Commit Graph

82898 Commits

Author SHA1 Message Date
jchandra
26d5f66d94 Clean up fast message ring code for XLR.
Fix message ring send path:
- define msgrng_access_enable() which disables local interrupts
  and enables message ring access. Also define msgrng_restore() which
  restores interrupts
- remove all other msgrng enable/disable macros, no need of critical_enter
  and other locking here.
- message_send() fixup: re-read status until pending bit clears
- message_send_retry() fixup: retry only few times with interrupts disabled
- Fix up message_send/message_send_retry callers - call
  msgrng_access_enable() and msgrng_restore() correctly so that interrupts
  are not disabled for long.
- removed unused and obsolete code from sys/mips/rmi/msgring.h
- some style fixes - more later

rge.c (XLR GMAC driver):
- updated for the message ring changes
- remove unused message_send_block()
- retry on credit failure, this is not a permanent failure when credits
  are configured correctly. Add panic if credits are not available to
  send for a long time.
2010-09-08 16:34:08 +00:00
nwhitehorn
6e924b9074 Fix an error made in r209975 related to context ID allocation for 64-bit
PowerPC CPUs running a 32-bit kernel. This bug could cause in-use VSIDs
to be allocated again to another process, causing memory space overlaps
and corruption.

Reported by:	linimon
2010-09-07 23:31:48 +00:00
yongari
f6187ec6d3 Consistently use tab characters instead of tab + space characters.
No functional changes.
2010-09-07 23:08:38 +00:00
yongari
7c0f4a983b Remove trailing CR at EOL. 2010-09-07 22:44:29 +00:00
ivoras
6803865312 Avoid "Entry can disappear before we lock fdvp" panic.
PR:		150143
Submitted by:	Gleb Kurtsou <gk at FreeBSD.org>
Pretty sure it won't blow up: mckusick
MFC after:	2 weeks
2010-09-07 22:40:45 +00:00
jfv
675ed4bcb2 Code correction in refresh_mbufs, just continuing
without index recalc was wrong.
2010-09-07 21:28:45 +00:00
jfv
62814bf50c Tighten up the rx mbuf refresh code, there were some
discrepencies from the igb version which was the target.

Change the message when neither MSI or MSIX are enabled
and a fallback to Legacy interrupts happen, the existing
message was confusing.
2010-09-07 20:13:08 +00:00
yongari
be2f46c2bb Make sure to create DMA'able memory for statistics block. This was
missed in r212061 and it caused crashes for 570x controllers as
controller DMAed statistics to physical address 0.

Reported by:	kan
2010-09-07 18:29:29 +00:00
jhb
0f939dc96e Store the full timestamp when caching timestamps of files and
directories for purposes of validating name cache entries.  This
closes races where two updates to a file or directory within the same
second could result in stale entries in the name cache.  While here,
remove the 'n_expiry' field as it is no longer used.

Reviewed by:	rmacklem
MFC after:	1 week
2010-09-07 14:29:45 +00:00
jhb
b33adc1bec Each processor socket in a QPI system has a special PCI bus for the
"uncore" devices (such as the memory controller) in that socket.  Stop
hardcoding support for two busses, but instead start probing buses at
domain 0, bus 255 and walk down until a bus probe fails.  Also, do not probe
a bus if it has already been enumerated elsewhere (e.g. if ACPI ever
enumerates these buses in the future).
2010-09-07 13:50:02 +00:00
jchandra
1137e0153e PCIe updates for XLS.
Fix interrupt routing so that the irq returned is correct for XLR and
XLS. This also updates the MSI hack we had earlier - we still don't
really support MSI, but we support some drivers that use MSI, by providing
support for allocating one MSI per pci link - this MSI is directly
mapped to the link IRQ.
2010-09-07 07:31:58 +00:00
jchandra
714cd124db Whitespace fixes - indent with tabs instead of spaces.
Few other style(9) changes.
2010-09-07 06:02:43 +00:00
jchandra
d4b2fdabb4 On boards with >512MB memory, the result of vtophys cannot be converted
to KSEG1 address - use pmap_mapdev/pmap_unmapdev instead.

