are now in the header of the external buffer itself which allows us
to manipulate them in the free routine without having to lock the softc
structure or the free list. To get space for these flags the chunk number
is reduced to 8 bit which amounts to a maximum of 256 chunks per allocated
page. This restriction is now enforced by a CTASSERT.
structures come out the right size.
Fix the ones that broke. stat32 had some missing fields from the end
and statfs32 was broken due to the strange definition of MNAMELEN
(which is dependent on sizeof(long))
I'm not sure if this fixes any actual problems or not.
the module. Previously we grabbed the mutex used by the callouts,
then stopped the callout with callout_stop, but if the callout
was already active and blocked by the mutex then it would continue
later and reference the mutex after it was destroyed. Instead
stop the callout first then lock.
Supported by: FreeBSD Foundation
o add some more debugging help for figuring out why folks are
getting complaints about releasing routing table entries with
a zero refcnt
o fix comment that talked about spl's
o remove duplicate define of DUMMYNET_DEBUG
Supported by: FreeBSD Foundation
direct dispatch) to avoid extensive kernel stack usage and to
avoid directly re-entering the network stack. The latter causes
locking problems when, for example, a complete TCP handshake`
happens w/o a context switch.
clobbers this variable. Long ago, when the idle loop wasn't in a
process, it set switchtime.tv_sec to zero to indicate that the time
needs to be read after the idle loop finishes. The special case for
this isn't needed now that there is an idle process (for each CPU).
The time is read in the normal way when the idle process is switched
away from. The seconds component of the time is only zero for the
first second after the uptime is set, and the mostly-dead code was only
executed during this time. (This was slightly broken by using uptimes
instead of times relative to the Epoch -- in the original version the
seconds component of the time was only 0 for the first second after
the Epoch.)
In mi_switch(), moved the setting of switchticks to just after the
first (and now only) setting of switchtime. This setting used to be
delayed since a late setting was needed for the idle case and an early
setting was not needed. Now the early setting is needed so that
fork_exit() doesn't need to set either switchtime or switchticks.
Removed now-completely-rotted comment attached to this. Most of the
code described by the comment had already moved to sched_switch().
very first cell in the mbuf should have a cell header word (of which
everything except the payload type and the CLP bit is ignored). All
other cells should be 48 byte and get the same header as the first cell.
This fixes a problem with sending more than 120000 raw cells/sec through
an HE155. The card seems to need 2 cell times to DMA the transmit buffer
ready queue entry and the transmit buffer descriptor so at 1/3 the
link rate the transmit buffer ready queue starts to fill up. Even with this
patch it's obviously impossible to send raw cells at link rate.
- implement the tunnel egress rule in ip_ecn_egress() in ip_ecn.c.
make ip{,6}_ecn_egress() return integer to tell the caller that
this packet should be dropped.
- handle ECN at fragment reassembly in ip_input.c and frag6.c.
Obtained from: KAME
begin with sched_lock held but not recursed, so this variable was
always 0.
Removed fixup of sched_lock.mtx_recurse after context switches in
sched_switch(). Context switches always end with this variable in the
same state that it began in, so there is no need to fix it up. Only
sched_lock.mtx_lock really needs a fixup.
Replaced fixup of sched_lock.mtx_recurse in fork_exit() by an assertion
that sched_lock is owned and not recursed after it is fixed up. This
assertion much match the one in mi_switch(), and if sched_lock were
recursed then a non-null fixup of sched_lock.mtx_recurse would probably
be needed again, unlike in sched_switch(), since fork_exit() doesn't
return to its caller in the normal way.
Correct a bug when the number of pages for external mbufs was
very large. In this case the page number could overflow into the large
buffer flag. Make this more unlikley by move that flag further away.
is returned from the card to the driver. Add a counter that shows
how many times this allocation has failed. Note, that we could even
further delay the allocation of the mbuf until we know, that we need it
(there are no receive errors and the connection is open). This will be done
in a later commit.
Print the new statistics field in atmconfig.
atomic instructions instead. Remove the stuff used to track
whether an external mbuf travels through the system. This is
temporary only and will come back soon.
code has the typical branch prediction detour, which creates cross-
section branches. A LINT kernel is apparently large enough nowadays
that the .text and .text2 sections cannot always be layed-out so that
branches between them reach.
The fix is to stop using the alpha-specific bitops and instead use
the portable implementation used by all platforms other than alpha
and i386.
with an mbuf until it is reclaimed. This is in contrast to tags that
vanish when an mbuf chain passes through an interface. Persistent tags
are used, for example, by MAC labels.
