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547d94bde3
freebsd-dev/sys/kern
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Jung-uk Kim 547d94bde3 Implement flexible BPF timestamping framework. 
- Allow setting format, resolution and accuracy of BPF time stamps per
listener.  Previously, we were only able to use microtime(9).  Now we can
set various resolutions and accuracies with ioctl(2) BIOCSTSTAMP command.
Similarly, we can get the current resolution and accuracy with BIOCGTSTAMP
command.  Document all supported options in bpf(4) and their uses.

- Introduce new time stamp 'struct bpf_ts' and header 'struct bpf_xhdr'.
The new time stamp has both 64-bit second and fractional parts.  bpf_xhdr
has this time stamp instead of 'struct timeval' for bh_tstamp.  The new
structures let us use bh_tstamp of same size on both 32-bit and 64-bit
platforms without adding additional shims for 32-bit binaries.  On 64-bit
platforms, size of BPF header does not change compared to bpf_hdr as its
members are already all 64-bit long.  On 32-bit platforms, the size may
increase by 8 bytes.  For backward compatibility, struct bpf_hdr with
struct timeval is still the default header unless new time stamp format is
explicitly requested.  However, the behaviour may change in the future and
all relevant code is wrapped around "#ifdef BURN_BRIDGES" for now.

- Add experimental support for tagging mbufs with time stamps from a lower
layer, e.g., device driver.  Currently, mbuf_tags(9) is used to tag mbufs.
The time stamps must be uptime in 'struct bintime' format as binuptime(9)
and getbinuptime(9) do.

Reviewed by:	net@
2010-06-15 19:28:44 +00:00
..
bus_if.m Virtualize pci_remap_msi_irq() call from general MSI code. It allows MSI 2010-06-14 07:10:37 +00:00
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
imgact_aout.c Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Don't leak core_buf or gzfile if doing a compressed core file and we 2010-04-30 03:13:24 +00:00
imgact_gzip.c
imgact_shell.c Decontextualize the couplet VOP_GETATTR / VOP_SETATTR as the passed thread 2008-08-28 15:23:18 +00:00
inflate.c
init_main.c Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
init_sysent.c Regenerate 2009-10-27 11:01:15 +00:00
kern_acct.c Do not use casts (int *)0 and (struct thread *)0 for the arguments of 2009-06-16 15:13:45 +00:00
kern_alq.c - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
kern_clock.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_condvar.c Remove unused variables p' and unneeded assignments of rval'. 2009-02-26 13:00:13 +00:00
kern_conf.c Add another variation of make_dev(9), make_dev_p(9), that is allowed 2010-06-12 13:22:39 +00:00
kern_cons.c Allow multiple console devices per driver without insane code duplication. 2009-08-24 10:53:30 +00:00
kern_context.c In r197963, a race with thread being selected for signal delivery 2009-10-27 10:47:58 +00:00
kern_cpu.c Free allocated sbufs before returning ENOMEM. 2010-01-08 22:58:50 +00:00
kern_cpuset.c Another nit that both I and ispell missed. 2009-10-26 18:32:06 +00:00
kern_ctf.c Add the CTF source file which gets shared with link_elf.c and link_elf_obj.c. 2008-05-23 03:04:27 +00:00
kern_descrip.c Remove one zero from the double-0. 2010-04-23 14:32:58 +00:00
kern_dtrace.c Remove code that isn't required. It actually breaks the case where KDTRACE_HOOKS 2008-06-16 04:44:29 +00:00
kern_environment.c Merge change r198561 from projects/mips to head: 2010-01-10 22:34:18 +00:00
kern_event.c Defer freeing a kevent list until after dropping kqueue locks. 2010-03-30 18:31:55 +00:00
kern_exec.c Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
