Return failure, if the enable bit corresponding to the map type has not
been set in the command register. This feature was requested by Justin
Gibbs, who pointed out that some early PCI to PCI bridges do not correctly
support memory windows (I assume because of the risk of deadlocks that
have been taken care of in the PCI 2.2 spec) and that some BIOS clears
the memory address decode enable bit in the command register of the PCI
device, if it finds them behind such a bridge.
1) Stop at the first map register that contains a zero value.
2) When testing for the map size work up from low values, since
this works around a bug in some BusLogic SCSI card, which has
the 16 upper port base address bits hardwired to zero.
The config register dump printed in the bootverbose case has
been slightly rearranged.
Adjust the data port address by adding the two low order bits of
the register number. The address port takes only a word address
(i.e. ignores the two low order bits written to it).
mode 1. Omission of this bit makes all config register accesses fail in
on recent chip sets ...
(The problem was reported and debug output provided by: Steve Passe)
- vector.s <- stub called by i386/exception.s
- icu_vector.s <- UP
- apic_vector.s <- SMP
Split icu.s into UP and SMP specific files:
- ipl.s <- stub called by i386/exception.s (formerly icu.s)
- icu_ipl.s <- UP
- apic_ipl.s <- SMP
This was done in preparation for massive changes to the SMP INTerrupt
mechanisms. More fine tuning, such as merging ipl.s into exception.s,
may be appropriate.
reality. There will be a new call interface, but for now the file
pci_compat.c (which is to be deleted, after all drivers are converted)
provides an emulation of the old PCI bus driver functions. The only
change that might be visible to drivers is, that the type pcici_t
(which had been meant to be just a handle, whose exact definition
should not be relied on), has been converted into a pcicfgregs* .
The Tekram AMD SCSI driver bogusly relied on the definition of pcici_t
and has been converted to just call the PCI drivers functions to access
configuration space register, instead of inventing its own ...
This code is by no means complete, but assumed to be fully operational,
and brings the official code base more in line with my development code.
A new generic device descriptor data type has to be agreed on. The PCI
code will then use that data type to provide new functionality:
1) userconfig support
2) "wired" PCI devices
3) conflicts checking against ISA/EISA
4) maps will depend on the command register enable bits
5) PCI to Anything bridges can be defined as devices,
and are probed like any "standard" PCI device.
The following features are currently missing, but will be added back,
soon:
1) unknown device probe message
2) suppression of "mirrored" devices caused by ancient, broken chip-sets
This code relies on generic shared interrupt support just commited to
kern_intr.c (plus the modifications of isa.c and isa_device.h).
be (eventually) architecture independent. It provides an emulation
of the ISA interrupt registration function register_intr(), but that
function does no longer manipulated the interrupt controller and
interrupt descriptor table, but calls the architecture dependent
function setup_icu() for that purpose.
After the ISA/EISA bus code has been modified to directly call the new
interrupt registartion functions (intr_create() and intr_connect()),
the emulation of register_intr() should be dropped.
The C level interrupt handler function should take a (void*) argument,
and the function pointer type (inthand2_t) should defined in some other
place than isa_device.h.
This commit is a pre-requisite for the removal of the PCI specific shared
interrupt code.
Reviewed by: dfr,bde
be (eventually) architecture independent. It provides an emulation
of the ISA interrupt registration function register_intr(), but that
function does no longer manipulated the interrupt controller and
interrupt descriptor table, but calls the architecture dependent
function setup_icu() for that purpose.
After theISA/EISA bus code has been modified to directly call the new
interrupt registartion functions (intr_create() and intr_connect()),
the emulation of register_intr() should be dropped.
The C level interrupt handler function should take a (void*) argument,
and the function pointer type (inthand2_t) should defined in some other
place than isa_device.h.
This commit is a pre-requisite for the removal of the PCI specific shared
interrupt code.
Reviewed by: dfr,bde
This is now the default, it delays most of the MP startup to the function
machdep.c:cpu_startup(). It should be possible to move the 2 functions
found there (mp_start() & mp_announce()) even further down the path once
we know exactly where that should be...
Help from: Peter Wemm <peter@spinner.dialix.com.au>
- The 1st (preparse_mp_table()) counts the number of cpus, busses, etc. and
records the LOCAL and IO APIC addresses.
- The 2nd pass (parse_mp_table()) does the actual parsing of info and recording
into the incore MP table.
This will allow us to defer the 2nd pass untill malloc() & private pages
are available (but thats for another day!).
When a panic occurs early in the SMP boot process 'cpunumber()' hangs,
causing the panic string to be lost. Now the system appears to hang
in 'breakpoint()', but at least the user sees the panic string before the
hang.
switch. I needed 'LINT' to compile for other reasons so I kinda got the
blood on my hands. Note: I don't know how to test this, I don't know if
it works correctly.
Don't search for interface addresses matching interface "NULL"
it's likely to cause a page fault..
this can be triggered by the ipfw code rejecting a locally generated
packet (e.g. you decide to make some network unreachable by local users)
ppp (or will be shortly). Natd can now be updated to use
this library rather than carrying its own version of the code.
