1.307 Turn on kernel debug support
1.309 Turn off pcm
1.311 move wx to miibus chipsets
1.312 Comment out USERCONFIG
Reminded by: mihira-san <sanpei@sanpei.org>
information until the problems can be tracked down. Right now these
are unconditional, but later it will be hidden behind a boot verbose.
Also, if there are no events listed in the event mask, return right
away. Specifically avoid writing back interrupt acks in this case.
1: most drivers are sensitive to timing, and
2: the handlers are MPSAFE and need a chance to get into the kernel
before some other non-mpsafe handler blocks the ithread on Giant in
shared irq cases.
Reviewed by: cg (in principle)
worked before.
mixer, dsp and sndstat are seperate devices - give them their own cdevsws
instead of demuxing requests sent to a single cdevsw.
use the si_drv1/si_drv2 fields in dev_t structures for holding information
specific to an open instance of mixer/dsp.
nuke /dev/{dsp,dspW,audio}[0-9]* links - this functionality is now provided
using cloning.
various locking fixes.
ports later on.
This includes the basic MI interface routines as well as a console driver.
The MD code is kept in the MD directories.
Reviewed by: obrien
us our first minimal glimpse of PowerPC support.
With this code we can get to the "mountroot>" prompt on my Apple iMac. We
can't get any further due to lack of clock and interrupt handling, among other
things. This does however mean that pmap and VM are initialising.
We're fairly dependant on OpenFirmware at this point, but I hope to add
support for other classes of firmware at a later stage.
Reviewed by: obrien, dfr
Print type of pci bridge we find.
Force the IRQ of pci bridges upon all its children.
Allocate the resources on behalf of the bridge when we're testing to see if
they exist.
This should help people who don't read updating instructions very well.
This patch started out with an idea from Shigeru Yamamoto-san in -current.
make(1) wants to build loader.sym *before* the .o files. Eliminating
one seeminly intermediate step avoids the problem. Somehow, it seems
that variables are not getting expanded at the right time.
Any explanations would be appreciated...
Changing:
${BASE}.sym: ${OBJS} ${LIBSTAND} ${LIBFICL} ${LIBALPHA} ${CRT} vers.o
${LD} ...
To:
BASEOBJS= ${OBJS} ${LIBSTAND} ${LIBFICL} ${LIBALPHA} ${CRT} vers.o
${BASE}.sym: ${BASEOBJS}
echo ${BASEOBJS}
${LD} ...
.. the echo only shows LIBFICL, CRT and vers.o. ${OBJS} is not included.
told to use IRQ 6, progam the pcic to use irq 7 instead. Evidentally,
at least some of the cards are wired this way. If you want to use irq
6, configure it. All the mapping is done just before we set the
interrupt registers. See [FreeBSD98-testers 5064] for details.
Added commentary about valid interrupts on some CBUS pc98 CL PD6722
based cards.
Submitted by: Hiroshi TSUKADA-san <hiroshi@kiwi.ne.jp>
built in, or as an addon card (My Japanese isn't quite good enough to
know which). [FreeBSD98-testers 5098] contains all the details.
Submitted by: Kawanobe Koh-san <kawanobe@st.rim.or.jp>
(I'll be we know which compiler and platform they developed this on...)
Minimally change them to C89 comments to make GCC happy. (this is kinda funny
as the file has piece derived from FreeBDS 3.2)
Also fix FreeBSD id style.
The DP83820/83821 has an undocumented limitation concerning jumbo frames
and TX checksum offload. In order for TX checksum offload to work, the
outgoing frame must fit entirely within the TX FIFO, which is 8192 bytes
in size. This isn't a problem, until you try to send a 9000-byte frame,
at which point the TX DMA engine goes to sleep. It turns out that if
you want to send a jumbo frame larger than 8170 bytes (8192 - 64), you
have to turn off the TX checksum support.
As a workaround, I changed nge_ioctl() so that if the user selects an
MTU larger than 8152 bytes, we clear the if_hwassist flags. The flags
will be set again once the MTU is reduced to a smaller value.
- Use db_printf() instead of printf().
- Clean up decode_syscall() to use regular if-then-else rather than goto's.
