because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.
Define __offsetof() in <machine/ansi.h>
Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>
Remove myriad of local offsetof() definitions.
Remove includes of <stddef.h> in kernel code.
NB: Kernelcode should *never* include from /usr/include !
Make <sys/queue.h> include <machine/ansi.h> to avoid polluting the API.
Deprecate <struct.h> with a warning. The warning turns into an error on
01-12-2000 and the file gets removed entirely on 01-01-2001.
Paritials reviews by: various.
Significant brucifications by: bde
to reinstall boot1 after a 'make world'.
Unfortunately this means that people who have already installed a new
boot1 from a 'make world' after 2000/09/18 *must* reinstall it after
their next build using something like:
# disklabel -B /dev/da0c
of IP datagram. This fixes the problem when firewall denied fragmented
packets whose last fragment was less than minimum protocol header size.
Found by: Harti Brandt <brandt@fokus.gmd.de>
PR: kern/22309
it can function before malloc(9) is up and running.
- Add two new options WITNESS_DDB and WITNESS_SKIPSPIN. If WITNESS_SKIPSPIN
is enabled, then spin mutexes are ignored by the WITNESS code. If
WITNESS_DDB is turned on and DDB is compiled into the kernel, then the
kernel will drop into DDB when either a lock hierarchy violation occurs
or mutexes are held when going to sleep.
- Add some new sysctls:
debug.witness_ddb is a read-write sysctl that corresponds to WITNESS_DDB.
The kernel option merely changes the default value to on at boot.
debug.witness_skipspin is a read-only sysctl that one can use to determine
if the kernel was compiled with WITNESS_SKIPSPIN.
- Wipe out the BSD/OS-specific lock order lists. We get to build our own
lists now as we add mutexes to the kernel.
the PCI latency timer value to 0x80. Davicom's Linux driver does this,
and it drastically reduces the number of TX underruns in my tests. (Note:
this is done only for the Davicom chips. I'm not sure it's a good idea to
do it for all of them.)
Again, still waiting on confirmation before merging to stable.
change_ruid() in kern_prot.c. This fixes an incorrect use
of chgproccnt().
Update both osf1_setuid() and osf1_setgid() to use setsugid() instead
of just frobbing the flag.
(mostly) submitted by: truckman
in the code enforces this. So, do not check for and attempt a
false reassembly if only IP_RF is set.
Also, removed the dead code, since we no longer use dtom() on
return from ip_reass().
DM9100/DM9102 chips. Do not set DC_TX_ONE. The DC_TX_USE_TX_INTR flag
causes dc_encap() to set the 'interrupt on TX completion' bit only
once every 64 packets. This is an attempt to reduce the number
of interrupts generated by the chip. You're supposed to get a 'no more
TX buffers left' interrupt once you hit the last packet whether you
ask for one or not, however it seems the Davicom chip doesn't generate
this interrupt, or at least it doesn't generate it under the same
circumstances. The result is that if you transmit n packets, where
n is less than 64, and then wait 5 seconds, you'll get a watchdog
timeout whether you want one or not. The DC_TX_INTR_ALWAYS causes
dc_encap() to request an interrupt for every frame.
I'm still waiting on confirmation from a couple of users to see if this
fixes their problems with the Davicom DM9102 before I merge this into
-stable, but this fixed the problem for me in my own testing so I'm
willing to make the change to -current right away.
expands beyond the limit we will extend the address space before trying
to zero the BSS. This should give us plenty of headroom for modest
expansion of the loader.
- Change the softintr() macro to do nothing on FreeBSD. Previously,
this macro would set a bit in spending and schedule the softinterrupt
thread to run. However, the bs driver never actually registers a
a software interrupt handler, so all this work achieved nothing. From
the code it is not clear what exactly the softintr() macro is actually
supposed to be doing. It looks like it is supposed to be possibly
running the hardware interrupt handler maybe? This handler is only
present in the #ifdef __NetBSD__ code however. I have no idea how this
driver handles interrupts at all, but at least it compiles now.
- Layout reorganisation to enhance portability. The driver now has
a relatively MI 'core' and a FreeBSD-specific layer over the top.
Since the NetBSD people have already done their own port, this is
largely just to help me with the BSD/OS port.
