(Much of this done by script)
Move B_ORDERED flag to b_ioflags and call it BIO_ORDERED.
Move b_pblkno and b_iodone_chain to struct bio while we transition, they
will be obsoleted once bio structs chain/stack.
Add bio_queue field for struct bio aware disksort.
Address a lot of stylistic issues brought up by bde.
fe_read_eeprom_rex() and fe_init_rex(). These functions should be
useful for REX-5580 series (for PC-AT). But they are included in
`#ifdef PC98' to avoid warnings by unused static functions. If you
try to support REX-5580, please be aware of these functions.
Submitted by: chi@bd.mbn.or.jp (Chiharu Shibata)
removed unncessary MPLOCKED and 'lock' prefixes from the interrupt
nesting level, since (A) the MP lock is held at the time, and (B) since
the neting level is restored prior to return any interrupted code
will see a consistent value.
includes one of bus_at386.h and bus_pc98.h. Becuase only bus_pc98.h
supports indirect pio and bus_at386.h is identical to old bus.h, there
is no functional change in PC-AT's kernels. That is, it cannot cause
performance loss.
Submitted by: nyan
Reviewed by: imp
bde and luoqi provided useful comments for earlier version.
syscall path inward. A system call may select whether it needs the MP
lock or not (the default being that it does need it).
A great deal of conditional SMP code for various deadended experiments
has been removed. 'cil' and 'cml' have been removed entirely, and the
locking around the cpl has been removed. The conditional
separately-locked fast-interrupt code has been removed, meaning that
interrupts must hold the CPL now (but they pretty much had to anyway).
Another reason for doing this is that the original separate-lock for
interrupts just doesn't apply to the interrupt thread mechanism being
contemplated.
Modifications to the cpl may now ONLY occur while holding the MP
lock. For example, if an otherwise MP safe syscall needs to mess with
the cpl, it must hold the MP lock for the duration and must (as usual)
save/restore the cpl in a nested fashion.
This is precursor work for the real meat coming later: avoiding having
to hold the MP lock for common syscalls and I/O's and interrupt threads.
It is expected that the spl mechanisms and new interrupt threading
mechanisms will be able to run in tandem, allowing a slow piecemeal
transition to occur.
This patch should result in a moderate performance improvement due to
the considerable amount of code that has been removed from the critical
path, especially the simplification of the spl*() calls. The real
performance gains will come later.
Approved by: jkh
Reviewed by: current, bde (exception.s)
Some work taken from: luoqi's patch
not introduce (hopefully) any functional changes but gets rid of
the #ifdef spaghetti pcvt suffered from more and more over the
years.
Several no more used parts of the source were removed, others
which are used by default are now non-optional components:
PCVT_NETBSD removed completety
PCVT_FREEBSD removed option, code is now standard
PCVT_KBD_FIFO removed option, code is now standard
PCVT_EMU_MOUSE removed completety
PCVT_SW0CNOUTP removed completety
PCVT_PORTIO_DELAY obsolete, removed
PCVT_KEYBDID removed option, code is now standard
PCVT_SIGWINCH removed option, code is now standard
PCVT_PALFLICKER removed completety
PCVT_WAITRETRACE removed completety
PCVT_NOFASTSCROLL removed option, code is now standard
PCVT_USL_VT_COMPAT removed the "old" non-vt Xserver code completely,
depending on XSERVER, this code is now standard.
Pcvt userland cleanup will follow as well as newbusifying the
kernel part.
Make the public interface more systematically named.
Remove the alternate method, it doesn't do any good, only ruins performance.
Add counters to profile the usage of the 8 access functions.
Apply the beer-ware to my code.
The weird +/- counts are caused by two repocopies behind the scenes:
kern/kern_clock.c -> kern/kern_tc.c
sys/time.h -> sys/timetc.h
(thanks peter!)
field in struct buf: b_iocmd. The b_iocmd is enforced to have
exactly one bit set.
B_WRITE was bogusly defined as zero giving rise to obvious coding
mistakes.
