV_SIGNAL filter to
explicitly catch a signal event.
Change requested by: jayanth, ps, peter
"Why is kevent non-restartable after a signal?"
stored at a different location in the PCI space, so adjust accordingly.
Also, when using more than two smart controllers in one machine, the
disks were assigned the wrong drive number; fix this as well.
This is in fact an Intel Orion chipset (82454KX/GX) which has been used
in HP NetServer's LS4 range.
HP Probably relabeled the DID. That's the only explanation I can find
plausible to this `mystery'.
doesn't exist. This could bite you by allowing you merrily install your
modules one on top of the other as the regular file ${DESTDIR}/modules
and think it completed properly...
operation or after it. If the ktrace operation was enabled while the
process was blocked doing IO, the race would allow it to pass down
invalid (uninitialized) data and panic later down the call stack.
