interrupt handlers. Instead, load and use it atomically as necessary.
This reduces mode switching overhead for "polled" mode interrupt handling
from 5 i/o's to 3 (per service type, per port) so that polled mode is only
slightly more inefficient than "interrupt" mode.
* Update drivers to the latest version of the bus interface.
The ISA drivers' use of the new resource api is minimal. Garrett has
some much cleaner drivers which should be more easily shared between
i386 and alpha. This has only been tested on cia based machines. It
should work on lca and apecs but I might have broken something.
If the next available mailbox is not in the free state, print a warning
and handle the condition as a temporary resource shortage. The condition
should never happen, but we shouldn't panic since recovery is possible.
Convert from BT'isms to AHA'isms
Don't fail the probe if the illegal command bit is set in the status
register. If the BusLogic MultiMaster probe preceeded us, it may well
have determined that the card we are attaching to was not a true MultiMaster
by sending us a command that fails on the 154X.
Reset the adapter before doing the inquiry. This provides extra sanity
and will also clear the illegal command status bit that my be left over
from the MultiMaster probe.
truncated to 32 bits.
* Change the calling convention of the device mmap entry point to
pass a vm_offset_t instead of an int for the offset allowing
devices with a larger memory map than (1<<32) to be supported
on the alpha (/dev/mem is one such).
These changes are required to allow the X server to mmap the various
I/O regions used for device port and memory access on the alpha.
base register that controls Ultra-DMA, so we need to examine all possible
base registers instead of just giving up at the first empty one.
Also, looking at the source code to the BIOS, I see that they are also
checking for 0xffffffff as an invalid value so do the same. Stefan may like
to clean this up, but at least now I can find my PCI IDE registers.
the top half to do it.
Put in a dubious check for subdisk integrity when trying to bring
up a plex where others are already up. This particular kludge is
crying out for a rewrite of the whole state code.
Add code to set_plex_state and set_volume_state to defer updates when
called from an interrupt context. This doesn't happen yet, but it
could do.
basic i/o functions, bit-banging mechanism is implemented by dev/iicbus/iicbb.c
immio.c: some bootverbose logs to watch zip+ connect/disconnect process
config_drive:
Catch an instance of anonymous drives. Doubtless many remain.
interrupt.c:
complete_rqe:
Call logrq to log iodone events if DEBUG_LASTREQS is set.
Call set_sd_state with setstate_noupdate to avoid buffered I/O out
of interrupt context.
Use define DEBUG_RESID instead of constant.
memory.c:
Remove dead expandrq() function
Malloc:
Remove directory component of file names in malloc table.
Add function vinum_rqinfo (part of the request tracing stuff).
request.c:
Add function logrq (part of the request tracing stuff).
vinumstrategy:
Check whether config needs to be written to disk, do it if so.
This is a stopgap until the Vinum daemon (bacchusd? oenologistd?)
is written.
If DEBUG_LASTREQS is set, call logrq to log user buffer headers.
launch_requests:
Correct format of debug output to console.
If DEBUG_LASTREQS is set, call logrq to log request elements.
request.h:
Add definitions for request trace.
state.c:
set_sd_state:
Check flags for setstate_noupdate. If set, don't write the config
to disk, just set global VF_DIRTYCONFIG flag. This is part of the
kludge to avoid writing config from an interrupt context.
vinumext.h:
Add declaration for vinum_rqinfo, put inside #ifdef DEBUG
Remove dead macro expandrq
vinumio.h:
Increase maximum ioctl reply length to 4 kB if DEBUG is set.
Define VINUM_RQINFO ioctl if DEBUG is set.
vinumioctl.c:
vinumioctl:
Change implementation of VINUM_DEBUG ioctl: use a debug flag
(DEBUG_REMOTEGDB) to decide whether to go into remote debugging or
not.