Remove unused variable maxphys.
2010-09-07 05:39:24 +00:00
rstone
62d7f50b87 Fix a typo in r212281. uintptr -> uintptr_t
Pointy hat to:  rstone

Approved by:    emaste (mentor)
MFC after:      2 weeks
2010-09-07 02:51:11 +00:00
rstone
0dd3ce30eb In munmap() downgrade the vm_map_lock to a read lock before taking a read
lock on the pmc-sx lock.  This prevents a deadlock with
pmc_log_process_mappings, which has an exclusive lock on pmc-sx and tries
to get a read lock on a vm_map.  Downgrading the vm_map_lock in munmap
allows pmc_log_process_mappings to continue, preventing the deadlock.

Without this change I could cause a deadlock on a multicore 8.1-RELEASE
system by having one thread constantly mmap'ing and then munmap'ing a
PROT_EXEC mapping in a loop while I repeatedly invoked and stopped pmcstat
in system-wide sampling mode.

Reviewed by:	fabient
Approved by:	emaste (mentor)
MFC after:	2 weeks
2010-09-07 00:23:45 +00:00
nwhitehorn
4701f590b3 Fix the same race condition on 32-bit AIM CPUs that was fixed for 64-bit
ones in r211967 involving VSID allocation.
2010-09-06 23:07:58 +00:00
will
99af9c6710 Fix CARP in backup mode by properly registering its hooks for INET and INET6
using ipproto_{un,}register() and the newly created ip6proto_{un,}register()
so that it can again receive IPPROTO_CARP packets allowing its state machine
to work.

Reviewed by:	bz
Approved by:	ken (mentor)
2010-09-06 21:06:06 +00:00
will
b24b51b25f Fix static kernel builds with carp(4) by changing its SYSINIT order so that
it is initialized after basic protocol initialization, which allows it to
register via pf_proto_register().

Reviewed by:	bz
Approved by:	ken (mentor)
2010-09-06 21:03:30 +00:00
glebius
d14214d82c in_delayed_cksum() requires host byte order.
Reported by:	Alexander Levin <amindomao googlemail.com>
MFC after:	1 week
2010-09-06 13:17:01 +00:00
avg
05028ea8b3 acpi_hp: fix bus attachment code
- add identify method to create driver's own device_t
- successfully probe only driver's own device_t instead of any device_t
- (ab)use device order to hopefully be probed/attached after acpi_wmi

PR:		kern/147858
Tested by:	Maciej Suszko <maciej@suszko.eu>
MFC after:	1 week
2010-09-06 07:34:32 +00:00
jchandra
9b66f5dc60 XLR/XLS hardware interrupts should be programmed level triggered at the
PIC.  This should fix the interrupt releated issues seen after the
interrupt handling re-write for SMP.
2010-09-06 06:18:49 +00:00
tuexen
908a61906a Implement correct handling of address parameter and
sendinfo for SCTP send calls.

MFC after: 4 weeks.
2010-09-05 20:13:07 +00:00
mav
d23fcb99b7 Add support for the Sharp/Micron flash chips to powermac_mvram(4).
Tested on PowerMac G4 AGP.

Reviewed by:	nwhitehorn
2010-09-05 20:04:02 +00:00
mav
90db0224ff Make nexus report name and compat fields as pnpinfo for devices on the
first level of hierarchy, same as done on deeper levels.
2010-09-05 19:57:24 +00:00
mav
ece17c923a Several improvements to HPET driver:
- Add special check for case when time expires before being programmed.
This fixes interrupt loss and respectively timer death on attempt to
program very short interval. Increase minimal supported period to more
realistic value.
 - Add support for hint.hpet.X.allowed_irqs tunable, allowing manually
specify which interrupts driver allowed to use. Unluckily, many BIOSes
program wrong allowed interrupts mask, so driver tries to stay on safe
side by not using unshareable ISA IRQs. This option gives control over
this limitation, allowing more per-CPU timers to be provided, when FSB
interrupts are not supported. Value of this tunable is bitmask.
 - Do not use regular interrupts on virtual machines. QEMU and VirtualBox
do not support them properly, that may cause problems. Stay safe by default.
Same time both QEMU and VirtualBox work fine in legacy_route mode.
VirtualBox also works fine if manually specify allowed ISA IRQs with above.
2010-09-05 19:24:32 +00:00
rrs
27478be4a5 Fix some CLANG warnings. One clang warning is left
due to the fact that its bogus.. nam->sa_family will
not change from AF_INET6 to AF_INET (but clang
thinks it does ;-D)
2010-09-05 13:41:45 +00:00
fabient
dd461c3739 Fix invalid class removal when IAF is not the last class.
Keep IAF class with 0 PMC and change the alias in libpmc to IAP.

