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7f42e47a67
freebsd-skq/sys/dev
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attilio 7f42e47a67 Make the newbus subsystem Giant free by adding the new newbus sxlock. 
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.

Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.

For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.

Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.

Bump __FreeBSD_version in order to reflect the newbus lock introduction.

Reviewed by:    ed, hps, jhb, imp, mav, scottl
No answer by:   ariff, thompsa, yongari
Tested by:      pho,
                G. Trematerra <giovanni dot trematerra at gmail dot com>,
                Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by:   Yahoo! Incorporated
Approved by:	re (ksmith)
2009-08-02 14:28:40 +00:00
..
aac Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
acpi_support acpi_hp.c: 2009-07-03 21:12:37 +00:00
acpica Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
adb Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
adlink
advansys Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
ae Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
age Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
agp strict kobj signatures: fixes in agp driver 2009-06-11 17:06:07 +00:00
aha
ahb
ahci Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
aic Snip redundant assignment. 2009-05-13 22:31:25 +00:00
aic7xxx Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
alc Free allocated Rx ring dma memory/tags. 2009-07-31 09:57:42 +00:00
ale Disable Rx checksum offload until I find more clue why it breaks 2009-06-29 05:12:21 +00:00
amd Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
amdtemp Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
amr Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
an
arcmsr We no longer need to use d_thread_t, migrate to struct thread *. 2009-05-20 17:29:21 +00:00
asmc Add support for MacBook4,1. 2009-06-26 10:23:17 +00:00
asr Unmark the ASR Compat IOCTLs as BURN_BRIDGES, per scottl@ 2009-05-09 17:47:42 +00:00
ata Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
ath Fix handling of AR_RX_FILTER_BSSID: write the shadow value for AR_MISC_MODE 2009-07-21 19:23:34 +00:00
atkbdc Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
auxio
bce Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
bfe Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
bge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
bktr Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
bm Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
buslogic
bwi In bwi_newstate, only zero the bssid when we stop a STA. And only 2009-06-02 16:48:10 +00:00
cardbus Minorly improved debugging. Use the DEVPRINTF macro and report the 2009-03-13 05:31:27 +00:00
cas Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ce Use new spelling of the NG_*LEN constants. 2009-06-09 07:14:32 +00:00
cfe Last minute TTY API change: remove mutex argument from tty_alloc(). 2009-05-29 06:41:23 +00:00
cfi Move from using devclass_find_free_unit(cfi_diskclass, 0) to -1, since 2009-06-10 17:41:24 +00:00
ciss Fix an apparently harmless typo. 2009-07-20 03:59:00 +00:00
cm
cmx
coretemp
cp Use new spelling of the NG_*LEN constants. 2009-06-09 07:14:32 +00:00
cpuctl - Add support to atomically set/clear individual bits of a MSR register 2009-06-30 12:35:47 +00:00
cpufreq
cs Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ct
ctau Use new spelling of the NG_*LEN constants. 2009-06-09 07:14:32 +00:00
cx Use new spelling of the NG_*LEN constants. 2009-06-09 07:14:32 +00:00
cxgb Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
cy
dc Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
dcons Last minute TTY API change: remove mutex argument from tty_alloc(). 2009-05-29 06:41:23 +00:00
de Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
digi
dpt
drm Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
e1000 Improvement on the last change, this gives a precise 2009-07-24 21:35:52 +00:00
ed Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
eisa strict kobj signatures: fix assortment of bus_read_ivar impls 2009-06-11 17:06:58 +00:00
en
ep Add a missing break in a switch statement. 2009-05-15 21:06:28 +00:00
esp
et Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ex Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