- Use the same method of parsing PID's for per-process traces as the x86
code does: that is, if the address passed in is not a valid kernel
address, treat it is a decimal pid.
- If the pid of the current process is specified, fall back to using the
"default" parameters for the trace as curproc's pcb is not valid at this
point.
MFC after: 1 week
we want the checksums calculated on a per-packet basis using control bits
in the extsts field of the DMA descriptor structure. For TX, the chip
seems to want these bits set in the field of the first descriptor in
a fragment chain, not the last.
412: warning: long unsigned int format, unsigned int arg (arg 3)
418: warning: long unsigned int format, unsigned int arg (arg 3)
424: warning: long unsigned int format, unsigned int arg (arg 3)
take a const 'name', since they dont modify anything.
159: warning: passing arg 1 of `getenv_int' discards qualifiers...
167: warning: passing arg 1 of `getenv' discards qualifiers from pointer..
vinumhdr.h:80: warning: redundant redeclaration of `vinum_cdevsw'
vinumext.h:239: warning: previous declaration of `vinum_cdevsw'
in each of the following files:
vinum.c, vinumconfig.c, vinumdaemon.c, vinuminterrupt.c, vinumio.c,
vinumioctl.c, vinumlock.c, vinummemory.c, vinumraid5.c, vinumrequest.c,
vinumrevive.c, vinumstate.c, vinumutil.c
musycc.c:449: warning: long unsigned int format, unsigned int arg (arg 3)
musycc.c:449: warning: long unsigned int format, unsigned int arg (arg 4)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 3)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 4)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 5)
These warnings used to be confined to the alpha but are on all now.
554: passing arg 4 of `resource_string_value' from incompatible pointer type
576: passing arg 4 of `resource_string_value' from incompatible pointer type
593: passing arg 4 of `resource_string_value' from incompatible pointer type
commands that complete (with no apparent error) after
we receive a LIP. This has been observed mostly on
Local Loop topologies. To be safe, let's just mark
all active commands as dead if we get a LIP and we're
on a private or public loop.
MFC after: 4 weeks
could only get a chance of testing it under 4.3, but together with the
if_oltr.c fixes at least it seems to work now. If someone has the chance
to test this under -current, please do.
Unfortunaltey, the TR code itself (if_iso88025subr.c) is not written
in a way that would allow to make a seaparate KLD out of it. By now,
just link it directly into the oltr KLD since it's probably the POLA
to be able to load the TR code together with the only TR hardware
driver we've got by now.
I've got one single unexplained panic (in doreti_switch or somewhere
there, calling a 0xc1XXXXXX address that did no longer belong to the
kernel at all) after unloading the modules once, thus i don't propose
a MFC of this module despite my testing has been done solely on 4.3,
unless someone is really going to test this stuff in -current.
This avoids a null pointer deref panic in TRlldClose() inside the
vendor-supplied object code. It's now possible to unload the driver
at all.
Implement deallocation of malloc()ed memory regions.
MFC after: 2 months
The symptom being treated in 1.98 was to avoid freeing a
pagedep dependency if there was still a newdirblk dependency
referencing it. That change is correct and no longer prints
a warning message when it occurs. The other part of revision
1.98 was to panic when a newdirblk dependency was encountered
during a file truncation. This fix removes that panic and
replaces it with code to find and delete the newdirblk
dependency so that the truncation can succeed.
cpu_mp_start() is never called, mp_ncpus will have a non-zero value.
This prevents systat from dying with an arithmatic exception caused
by a divide-by-zero error on UP alphas running a GENERIC kernel.
Replace the a.out emulation of 'struct linker_set' with something
a little more flexible. <sys/linker_set.h> now provides macros for
accessing elements and completely hides the implementation.
The linker_set.h macros have been on the back burner in various
forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()),
John Polstra (ELF clue) and myself (cleaned up API and the conversion
of the rest of the kernel to use it).
The macros declare a strongly typed set. They return elements with the
type that you declare the set with, rather than a generic void *.
For ELF, we use the magic ld symbols (__start_<setname> and
__stop_<setname>). Thanks to Richard Henderson <rth@redhat.com> for the
trick about how to force ld to provide them for kld's.
For a.out, we use the old linker_set struct.
NOTE: the item lists are no longer null terminated. This is why
the code impact is high in certain areas.