MFC after:	1 week
2010-09-05 13:31:14 +00:00
mav
4f9dee93a3 Initialize buffer for case of empty string. Happens only on non-refactored
platforms.
2010-09-05 06:16:04 +00:00
daichi
6f5cfa0928 Allowed unionfs to use whiteout not supporting file system as
upper layer. Until now, unionfs prevents to use that kind of
file system as upper layer. This time, I changed to allow
that kind of file system as upper layer. By this change, you
can use whiteout not supporting file system (e.g., especially
for tmpfs) as upper layer. It's very useful for combination of
tmpfs as upper layer and read only file system as lower layer.

By difinition, without whiteout support from the file system
backing the upper layer, there is no way that delete and rename
operations on lower layer objects can be done.  EOPNOTSUPP is
returned for this kind of operations as generated by VOP_WHITEOUT()
along with any others which would make modifica tions to the
lower layer, such as chmod(1).

This change is suggested by ed.

Submitted by:	ed
2010-09-05 04:58:16 +00:00
rmacklem
c42ae211aa Change the code in ncl_bioread() in the experimental NFS
client to return an error when rabp is not set, so it
behaves the same way as the regular NFS client for this
case. It does not affect NFSv4, since nfs_getcacheblk()
only fails for "intr" mounts and NFSv4 can't use the
"intr" mount option.

MFC after:	2 weeks
2010-09-05 00:47:44 +00:00
rmacklem
9c22599a5b Disable use of the NLM in the experimental NFS client, since
it will crash the kernel because it uses the nfsmount and
nfsnode structures of the regular NFS client.

MFC after:	2 weeks
2010-09-05 00:10:18 +00:00
avg
f8094d8ba9 struct device: widen type of flags and order fields to u_int
Also change int -> u_int for order parameter in device_add_child_ordered.
There should not be any ABI change as struct device is private to subr_bus.c
and the API change should be compatible.

To do: change int -> u_int for order parameter of bus_add_child method
and its implementations.  The change should also be API compatible, but
is a bit more churn.

Suggested by:	imp, jhb
MFC after:	1 week
2010-09-04 17:28:29 +00:00
bz
81b8eb659b Fix a compile problem introduced with r212008 on 32bit:
Both deadline and current_time are time_seconds (+ utc_offset())
casted to unsigned long long. No need to cast to or print as pointers.

MFC after:	4 days
2010-09-04 16:27:14 +00:00
bz
ef87b56ba4 In case of RADIX_MPATH do not leak the IN_IFADDR read lock on
early return.

MFC after:	3 days
2010-09-04 16:06:01 +00:00
yongari
da8f4a1650 Fix another bug introduced in r212109. We should unload DMA maps
only after sending the last fragment of a frame so the mbuf pointer
also should be stored in the last descriptor index.
2010-09-03 18:00:17 +00:00
mdf
62a144da37 Use a better #if guard.
Suggested by pluknet <pluknet at gmail dot com>.
2010-09-03 17:42:17 +00:00
mdf
253bb8c9c3 Style(9) fixes and eliminate the use of min(). 2010-09-03 17:42:12 +00:00
mdf
9b6269741b Fix user-space libsbuf build. Why isn't CTASSERT available to
user-space?
2010-09-03 17:23:26 +00:00
mdf
b46510221b Fix brain fart when converting an if statement into a KASSERT. 2010-09-03 16:12:39 +00:00
mdf
edfefb2af9 Use math rather than iteration when the desired sbuf size is larger than
SBUF_MAXEXTENDSIZE.
2010-09-03 16:09:17 +00:00
rdivacky
b464d39d95 Change the parameter passed to the inline assembly to u_short
as we are dealing with 16bit segment registers. Change mov
to movw.