- Request ID allocation changed to improve performance (I'd been
considering switching to this approach after having failed to come
up with a better way to dynamically allocate request IDs, and seeing
Andy Doran use it in the NetBSD port of the driver convinced me
that I was wasting my time doing it any other way). Now we just
allocate all the requests up front.
- Maximum request count bumped back to 255 after characterisation
of a firmware issue (off-by-one causing it to crash with 256
outstanding commands).
- Control interface implemented. This allows 3ware's '3dm' utility to
talk to the controller. 3dm will be available from 3ware shortly.
- Controller soft-reset feature added; if the controller signals a
firmware or protocol error, the controller will be reset and all
outstanding commands will be retried.
type of software interrupt. Roughly, what used to be a bit in spending
now maps to a swi thread. Each thread can have multiple handlers, just
like a hardware interrupt thread.
- Instead of using a bitmask of pending interrupts, we schedule the specific
software interrupt thread to run, so spending, NSWI, and the shandlers
array are no longer needed. We can now have an arbitrary number of
software interrupt threads. When you register a software interrupt
thread via sinthand_add(), you get back a struct intrhand that you pass
to sched_swi() when you wish to schedule your swi thread to run.
- Convert the name of 'struct intrec' to 'struct intrhand' as it is a bit
more intuitive. Also, prefix all the members of struct intrhand with
'ih_'.
- Make swi_net() a MI function since there is now no point in it being
MD.
Submitted by: cp
- Close a small race condition. The sched_lock mutex protects
p->p_stat as well as the run queues. Another CPU could change p_stat
of the process while we are waiting for the lock, and we would end up
scheduling a process that isn't runnable.
usb_ethersubr.c. This module maintains two queues for packets which
are each protected with one mutex. These are all the changes I can
do for now. Removing the USBD_NO_TSLEEP flag doesn't work yet: when
I tried it, the system would usually freeze up after a NIC had been
operating for a while. The usb_ethersubr module itself ought to
go away; this is the next thing I need to test.
* Fixes to the signal delivery code. Not quite right yet.
I would have preferred to wait until I have signal delivery actually
working but the current kernel in CVS doesn't build.
mail:
The problem seems to originate with NFS's postop_attr
information that is returned with a read or write RPC.
Within a vm_fault context, the code cannot deal with
vnode_pager_setsize() shrinking a vnode.
The workaround in the patch below stops the nfsm_postop_attr()
macro from ever shrinking a vnode. If the new size in the
postop_attr information is smaller, then it just sets the
nfsnode n_attrstamp to 0 to stop the wrong size getting
used in the future. This change only affects postop_attr
attributes; the nfsm_loadattr() macro works as normal.
The change is implemented by adding a new argument to
nfs_loadattrcache() called 'dontshrink'. When this is
non-zero, nfs_loadattrcache() will never reduce the
vnode/nfsnode size; instead it zeros n_attrstamp.
There remain other was processes can get stuck in vmopar.
Submitted by: Ian Dowse <iedowse@maths.tcd.ie>
Reviewed by: dillon
Tested by: Vadim Belman <voland@lflat.org>
more include file including <sys/proc.h>, but there still is this wonky
and (causes warnings on i386) reference in globals.h.
CURTHD is now defined in <machine/globals.h> as well. The correct thing
to do is provide a platform function for this.
will compile again. I can't quite see where this was a recursive inclusion.
We probably need to do something to fix the alpha, but let's not break it
in the interim- it's broken enough.
(a NetBSD port for NEC PC-98x1 machines). They are ncv for NCR 53C500,
nsp for Workbit Ninja SCSI-3, and stg for TMC 18C30 and 18C50.
I thank NetBSD/pc98 and bsd-nomads people.
Obtained from: NetBSD/pc98
in add_m6fc(), set interface list for all cases.
in response to a report from Hoerdt Mickael.
kame 1.31 -> 1.32
discard PIM register if the version of the inner packet is incorrect (i.e. IPv6)
(according to clarfication of recent discussion in the IETF pim ML)
Have if_ti stop "hiding" the softc pointer in the buffer region. Rather,
use the available void * passed to the free routine and pass the softc
pointer through there.
To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it
unchanged, because this way I'm sure to not damage anything in this respect...
