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eddfbb763d
freebsd-dev/sys/dev
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Robert Watson eddfbb763d Build on Jeff Roberson's linker-set based dynamic per-CPU allocator 
(DPCPU), as suggested by Peter Wemm, and implement a new per-virtual
network stack memory allocator.  Modify vnet to use the allocator
instead of monolithic global container structures (vinet, ...).  This
change solves many binary compatibility problems associated with
VIMAGE, and restores ELF symbols for virtualized global variables.

Each virtualized global variable exists as a "reference copy", and also
once per virtual network stack.  Virtualized global variables are
tagged at compile-time, placing the in a special linker set, which is
loaded into a contiguous region of kernel memory.  Virtualized global
variables in the base kernel are linked as normal, but those in modules
are copied and relocated to a reserved portion of the kernel's vnet
region with the help of a the kernel linker.

Virtualized global variables exist in per-vnet memory set up when the
network stack instance is created, and are initialized statically from
the reference copy.  Run-time access occurs via an accessor macro, which
converts from the current vnet and requested symbol to a per-vnet
address.  When "options VIMAGE" is not compiled into the kernel, normal
global ELF symbols will be used instead and indirection is avoided.

This change restores static initialization for network stack global
variables, restores support for non-global symbols and types, eliminates
the need for many subsystem constructors, eliminates large per-subsystem
structures that caused many binary compatibility issues both for
monitoring applications (netstat) and kernel modules, removes the
per-function INIT_VNET_*() macros throughout the stack, eliminates the
need for vnet_symmap ksym(2) munging, and eliminates duplicate
definitions of virtualized globals under VIMAGE_GLOBALS.

Bump __FreeBSD_version and update UPDATING.

Portions submitted by:  bz
Reviewed by:            bz, zec
Discussed with:         gnn, jamie, jeff, jhb, julian, sam
Suggested by:           peter
Approved by:            re (kensmith)
2009-07-14 22:48:30 +00:00
..
aac Get correct maxio from the controller and drop the tunable. 2009-07-11 08:10:18 +00:00
acpi_support acpi_hp.c: 2009-07-03 21:12:37 +00:00
acpica Match PCI Express root bridge _HID directly instead of 2009-07-13 21:36:31 +00:00
adb
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 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +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
amr We no longer need to use d_thread_t, migrate to struct thread *. 2009-05-20 17:29:21 +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 Fix Marvel SATA controllers operation, broken by rev. 188765, 2009-07-13 18:01:49 +00:00
ath Fix something bogus deletion that got it during mesh commit. 2009-07-11 16:02:06 +00:00
atkbdc Prevent atkbd(4) interrupt handler from calling keyboard callback function 2009-04-17 00:30:56 +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 Unbreak bktr(4). 2009-05-26 12:01:37 +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
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 Revert the CISS driver to 64K i/o, the previous change was in error and 2009-07-13 20:19:29 +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 Build on Jeff Roberson's linker-set based dynamic per-CPU allocator 2009-07-14 22:48:30 +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 Add support for Radeon HD 4770 (RV740) chips. 2009-07-09 16:39:28 +00:00
e1000 Re-add opt_inet.h, as we did in r193862 and lost yet again. 2009-07-14 19:32:36 +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
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
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
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 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +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
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 Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
ispfw
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 Multiqueue RX is not correctly enabled on the new 82599 2009-07-01 16:13:01 +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 Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +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 Separate the parallel scsi knowledge out of the core of the XPT, and 2009-07-10 08:18:08 +00:00
mly Convert mlx(4) and mly(4) to si_drv1 instead of dev2unit(). 2009-04-18 07:36:38 +00:00
mmc
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 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/ 2009-06-26 11:45:06 +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 Revert r190676,190677 2009-04-10 04:08:34 +00:00
pcf strict kobj signatures: fix iicbus_write impl in dev/pcf 2009-06-11 17:15:44 +00:00
pci Enable MSI in the MSI capability registers any time that the first message 2009-06-22 20:08:06 +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
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 Last minute TTY API change: remove mutex argument from tty_alloc(). 2009-05-29 06:41:23 +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
sio
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
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 Disable MSI by default for nVidia MCP55 chipset. 2009-07-14 19:18:31 +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 We no longer need to use d_thread_t, migrate to struct thread *. 2009-05-20 17:29:21 +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 Move the memory layout definitions and logic from mvreg.h to mvwin.h 2009-06-12 20:00:38 +00:00
ubsec strict kobj sigs: fix assortment of device_detach and device_shutdown impls 2009-06-11 17:14:28 +00:00
usb MFp4: 2009-07-12 16:46:43 +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 update backend_changed to reflect .m prototype 2009-06-13 21:55:08 +00:00
xl Make xl(4) build with Tx checksum offload. 2009-07-09 01:58:59 +00:00