Approved by:    rpaulo (mentor)
Reviewed by:    kib, rink
2010-09-03 14:25:17 +00:00
avg
9cb74fce5a vm_page.c: include opt_msgbuf.h for MSGBUF_SIZE use in vm_page_startup
vm_page_startup uses MSGBUF_SIZE value for adding msgbuf pages to minidump.
If opt_msgbuf.h is not included and MSGBUF_SIZE is overriden in kernel
config, then not all msgbuf pages will be dumped.  And most importantly,
struct msgbuf itself will not be included.  Thus the dump would look
corrupted/incomplete to tools like kgdb, dmesg, etc that try to access
struct msgbuf as one of the first things they do when working on a crash
dump.

MFC after:	5 days
2010-09-03 10:40:53 +00:00
avg
20ff0f906f acpi: update stale comments about order of cpu devices probing
These comments should have been updated in r203776 when the order was
changed.

Pointyhat to:	avg
MFC after:	3 days
2010-09-03 08:07:04 +00:00
grehan
ff1a91885d - Bump MAXCPU to 4. Tested on a quad G5 with both 32 and 64-bit kernels.
A make buildkernel -j4 uses ~360% CPU.
- Bracket the AP spinup printf with a mutex to avoid garbled output.
- Enable SMP by default on powerpc64.

Reviewed by:	nwhitehorn
2010-09-03 03:56:09 +00:00
yongari
bb4f975c36 Initial WOL support. NS DP8315 was tested but SiS900/SiS7016 was
not tested.
While I'm here, clean up SIOCSIFCAP handler.
2010-09-03 00:34:45 +00:00
yongari
f6865f86d4 Implement initial device suspend/resume method. 2010-09-02 22:37:13 +00:00
nwhitehorn
7a351461e0 In the case of non-sequential mappings, ofw_mapmem() could ask Open
Firmware to map a memory region with negative length, causing crashes
and Undefined Behavior. Add the appropriate check to make the behavior
defined.
2010-09-02 22:26:49 +00:00
gibbs
6833acab2d Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic.
Add the BIO_ORDERED flag for struct bio and update bio clients to use it.

The barrier semantics of bioq_insert_tail() were broken in two ways:

 o In bioq_disksort(), an added bio could be inserted at the head of
   the queue, even when a barrier was present, if the sort key for
   the new entry was less than that of the last queued barrier bio.

 o The last_offset used to generate the sort key for newly queued bios
   did not stay at the position of the barrier until either the
   barrier was de-queued, or a new barrier (which updates last_offset)
   was queued.  When a barrier is in effect, we know that the disk
   will pass through the barrier position just before the
   "blocked bios" are released, so using the barrier's offset for
   last_offset is the optimal choice.

sys/geom/sched/subr_disk.c:
sys/kern/subr_disk.c:
	o Update last_offset in bioq_insert_tail().

	o Only update last_offset in bioq_remove() if the removed bio is
	  at the head of the queue (typically due to a call via
	  bioq_takefirst()) and no barrier is active.

	o In bioq_disksort(), if we have a barrier (insert_point is non-NULL),
	  set prev to the barrier and cur to it's next element.  Now that
	  last_offset is kept at the barrier position, this change isn't
	  strictly necessary, but since we have to take a decision branch
	  anyway, it does avoid one, no-op, loop iteration in the while
	  loop that immediately follows.

	o In bioq_disksort(), bypass the normal sort for bios with the
	  BIO_ORDERED attribute and instead insert them into the queue
	  with bioq_insert_tail().  bioq_insert_tail() not only gives
	  the desired command order during insertion, but also provides
	  barrier semantics so that commands disksorted in the future
	  cannot pass the just enqueued transaction.

sys/sys/bio.h:
	Add BIO_ORDERED as bit 4 of the bio_flags field in struct bio.

sys/cam/ata/ata_da.c:
sys/cam/scsi/scsi_da.c
	Use an ordered command for SCSI/ATA-NCQ commands issued in
	response to bios with the BIO_ORDERED flag set.

sys/cam/scsi/scsi_da.c
	Use an ordered tag when issuing a synchronize cache command.

	Wrap some lines to 80 columns.