Add an m_tag_delete_nonpersistent function to strip non-persistent tags
from mbufs and use it to strip such tags from packets as they pass through
the loopback interface and when turned around by icmp. This fixes problems
with "tag leakage".
Pointed out by: Jonathan Stone
Reviewed by: Robert Watson
reset in a child process after a fork(). Currently, however, only the
real timer is cleared while the virtual and profiling timers are inherited.
The realtimer is cleared because it lives directly in struct proc in
p_realtimer. It is in the zero'd section of struct proc. The other timers
live in the p_timer[] array in struct pstats. These timers are copied on
fork() rather than zero'd. The fix is to move p_timer[] to the zero'd
part of struct pstats so that they are zero'd instead of copied on fork().
Note: Since at least FreeBSD 2.0 (and possibly earlier) we've had storage
for two real interval timers. Now that the uarea is less important,
perhaps we could move all of p_timer[] over to struct proc and drop the
p_realtimer special case to fix that.
PR: kern/58647
Reported by: Dan Nelson <dnelson@allantgroup.com>
MFC after: 1 week
the RNAT bit index constant. The net effect of this is that there's
no discontinuity WRT NaT collections which greatly simplifies certain
operations. The cost of this is that there can be up to 504 bytes of
unused stack between the true base of the kernel stack and the start
of the RSE backing store. The cost of adjusting the backing store
pointer to keep the RNAT bit index constant, for each kernel entry,
is negligible.
The primary reasons for this change are:
1. Asynchronuous contexts in KSE processes have the disadvantage of
having to copy the dirty registers from the kernel stack onto the
user stack. The implementation we had so far copied the registers
one at a time without calculating NaT collection values. A process
that used speculation would not work. Now that the RNAT bit index
is constant, we can block-copy the registers from the kernel stack
to the user stack without having to worry about NaT collections.
They will be in the right place on the user stack.
2. The ndirty field in the trapframe is now also usable in userland.
This was previously not the case because ndirty also includes the
space occupied by NaT collections. The value could be off by 8,
depending on the discontinuity. Now that the RNAT bit index is
contants, we have exactly the same number of NaT collection points
on the kernel stack as we would have had on the user stack if we
didn't switch backing stores.
3. Debuggers and other applications that use ptrace(2) can now copy
the dirty registers from the kernel stack (using ptrace(2)) and
copy them whereever they want them (onto the user stack of the
inferior as might be the case for gdb) without having to worry
about NaT collections in the same way the kernel doesn't have to
worry about them.
There's a second order effect caused by the randomization of the
base of the backing store, for it depends on the number of dirty
registers the processor happened to have at the time of entry into
the kernel. The second order effect is that the RSE will have a
better cache utilization as compared to having the backing store
always aligned at page boundaries. This has not been measured and
may be in practice only minimally beneficial, if at all measurable.
license. Only clause 3 has been revoked. Restore the fourth clause
as clause 3.
Pointed out by: das@
Remove my name as a copyright holder since I don't use a BSD license
compatible or comparable to the UCB license. I choose not to add a
complete second license for my work for aesthetic reasons, nor to
replace the UCB license on grounds of rewriting more than 90% of the
source files. The rewrite can also be seen as an enhancement and since
the files were practically empty, it's rather trivial to have changed
90% of the files.
the maximum number of pages for buffers) return -1 instead of 0.
This fixes a panic under conditions when many mbufs are needed.
Update the head pointer of the receive buffer pool queue even when
we could not supply a buffer to the chip. Otherwise the chip will
not re-interrupt us for another try. A better strategy would probably
be to remember this condition and to supply buffers without an interrupt
as soon as buffers get available.
Contributed by: Thomaswuerfl@gmx.de
- In sched_prio(), adjust the run queue for threads which may need to move
to the current queue due to priority propagation .
- In sched_switch(), fix style bug introduced when the KSE support went in.
Columns are 80 chars wide, not 90.
- In sched_switch(), Fix the comparison in the idle case and explicitly
re-initialize the runq in the not propagated case.
- Remove dead code in sched_clock().
- In sched_clock(), If we're an IDLE class td set NEEDRESCHED so that threads
that have become runnable will get a chance to.
- In sched_runnable(), if we're not the IDLETD, we should not consider
curthread when examining the load. This mimics the 4BSD behavior of
returning 0 when the only runnable thread is running.
- In sched_userret(), remove the code for setting NEEDRESCHED entirely.