The runtime linker has a new method to find the linker set
boundaries depending on which backend format is in use.
linker sets are still module/kld unfriendly and should never be used
for anything that may be modular one day.
Reviewed by: eivind
- Replace some very poorly thought out API hacks that should have been
fixed a long while ago.
- Provide some much more flexible search functions (resource_find_*())
- Use strings for storage instead of an outgrowth of the rather
inconvenient temporary ioconf table from config(). We already had a
fallback to using strings before malloc/vm was running anyway.
Following changed was made by previous commit:
- add a pointer to struct mauxtag. two integer was too restrictive.
- add m_aux_{add,find}2.
- make sure to nuke mbuf pointed to m_aux.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.
TODO:
- The definitions of SADB_* in sys/net/pfkeyv2.h are still different
from RFC2407/IANA assignment because of binary compatibility
issue. It should be fixed under 5-CURRENT.
- ip6po_m member of struct ip6_pktopts is no longer used. But, it
is still there because of binary compatibility issue. It should
be removed under 5-CURRENT.
Reviewed by: itojun
Obtained from: KAME
MFC after: 3 weeks
. remove stale comments and a stale #define (from the old days of ft(4))
. make MAX_SEC_SIZE (used in isa_dmainit()) a #define
. fix a typo in a string
. use 0 as the blocksize in devstat_add_entry(), since the actual blocksize
is unknown (devstat(9) suggests to use 0 in that case)
out nearly every platform but the one I tested on requires the intpin
to swizzle out the correct intline.
tested by: Martijn Pronk <mpkisbkl@xs4all.nl> (lca_pci)
page of the image to load section headers and if we let the text section
start at zero, it corrupts the section table when its loaded. With this
change, the loader gets as far as the 'ok' prompt.
processes a little earlier to avoid a deadlock. Second, when calculating
the 'largest process' do not just count RSS. Instead count the RSS + SWAP
used by the process. Without this the code tended to kill small
inconsequential processes like, oh, sshd, rather then one of the many
'eatmem 200MB' I run on a whim :-). This fix has been extensively tested on
-stable and somewhat tested on -current and will be MFCd in a few days.
Shamed into fixing this by: ps
greatly improved traceback code from Ross Harvey. This code
requires the use of more traceback friendly temporary labels
at kernel entry points, hence the changes to exception.s and
asm.h
Reviewed by: jhb, dfr
Obtained from: NetBSD
MFC after: 1 week
higher chips. Treat it as if it were a 113x. This is correct as far
as 16-bit cards go, at least how we're using it.
# It appears that my TI-1031 based pci card that YAMAMOTO shigeru-san gave
# me on my trip to Japan now works.
around, use a common function for looking up and extracting the tunables
from the kernel environment. This saves duplicating the same function
over and over again. This way typically has an overhead of 8 bytes + the
path string, versus about 26 bytes + the path string.
use of the extsts field in DMA descriptors. We need this to tell the chip
to calculate TCP/IP checksums in hardware on a per-packet basis.
- Fix the unions in DMA descriptor structures. Breakage on alpha led
me to realize I'd done it wrong the first time.
that device add/remove will work without usbd running. usbd is still
used for execing stuff, but that is all now. Ideally it could be replaced
by a devd some day. Until now, usbd had to be running so that the
USB_DISCOVER ioctl could be called to walk the tree when an attachment
status change was noticed.
Among the changes:
- when a detach happens, remove any pending 'attach' messages or the system
suffers from whiplash from exec moused / kill moused loops if you do lots
of attach/detach and later start usbd.
- tweaks related to kthread differences
- disable the select handler for the old interface (never return success).
I have not removed it yet or old usbd's will abort. That can get removed
later once usbd is cleaned up and things have stabilized for a few weeks.
- get Giant in the kthread.
- a couple of minor potential bug fixes (usb_nevents vs malloc failure etc)
Pre-approved by: n_hibma (ages and ages ago)
One way we can reduce the amount of traffic we send in response to a SYN
flood is to eliminate the RST we send when removing a connection from
the listen queue. Since we are being flooded, we can assume that the
majority of connections in the queue are bogus. Our RST is unwanted
by these hosts, just as our SYN-ACK was. Genuine connection attempts
will result in hosts responding to our SYN-ACK with an ACK packet. We
will automatically return a RST response to their ACK when it gets to us
if the connection has been dropped, so the early RST doesn't serve the
genuine class of connections much. In summary, we can reduce the number
of packets we send by a factor of two without any loss in functionality
by ensuring that RST packets are not sent when dropping a connection
from the listen queue.