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
sys/geom/geom_io.c
	Mark bios with the BIO_FLUSH command as BIO_ORDERED.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 month
2010-09-02 19:40:28 +00:00
yongari
7ecefebc58 Enable sis(4). sis(4) should work on all architectures. 2010-09-02 18:12:54 +00:00
yongari
8d816531d8 Unlike most other controllers, NS DP83815/DP83816 controllers seem
to pad with 0xFF when it encounter short frames.  According to RFC
1042 the pad bytes should be 0x00.
Because manual padding consumes extra CPU cycles, introduce a new
tunable which controls the padding behavior. Turning this tunable
on will have driver pad manually but it's disabled by default. Users
can enable software padding by setting the following tunable to
non-zero value.

dev.sis.%d.manual_pad="1"

PR:	kern/35422 (patch not used)
2010-09-02 18:10:11 +00:00
yongari
90104df639 Fix the last endianness issue on handling station address which
prevented driver from working on big-endian machines. Also rewrite
station address programming to make it work on strict-alignment
architectures. With this change, sis(4) now works on sparc64 and
performance number looks good even though sis(4) have to apply
fixup code to align received frames on 2 bytes boundary on sparc64.
2010-09-02 17:51:41 +00:00
bz
18b40a43ee MFp4 CH=183052 183053 183258:
In protosw we define pr_protocol as short, while on the wire
  it is an uint8_t.  That way we can have "internal" protocols
  like DIVERT, SEND or gaps for modules (PROTO_SPACER).
  Switch ipproto_{un,}register to accept a short protocol number(*)
  and do an upfront check for valid boundries. With this we
  also consistently report EPROTONOSUPPORT for out of bounds
  protocols, as we did for proto == 0.  This allows a caller
  to not error for this case, which is especially important
  if we want to automatically call these from domain handling.

  (*) the functions have been without any in-tree consumer
  since the initial introducation, so this is considered save.

  Implement ip6proto_{un,}register() similarly to their legacy IP
  counter parts to allow modules to hook up dynamically.

Reviewed by:	philip, will
MFC after:	1 week
2010-09-02 17:43:44 +00:00
jkim
afcc72e272 Disable video ROM shadowing by default as I originally intended. I found
a case where video ROM for an IGP is too tightly coupled with system BIOS
to get relocated.
2010-09-02 17:22:12 +00:00
mdf
200dc21dcc Fix UP build.
MFC after:	2 weeks
2010-09-02 16:23:05 +00:00
bz
06977c291c MFp4 CH=183259:
No reason to use if_free_type() as we don't change our type.
  Just if_free() is fine.

MFC after:	3 days
2010-09-02 16:11:12 +00:00
des
bd7a5fec57 Remove the freelist, which simply duplicates some of the zone allocator's
functionality.

Submitted by:	Daniel Braniss <danny@cs.huji.ac.il>
MFC after:	3 weeks
2010-09-02 14:13:43 +00:00
emaste
788f59fdfb Remove trailing whitespace. 2010-09-02 14:05:32 +00:00
mav
e758e6c84a Add fix for SiI3114 and SiI3512 chips bug, which caused sending R_ERR in
response to DMA activate FIS under certain circumstances. This is
recommended fix from chip datasheet. If triggered, this bug most likely
cause write command timeout.

MFC after:	2 weeks
2010-09-02 12:32:29 +00:00
mav
aac03a91b1 SATA1.x SiliconImage controllers on power-on reset TFD Status register into
value 0xff. On hot-plug this value confuses ata_generic_reset() device
presence detection logic. As soon as we already know drive presence from
SATA hard reset, hint ata_generic_reset() to wait for device signature
until success or full timeout.
2010-09-02 11:18:43 +00:00
thompsa
ea2550164a Reduce the need to accesss struct usb_device by providing functions to access
the product, manufacturer and serial strings.

Submitted by:	Hans Petter Selasky
2010-09-02 04:39:45 +00:00
thompsa
e26b2a2513 Add support for power mode filtering as some USB hardware does not support
power saving.

