Marko Zec 21ca7b57bd Change the curvnet variable from a global const struct vnet *, ... previously always pointing to the default vnet context, to a dynamically changing thread-local one. The currvnet context should be set on entry to networking code via CURVNET_SET() macros, and reverted to previous state via CURVNET_RESTORE(). Recursions on curvnet are permitted, though strongly discuouraged. This change should have no functional impact on nooptions VIMAGE kernel builds, where CURVNET_* macros expand to whitespace. The curthread->td_vnet (aka curvnet) variable's purpose is to be an indicator of the vnet context in which the current network-related operation takes place, in case we cannot deduce the current vnet context from any other source, such as by looking at mbuf's m->m_pkthdr.rcvif->if_vnet, sockets's so->so_vnet etc. Moreover, so far curvnet has turned out to be an invaluable consistency checking aid: it helps to catch cases when sockets, ifnets or any other vnet-aware structures may have leaked from one vnet to another. The exact placement of the CURVNET_SET() / CURVNET_RESTORE() macros was a result of an empirical iterative process, whith an aim to reduce recursions on CURVNET_SET() to a minimum, while still reducing the scope of CURVNET_SET() to networking only operations - the alternative would be calling CURVNET_SET() on each system call entry. In general, curvnet has to be set in three typicall cases: when processing socket-related requests from userspace or from within the kernel; when processing inbound traffic flowing from device drivers to upper layers of the networking stack, and when executing timer-driven networking functions. This change also introduces a DDB subcommand to show the list of all vnet instances. Approved by: julian (mentor)		2009-05-05 10:56:12 +00:00
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defines
files	Change the curvnet variable from a global const struct vnet *,	2009-05-05 10:56:12 +00:00
files.amd64	Save and restore segment registers on amd64 when entering and leaving	2009-04-01 13:09:26 +00:00
files.arm	Switch to ath hal source code. Note this removes the ath_hal	2008-12-01 16:53:01 +00:00
files.i386	Add support for Phenom (Family 10h) to cpufreq.	2009-03-28 08:54:47 +00:00
files.ia64	Add trivial implementation for the freebsd32_sysarch on ia64.	2009-04-01 19:23:07 +00:00
files.mips	Add memmove() to the kernel, making the kernel compile with Clang.	2009-02-28 16:21:25 +00:00
files.pc98	Remove IFF_NEEDSGIANT, a compatibility infrastructure introduced	2009-03-15 14:21:05 +00:00
files.powerpc	Add suppport for ISA and ISA interrupts to make the ATA	2009-04-24 03:51:11 +00:00
files.sparc64	Add memmove() to the kernel, making the kernel compile with Clang.	2009-02-28 16:21:25 +00:00
files.sun4v	Add memmove() to the kernel, making the kernel compile with Clang.	2009-02-28 16:21:25 +00:00
kern.mk	Bump down the inline limit on MIPS.	2009-03-03 18:53:47 +00:00
kern.post.mk	Always compute the root of the kernel source tree and explicitly pass it	2009-05-04 20:25:56 +00:00
kern.pre.mk	Allow the old usb stack to compile by adding the appropriate -I foo, this must	2009-02-26 20:54:43 +00:00
kmod.mk	Change over the usb kernel options to the new stack (retaining existing	2009-02-23 18:34:56 +00:00
kmod_syms.awk	Our awk does not implement the ARGIND variable, so we were attempting	2002-08-06 19:31:04 +00:00
ldscript.amd64	Provide the _start_ctors and _stop_ctors symbols. As on i386, the addresses	2004-05-29 01:09:00 +00:00
ldscript.arm	Create a non-elf pure binary version of the kernel as well.	2005-11-24 02:25:49 +00:00
ldscript.i386	Align the .ctors section correctly.	2003-12-03 07:40:03 +00:00
ldscript.ia64	Have the linker provide btext. It's used for profiling.	2004-08-25 07:43:28 +00:00
ldscript.mips	Merge from p4: add Juniper license statement.	2008-09-19 03:36:37 +00:00
ldscript.mips.cfe	Fix the CFE ldscript after the cutover to tradmips.	2008-10-13 06:07:58 +00:00
ldscript.powerpc	Avoid hardcoding the kernel link address in the linker script.	2008-02-27 00:03:23 +00:00
ldscript.sparc64	Use the same SEARCH_DIR as other platforms.	2003-06-07 18:23:50 +00:00
Makefile.amd64	Add a kernel option for amd64 to compile with the frame on the stack	2008-05-23 03:52:55 +00:00
Makefile.arm	Rename Marvell ARM CPU specific file according to r186933.	2009-01-09 10:55:33 +00:00
Makefile.i386	Revert config(8) version bump. It brings major pain for people working on	2007-05-16 17:23:54 +00:00
Makefile.ia64	Remove definition of the GCC3 variable. It was introduced in rev.	2007-06-02 21:30:39 +00:00
Makefile.mips	Merge in the mips specific configuration files and such from the	2008-04-13 06:25:43 +00:00
Makefile.pc98	Revert config(8) version bump. It brings major pain for people working on	2007-05-16 17:23:54 +00:00
Makefile.powerpc	Revert config(8) version bump. It brings major pain for people working on	2007-05-16 17:23:54 +00:00
Makefile.sparc64	Revert config(8) version bump. It brings major pain for people working on	2007-05-16 17:23:54 +00:00
Makefile.sun4v	Revert config(8) version bump. It brings major pain for people working on	2007-05-16 17:23:54 +00:00
makeLINT.mk	Implemented "nooption" and "nomakeoption" config(8) tokens.	2003-02-26 23:36:59 +00:00
makeLINT.sed	Implemented "nooption" and "nomakeoption" config(8) tokens.	2003-02-26 23:36:59 +00:00
newvers.sh	For kernel builds reduce the impact of svnversion, just scanning	2009-03-28 23:17:18 +00:00
NOTES	add uath; sort usb wireless drivers	2009-05-01 17:17:06 +00:00
options	Bring in Andrew Thompson's port of Sepherosa Ziehau's bwi driver for	2009-05-03 04:01:43 +00:00
options.amd64	Merge in support for Xen HVM on amd64 architecture.	2009-03-11 15:30:12 +00:00
options.arm	add IXP4XX_FLASH_SIZE config knob that can be used to override the default	2009-03-10 21:49:22 +00:00
options.i386	Fix AGP debugging code:	2009-02-06 20:57:10 +00:00
options.ia64	Don't forget to create opt_agp.h on ia64, which also uses agp(4).	2009-02-07 09:57:14 +00:00
options.mips	Consistently use <TAB> instead of spaces as option name and file	2009-02-06 10:30:46 +00:00
options.pc98	Fix AGP debugging code:	2009-02-06 20:57:10 +00:00
options.powerpc	Initial support for Freescale PowerQUICC III MPC85xx system-on-chip family.	2008-03-03 17:17:00 +00:00
options.sparc64	Add a driver for Schizo' Fireplane/Safari to PCI 2.1 and Tomatillo'	2008-09-28 00:07:05 +00:00
options.sun4v	Remove remnants from the sparc64 origin of this file and which are	2007-01-19 12:22:50 +00:00
systags.sh	Use a simpler way to reach the <machine> include dir, which should	2005-12-03 21:37:54 +00:00