kern_exit.c Let access overriding to TTYs depend on the cdev_priv, not the vnode. 2009-12-19 18:42:12 +00:00
kern_fail.c Remove extraneous semicolons, no functional changes. 2010-01-07 21:01:37 +00:00
kern_fork.c Reintroduce the r196640, after fixing the problem with my testing. 2009-09-01 11:41:51 +00:00
kern_gzio.c Do not set IO_NODELOCKED while writing to vnodes as our consumers 2010-04-30 03:10:53 +00:00
kern_idle.c Split P_NOLOAD into a per-thread flag (TDF_NOLOAD). 2009-11-03 16:46:52 +00:00
kern_intr.c Store interrupt trap frame into struct thread. It allows interrupt handler 2010-06-10 16:14:05 +00:00
kern_jail.c Declare ip6 as (struct in6_addr *) instead of (struct in_addr *). This is 2010-06-04 14:38:24 +00:00
kern_kthread.c Allow a const char * to be passed as the process name to kproc_kthread_add() 2010-05-21 17:14:36 +00:00
kern_ktr.c Change the semantics of the debug.ktr.alq_enable control so that when you 2010-04-14 21:42:29 +00:00
kern_ktrace.c - Fix several off-by-one errors when using MAXCOMLEN. The p_comm[] and 2009-10-23 15:14:54 +00:00
kern_linker.c - Unbreak build with KLD_DEBUG defined 2009-11-17 21:56:12 +00:00
kern_lock.c Fix typos. 2010-01-07 01:24:09 +00:00
kern_lockf.c In lf_iteratelocks_vnode, increment state->ls_threads around iterating 2009-06-25 18:54:56 +00:00
kern_lockstat.c Add the OpenSolaris dtrace lockstat provider. The lockstat provider 2009-05-26 20:28:22 +00:00
kern_malloc.c If we're passed garbage in malloc_init(), panic() rather than expecting 2009-06-05 09:16:52 +00:00
kern_mbuf.c Add support to the virtual memory system for configuring machine- 2009-07-12 23:31:20 +00:00
kern_mib.c Declare the kern.ngroups sysctl to be read-only, but tunable at boot for 2010-01-12 18:20:20 +00:00
kern_module.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_mtxpool.c Fix a number of style issues in the MALLOC / FREE commit. I've tried to 2008-10-23 20:26:15 +00:00
kern_mutex.c Right now, WITNESS just blindly pipes all the output to the 2010-05-11 18:24:22 +00:00
kern_ntptime.c kern_ntptime: drop a comment that became stale after r207359 2010-04-29 09:18:36 +00:00
kern_osd.c Make the rmlock(9) interface a bit more like the rwlock(9) interface: 2009-05-29 10:52:37 +00:00
kern_physio.c
kern_pmc.c Support sparsely numbered CPUs. 2008-09-22 10:37:02 +00:00
kern_poll.c Rather than fix questionable ifnet list locking in the implementation of 2009-08-15 23:07:43 +00:00
kern_priv.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
kern_proc.c Add the support for reporting the NOCOREDUMP flag from 2010-05-27 08:10:12 +00:00
kern_prot.c Only allocate the space we need before calling kern_getgroups instead 2010-01-15 07:18:46 +00:00
kern_resource.c Fix the double counting of the last process thread td_incruntime 2010-05-24 10:23:49 +00:00
kern_rmlock.c Remove extra spaces (no functional change). 2009-12-25 21:14:05 +00:00
kern_rwlock.c Print the pointer to the lock with the panic message. The previous 2010-03-24 19:21:26 +00:00
kern_sdt.c Add kernel support for the Statically Defined Trace provider. 2008-05-18 19:32:36 +00:00
kern_sema.c
kern_shutdown.c Fix compilation in the !SMP case. 2010-04-20 12:22:06 +00:00
kern_sig.c Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
kern_switch.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_sx.c Fix a sign bug that caused adaptive spinning in sx_xlock() to not work 2010-06-08 16:17:47 +00:00
kern_synch.c Add new msleep(9) flag PBDY that shall be specified together with 2009-07-14 22:52:46 +00:00
kern_syscalls.c Introduce SYSCALL_INIT_HELPER and SYSCALL32_INIT_HELPER macros and 2010-03-19 10:56:30 +00:00
kern_sysctl.c Make it possible to change the vnet sysctl variables on jails 2009-08-13 10:26:34 +00:00