Submitted by:	Hans Petter Selasky
2010-09-02 04:05:00 +00:00
thompsa
4d9281bcbf Change argument for usbd_get_dma_delay() from USB bus to USB device, some
embedded hardware needs to know exactly which device is in question before it
exactly can decide the required delay.

Submitted by:	Hans Petter Selasky
2010-09-02 04:01:18 +00:00
thompsa
ed73c843fd Fix setting of the rx_max and tx_max variables. If the expected buffer size is
greater than 65535 bytes then the CDC driver might not work as expected, which
is not likely with the existing USB speeds.

Submitted by:	Hans Petter Selasky
2010-09-02 03:55:08 +00:00
thompsa
4b6a0266b1 Fix UMS_BUTTON_MAX define name 2010-09-02 03:52:04 +00:00
thompsa
25f8fce8ff Fix build breakage from r212127 2010-09-02 03:50:11 +00:00
thompsa
19070e6cf7 Add GPIO programming for more PHY hardware.
Submitted by:	yongari
2010-09-02 03:47:07 +00:00
thompsa
052a146664 Add support for extra buttons on the Kensington Slimblade Trackball.
Submitted by:	Lee, Chung-Yeol
2010-09-02 03:44:56 +00:00
thompsa
6d3d5806cd Silence debug error by default.
PR:		usb/141212
Submitted by:	Hans Petter Selasky
2010-09-02 03:42:26 +00:00
thompsa
1a84f8ba2a We need to grab a node reference count to vap->iv_bss before using it as it is
possible for the node to be replaced and freed at any time by
ieee80211_sta_join1().
2010-09-02 03:28:03 +00:00
rmacklem
5621f791d2 Modify pxe.c to use the version of nfs_getrootfh() that returns
the file handle's size and was recently committed to
lib/libstand/nfs.c. This allows pxeboot to use NFSv3 and work
correcty for non-FreeBSD as well as FreeBSD NFS servers.
If built with OLD_NFSV2 defined, the old
code that predated this patch will be used.

Tested by:	danny at cs.huji.ac.il
2010-09-02 01:05:10 +00:00
yongari
1fcf36ca19 Fix stupid error in r212109 which didn't swap DMA maps. This caused
IOMMU panic on sparc64 under high TX load.
2010-09-02 00:44:05 +00:00
rmacklem
30b194f17b Modify nfs_diskless.c to recognize the environment variable
boot.nfsroot.nfshandlelen and set the diskless root fs to
use NFSv3 and this file handle length when it is set. If
this environment variable is not set, the diskless root fs
will use NFSv2 and the same defaults as before. This fixes
the problem where the diskless nfs root fs had to be on a
FreeBSD server for NFSv3 to work, because it did not know
the correct file handle length and assumed the size used
by FreeBSD. Until pxeboot and loader are replaced by ones
built from commits coming soon, boot.nfsroot.nfshandlelen
will not be set by them and the diskless root fs will use
NFSv2 unless the /etc/fstab entry has the "nfsv3" option
specified.

Tested by:	danny at cs.huji.ac.il
MFC after:	2 weeks
2010-09-01 23:51:07 +00:00
thompsa
bb06251a3b Add missing MODULE_VERSION() definitions, this resolves problems around
duplicate module loads.

PR:		usb/125736
Submitted by:	danger, mm
Reviewed by:	hselasky
2010-09-01 23:47:53 +00:00
yongari
bbb8b57633 Move sis_reset() to sis_initl(). This ensures driver starts with
known good state of controller.
2010-09-01 22:50:11 +00:00
yongari
3d51d3dedf Avoid controller reinitialization which could be triggered by
dhclient(8) or alias addresses are added.

PR:	kern/87506
2010-09-01 22:16:25 +00:00
yongari
7e669b1d63 Do not reinitialize controller whenever promiscuous mode or
allmulti is toggled. Controller does not require reinitialization.
This removes unnecessary controller reinitialization whenever
tcpdump is used.
While I'm here remove unnecessary variable reinitialization.
2010-09-01 22:08:23 +00:00
yongari
481f78e425 Report result of link state change to caller. Previously it always
returned success.
2010-09-01 21:44:36 +00:00
yongari
4d98740d79 Overhaul link state change handling. Previously sis(4) blindly
configured TX/RX MACs before getting a valid link. After that, when
link state change callback is called, it called device
initialization again to reconfigure TX/RX MACs depending on
resolved link state. This hack created several bad side effects and
it required more hacks to not collide with sis_tick callback as
well as disabling switching to currently selected media in device
initialization. Also it seems sis(4) was used to be a template
driver for long time so other drivers which was modeled after
sis(4) also should be changed.

