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* Merge the remainder of kern_vimage.c and vimage.h into vnet.c andrwatson2009-08-011-1/+0
| | | | | | | | | | vnet.h, we now use jails (rather than vimages) as the abstraction for virtualization management, and what remained was specific to virtual network stacks. Minor cleanups are done in the process, and comments updated to reflect these changes. Reviewed by: bz Approved by: re (vimage blanket)
* Build on Jeff Roberson's linker-set based dynamic per-CPU allocatorrwatson2009-07-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (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)
* Remove the old kernel RPC implementation and the NFS_LEGACYRPC option.dfr2009-06-301-1/+0
| | | | Approved by: re
* After cleaning up rt_tables from vnet.h and cleaning up opt_route.hbz2009-06-231-1/+0
| | | | | a lot of files no longer need route.h either. Garbage collect them. While here remove now unneeded vnet.h #includes as well.
* After r193232 rt_tables in vnet.h are no longer indirectly dependent onbz2009-06-081-1/+0
| | | | | | | | | the ROUTETABLES kernel option thus there is no need to include opt_route.h anymore in all consumers of vnet.h and no longer depend on it for module builds. Remove the hidden include in flowtable.h as well and leave the two explicit #includes in ip_input.c and ip_output.c.
* Remove the unmaintained University of Michigan NFSv4 client from 8.xrwatson2009-05-221-1/+0
| | | | | | | prior to 8.0-RELEASE. Rick Macklem's new and more feature-rich NFSv234 client and server are replacing it. Discussed with: rmacklem
* For all files including net/vnet.h directly include opt_route.h andbz2009-02-271-0/+2
| | | | | | | | | | | | | | net/route.h. Remove the hidden include of opt_route.h and net/route.h from net/vnet.h. We need to make sure that both opt_route.h and net/route.h are included before net/vnet.h because of the way MRT figures out the number of FIBs from the kernel option. If we do not, we end up with the default number of 1 when including net/vnet.h and array sizes are wrong. This does not change the list of files which depend on opt_route.h but we can identify them now more easily.
* Rather than using hidden includes (with cicular dependencies),bz2008-12-021-0/+2
| | | | | | | | | | | directly include only the header files needed. This reduces the unneeded spamming of various headers into lots of files. For now, this leaves us with very few modules including vnet.h and thus needing to depend on opt_route.h. Reviewed by: brooks, gnn, des, zec, imp Sponsored by: The FreeBSD Foundation
* Step 1.5 of importing the network stack virtualization infrastructurezec2008-10-021-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from the vimage project, as per plan established at devsummit 08/08: http://wiki.freebsd.org/Image/Notes200808DevSummit Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator macros, and CURVNET_SET() context setting macros, all currently resolving to NOPs. Prepare for virtualization of selected SYSCTL objects by introducing a family of SYSCTL_V_*() macros, currently resolving to their global counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT(). Move selected #defines from sys/sys/vimage.h to newly introduced header files specific to virtualized subsystems (sys/net/vnet.h, sys/netinet/vinet.h etc.). All the changes are verified to have zero functional impact at this point in time by doing MD5 comparision between pre- and post-change object files(*). (*) netipsec/keysock.c did not validate depending on compile time options. Implemented by: julian, bz, brooks, zec Reviewed by: julian, bz, brooks, kris, rwatson, ... Approved by: julian (mentor) Obtained from: //depot/projects/vimage-commit2/... X-MFC after: never Sponsored by: NLnet Foundation, The FreeBSD Foundation
* Commit step 1 of the vimage project, (network stack)bz2008-08-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | virtualization work done by Marko Zec (zec@). This is the first in a series of commits over the course of the next few weeks. Mark all uses of global variables to be virtualized with a V_ prefix. Use macros to map them back to their global names for now, so this is a NOP change only. We hope to have caught at least 85-90% of what is needed so we do not invalidate a lot of outstanding patches again. Obtained from: //depot/projects/vimage-commit2/... Reviewed by: brooks, des, ed, mav, julian, jamie, kris, rwatson, zec, ... (various people I forgot, different versions) md5 (with a bit of help) Sponsored by: NLnet Foundation, The FreeBSD Foundation X-MFC after: never V_Commit_Message_Reviewed_By: more people than the patch
* In keeping with style(9)'s recommendations on macros, use a ';'rwatson2008-03-161-1/+1