exca __LP64__ is what's defined, not _LP64_, according to the manual (and 2009-03-09 13:29:13 +00:00
fatm
fb - Change some softc members to be unsigned where more appropriate. 2009-04-28 20:49:47 +00:00
fdc With the fdc control device disappearing some 5 years ago, it is no 2009-06-24 19:30:31 +00:00
fe Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
firewire Fix what seems to be an obvious typo preventing the body of the 2009-06-23 09:02:24 +00:00
flash - Remove nonexistent header file from includes list 2009-05-13 18:31:28 +00:00
fxp Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
gem Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
glxsb
hatm
hifn
hme Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
hptiop Use __packed from cdefs.h 2009-03-25 06:27:56 +00:00
hptmv MFp4: 2009-06-24 20:43:51 +00:00
hptrr Remove build timestamps from the following files: 2009-07-11 22:30:37 +00:00
hwpmc Fix a LOR between pmc_sx and proctree/allproc when creating a new thread 2009-06-25 20:59:37 +00:00
ic add %b formats for various registers 2009-06-21 19:17:22 +00:00
ichsmb
ichwd Rename two functions to make their purpose clearer. Add tons of comments. 2009-03-19 12:39:13 +00:00
ida
ie Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ieee488
if_ndis Fix regression in last set of commits. Submitted via e-mail and then 2009-07-20 23:21:19 +00:00
iicbus - Rename ds1672 and ds133x devices to "ds1672_rtc" and "ds133x_rtc" 2009-04-21 22:48:12 +00:00
iir Remove unused VM includes. 2009-06-03 20:25:13 +00:00
io
ipmi Import ACPICA 20090521. 2009-06-05 18:44:36 +00:00
ips Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
ipw For ic_opmode switch cases, provide a default label with a printf saying 2009-07-10 15:28:33 +00:00
iscsi/initiator Change the type of uio_resid member of struct uio from int to ssize_t. 2009-06-25 18:46:30 +00:00
isp Add 8Gb support (isp_2500). Fix a fair number of configuration and 2009-08-01 01:04:26 +00:00
ispfw Add 8Gb card firmware. Update some 2Gb and 4Gb f/w sets. 2009-08-01 00:57:34 +00:00
iwi For ic_opmode switch cases, provide a default label with a printf saying 2009-07-10 15:28:33 +00:00
iwn For ic_opmode switch cases, provide a default label with a printf saying 2009-07-10 15:28:33 +00:00
ixgb Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ixgbe Improvement on the last change, this gives a precise 2009-07-24 21:35:52 +00:00
jme Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
joy Use si_drv1 to store joy(4)'s softc. 2009-04-14 11:23:09 +00:00
kbd Move buffer management into kbd and kbdmux drivers. 2009-06-05 15:19:05 +00:00
kbdmux Use proper types in kbdmux_kbd_getc(): 2009-06-08 20:24:29 +00:00
ksyms strict kobj signatures: linker_if fixes 2009-06-11 17:05:45 +00:00
le Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
led
lge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
lmc Unbreak build. 2009-05-30 18:39:22 +00:00
malo Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
mc146818
mca strict kobj signatures: fix assortment of bus_read_ivar impls 2009-06-11 17:06:58 +00:00
mcd
md Implement global and per-uid accounting of the anonymous memory. Add 2009-06-23 20:45:22 +00:00
mem
mfi Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
mge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
mii - Also probe DP83865, which is an is an ultra low power version 2009-06-13 23:27:04 +00:00
mk48txx
mlx Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
mly Convert mlx(4) and mly(4) to si_drv1 instead of dev2unit(). 2009-04-18 07:36:38 +00:00
mmc Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
mn
mpt Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
mse Make mse(4) use si_drv1, instead of using unit numbers. 2009-04-20 15:15:24 +00:00
msk Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
mwl Implementation of the upcoming Wireless Mesh standard, 802.11s, on the 2009-07-11 15:02:45 +00:00
mxge mxge's tunable hw.mxge.rss_hash_type cannot be set from the 2009-07-22 11:57:34 +00:00
my Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ncv strict kobj sigs: fix assortment of device_detach and device_shutdown impls 2009-06-11 17:14:28 +00:00
nfe Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
nge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
nmdm - Remove an unnecessary memory barrier from an atomic op. 2009-06-09 13:33:03 +00:00