Implement VINUM_RQINFO.
vinumkw.h:
Define kw_info even when not debugging.
vinumvar.h:
Define VF_DIRTYCONFIG
Add pointers to request info to vinum_info if DEBUG is set.
Define setstate_noupdate
Define additional debug bits DEBUG_RESID, DEBUG_LASTREQS and
DEBUG_REMOTEGDB.
Correct a problem where an external bus reset on the 'background' channel of
a Twin Channel EISA controller could put the driver into an infinite loop.
Noticed by: Twin Channel bug, Joerg Wunsch <joerg@FreeBSD.org>
Submitted by: -Wunused, Poul-Henning Kamp <phk@freebsd.org>
Fixed bug in advansys.c where we did not properly clean up ccb_info data
structures in softc teardown.
Submitted by: Poul-Henning Kamp <phk@freebsd.org>
bogus comment to proper place.
This should fix the hangs people are seeing under very heavy load, at
least it does for me. Please let me know if you continue to have
problems.
hasseen_isadev so this will be less noisy when conflicts do exist.
Also eliminate redundant warnings about conflicts.
Requested by: bde
Reviewed by: gibbs
fxp_stop is called as the first thing in fxp_init, and if the tx desc
list has junk in it, the system may panic. This bug showed up as a side
effect of the changes in rev 1.56, but has been in the code since the
beginning.
this myself for ages, but wasn't able to get any feedback from the people
that I sent it to for testing.
Guy Helmer <ghelmer@scl.ameslab.gov> has given it a shot (before getting on
a plane, thanks!) and it appears to stop his reproducable page fault panic
in the testing he was able to do.
o For bt and aha only probe the one I/O range if a specific I/O is specified
in the config file.
o Don't even try to probe I/O ranges that have been seen already.
o If we conflict with an IRQ or DRQ, then fail the probe.
Requested by: bde, gibbs
Approved by: jkh
is a work-around from an LRAM access bug on the 940UA. In a future
microcode revision, the high 16bits of residual information will be moved
to a safe location and we'll return to 32bit residuals. Since we only
allow 64KB I/O, 16bits is enough.
DEB macro). There are probably quite a few other messages that warrant
a similar treatment, and many more that should be converted to plain
log messages (e.g. "WARNING: wrintr but write DMA inactive!"). Now
that I think of it, same goes for the CAM code (e.g. the famed "tagged
openings" message)
Disable DPARCKEN in the DSCOMMAND0 register on the aic7890/91/96/97.
Parity checking is broken for some chip/MB combinations and this
is the work around recommended by Adaptec.
dpt_pci.c:
Remove a superflous '{' that prevented DPT_ALLOW_MEMIO from working.
pcireg.h:
Add a definition for Parity Error Reponse bit in the PCI Space
command register.
queued.
Perform dma segment setup outside of splcam protection as this can take
some time and the protection is not necessary.
Inline a function.
Clean up some whitespace.
routines are necessary to allow the use of certain types of hardware on
the alpha, particularly a Myrinet card.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
reported bug.
At using tcpdump for cs interface, tcpdump only dump packet which
src or dst MAC-address is cs interface. cs interface can't look up
packet between others.
Submitted by: MIHIRA "Sanpei" Yoshiro <sanpei@sanpei.org>
add support for Vibra16X, OPTi925, and bring in several assorted
fixes to the code and documentation.
Also present here are apm hooks so that laptops can properly
reconfigure the hardware after suspend (tested on the Libretto50).
Reviewed by: jordan
- Express various sizes in bytes, rather than Kbytes, in the video
mode and adapter information structures.
- Fill 0 in the linear buffer size field if the linear frame buffer
is not available.
- Remove SW_VESA_USER ioctl. It is still experimetal and was not meant
to be released.
- Fix missing cast operator.
- Correctly handle pointers returned by the VESA BIOS. The pointers
may point to the area either in the BIOS ROM or in the buffer supplied
by the caller.