Also eliminate the redundant struct buf flag B_CALL, it can just
as efficiently be done by comparing b_iodone to NULL.
Should you get a panic or drop into the debugger, complaining about
"b_iocmd", don't continue. It is likely to write on your disk
where it should have been reading.
This change is a step in the direction towards a stackable BIO capability.
A lot of this patch were machine generated (Thanks to style(9) compliance!)
Vinum users: Greg has not had time to test this yet, be careful.
it's options COMPAT_OLDISA and COMPAT_OLDPCI. This is meant to be a
fairly strong incentive to update the older drivers to newbus, but doesn't
(quite) leave anybody hanging with no hardware support. I was talking with
a few folks and I was encouraged to simply break or disable the shims but
that was a bit too drastic for my liking.
prevent a page fault if the card is ejected while BPF is in use. This
could happen if DHCP or tcpdump was in use on that interface during
ejection. Other drivers may also require this modification.
Reviewed by: wes
new-bus Olicom driver, previously known as "ol". The new
driver unfortunately does not support ISA cards yet.
o Update the microcode files, interface library and include files
to the latest PowerMACH works version. Force even byte alignment
of adapter microcode.
o Roll in some of the patches from Nikolai Saoukh <nms@ethereal.ru>.
- Properly keep track of resources (I/O ports and irq).
- Use bus_space_read/write() to access the ports.
- Add PnP IDs.
- Add a watchdog timer in case interrupts are lost (experimental).
- Add `detach' function (experimental).
fixes some namespace pollution in general and breakage of modules that
aren't in the sys tree in particular (<machine/ipl.h> includes further
headers that aren't installed under /usr/include).
Reimplemented SPLASSERT() so that it is more machine independent and
less bloated and doesn't require the <machine/ipl.h> include spam.
In particular, don't assume that `cpl' can be printed using %08x
format. The alpha arch doesn't even have `cpl'. SPLASSERT() was
harmless on alphas because it isn't actually used.
chipset to be probed & attached on newer Dell PowerEdge servers, such as
the 2400 and 4400.
Reviewed by: dfr, msmith, jlemon
Tested by: hnokubi@yyy.or.jp (in a previous incantation)
Approved by: jkh
Also update wicontrol to enable/disable encryption, set WEP keys and set the
TX key index. Silver cards only have 40-bit keys. This is something of a quick
hack, but it works well enough for me to commit this from the LinuxWorld
exhibit floor.
The WEP support only shows up if you have a card that supports it.
Would have been approved by: jkh, if he hadn't wandered off somewhere
Approved in his place by: msmith, who's standing right here
be safe enough to recommend for working around the problem with CHS mode
normally being limited to 65536*16*63 sectors.
Fixed bitrot in related debugging code.
Fixed related style bugs.
Removed another vestige of bad144 support.
actually used it since the only device that specified it (vga0) was marked
as "FLG_INVISIBLE" in userconfig and therefore never shown.
Suggested by: bde
are using an old unconverted driver. Most (if not all) of the drivers
for common hardware are newbus these days. However, we don't want
to encourage people to take the easy way out and write new drivers
using the shims. This is just passive "encouragement".
Reviewed by: phk
subr_diskmbr.c:
Don't "helpfully" enlarge our idea of the disk size to cover all the
primary slices. Instead, truncate or discard slices that don't seem
to be on the disk. The enlargement was a hack for disks that don't
report their size (e.g., MFM disks). It is just wrong in general.
wd.c:
In CHS mode, limit the disk size so that cylinder numbers >= 65536
cannot occur. This normally only affects disks larger than 33.8GB.
CHS mode accesses to addresses above the limit are now properly broken
(an error is returned instead of garbage for reads and disk corruption
for writes).
PR: 15611
Reviewed by: readers of freebsd-bugs did not respond to a request
for review
same object file (atapi-cd.o) as the ata drivers. I'd have called it
wcd.[ch], but there's already one of those in the Attic that we can't
clobber - the good names are taken.
Fix building so that it can be compiled into LINT alongside ata.
Requested by: bde