Instead of:
foo = malloc(sizeof(foo), M_WAIT);
bzero(foo, sizeof(foo));
You can now (and please do) use:
foo = malloc(sizeof(foo), M_WAIT | M_ZERO);
In the future this will enable us to do idle-time pre-zeroing of
malloc-space.
reducues the maintenance load for the mutex code. The only MD portions
of the mutex code are in machine/mutex.h now, which include the assembly
macros for handling mutexes as well as optionally overriding the mutex
micro-operations. For example, we use optimized micro-ops on the x86
platform #ifndef I386_CPU.
- Change the behavior of the SMP_DEBUG kernel option. In the new code,
mtx_assert() only depends on INVARIANTS, allowing other kernel developers
to have working mutex assertiions without having to include all of the
mutex debugging code. The SMP_DEBUG kernel option has been renamed to
MUTEX_DEBUG and now just controls extra mutex debugging code.
- Abolish the ugly mtx_f hack. Instead, we dynamically allocate
seperate mtx_debug structures on the fly in mtx_init, except for mutexes
that are initiated very early in the boot process. These mutexes
are declared using a special MUTEX_DECLARE() macro, and use a new
flag MTX_COLD when calling mtx_init. This is still somewhat hackish,
but it is less evil than the mtx_f filler struct, and the mtx struct is
now the same size with and without mutex debugging code.
- Add some micro-micro-operation macros for doing the actual atomic
operations on the mutex mtx_lock field to make it easier for other archs
to override/optimize mutex ops if needed. These new tiny ops also clean
up the code in some places by replacing long atomic operation function
calls that spanned 2-3 lines with a short 1-line macro call.
- Don't call mi_switch() from mtx_enter_hard() when we block while trying
to obtain a sleep mutex. Calling mi_switch() would bogusly release
Giant before switching to the next process. Instead, inline most of the
code from mi_switch() in the mtx_enter_hard() function. Note that when
we finally kill Giant we can back this out and go back to calling
mi_switch().
in most of the atomic operations. Now for these operations, you can
use the normal atomic operation, you can use the operation with a read
barrier, or you can use the operation with a write barrier. The function
names follow the same semantics used in the ia64 instruction set. An
atomic operation with a read barrier has the extra suffix 'acq', due to
it having "acquire" semantics. An atomic operation with a write barrier
has the extra suffix 'rel'. These suffixes are inserted between the
name of the operation to perform and the typename. For example, the
atomic_add_int() function now has 3 variants:
- atomic_add_int() - this is the same as the previous function
- atomic_add_acq_int() - this function combines the add operation with a
read memory barrier
- atomic_add_rel_int() - this function combines the add operation with a
write memory barrier
- Add 'ptr' to the list of types that we can perform atomic operations
on. This allows one to do atomic operations on uintptr_t's. This is
useful in the mutex code, for example, because the actual mutex lock is
a pointer.
- Add two new operations for doing loads and stores with memory barriers.
The new load operations use a read barrier before the load, and the
new store operations use a write barrier after the load. For example,
atomic_load_acq_int() will atomically load an integer as well as
enforcing a read barrier.
length of the data properly. This should be moved into a tty_subr
function.
Also, disanle the setting of the CDC_CM_OVER_DATA flag. It breaks some
modems. I don't think that ther actually is a modem that needs this.
Submitted by: Brad Karp <bkarp@ICSI.Berkeley.EDU>
statistics on a per network address basis.
Teach the IPv4 and IPv6 input/output routines to log packets/bytes
against the network address connected to the flow.
Teach netstat to display the per-address stats for IP protocols
when 'netstat -i' is evoked, instead of displaying the per-interface
stats.
o Change name of bus
o Change the panic on resource allocation failure to just a message. We'll
work out why this fails later in the pcic/pccbb code merge.
This commit adds support for Xircom X3201 based cardbus cards.
Support for the TDK 78Q2120 MII is also added.
IBM Etherjet, Intel and Xircom cards uses these chips.
Note that as a result of this commit, some Intel/DEC 21143 based cardbus
cards will also attach, but not get link. That is being looked at.
