functions for register pretty-printing.
Only clear SELDO once we've recorded enough information for
the host to understand that the connection is valid. The
host uses the SELDO status as a handshake to close this
race window.
Correct a bug in target mode handling of non-disconnected
transactions. The host would indicate the correct SCB to
DMA by setting the SCB id in the currently selected hardware
SCB. Unfortunately, we would then immediated allocate a
hardware SCB which, depending on the access patern might not
be the same hardware SCB that the host setup for us. Avoid
this by having the host put the SCBID into scratch ram.
Document the SXFRCTL2 register found on U2 and U160 controllers.
Overload the MWI_RESIDUAL field for use as the SCB to be downloaded
for "immediate" (or those without the disconnect privledge)
transactions.
Add scratch ram locations for the 274X that give us a bit more
information including whether to enable extended translation.
value slipped in from a debugging session.
Add AHC_LSCBS_ENABLED and AHC_SCB_CONFIG_USED ahc_flags which
allow for some code to move to the core.
Remove extern for ahc_syncrates[]. The OSMs no longer need
direct access to this array.
Add serial eeprom field to the ahc softc.
Prototype ahc_search_untagged_queues() and ahc_print_register().
Convert to AHC_SHOW_XXX debug option format.
Switch to using the same AHC_SHOW_XXX format as the ahd driver.
Always give the target a MSG_INITIATOR_DET_ERR for unexpected
DT or ST phase errors.
Add AHC_SHOW_SELTO diagnostics.
Force renegotiation whenever an unexpected bus free occurs
to rule out a negotiation mismatch as the cause for the error.
Use "offset != 0" as an intenal indicator of "async" rather than
using a period of 0.
In ahc_fetch_devinfo(), correct a bug in getting "our id" as
target. We weren't looking at all the SEQ_FLAGS that indicate
that we are still in a selected rather than reselected state.
Add support for the AHC_SHOW_MESSAGES debugging option.
If ahc_parse_msg() tells us to terminate the message loop,
do so without acking the message. The message may be one
that the sequencer needs to handle on its own.
In ahc_parse_msg() return MSGLOOP_TERMINATED for all messages
the sequencer handles.
Allocate storage for, and track, seeprom contents in our softc.
Touch all SCB bytes to avoid parity errors should one of our
debugging routines read an otherwise uninitiatlized byte.
S/G lists must be 8 byte aligned. Reflect this in our DMA tag.
"the the" -> "the" in a comment
When pausing the card to perform error recovery, ensure that we
are not in the process of being selected or have just been selected
but have not yet handled that selection. This leaves only one other
race window, in the command complete handler, that needs to be fixed
to make recovery 100% bullet proof.
Convert a few straglers from bsd u_intX_t to inttypes uintX_t.
Remove unused variables.
Split out searching of the untagged holding queues to its own
routine. In certain recovery scenarios, we want to just
remove entries in the untagged queue without touching related
transactions that are in the QINFIFO or WAITING queues that are
searched by ahc_search_qinfifo().
Add an implementation of the ahc_print_register() routine which
"pretty prints" registers. The extra bloat in the form of string
tables for this feature is controlled by the AHC_REG_PRETTY_PRINT
option.
Fix a few bugs in ahc_enable_lun() that could prevent controllers
lacking the multiple-target-id feature from changing "our id" on
the fly. Add a large comment to this section while I'm here
describing the restrictions on "id switching".
Honor the extended translation setting for EISA cards now that
I've determined where this information is kept.
Defer card interrupt enabling to the OSM since it may have
some initialization to perform that must occur before interrupts
can be enabled.
Don't attempt to follow null pointers for zombie processes in db_ps().
Style fix: use explicit an comparison with NULL for all null pointer
checks in db_ps() instead of for half of them.
db_interface.c:
Fixed ddb's handling of traps from with ddb on i386's only.
This was mostly fixed in rev.1.27 (by longjmp()'ing back to the top
level) but was completly broken in rev.1.48 (by not unwinding the new
state (mainly db_active) either before or after the longjmp(). This
mostly never worked for other arches, since rev.1.27 has not been ported
and lower level longjmp()'s only handle traps for memory accesses. All
cases should be handled at a lower level to provided better control and
simplify unwinding of state.