Submitted by: Mike Silbersack <silby@silby.com>
Reviewed by: jesper
MFC after: 2 weeks
not behaving correctly. Fix by attaching to the correct socket.
Also call so{rw}wakeup in addition to the fifo wakeup, so that any
kqfilters attached to the socket buffer get poked.
is usually (always?) used in expressions like (KTR_COMPILE & KTR_FOO).
Defining it as KTR_INTR|KTR_PROC gave the wrong value in approximately
8497 places according to error output for compiling LINT.
ep driver. The rest of the patch will wait until I can put the time
into it to get it righter than the kludge it is.
This protects us against card eject problems at all times,e xecpt when
we're in the epintr ISR.
PCN_BCR_CLRBIT(sc, PCN_BCR_MIICTL, PCN_MIICTL_DANAS);
should be:
PCN_BCR_SETBIT(sc, PCN_BCR_MIICTL, PCN_MIICTL_DANAS);
Turning this bit on is what disables MII autoneg, not turning it off.
Without this, manually setting the media doesn't work.
Noticed by: Jim Browne <jbrowne@jbrowne.com>
true. This permits better interoperability with programs which register
filters on their stdin/stdout handles.
Submitted by: Niels Provos <provos@citi.umich.edu>
I think bde even reviewed it once.
Also, change the name of ActionTEC pat to more generic Lucent Kermit
chip. Add stub for Xircom card. Add cardbus attachment too.
compliant. All the variable definitions and function names are
reasonably consistent, and the functions which should be static (i.e.,
all of them) are. Other assorted fixes were made. The majority of
the delta is indentation fixes.
Partially reviewed by: bde
incorrect due to a missing check for some dependency. This change
avoids the freelist corruption (but not the temporarily inconsistent
state of the file system).
A message is printed as a reminder of the under lying problem when a
pagedep structure is not freed due to the NEWBLOCK flag being set.
Submitted by: Tor.Egge@fast.no
can be made userland-visible as <dev/ic/...>. Also, those files are
not supposed to contain any bus-specific details at all, so placing
them under .../isa/ has been a misnomer from the beginning.
The files in src/sys/dev/ic/ have been repo-copied from their old
location (this commit is a forced null commit there to record this
message).
elected to do this in the probe rather than the attach so that we don't
disturb things which this might reset. different cards have different
quirks, according to their datasheets.
This should fix the "I booted in windows and rebooted to FreeBSD and
now things don't work" problem.
PR: 4847, 20670
route in ifa_ifwithroute(), as the last resort, look up the route to
the gateway, not destination (to derive the interface from).
PR: kern/27852
Submitted by: Iasen Kostoff <tbyte@tbyte.org>
MFC after: 2 weeks
card bus bridges.
We now always use pci interrupts for pci cards. This will allow us to
more easily configure things. You must change your IRQ lines in
/etc/pccard.conf to match what we've probed. I'm not sure the right
way to deal with this right now.
Development of pci pcmcia has been funded by Monzoon Networks AG. I
am grateful for their generosity.
certain cases, and a close() by another process could potentially rip the
pipe out from under the (blocked) locking operation.
Reported-by: Alexander Viro <viro@math.psu.edu>
for card change interrupts is different than the pci stuff that's
coming soon. Set the management irq in different ways. If
pci_parallel interrutp routing, then use the PCI way of getting
interrupts. Move polling mode into pcic_isa since when we're routing
via pci polling doesn't work because many bridges (systems hang solid).
If we're routing interrupts via pci, they can be shared, so flag them
as such.
Note, this doesn't actually change anything since the pci attachment
isn't quite ready to be committed.
A attacker sending a lot of bogus fragmented packets to the target
(with different IPv4 identification field - ip_id), may be able
to put the target machine into mbuf starvation state.
By setting a upper limit on the number of reassembly queues we
prevent this situation.