This is not necessary and is not implemented in 4BSD.
- Use the correct comparison in sched_add() when checking to see if an idle
prio task has had it's priority temporarily elevated.
instead of retrying them blindly.
This should fix some of the problems people have been having with cdrom
drives taking a long time to probe. This should also eliminate the need
for the initial TUR in cdsize().
cam_periph.c: Don't keep retrying if the error we get back is a fatal
error. This should help us detect the transition from
"Logical unit not ready, cause not reportable" to "Medium
not present" in the "TUR many" handler. (The TUR many
handler gets triggered for Logical unit not ready, cause
not reportable errors.)
scsi_cd.c: Remove the initial test unit ready in cdsize(). Hopefully
it isn't necessary after the above change.
Submitted by: gibbs (mostly)
Tested by: peter
MFC After: 2 weeks
added for XFree86. There are 2 reasons for doing this with sysarch():
1. The memory mapped I/O space is not at a fixed physical address. An
application has to use some interface to get the base address. It
gets worse if the machine has multiple memory mapped I/O spaces.
2. Access to the memory mapped I/O space needs to happen through a
translation that is flagged as uncachable. There's no interface
that allows a process to do uncached memory I/O, other than though
/dev/mem (possibly).
So, until we either disallow direct access to I/O or bus space from
userland or have a better way of doing this, sysarch() has the least
negative impact on existing interfaces.
of lock acquires and releases performed.
- Move an assertion from vm_object_collapse() to vm_object_zdtor()
because it applies to all cases of object destruction.
Make the pccard attachment work with NEWCARD
Start locking of the driver, but only the macros are defined right now
Tested on: Megahertz CC10BT/2
# (These cards are very popular on ebay these days, and run < $10 including
# shipping from some sellers).
routines. Otherwise we run into trouble with speculative tlb preloads
on SMP systems. This effectively defeats Jeff's revision 1.438
optimization (for his pentium4-M laptop) in the SMP case. It breaks
other systems, particularly athlon-MP's.
if we do acquire an advisory lock, great! We'll release it later.
However, if we fail to acquire a lock, we perform the coredump
anyway. This problem became particularly visible with NFS after
the introduction of rpc.lockd: if the lock manager isn't running,
then locking calls will fail, aborting the core dump (resulting in
a zero-byte dump file).
Reported by: Yogeshwar Shenoy <ynshenoy@alumni.cs.ucsb.edu>
type, rather than "object_label" as the first argument. This reduces
complexity a little for the consumer, and also makes it easier for
use to rename the underlying entry points in struct mac_policy_obj.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
in bufs_info sysctl handler. dev->dma and dev->dma_lock existence are
protected by DRM_LOCK(). Fixes panic on sysctl hw.dri when the device is
uninitialied (when you aren't in X).
- Add a DDB function to dump the contents of an ithread and optionally
details about each handler in that ithread. This function can be used
by MD code to implement DDB commands that display information about
interrupt sources and their registered handlers.
the ACPI timer and we shouldn't do that if ACPI is already around to do
that for us.
- Set a description and tweak the order of checks in the probe function
to more closely match other PCI drivers.
This should probably be moved to sys/dev/piix/piix.c at some point and
turned on for all i386 kernels rather than just SMP ones.
(aka RFC2292bis). Though I believe this commit doesn't break
backward compatibility againt existing binaries, it breaks
backward compatibility of API.
Now, the applications which use Advanced Sockets API such as
telnet, ping6, mld6query and traceroute6 use RFC3542 API.
Obtained from: KAME
dcons(4): very simple console and gdb port driver
dcons_crom(4): FireWire attachment
dconschat(8): User interface to dcons
Tested with: i386, i386-PAE, and sparc64.
giant, which implies that we need to take out giant it we're NOT
MPSAFE.
# I can't believe the number of people that looked at this failed to
# detect this.
vm_pageout_page_stats() from Giant.
- Modify vm_pager_put_pages() and vm_pager_page_unswapped() to expect the
vm object to be locked on entry. (All of the pager routines now expect
this.)
that at most 20% of sockets can be in time_wait at one time, ensuring
that time_wait sockets do not starve real connections from inpcb
structures.
No implementation change is needed, jlemon already implemented a nice
LRU-ish algorithm for tcp_tw structure recycling.
This should reduce the need for sysadmins to lower the default msl on
busy servers.
overlapping TR/TC entries (which results in a machine check). Note
that we don't look at the size of the memory descriptor, because
it doesn't guarantee non-overlap.