TX/RX MACs are now reconfigured after getting a valid link. Fix for
short cable error is also applied after getting a link because it's
only valid when the resolved speed is 100Mbps.

While I'm here slightly reorganize interrupt handler such that
sis(4) always read SIS_ISR register to see whether the interrupt is
ours or not. This change removes another hack and make it possible
to nuke sis_stopped variable in softc.
2010-09-01 21:42:19 +00:00
mdf
bbc3957715 Fix a bug with sched_affinity() where it checks td_pinned of another
thread in a racy manner, which can lead to attempting to migrate a
thread that is pinned to a CPU.  Instead, have sched_switch() determine
which CPU a thread should run on if the current one is not allowed.

KASSERT in sched_bind() that the thread is not yet pinned to a CPU.

KASSERT in sched_switch() that only migratable threads or those moving
due to a sched_bind() are changing CPUs.

sched_affinity code came from jhb@.

MFC after:	2 weeks
2010-09-01 20:32:47 +00:00
yongari
4525889ed3 s/u_intXX_t/uintXX_t/g 2010-09-01 19:53:15 +00:00
mlaier
2ef34e9086 rmlock(9) two additions and one change/fix:
- add rm_try_rlock().
 - add RM_SLEEPABLE to use sx(9) as the back-end lock in order to sleep while
   holding the write lock.
 - change rm_noreadtoken to a cpu bitmask to indicate which CPUs need to go
   through the lock/unlock in order to synchronize.  As a side effect, this
   also avoids IPI to CPUs without any readers during rm_wlock.

Discussed with:		ups@, rwatson@ on arch@
Sponsored by:		Isilon Systems, Inc.
2010-09-01 19:50:03 +00:00
yongari
0b65f62811 bus_dma(9) cleanup.
o Enforce TX/RX descriptor ring alignment. NS data sheet says the
   controller needs 4 bytes alignment but use 16 to cover both SiS
   and NS controllers. I don't have SiS data sheet so I'm not sure
   what is alignment restriction of SiS controller but 16 would be
   enough because it's larger than the size of a TX/RX descriptor.
   Previously sis(4) ignored the alignment restriction.
 o Enforce RX buffer alignment, 4.
   Previously sis(4) ignored RX buffer alignment restriction.
 o Limit number of TX DMA segment to be used to 16. It seems
   controller has no restriction on number of DMA segments but
   using more than 16 looks resource waste.
 o Collapse long mbuf chains with m_collapse(9) instead of calling
   expensive m_defrag(9).
 o TX/RX side bus_dmamap_load_mbuf_sg(9) support and remove
   unnecessary callbacks.
 o Initial endianness support.
 o Prefer local alignment fixup code to m_devget(9).
 o Pre-allocate TX/RX mbuf DMA maps instead of creating/destroying
   these maps in fast TX/RX path. On non-x86 architectures, this is
   very expensive operation and there is no need to do that.
 o Add missing bus_dmamap_sync(9) in TX/RX path.
 o watchdog is now unarmed only when there are no pending frames
   on controller. Previously sis(4) blindly unarmed watchdog
   without checking the number of queued frames.
 o For efficiency, loaded DMA map is reused for error frames.
 o DMA map loading failure is now gracefully handled. Previously
   sis(4) ignored any DMA map loading errors.
 o Nuke unused macros which are not appropriate for endianness
   operation.
 o Stop embedding driver maintained structures into descriptor
   rings. Because TX/RX descriptor structures are shared between
   host and controller, frequent bus_dmamap_sync(9) operations are
   required in fast path. Embedding driver structures will increase
   the size of DMA map which in turn will slow down performance.
2010-09-01 19:33:40 +00:00
yongari
7c4a1c6ffa Nuke unnecessary return at the end of function. 2010-09-01 18:41:59 +00:00
yongari
6dbf203b91 style(9) - space after keywords. 2010-09-01 18:39:35 +00:00
yongari
888a1feebb Remove leading and trailing white spaces.
No functional changes.
2010-09-01 18:28:08 +00:00
jchandra
54fb9c3510 Updates for the RMI MIPS platform code
- set cache_coherent_dma flag in cpuinfo for XLR, this will make sure that
  BUS_DMA_COHERENT flag is handled correctly in busdma_machdep.c
- iodi.c, call device_get_name() just once
- clear RMI specific EIRR while intializing CPUs
- remove debug print in intr_machdep.c
2010-09-01 17:35:31 +00:00
emaste
a9a1b47f1d Add a sysctl knob to accept input packets on any link in a failover lagg. 2010-09-01 16:53:38 +00:00
tuexen
4d30a13146 Fix a bug which results in peer IPv4 addresses a.b.c.d with 224<=d<=239
incorrectly being detected as multicast addresses on little endian systems.