This upper limit is controlled by the new sysctl
net.inet.ip.maxfragpackets which defaults to 200,
as the IPv6 case, this should be sufficient for most
systmes, but you might want to increase it if you have
lots of TCP sessions.
I'm working on making the default value dependent on
nmbclusters.
If you want old behaviour (no upper limit) set this sysctl
to a negative value.
If you don't want to accept any fragments (not recommended)
set the sysctl to 0 (zero).
Obtained from: NetBSD
MFC after: 1 week
if_up() must be called at splnet or higher.
Second, set the IFF_RUNNING flag on an interface after its
resources (i.e. tunnel source and destination addresses)
have been set. Note that we don't set IFF_UP because it is
if_up()'s job to do that.
PR: kern/27851
Submitted by: Horacio J. PeÓa <horape@compendium.com.ar>
The 3C509-TX card apparently had a slightly different version of the
chip, and has problems when this register is set. The problem does
not appear on the 3C509{BC} cards, but since only the fxp driver needs
specific bits set, conditionalize on that.
canonical: define a versioned struct xswdev, and add a sysctl node
handler that allows the user to get this structure for a certain device
index by specifying this index as last element of the MIB.
This new node handler, vm.swap_info, replaces the old vm.nswapdev
and vm.swapdevX.* (where X was the index) sysctls.
memory I/O space. Otherwise, our resource allocation system might
mistakenly assign pccard, plug and play devices or other things
addresses that conflict with ROMs.
I cleaned up his code a little from the submited driver: style(9)
issues, commentary on why something that looks incorrect really is
correct. Also noted that while a checksum field is defined for the
ROMs, enough common hardware neglects it to make it not worthwhile
checking.
Submitted by: Nikolai Saoukh <nms@otdel-1.org>
PR: 22078
the interface conversion to platform.pci_intr_route(). I've left the
platform.pci_intr_route() function pointer in place, as well as
alpha_pci_route_interrupt(), but no platform currently implements it.
To work around the removal of alpha_platform_assign_pciintr(cfg);
from the pci probe code, I've hooked in calls to platform.pci_intr_map()
in pcib_read_config (similar to the x86 APIC_IO ifdef in pci_cfgregread)
for every chipset that has a platform which needs it.
While here, I've removed the interupt mapping/routing code from the
AS2x00 platform because its not required (it has never been present in
-stable).
Tested on: UP1000, Miata(GL), XP1000, AS2100, AS500
Only tun0 -> tun32767 may now be opened as struct ifnet's if_unit
is a short.
It's now possible to open /dev/tun and get a handle back for an available
tun device (use devname to find out what you got).
The implementation uses rman by popular demand (and against my judgement)
to track opened devices and uses the new dev_depends() to ensure that
all make_dev()d devices go away before the module is unloaded.
Reviewed by: phk
- move the sysctl code to kern_intr.c
- do not use INTRCNT_COUNT, but rather eintrcnt - intrcnt to determine
the length of the intrcnt array
- move the declarations of intrnames, eintrnames, intrcnt and eintrcnt
from machine-dependent include files to sys/interrupt.h
- remove the hw.nintr sysctl, it is not needed.
- fix various style bugs
Requested by: bde
Reviewed by: bde (some time ago)
This closes a minor information leak which allows a remote observer to
determine the rate at which the machine is generating packets, since the
default behaviour is to increment a counter for each packet sent.
Reviewed by: -net
Obtained from: OpenBSD
setting the 'max packet size' register in window 3. This only
works for cards based on the cyclone or newer chipsets (i.e. it
won't work with the original 3c905/boomerang cards).
There is a trick which will work with the boomerang, which is to turn
on the 'large packets ok' bit in the MAC control register, however this
lets the chip accept any frame up to 4K in length, which is larger than
the mbuf cluster buffers we use to receive frames. If somebody sends us
such a frame and the chip DMAs it to us, it could write past the end
of the cluster buffer and clobber something.
PR: kern/27742
A attacker sending a lot of bogus fragmented packets to the target
(with different IPv4 identification field - ip_id), may be able
to put the target machine into mbuf starvation state.
By setting a upper limit on the number of reassembly queues we
prevent this situation.