Implementation details: don't pretend to maintain db_active in a nested
way -- ddb cannot be reentered in a nested way. Use db_active instead
of the db_global_jmpbuf_valid flag and longjmp()'s return value for things
related to reentering ddb. [re]entering is still not atomic enough.
very pervasive in this code. This fixes a few of those assumptions and
band-aids over some others.
Tested on: ia32 alpha sparc64
Reviewed by: peter jake (in concept)
.In string.h
with
.In strings.h
and adding a sentence to the HISTORY section.
- Use an ANSI-C function definition.
- Include <strings.h> instead of <string.h>.
- Apply style(9): Put a space after return keywords.
in the ANSI-C format.
- Change the code a bit to hopefully save some cycles.
I.e. (simplified) change
a = b + 1;
while (--b & 0x7)
/* ... */
to
a = b;
for (; b & 0x7; b--)
/* ... */
and
while (--a >= 0)
/* ... */
to
for (; a > 0; a--)
/* ... */
- Equip two function arguments of swab() with the 'restrict'
type qualifier in form of the '__restrict' macro. This is
specified by POSIX.1-2001.
<strings.h> as the associated header file.
The prototypes have been moved there from <string.h> because
POSIX.1-2001 said so.
- Conditionally include either <strings.h> or <string.h> based
on whether the [r]index() or str[r]chr() functions are
compiled, respectively.
- Style(9) tells us to
- put a space after the return keyword
- to check for a NUL character without using the ! operator.
- use NULL instead of (type *)NULL where the compiler knows
the type.
Apply these rules.
- Rather use ANSI-C function definitions than K&R ones.
- For index(3), correct second function argument's type; it was
declared to be a `const char' before and is now an `int'.
is <strings.h> and not <string.h> anymore.
- Tell the reader about this change in the HISTORY section.
- Switch to use an ANSI-C function definition.
- Include <strings.h> instead of <string.h> in the source file.
compat code. Clean up accounting for multiple segments. Part 1/2.
Submitted by: Andrey Alekseyev <uitm@zenon.net> (with some modifications)
MFC after: 3 days
the prototypes for both functions are now in the <strings.h>
header, as required by IEEE Std 1003.1-2001.
- Add one sentence about that in the HISTORY section.
- Include <strings.h> in the source file to have the prototypes
in scope when the _ANSI_SOURCE macro is defined.
At the front is btxldr, in the middle is BTX itself (our mini-kernel), and
then the 'client' (loader.bin) which is the actual loader itself. boot2
just executes a raw ELF or a.out binary with the only setup provided being
that a bootinfo structure is passed on the stack. Now, since loader.bin
is a BTX client, the loader needs to be able to locate a BTX kernel for
the client to execute in the context. Thus, just like pxelder, btxldr
uses the a.out header on the loader binary to find the BTX kernel stored
in the loader and set it up. It does _not_ just reuse the BTX kernel
that boot2 invoked it with. This is because it can't assume that it will
_have_ a "spare" BTX kernel lying around. For example, when cdboot
loads the loader there isn't an existing BTX kernel. In fact, cdboot
will only work with an a.out loader as well since it also "borrows" the
BTX kernel in the loader binary (which it finds by parsing the a.out
header) just as pxeldr does. The only difference between cdboot and
pxeldr is where they get /boot/loader from.
If we wanted to make /boot/loader be an actual ELF binary we would need
to change the following utilites to handle that (and they all have to be
able to handle locating the BTX kernel inside of an ELF binary somehow):
- btxldr
- pxeldr
- cdboot
If we didn't want to require a flag day but make the transition smooth
then we need to be able to support both a.out and ELF versions of
/boot/loader which isn't exactly trivial since all three of these utilities
are written in assembly.
Pointy-hat to: peter
Fix device hints entry for disabling acpi(4).
This also should fix the arbitration with apm(4) when both drivers
are enabled.
Note that your /boot/device.hints needs to be updated if you want to
stop auto-loading acpi.ko or disable acpi(4).
This will replace the existing getextattr(8) and setextattr(8) with
a single binary responding to the names getextattr, setextattr,
rmextattr and lsextattr.
This program is not yet connected to the build.
Sponsored by: DARPA and NAI Labs.
attach. If it can't get that (highly likely if loaded as a module on
a system that's been up for a while), give a more descriptive error
message.
Also clean up some nearby style nits.
MFC after: 2 days