MFC after: 2 weeks
2010-09-01 16:11:26 +00:00
dim
963045b790 Use a cleaner expression to retrieve the memory size in pc98's boot2.c,
which also avoids NULL pointer arithmetic, as suggested by jhb.  The
available space goes from 11 bytes to 7.

Reviewed by:	nyan
Approved by:	rpaulo (mentor)
2010-09-01 15:24:47 +00:00
emaste
5216dea167 As long as we are going to panic anyway, there's no need to hide additional
information behind DIAGNOSTIC.
2010-09-01 13:47:11 +00:00
rpaulo
0a04223ce6 Make the /dev/dtrace/helper node have the mode 0660. This allows
programs that refuse to run as root (pgsql) to install probes when their
user is part of the wheel group.

Sponsored by:	The FreeBSD Foundation
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> PR:            If a GNATS PR is affected by the change.
> Submitted by:  If someone else sent in the change.
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M    dev/dtrace/dtrace_load.c
2010-09-01 12:08:32 +00:00
mav
78488718dc Increase device reset timeout from 10 to 15 seconds, same as in ahci(4).
Some devices found need about 10-12 seconds to spinup.
2010-09-01 06:43:41 +00:00
lulf
501297bf75 - Remove duplicate comment.
PR:		kern/148820
Submitted by:	pluknet <pluknet - at - gmail.com>
2010-09-01 05:34:17 +00:00
davidxu
be8bfd2384 rescure comments from RELENG_4. 2010-09-01 01:26:07 +00:00
yongari
f48233ae00 Remove unnecessary atomic operation in bge_poll. bge(4) always
holds a driver lock in the function entry and
memory synchronization is handled by bus_dmamap_sync(9).
2010-08-31 20:56:18 +00:00
jkim
b07460784b Make sure the interrupt entry point is within the video ROM range. We must
not change interrupt vector if it is not pointing the ROM itself.  Actually,
we just fail shadowing altogether if that is the case because the shadowed
copy will be useless for sure and POST may not be relocatable or useful.
While I'm here, fix a debugging message under bootverbose, really.  r211829
fixed one case but broke another.  Mea Culpa.
2010-08-31 20:21:52 +00:00
yongari
e68eacd3f9 bge_txeof() already checks whether it has to free transmitted mbufs
or not by comparing reported TX consumer index with saved index. So
remove unnecessary check done after freeing transmitted mbufs.
While I'm here nuke unnecessary variable initializations.
2010-08-31 19:59:18 +00:00
delphij
5ce1bc2406 For consistency, change all 'i386' and MACHINE_ARCH to x86.
Reviewed by:	jhb
MFC after:	1 week
2010-08-31 19:01:12 +00:00
yongari
105474a3a4 Handle PAE case correctly. You cannot effectively specify a 4GB
boundary in PAE case so use a 2GB boundary for PAE as suggested by
jhb.

Pointed out by:	jhb
Reviewed by:	jhb
2010-08-31 18:48:09 +00:00
dim
642b72c1ba Avoid directly manipulating a NULL pointer (which could result in
undefined behaviour) in sys/boot/pc98/boot2/boot2.c.

Reviewed by:	nyan
Approved by:	rpaulo (mentor)
2010-08-31 18:11:50 +00:00