With this change, a UP kernel could boot on a Intel Tiger4 machine
with the following options:
options LOG2_ID_PAGE_SIZE=26 # 64M
options LOG2_PAGE_SIZE=14 # 16K
Approved by: marcel
setting. Make va_copy be an alias if __ISO_C_VISIBLE >= 1999.
Why? more than a few ports have an autoconf that looks for __va_copy
because it is available on glibc. It is critical that we use it if
at all possible on amd64. It generally isn't a problem for i386 and its
ilk because autoconf driven code tends to fall back to an assignment.
locking, and the apparently unnecessary locking for -stable has been removed.
This may fix issues with missed interrupts since April, which manifested
themselves as slowdowns or hangs in radeon, in particular. Many cleanups also
took place. In the shared code, there are improvements to r128 driver
stability.
when loaded as a module
o cleanup data structures on module unload when no application has
been started (i.e. kldload, kldunload w/o mrtd)
o remove extraneous unlocks immediately prior to destroying them
Supported by: FreeBSD Foundation
part of the support is that it still assumes one master and one target
where as AGP 3.0 actually supports multiple devices on the bus.
Submitted by: Keith Whitwell <keith@tungstengraphics.com>
Sponsored by: The Weather Channel
a minor conflict):
o Use ETHER_ADDR_LEN in preference to '6'.
o Remove two unnecessary (caddr_t) casts. One of them causes problems in
my tree where etherbroadcastaddr is const, and (caddr_t) casts the const
away.
we had were bogus.
While here, reassign the copyright to the Project. There's nothing
in this files that originates from NetBSD, especially now that the
FreeBSD/alpha bits have been removed, but even then the amount of
inherited code that we actually used was nil.
mcontext_t for the register values. Currently only ld8 and ldfd
instructions are handled as those are the ones we need now (a
misaligned ld8 occurs 4 times in ntpd(8) and a misaligned ldfd
occurs once in mozilla 1.4 and 1.5). Other instructions are added
when needed.
at the first address and spills it to the second address. This
allows unaligned_fixup() to update the context of the process in
a way that assures proper rounding.
Similar functions for single-and extended-precision are added when
needed.
in that it provides an abstract (intermediate) representation for
instructions. This significantly improves working with instructions
such as emulation of instructions that are not implemented by the
hardware (e.g. long branch) or enhancing implemented instructions
(e.g. handling of misaligned memory accesses). Not to mention that
it's much easier to print instructions.
Functions are included that provide a textual representation for
opcodes, completers and operands.
The disassembler supports all ia64 instructions defined by revision
2.1 of the SDM (Oct 2002).
implement i386 compat numbers where it makes sense. This would save a
syscall translation layer. Yes, this breaks the abi slightly again, but
fortunately its just a recompile rather than tweaking the source. I will
be fixing the libc stubs while I'm here.
to a multiple of the access byte width. This overcomes errors in the
AML often found in Toshiba laptops. These errors were allowed by
the Microsoft ASL compiler and interpreter. This will NOT be imported
by ACPI-CA so make the change on our local branch. File was already off
the vendor branch.
Submitted by: blaz
Original idea: Rick Richardson for Linux
enable strict checks of the AML. Our default behavior will be to relax
checks to work on as many platforms as possible. Also clean up and document
other ACPI options while I'm here.
Include src/sys/security/mac/mac_internal.h in kern_mac.c.
Remove redundant defines from the include: SYSCTL_DECL(), debug macros,
composition macros.
Unstaticize various bits now exposed to the remainder of the kernel:
mac_init_label(), mac_destroy_label().
Remove all the functions now implemented in mac_process/mac_vfs/mac_net/
mac_pipe. Also remove debug counters, sysctls exporting debug
counters, enforcement flags, sysctls exporting enforcement flags.
Leave module declaration, sysctl nodes, mactemp malloc type, system
calls.
This should conclude MAC/LINT/NOTES breakage from the break-out process,
but I'm running builds now to make sure I caught everything.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Unstaticize mac_late.
Remove ea_warn_once, now in mac_vfs.c.
Unstaticisize mac_policy_list, mac_static_policy_list, use
struct mac_policy_list_head instead of LIST_HEAD() directly.
Unstaticize and un-inline MAC policy locking functions so they can
be referenced from mac_*.c.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
security/mac/mac_net.c
security/mac/mac_pipe.c
security/mac/mac_process.c
security/mac/mac_system.c
security/mac/mac_vfs.c
Note: Here begins a period of NOTES/LINT build breakage due to duplicate
symbols that will shortly be removed from kern_mac.c.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Extended attribute transaction warning flag if transactions aren't
supported on the EA implementation being used.