nsp strict kobj sigs: fix assortment of device_detach and device_shutdown impls 2009-06-11 17:14:28 +00:00
null
nve Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
nvram
nxge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
ofw Missed style fixes. 2009-06-14 00:15:26 +00:00
patm
pbio
pccard Another PC Card that needs the CIS strings for the Surecom EP-427X, 2009-04-24 17:27:45 +00:00
pccbb Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
pcf strict kobj signatures: fix iicbus_write impl in dev/pcf 2009-06-11 17:15:44 +00:00
pci Add a MD __PCI_BAR_ZERO_VALID which denotes that BARs containing 0 2009-07-21 19:06:39 +00:00
pcn Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
pdq Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
powermac_nvram Use si_drv1 instead of dev2unit() in powermac_nvram. 2009-04-14 13:18:39 +00:00
ppbus Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
ppc
pst Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
puc Make puc(4) aware of this 2 port serial card based on NetMos 9835: 2009-06-20 00:04:48 +00:00
quicc
ral Implementation of the upcoming Wireless Mesh standard, 802.11s, on the 2009-07-11 15:02:45 +00:00
random There is rubbish here 2009-05-25 22:50:11 +00:00
rc
re Adding hardware ID for RTL810x PCIe found on HP Pavilion DV2-1022AX. 2009-07-14 04:35:13 +00:00
rndtest
rp Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
safe
sbni
scc
scd
sdhci
sec Fix Book-E/MPC85XX build. Some prototypes were wrong and got revealed with 2009-06-13 08:57:04 +00:00
sf Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
si Last minute TTY API change: remove mutex argument from tty_alloc(). 2009-05-29 06:41:23 +00:00
siba
siis Add siis CAM driver for SiliconImage SiI3124/3132/3531 SATA2 controllers. 2009-07-21 12:32:46 +00:00
sio remove now-redunant cardbus attachment. 2009-03-09 13:23:54 +00:00
sis Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
sk Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
smbus Make generic_intr routines match prototype. 2009-03-09 13:30:00 +00:00
smc strict kobj signatures: fix assortment of miibus_writereg impls 2009-06-11 17:14:54 +00:00
sn Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
snc Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
snp Keep this line shorter than 80 columns. 2009-05-13 19:29:50 +00:00
sound Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
speaker Change the type of uio_resid member of struct uio from int to ssize_t. 2009-06-25 18:46:30 +00:00
spibus strict kobj signatures: fix assortment of bus_read_ivar impls 2009-06-11 17:06:58 +00:00
ste Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
stg strict kobj sigs: fix assortment of device_detach and device_shutdown impls 2009-06-11 17:14:28 +00:00
stge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
streams
sym
syscons Small fixes to Unicode handling: 2009-06-16 14:55:13 +00:00
tdfx Let tdfx(4) use si_drv1 instead of using dev2unit(). 2009-04-14 11:57:26 +00:00
ti Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
tl Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
trm Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
tsec Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
twa We no longer need to use d_thread_t, migrate to struct thread *. 2009-05-20 17:29:21 +00:00
twe Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
tx Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
txp Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
uart Fix serial console on Apple Xserve G5 by falling back to input-device-1 2009-07-23 12:51:27 +00:00
ubsec strict kobj sigs: fix assortment of device_detach and device_shutdown impls 2009-06-11 17:14:28 +00:00
usb Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
utopia
vge Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
vkbd
vr Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
vx
watchdog
wb Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
wds
wi Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
wl Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
wpi For ic_opmode switch cases, provide a default label with a printf saying 2009-07-10 15:28:33 +00:00
xe Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +00:00
xen Make the newbus subsystem Giant free by adding the new newbus sxlock. 2009-08-02 14:28:40 +00:00
xl Make xl(4) build with Tx checksum offload. 2009-07-09 01:58:59 +00:00