kern_tc.c Implement flexible BPF timestamping framework. 2010-06-15 19:28:44 +00:00
kern_thr.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_thread.c Fix the double counting of the last process thread td_incruntime 2010-05-24 10:23:49 +00:00
kern_time.c Remove VOP_LEASE and supporting functions. This hasn't been used since 2009-04-10 10:52:19 +00:00
kern_timeout.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_umtx.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_uuid.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
kern_xxx.c Place hostnames and similar information fully under the prison system. 2009-05-29 21:27:12 +00:00
ksched.c sched_getparam was just plain broke for time-share 2010-03-03 21:46:51 +00:00
link_elf_obj.c Kernel module support for mips. 2010-02-18 05:49:52 +00:00
link_elf.c Build on Jeff Roberson's linker-set based dynamic per-CPU allocator 2009-07-14 22:48:30 +00:00
linker_if.m strict kobj signatures: linker_if fixes 2009-06-11 17:05:45 +00:00
Make.tags.inc Catch up with the disappearance of sys/dev/hfa. 2008-12-01 14:34:42 +00:00
Makefile
makesyscalls.sh Remove unused LIBCOMPAT keyword from syscalls.master. 2010-02-08 10:02:01 +00:00
md4c.c
md5c.c
p1003_1b.c Remove kernel support for M:N threading. 2008-03-12 10:12:01 +00:00
posix4_mib.c Add a facility to dynamically adjust or unconfigure p1003_1b mib. 2010-06-02 09:59:05 +00:00
sched_4bsd.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
sched_ule.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
serdev_if.m
stack_protector.c Random number generator initialization cleanup: 2009-10-20 16:36:51 +00:00
subr_acl_nfs4.c The acl_cnt field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:41:55 +00:00
subr_acl_posix1e.c The 'acl_cnt' field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:43:58 +00:00
subr_autoconf.c Prefer ANSI function definitions to K&R ones. 2009-02-03 07:52:07 +00:00
subr_blist.c Retire the MALLOC and FREE macros. They are an abomination unto style(9). 2008-10-23 15:53:51 +00:00
subr_bufring.c Switch to our preferred 2-clause BSD license. 2010-05-05 20:39:02 +00:00
subr_bus.c Add modifications of devctl_notify(9) functions that take flags. Use 2010-06-12 13:20:38 +00:00
subr_clock.c Now that all platforms use genclock, shuffle things around slightly 2008-04-22 19:38:30 +00:00
subr_devstat.c Update d_mmap() to accept vm_ooffset_t and vm_memattr_t. 2009-12-29 21:51:28 +00:00
subr_disk.c Clarify and reimplement the bioq API so that bioq_disksort() has 2009-02-13 11:36:32 +00:00
subr_eventhandler.c Split eventhandler_register() into an internal part and a wrapper function 2010-03-19 19:51:03 +00:00
subr_fattime.c
subr_firmware.c Bump up the firmware_table from 30 to 50. bwn needs more than 30, it 2010-03-07 22:37:35 +00:00
subr_hash.c Decompose the most lousy named file in sys/kern; kern_subr.c. 2010-02-21 19:53:33 +00:00
subr_hints.c
subr_kdb.c fix a few cases where a string is passed via format argument instead of 2010-06-11 19:27:21 +00:00
subr_kobj.c Use NULL in preference to 0 in pointer contexts. 2009-02-03 07:54:42 +00:00
subr_lock.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
subr_log.c Make /dev/klog and kern.msgbuf* MPSAFE. 2009-11-03 21:06:19 +00:00
subr_mbpool.c
subr_mchain.c Replaced the misleading uses of a historical artefact M_TRYWAIT with M_WAIT. 2008-03-25 09:39:02 +00:00
subr_module.c
subr_msgbuf.c
subr_param.c Document the VM detection type and sysctl a bit better. 2010-03-02 23:57:42 +00:00
subr_pcpu.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
subr_power.c
subr_prf.c Make /dev/klog and kern.msgbuf* MPSAFE. 2009-11-03 21:06:19 +00:00