Submitted by: Charles Mott <cmott@srv.net>
panic( "xxxxx\n" );
to:
printf( "xxxxx\n" );
panic( "\n" );
For some as yet undetermined reason the argument to panic() is often NOT
printed, and the system sometimes hangs before reaching the panic printout.
So we hopefully at least print some useful info before the hang, as oppossed to
leaving the user clueless as to what has happened.
bytes. Move p_hash to where it should have been all along, since we
change the layout anyway.
Recompile ps, top, libutil and all that.
Taked about with: bde
Remove "setdefs.h" and arrange to generate it automatically at
ELF kernel build time.
"gensetdefs.c" is a utility which scans a set of ELF object files
and outputs a line ``DEFINE_SET(name, length);'' for each linker
set that it finds. When generating an ELF kernel, this is run just
before the final link to generate "setdefs.h".
Remove the init_sets() function from "setdef0.c", and its call from
"machdep.c". Since "gensetdefs.c" calculates the length of each
set, it is no longer necessary in an ELF kernel to count the set
elements at kernel initialization time. Also remove "set_of_sets"
which was used for this purpose.
Link "setdef0" and "setdef1" into the kernel only if building for
ELF. Since init_sets() is no longer used, there is no need to link
them into an a.out kernel.
all uses of it with the equivalent calls to setbits().
This change incidentally eliminates a problem building ELF kernels
that was caused by SETBITS.
Reviewed by: fsmp, peter
Submitted by: bde
PR: kern/3629: /sys/scsi/pt.c doesn't...
Submitted by: simokawa@sat.t.u-tokyo.ac.jp (Hidetoshi Shimokawa)
Add a catch-all record for removable SCSI devices to default them to
only one LUN.
PR: kern/3580: Bad LUN probes on Xyratex...
1) Adjust NFRAMES from 16 to 8 per 16k of memory.
2) Acknowledge interrupts to the card early in the interrupt
handler before processing the event that caused the interrupt.
This frees the card to process addtional events instead of
waiting for the driver to finish handling events.
3) Changed the initialization of the transmit buffers to be a
loop so that the number of buffers can be more easily changed.
4) Moved the code to take the adapter out of loop back mode to just
before we enable the receiver.
I also made the driver dynamically size its resource arrays at attach
time so that we can take full advantage of adapters with more than 16k
of memory.
Richard has some other changes he's working on to improve performance,
but this should get ee16 support working reliably again.
Thanks to Wes Santee <wes@bogon.net> for testing these patches.
Submitted by: Richard Straka <straka@user1.inficad.com>
the man page or the source file. Fix this.
Minor problem: don't choke with ENETDOWN early. As long as our output
queue has space, put the IP packets there even if IPCP ain't up yet.
We will eventually be able delivering them once the PPP state machine
came up.
full implementation of the sate machine as described in RFC1661, and
provides support for plugging in various control protocols. I needed
this to provide PPP support for the BISDN project (right now).
Unfortunatley, while the existing API was almost up to the point, i
needed one minor API change in order to decouple the this-layer-
started and this-layer-finished actions from the respective Up and
Down events of the lower layer. This requires two additional lines in
the attach routines of all existing lower layer interface drivers that
are using syncPPP (shortcutting these actions and events). Apart from
this, i believe i didn't change the API of all this, so everything
should plug in without too many hassles. Please report if i broke
something in the existing drivers.
For a list of features (including new ones like dial-on-demand), and
things still to be done, please refer to the man page i'll commit asap.
Encouraged by: Serge Vakulenko <vak@cronyx.ru>
- remove all calls to scsi_stop_unit(). Some drives refuse commands when
stopped. This will fix the 'device not configured' message which was
cleared after opening/closing the tray.
- Never set the logical block address in the scsi_cmd struct when writing.
The computation was bogus for block sizes not a multiple of DEV_BSIZE.
(the bug is still there in the READ case)
- reset the block size to the 2048 bytes in finalize_track() track to avoid
an error when mounting a disk after an audio write.
- remove the WORMIOCQUIRKSELECT ioctl. Quirks are now recorded at probe time
(see scsiconf.c)
- change and expand the argument to the WORMIOCPREPTRACK ioctl. It now possible
to select more track options (copy bits, ISRC codes, track type,
track number)
- add an error handler to catch false errors (warnings in fact) and record
the error type.
- add an ioctl call (WORMIOERROR) to get more information on the nature of the
error when a command or a write failed.
- add an ioctl call (WORMIOCFINISHTRACK) to finalize a track without closing
the device (closing the device still finalize the track if the command was
not performed)
Approved by: joerg
and b_validend. The changes to vfs_bio.c are a bit ugly but hopefully
can be tidied up later by a slight redesign.
PR: kern/2573, kern/2754, kern/3046 (possibly)
Reviewed by: dyson
in_setsockaddr and in_setpeeraddr.
Handle the case where the socket was disconnected before the network
interrupts were disabled.
Reviewed by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
- gcc assumes that %ecx and %edx are clobbered (due to calling
conventions), thus there is no need for saving/restoring those two
registers.
- %es is reset to default value by real_to_prot, thus there is no need
for saving/restorig that register.
Submitted by: tegge