"administrative" authorization checks. In most cases, the VADMIN test
checks to make sure the credential effective uid is the same as the file
owner.
o Modify vaccess() to set VADMIN as an available right if the uid is
appropriate.
o Modify references to uid-based access control operations such that they
now always invoke VOP_ACCESS() instead of using hard-coded policy checks.
o This allows alternative UFS policies to be implemented by replacing only
ufs_access() (such as mandatory system policies).
o VOP_ACCESS() requires the caller to hold an exclusive vnode lock on the
vnode: I believe that new invocations of VOP_ACCESS() are always called
with the lock held.
o Some direct checks of the uid remain, largely associated with the QUOTA
and SUIDDIR code.
Reviewed by: eivind
Obtained from: TrustedBSD Project
Fixes bugs in devfs when unloading and reloading
Syncs with NetBSD changes
Submitted by: Alexander Langer <alex@big.endian.de>
Submitted by: Thomas Klausner <wiz@netbsd.org>
Submitted by: Daniel O'Connor" <doconnor@gsoft.com.au>
priority "0" and without PCATCH, so it was uninterruptable. And
even when it did wake up after entropy arrived, it exited after the
wakeup without actually reading the freshly arrived entropy. I
sent this to Mark before but it seems he is in transit.
Mark: feel free to replace this if it gets in your way.
implementation.
Add bus_generic_rl_{get,set,delete,release,alloc}_resource() functions
which provide generic operations for devices using resource list style
resource management.
This should simplify a number of bus drivers. Further commits to follow.
Files:
dev/cardbus/cardbus.c
dev/cardbus/cardbusreg.h
dev/cardbus/cardbusvar.h
dev/cardbus/cardbus_cis.c
dev/cardbus/cardbus_cis.h
dev/pccbb/pccbb.c
dev/pccbb/pccbbreg.h
dev/pccbb/pccbbvar.h
dev/pccbb/pccbb_if.m
This should support:
- cardbus controllers:
* TI 113X
* TI 12XX
* TI 14XX
* Ricoh 47X
* Ricoh 46X
* ToPIC 95
* ToPIC 97
* ToPIC 100
* Cirrus Logic CLPD683x
- cardbus cards
* 3c575BT
* 3c575CT
* Xircom X3201 (includes IBM, Xircom and, Intel cards)
[ 3com support already in kernel, Xircom will be committed real soon now]
This doesn't work with 16bit pccards under NEWCARD.
Enable in your config by having "device pccbb" and "device cardbus".
(A "device pccard" will attach a pccard bus, but it means you system have
a high chance of panicing when a 16bit card is inserted)
It should be fairly simple to make a driver attach to cardbus under
NEWCARD -- simply add an entry for attaching to cardbus on a new
DRIVER_MODULE and add new device IDs as necessary. You should also make
sure the card can be detached nicely without the interrupt routine doing
something weird, like going into an infinite loop. Usually that should
entail adding an additional check when a pci register or the bus space is
read to check if it equals 0xffffffff.
Any problems, please let me know.
Reviewed by: imp
Files:
dev/cardbus/cardbus.c
dev/cardbus/cardbusreg.h
dev/cardbus/cardbusvar.h
dev/cardbus/cardbus_cis.c
dev/cardbus/cardbus_cis.h
dev/pccbb/pccbb.c
dev/pccbb/pccbbreg.h
dev/pccbb/pccbbvar.h
dev/pccbb/pccbb_if.m
This should support:
- cardbus controllers:
* TI 113X
* TI 12XX
* TI 14XX
* Ricoh 47X
* Ricoh 46X
* ToPIC 95
* ToPIC 97
* ToPIC 100
* Cirrus Logic CLPD683x
- cardbus cards
* 3c575BT
* 3c575CT
* Xircom X3201 (includes IBM, Xircom and, Intel cards)
[ 3com support already in kernel, Xircom will be committed real soon now]
This doesn't work with 16bit pccards under NEWCARD.
Enable in your config by having "device pccbb" and "device cardbus".
(A "device pccard" will attach a pccard bus, but it means you system have
a high chance of panicing when a 16bit card is inserted)
It should be fairly simple to make a driver attach to cardbus under
NEWCARD -- simply add an entry for attaching to cardbus on a new
DRIVER_MODULE and add new device IDs as necessary. You should also make
sure the card can be detached nicely without the interrupt routine doing
something weird, like going into an infinite loop. Usually that should
entail adding an additional check when a pci register or the bus space is
read to check if it equals 0xffffffff.