| | | | | | | | | after each SYSINIT() macro invocation. This makes a number of lightweight C parsers much happier with the FreeBSD kernel source, including cflow's prcc and lxr. MFC after: 1 month Discussed with: imp, rink
* Switch the default NFS mount mode from UDP to TCP. UDP mounts are akris2008-02-111-2/+2
| | | | | | | | | | historical relic, and are no longer appropriate for either LAN or WAN mounting. At modern (gigabit and 10 gigabit) LAN speeds packet loss from socket buffer fill events is common, and sequence numbers wrap quickly enough that data corruption is possible. TCP solves both of these problems without imposing significant overhead. MFC after: 1 month
* consolidate parsing of nfs root mount options in one placesam2006-12-061-9/+66
| | | | | | | and handle all options (some may require fixes elsewhere) Reviewed by: jhb, mohans MFC after: 1 month
* There is a consensus that ifaddr.ifa_addr should never be NULL,yar2006-06-291-2/+2
| | | | | | | | | | except in places dealing with ifaddr creation or destruction; and in such special places incomplete ifaddrs should never be linked to system-wide data structures. Therefore we can eliminate all the superfluous checks for "ifa->ifa_addr != NULL" and get ready to the system crashing honestly instead of masking possible bugs. Suggested by: glebius, jhb, ru
* Actually I wanted 'nolockd' here instead of 'lockd'.pjd2006-03-191-1/+1
| | | | MFC after: 2 days
* Unexpand LLADDR().ru2005-11-291-2/+2
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* - Use strsep() instead of strtok().pjd2005-10-061-7/+6
| | | | | | | - strdup() uses M_WAITOK, so we don't need to check it's return value against NULL. MFC after: 2 weeks
* Add boot.nfsroot.options loader tunable.pjd2005-10-061-0/+30
| | | | | | | | | | | | | | | | | It allows to specify options for NFS root file system. Currently supported options are: soft, intr, conn, lockd. I'm adding this functionality mostly for 'lockd' option, which is only honored when performing the initial mount and will be silently ignored if used while updating the mount options. This will allow to use flock(2) without the need of using varmfs or rpc.lockd and friends. Example of use: boot.nfsroot.options="intr,lockd" MFC after: 2 weeks
* While I'm here, list the new kenv (boot.netif.name) along with the others.des2005-04-261-0/+1
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* When netbooting, as soon as we've figured out which interface we booteddes2005-04-261-0/+1
| | | | from, store its name in a kenv variable.
* Include opt_bootp.h for BOOTP_NFSROOTbrian2005-01-121-0/+2
| | | | | | PR: 73183 Submitted by: Darrin Smith sdar at salseast dot org MFC after: 7 days
* Move a relic to its correct location(s): Put nfs diskless initializationphk2004-07-281-0/+14
| | | | calls with the code they call. (Yet another example of mindless copy&paste).
* Remove advertising clause from University of California Regent'simp2004-04-071-4/+0
| | | | | | | license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson
* University of Michigan's Citi NFSv4 kernel client code.alfred2003-11-141-0/+1
| | | | Submitted by: Jim Rees <rees@umich.edu>
* Replace the if_name and if_unit members of struct ifnet with new membersbrooks2003-10-311-1/+1
| | | | | | | | | | | | | if_xname, if_dname, and if_dunit. if_xname is the name of the interface and if_dname/unit are the driver name and instance. This change paves the way for interface renaming and enhanced pseudo device creation and configuration symantics. Approved By: re (in principle) Reviewed By: njl, imp Tested On: i386, amd64, sparc64 Obtained From: NetBSD (if_xname)
* Remove the magic way of configuring NFS backed swap.phk2003-08-151-2/+0
| | | | | | | | | | | | | This code dates back to the very first diskless support on FreeBSD, back when swapon(8) couldn't simply be run on a NFS backed file. Suggested replacement command sequence on the client: dd if=/dev/zero of=/swapfile bs=1k count=1 oseek=100000 swapon /swapfile rm -f /swapfile For whatever value of 100000 you want.
* Use __FBSDID().obrien2003-06-111-1/+3
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* SMP locking for ifnet list.hsu2002-12-221-1/+5
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* Moved nfs_diskless setup code from autoconf.c to nfsclient/nfs_diskless.cjake2002-09-221-0/+232
so that it is MI. Allow nfs_mountroot to return an error if the nfs_diskless struct is not valid, rather than panicing later on. Call nfs_setup_diskless() from nfs_mountroot if NFS_ROOT is defined, like bootpc_init(). Removed legacy root mount support for sparc64, and enabled NFS_ROOT by default.
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