This upper limit is controlled by the new sysctl
net.inet.ip.maxfragpackets which defaults to NMBCLUSTERS/4
If you want old behaviour (no upper limit) set this sysctl
to a negative value.
If you don't want to accept any fragments (not recommended)
set the sysctl to 0 (zero)
Obtained from: NetBSD (partially)
MFC after: 1 week
all alphas with devices behind ppb's. I'm working on a better solution now.
Note that all alphas that use per-platform interrupt mapping are broken
again (as they have been for several months)
gigabit ethernet controller chip. This device is used on some
fiber optic gigE cards from SMC, D-Link and Addtron. Jumbograms and
TCP/IP checksum offload on receive are supported. Hardware VLAN
filtering is not, because it doesn't play well with our existing
VLAN code. Also add manual page.
There is a 4.x version of this driver available at
http://www.freebsd.org/~wpaul/Level1/4.x if anyone feels adventurous
and wants to test it. I still need to do performance testing and
tuning with this device.
(For my next trick, I will make the 3Com 3cR990 sit up and beg.)
any response to our third SYN to work-around some broken
terminal servers (most of which have hopefully been retired)
that have bad VJ header compression code which trashes TCP
segments containing unknown-to-them TCP options.
PR: kern/1689
Submitted by: jesper
Reviewed by: wollman
MFC after: 2 weeks
this works on cs4630 chips, and should implement the clkrun hack for
thinkpads- this will display diagnostic messages when triggered until its
correctness is established.
from cpu_switch(), curproc has been changed, but the sched_lock owner will
not be updated until we return to mi_switch(), thus we deadlock against
ourselves. As a workaround, push the acquire and release of sched_lock out
to the callers of set_user_ldt(). Note that we can't use a mtx_assert() in
set_user_ldt for the same reason.
Sleuting by: tmm
Tested by: tmm, dougb
For FTP control connection, keep the CRLF end-of-line termination
status in there.
Fixed the bug when the first FTP command in a session was ignored.
PR: 24048
MFC after: 1 week
* all members of msginfo from sysv_msg.c;
* msqids from sysv_msg.c;
* sema from sysv_sem.c; and
* shmsegs from sysv_shm.c;
These will be used by ipcs(1) in non-kvm mode.
Reviewed by: tmm
they can be used with cell operators like !.
As I did this, I noticed the whole CELL thing might have problems with
big endian architectures with sizeof(int)!=sizeof(void*).
UDP checksums too, not just IP. The chip only tells us if the checksum
is ok, it does not give us a copy of the partial checksum for later
processing. We have to deal with this the right way, but we can deal
with it.
- Use __func__ instead of __FUNCTION.
- Support power-off to S3 or S5 (takawata)
- Enable ACPI debugging earlier (with a sysinit)
- Fix a deadlock in the EC code (takawata)
- Improve arithmetic and reduce the risk of spurious wakeup in
AcpiOsSleep.
- Add AcpiOsGetThreadId.
- Simplify mutex code (still disabled).
attempting to remove nonexistant exports with MNT_DELEXPORT returns
an error; before this change it always succeeded. This caused
mountd(8) to log "can't delete exports for /whatever" warnings.
Change the error code from EINVAL to a more specific ENOENT, and
make mountd ignore this error when deleting the export list. I
could have just restored the previous behaviour of returning success,
but I think an error return is a useful diagnostic.
Reviewed by: phk
----
Make a device for each ISP- really usable only with devfs and add an ioctl
entry point (this can be used to (re)set debug levels, reset the HBA,
rescan the fabric, issue lips, etc).
----
Add in a kernel thread for Fibre Channel cards. The purpose of this
thread is to be woken up to clean up after Fibre Channel events
block things. Basically, any FC event that casts doubt on the
location or identify of FC devices blocks the queues. When, and
if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED
async event, we activate the kthread which will then, in full thread
context, re-evaluate the local loop and/or the fabric. When it's
satisfied that things are stable, it can then release the blocked
queues and let commands flow again.
The prior mechanism was a lazy evaluation. That is, the next command
to come down the pipe after change events would pay the full price
for re-evaluation. And if this was done off of a softcall, it really
could hang up the system.