Any problems, please let me know.
Reviewed by: imp
o Report function number and config index on probe line
o Activate the resources (I hope) when RF_ACTIVE is set on those resources
I'm allocating on behalf of my children.
o Always enable interrupts on multifunction cards in the multifunction
register.
This was implemented by Shigeru YAMAMOTO-san and Jonathan Chen. I've
cleaned them up somewhat and they seem to work well enough to boot
current (but given current's state it can be hard to tell). Doug
Rabson also reviewed the design and signed off on it.
compile time will build in mutex locks, otherwise the old locking (splcam/splx
with a recursion counter) will be compiled in.
We still depend on config_intr_hook to tell us when it's okay to call
msleep instead of polling. It'd be real nice if we could do this early
enough to not hang up a machine struggling with a bad Fibre Channel loop,
but that's still to come.
write caching is disabled on both SCSI and IDE disks where large
memory dumps could take up to an hour to complete.
Taking an i386 scsi based system with 512MB of ram and timing (in
seconds) how long it took to complete a dump, the following results
were obtained:
Before: After:
WCE TIME WCE TIME
------------------ ------------------
1 141.820972 1 15.600111
0 797.265072 0 65.480465
Obtained from: Yahoo!
Reviewed by: peter
o Remember the resources we allocate for the config entry.
o When we get the resource, do an resource_list_add and do a
resource_list_delete if we fail later in the resource list.
o In the pccard bus, we allocate the resources. When a child asks for
them, just return the resources that we allocated (thanks to Paul
Richards and Mike Smith for the idea).
stacks near the top of their address space. If their TOS is greater
than vm_maxsaddr, vm_map_growstack() will confuse the thread stack
with the process stack and deliver a SEGV if they attempt to grow the
thread stack past their current stacksize rlimit. To avoid this,
adjust vm_maxsaddr upwards to reflect the current stacksize rlimit
rather than the maximum possible stacksize. It would be better to
adjust the mmap'ed region, but some apps (again, IBM's JDK 1.3) do not
check mmap's return value..
This commit (in conjunction with setting MINSIGSTKSZ to 2048 &
rebuilding your kernel and modules) will get IBM's JDK 1.3 working
with FreeBSD at least well enough to run many of the example applets.
Reviewed by: marcel
Tested by: sto@stat.duke.edu, many others on freebsd-java@
and associated user-level signal trampoline glue.
Without this patch, an SA_SIGINFO style handler can be installed by a linux
app, but if the handler accesses its sip argument, it will get a garbage
pointer and likely segfault.
We currently supply a valid pointer, but its contents are mainly
garbage. Filling this in properly is future work.
This is the second of 3 commits that will get IBM's JDK 1.3 working with
FreeBSD ...
rather than all the flags. This prevents setting being read from ROM,
which is a problem. If this breaks anything, it will only break the
3C556B cards minipci cards, which mainly exist at rpi as far as rpi
has been able to tell.
Submitted by: Louis Gerbarg <gerbal@rpi.edu>
loads, prints the copyright, and either hangs or locks solid. The
PC tends to be in the data segment and the RA is in XentMM
Doug really came up with the fix, I'm just the monkey typing. Doug says:
The alpha can only support 64k of globals with $gp pointing at
base+32k so that the code can use 16bit signed offsets from $gp to
access it. .... it is possible to have multiple .got subsections
and the linker handles this with the relocations for 'ldgp' pseudo
instructions. [Without this patch] the code in exception.s has been
linked to use a different gp from locore.s (where pal_kgp is set).
Reviewed by: dfr
#ifdef away the offending code until somebody with more newbus fu than
me can figure out where to put a default function that returns 255
without touching each alpha chipset driver..
kernel backing store.
* Implement syscalls via break instructions.
* Fix backing store copying in cpu_fork() so that the child gets the right
register values.
This thing is actually starting to work now. This set of changes takes me
up to the second execve (the one which runs the first shell). Next stop
single-user mode :-).
before the attach. Things aren't completely working, but this is a good
checkpoint.
Also, initialize the dev member of the function as soon as we add it
to the parent.