- Set the destructive cursor at the right moment.
o Use the board id command to find out what kind of board
we're talking to. If we're talking to a board that is has
an ID that is shared between boards supported by the aha
driver and the bt driver, then use the bt's geometry
register to weed out the bt cards. Otherwise assume that we
support this card.
o Remove bt esetup command sending to the card. It seems to
wedge too many cards.
o Revert to doing a soft reset after an invalid command. This
change didn't fix anything, so I'm backing it out. The
whole issue of card resetting needs to be revisisted at some
point so that we can do it properly on all hardware.
o GC unused stuff in some places.
o Unlock mailbox interface if we have a new card. Before only newer cards
(B or newer) that had the BIOS disabled would probe. Cards with the
BIOS enabled would fail to probe in the mailbox initialization code.
o Increase the number of ccbs and sg to 17 from 16 to support 64k I/O
on a non page aligned boundary. Ideas for dynamic determination of this
value welcomed, as more of these are better.
o Took credit for this driver, even though I derived it from Justin's code.
Made sure that Justin's copyright from bt.c was preserved, along with
his name, since the error handling code is nearly identical. Add my
own, identical copyright. Point people to aha_isa.c.
Cards tested: 1542C and 1542CF. The B and CP might work now as well,
but logistical problems precluded me from testing them this evening
(if you have jumper settings for the B card, please send me private
mail).
- there were too many global variables (there still are :-).
- the data section was bloated by explicit initializations of static
variables to 0 (only fixed the recently changed ones).
- WRAPHIST() had silly parentheses around foo->bar.
- the comment about inline functions was stale.
- the comment about Userconfig presumes too much about the boot environment.
- `i' was reused confusingly in scioctl().
- the declaration of `butmap' used a deprecated K&R misfeature.
- the initializeation of `butmap' had an unnecessary line break.
- `unsigned char' was not consistently (mis)spelled as u_char.
- English was poor in a comment in videoio.c.
Submitted by: bde
- Handle pixel (raster text) mode properly.
- Clear screen and paint border right.
- Paint text attribute (colors).
- Fix off-by-one errors.
- Add some sanity checks.
- Fix some function prototypes.
- Add some comment lines.
- Define generic text mode numbers so that the user can just give
"80x25", "80x60", "132x25"..., rather than "VGA_xxx", to `vidcontrol'
to change the current video mode. `vidoio.c' and `vesa.c' will map
these numbers to real video mode numbers appropriate and available
with the given video hardware. I believe this will be useful to make
syscons more portable across archtectures.
Bump the lun field in the eata ccb to 5 bits. We still only
use 3 of them, but we may use the rest at a later date.
dpt_scsi.c:
Default to only 32 S/G segments.
Bzero our CCB array after allocation.
- ppbus was released before checking if still in disk_mode by vpoio and immio:
the microseq (in_disk_mode) was never executed. Fixed.
- nlptintr() renamed to nlpt_intr(). spltty() inserted in nlptintr() before
nlpt_intr() call
those extra ones yet, anyway.
In dpttimeout, expect that the controller will complete aborted CCBs through
the interrupt handler. This corrects a panic that was caused by completing
the same transaction twice during timeout recovery.
Honor the tag times types expressed by the user and pass them down to
the controller.
a timeout, we must remove the pending SCB from the disconnected list
or risk list corruption when our BDR request using the same SCB is placed
on the waiting list.
Eradicate some silly uses of u_int8_t that just serve to slow the code down.
+ Change some messages about CCB memory allocation
+ Turn a failure to DMA map all of a transaction due to lack of
ISP queue entries into a requeue operation (instead of the
case where it had been treated the same as a DMA too big
operation).
+ put back splsoftvm around bus_dmamap_load calls.
+ cleanup (and fix a glaring bug) in the and of the dma setup
routine. Also, the dma setup routines either return CMD_QUEUED
(for success) or CMD_COMPLETE (for failure) or CMD_EAGAIN
(for requeuing for resource shortage reasons).