These changes brings the FreeBSD port more in line with the Solaris,
Linux and NetBSD ports. It also, more importantly, gets us being
more proactive about topology changes which could then be reflected
upwards to CAM so that the periph driver can be informed sooner
rather than later when things arrive or depart.
---
Add in the (correct) usage of locking macros- we now have lock transition
macros which allow us to transition from holding the CAM lock (Giant)
and grabbing the softc lock and vice versa. Switch over to having this
HBA do real locking. Some folks claim this won't be a win. They're right.
But you have to start somewhere, and this will begin to teach us how
to DTRT for HBAs, etc.
--
Start putting in prototype 2300 support. Add back in LIP
and Loop Reset as async events that each platform will handle.
Add in another int_bogus instrumentation point.
Do some more substantial target mode cleanups.
MFC after: 8 weeks
it becomes possible to trap in ptsstop() in kern/tty_pty.c
if the slave side has never been opened during the life of a kernel.
What happens is that calls to ttyflush() done from ptyioctl() for the
controlling side end up calling ptsstop() [via (*tp->t_stop)(tp, <X>)]
which evaluates the following:
struct pt_ioctl *pti = tp->t_dev->si_drv1;
In order for tp->t_dev to be set, the slave device must first be
opened in ttyopen() [kern/tty.c].
It appears that the only problem is calls to (*tp->t_stop)(tp, <n>),
so this could also happen with other ioctls initiated by the
controlling side before the slave has been opened.
PR: 27698
Submitted by: David Bein bein@netapp.com
MFC after: 6 days
it with vfsload("msdos").
(The proper fix would be to rename the `msdos' file system to
`msdosfs' in VFS_SET(), and mount_msdos(8) to mount_msdosfs(8).
But that would break too many existing fstab(5) setups, and
would require a lot of unnecessary documentation and code
msdos -> msdosfs changes.)
Noticed by: markm
csc_route and func_route to hold the way that each interrupt is
routed. csc is Card Status Change in the datasheets and standard, but
is called "Management Interrupt" in FreeBSDese. There are three types
of interrupt routing: ISA parallel, PCI parallel and ISA serial (some
chipsets support other types as well, but I don't plan on supporting
them).
When we try to allocate an interrupt, and the type for that interrupt
is pci_parallel, allow it to be shared by oring in RF_SHAREABLE to the
flags argument. Introduce pcic_alloc_resource to allow this to
happen.
file is processed by passing its name in argv[1]:
return(mod_loadobj(typestr, argv[1]));
however, it is not tested to see if argv[1] actually is defined.
At best, mod_loadobj() near line 244 returns an error like
"can't find 'garbage'" but if the "filename" entered is sufficiently
long, some buffer gets overrun. Of course, "load -t filename" is
actually a typo because we meant to type "load -t mfs_root filename";
nevertheless, a hung machine seems like too harsh a punishment for
such a small typo...
PR: i386/27693
Submitted by: Adrian Steinmann <ast@marabu.ch>
MFC after: 1 week
breakage:
- call PCIB_ROUTE_INTERRUPT() regardless of how valid the intline looks.
Some alphas leave garbage in the intline and leave the intr mapping
to OS platform support routines that map slots/buses to intlines
- Down in the alpha pci code, first try platform.pci_intr_route() and
if it doesn't exist or returns garbage, just read the intline out of
config space.
tested on AS500 (garbage in intline) and UP1000 (PC-like, intline is valid)
Note that a nice little hack like the APIC_IO section of pci_cfgregread()
is not workable. This is because the calling interface for
alpha_pci_route_interrupt() requires us to figure out the bus/slot/etc
from a device_t. At pci_read_device() time, we don't have a device_t
for the bus/slot/func in question.
instead of using two malloced arrays for storing channel lists, use an
slist. convert the sndstat device to use sbufs and optionally provide more
detail about channel state.
vchans are software mixed playback channels. they are not enabled by this
commit. they use the feeder infrastructure to emulate normal playback
channels in a manner transparent to applications, whilst providing as many
channels are desired, especially suitable for devices with only one hardware
playback channel. in the future they will provide additional features.
those wishing to test this functionality will need to add vchan.c to
sys/conf/files and use 'sysctl -w hw.snd.pcm0.vchans' to enable it.
blocksize and auto-rate selection are not yet supported.