Debug fallback flag to permit a less conservative fallback if reading
an on-disk label fails.
Enforce_fs toggle to enforce file systme access control.
Debugging counters for file system objects: mounts, vnodes, devfs_dirents.
Object initialization, destruction, copying, internalization,
externalization, relabeling for file system objects.
Life cycle operations for devfs entries.
Generic extended attribute label implementation for use by UFS, UFS2 in
multilabel mode.
Generic single-level label implementation for use by all file systems
when in singlelabel mode.
Exec-time transition based on file label entry points.
Vnode operation access control checks (many).
Mount operation access control checks (few).
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Pipe enforcement flag.
Pipe object debugging counters.
MALLOC type for MAC label storage.
Pipe MAC label management routines, externalize/internalization/change
routines.
Pipe MAC access control checks.
Un-staticize functions called from mac_set_fd() when operating on a
pipe. Abstraction improvements in this space seem likely.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Network and socket enforcement toggles.
Counters for network objects (mbufs, ifnets, bpfdecs, sockets, and ipqs).
Label management routines for network objects.
Life cycle events for network objects.
Label internalization/externalization/relabel for ifnets, sockets,
including ioctl implementations for sockets, ifnets.
Access control checks relating to network obejcts.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
in mac_internal.h:
Sysctl tree declarations.
Policy list structure definition.
Policy list variables (static, dynamic).
mac_late flag.
Enforcement flags for process, vm, which have checks in multiple files.
mac_labelmbufs variable to drive conditional mbuf labeling.
M_MACTEMP malloc type.
Debugging counter macros.
MAC Framework infrastructure primitives, including policy locking
primitives, kernel label initialization/destruction, userland
label consistency checks, policy slot allocation.
Per-object interfaces for objects that are internalized and externalized
using system calls that will remain centrally defined: credentials,
pipes, vnodes.
MAC policy composition macros: MAC_CHECK, MAC_BOOLEAN, MAC_EXTERNALIZE,
MAC_INTERNALIZE, MAC_PERFORM.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
vm_pageout_scan(). Rationale: I don't like leaving a busy page in the
cache queue with neither the vm object nor the vm page queues lock held.
- Assert that the page is active in vm_pageout_page_stats().
Until we can have perfect knowledge that all callers above us think it's okay
for us to sleep, releasing *our* locks of course, we don't dare try and sleep.
in connection with Marvell based SATA->PATA dongles.
The problem was caused by a combination of things working
together to make it hard to spot...
The ATA driver has always started the ATA command, then build
the SG list for DMA and then finally started the DMA engine.
While this is according to specs, it poses a potential
problem as some controllers apparently do not allow for unlimitted
time between starting the ATA command and starting the DMA engine.
At about the same time as ATAng was committed there were lots
of other changes applied, some of which was locking in parts
that causes the busdma load functions to take significantly
longer to load the SG list.
This pushed the time spent between starting the ATA command and
starting the DMA engine over the hill for some controllers
(especially the Silicon Image DS3112a) and caused what looked
like lost interrupts.
The solution is to get all the SG list work or rather all
busdma related stuff done before we even try to start anything.
This has the nice side effect of seperating busdma out the
way it should be, so the working of the ATA machinery is not
cluttered up with busdma droppings, making the code easier
to read and understand.
sysctl that a given variable is tunable.
Also added is CTLFLAG_RDTUN, which is CTLFLAG_RD|CTLFLAG_TUN; TUN does
not always imply read-only, so RDTUN should be used where RD was used
before.
for dev_strategy() use.
Retire bio_driver[12] (aliases for b_io.bio_driver[12]) these fields are
reserved for device driver use and can as such never have any interest
in the buf end of things.
- Return NULL instead of returning memory outside of the stackgap
in stackgap_alloc() (FreeBSD-SA-00:42.linux)
- Check for stackgap_alloc() returning NULL in svr4_emul_find(),
and clean_pipe().
- Avoid integer overflow on large nfds argument in svr4_sys_poll()
- Reject negative nbytes argument in svr4_sys_getdents()
- Don't copy out past the end of the struct componentname
pathname buffer in svr4_sys_resolvepath()
- Reject out-of-range signal numbers in svr4_sys_sigaction(),
svr4_sys_signal(), and svr4_sys_kill().
- Don't malloc() user-specified lengths in show_ioc() and
show_strbuf(), place arbitrary limits instead.
- Range-check lengths in si_listen(), ti_getinfo(), ti_bind(),
svr4_do_putmsg(), svr4_do_getmsg(), svr4_stream_ti_ioctl().
Some fixes obtain from OpenBSD.
pick up the DEVFS inode number from the dev_t and find our directory
entry from that, we don't need to scan the directory to find it.
This also solves an issue with on-demand devices in subdirectories.
Submitted by: cognet
by libguile that needs to know the base of the RSE backing store. We
currently do not export the fixed address to userland by means of a
sysctl so user code needs to hardcode it for now. This will be revisited
later.
The RSE backing store is now at the bottom of region 4. The memory stack
is at the top of region 4. This means that the whole region is usable
for the stacks, giving a 61-bit stack space.
Port: lang/guile (depended of x11/gnome2)
chain passed into dc_encap, which dc_start was unaware of. This caused
the old (now invalid) mbuf to be passed to BPF_MTAP.
Spotted by: Kenjiro Cho <kjc@csl.sony.co.jp>
is non-free. (More checks can/should be added in the future.)
Use M_ASSERTVALID in BPF_MTAP so that we catch when freed mbufs are
passed in, even if no bpf listeners are active.
Inspired by a bug in if_dc caught by Kenjiro Cho.
rijndael_blockDecrypt() as both input and output.
This property is important because inside rijndael we can get away
with allocating just a 16 byte "work" buffer on the stack (which
is very cheap), whereas the calling code would need to allocate the
full sized buffer, and in all likelyhood would have to do so with
an expensive malloc(9).
table, acquiring the necessary locks as it works. It usually returns
two references to the new descriptor: one in the descriptor table
and one via a pointer argument.
As falloc releases the FILEDESC lock before returning, there is a
potential for a process to close the reference in the file descriptor
table before falloc's caller gets to use the file. I don't think this
can happen in practice at the moment, because Giant indirectly protects
closes.
To stop the file being completly closed in this situation, this change
makes falloc set the refcount to two when both references are returned.
This makes life easier for several of falloc's callers, because the
first thing they previously did was grab an extra reference on the
file.
Reviewed by: iedowse
Idea run past: jhb
to the object's type field and the call to vm_pageout_flush() are
synchronized.
- The above change allows for the eliminaton of the last parameter
to vm_pageout_flush().
- Synchronize access to the page's valid field in vm_pageout_flush()
using the containing object's lock.
- Specifying VM_MAP_WIRE_HOLESOK should not assume that the start
address is the beginning of the map. Instead, move to the first
entry after the start address.
- The implementation of VM_MAP_WIRE_HOLESOK was incomplete. This
caused the failure of mlockall(2) in some circumstances.
Use EP_{READ,WRITE}{,_MULTI}_{1,2,4} instead. I've had several people
submit patches like this over the years of varying qualities, markm
being the last. The names were chosen in consulation with mdodd on
irc.
I've tested this with only PCMCIA cards: 3CCE589EC and 3CCSH572BT.
I've not tried with my more extensive ISA, EISA and cbus collection.
Reviewed by: mdodd
the point where it being a macro is no longer sensible, and it will
only be more so in days to come.
BIO_STRATEGY() is now only used from DEV_STRATEGY() and should not
be used directly anymore.
Put the contents of both in the new function dev_strategy() and
make DEV_STRATEGY() call that function.
In addition, this allows us to make the rather magic bufdonebio()
helper function static.
This alse saves hunderedandsome bytes of code in a typical kernel.
Though this is still incomplete and has some missing features such as
exclusive login and event notification, it may be enough for someone
who wants to play with it.
This driver is supposed to work with firewire(4), targ(4) of CAM(4)
and scsi_target(8) which can be found in /usr/share/example/scsi_target.
This driver doesn't require sbp(4) which implements initiator mode.
Sample configuration:
Kernel: (you can use modules as well)
device firewire
device scbus
device targ
device sbp_targ
After reboot:
# mdconfig -a -t malloc -s 10m
md0
# scsi_target 0:0:0 /dev/md0
(Assuming sbp_targ0 on scbus0)
You should find the 10MB HDD on FreeBSD/MacOS X/WinXP or whatever connected
to the target using FireWire.
Manpage is not finished yet.
- Change type of target->luns to allocate an array of LUNs dynamically.
This allows targets to change their number of LUNs after each bus reset.
- Serialize ORB POINTER command for each LUN.
- Improve debug messages.