subr_prof.c Use ANSI function definition for profil. 2009-02-03 07:52:36 +00:00
subr_rman.c sysctl_rman: report shared resources to devinfo 2009-05-19 14:08:21 +00:00
subr_rtc.c Clean up MI inittodr(9) and kill noop code. 2009-03-23 21:16:21 +00:00
subr_sbuf.c Switch to simplified BSD license (with phk's approval), plus whitespace 2008-08-09 10:26:21 +00:00
subr_scanf.c
subr_sglist.c This patch fixes two bugs in sglist(9) and improves robustness of the API via 2009-08-21 02:59:07 +00:00
subr_sleepqueue.c Introduce the new kernel thread called "deadlock resolver". 2010-01-09 01:46:38 +00:00
subr_smp.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
subr_stack.c Add stack_print_short() and stack_print_short_ddb() interfaces to 2009-06-24 12:06:15 +00:00
subr_taskqueue.c fix a few cases where a string is passed via format argument instead of 2010-06-11 19:27:21 +00:00
subr_trap.c Allow to use syscallname(9) outside subr_trap.c. 2010-05-26 15:39:43 +00:00
subr_turnstile.c Introduce the new kernel thread called "deadlock resolver". 2010-01-09 01:46:38 +00:00
subr_uio.c Push down the page queues into vm_page_cache(), vm_page_try_to_cache(), and 2010-05-08 20:34:01 +00:00
subr_unit.c
subr_witness.c Right now, WITNESS just blindly pipes all the output to the 2010-05-11 18:24:22 +00:00
sys_generic.c Remove PIOLLHUP from the flags used to test for to set exceptfsd 2010-05-21 10:36:29 +00:00
sys_pipe.c Update a comment: It no longer makes sense to talk about the page queues 2010-05-08 23:01:47 +00:00
sys_process.c Ignore the 'addr' argument passed to PT_STEP (it is required to be '1' 2010-05-25 21:32:37 +00:00
sys_socket.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
syscalls.c Regenerate 2009-10-27 11:01:15 +00:00
syscalls.master Remove unused LIBCOMPAT keyword from syscalls.master. 2010-02-08 10:02:01 +00:00
systrace_args.c Regenerate 2009-10-27 11:01:15 +00:00
sysv_ipc.c Move SysV IPC freebsd32 compat shims helpers from freebsd32_misc.c to 2010-03-19 11:01:51 +00:00
sysv_msg.c Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding 2010-03-19 11:04:42 +00:00
sysv_sem.c In another move to join with the age of the Fruitbat, increase SYSV 2010-06-11 09:27:33 +00:00
sysv_shm.c In another move to join with the age of the Fruitbat, increase SYSV 2010-06-11 09:27:33 +00:00
tty_compat.c Make TIOCSTI work again. 2010-01-04 20:59:52 +00:00
tty_info.c Print an extra newline when not at the first column already. 2009-05-17 16:17:48 +00:00
tty_inq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_outq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_pts.c Do not leak master pty or ptmx vnode. 2010-04-08 08:58:18 +00:00
tty_tty.c Remove unneeded Giant locking of /dev/tty. 2008-06-03 12:38:00 +00:00
tty_ttydisc.c Print backspaces after echoing an EOF. 2009-10-17 08:59:41 +00:00
tty.c Make TIOCSTI work again. 2010-01-04 20:59:52 +00:00
uipc_accf.c (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument. 2009-12-28 22:56:30 +00:00
uipc_cow.c Remove page queues locking from all sf_buf_mext()-like functions. The page 2010-05-06 17:43:41 +00:00
uipc_debug.c Add missing socket options. 2009-05-26 09:19:21 +00:00
uipc_domain.c When registering a protocol to an existing protocol domain via 2009-08-24 10:03:41 +00:00
uipc_mbuf2.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
uipc_mbuf.c Remove a redundant variable assignment. 2010-05-01 18:34:50 +00:00
uipc_mqueue.c Rename st_*timespec fields to st_*tim for POSIX 2008 compliance. 2010-03-28 13:13:22 +00:00
uipc_sem.c Add a facility to dynamically adjust or unconfigure p1003_1b mib. 2010-06-02 09:59:05 +00:00
uipc_shm.c Minimize the use of the page queues lock for synchronizing access to the 2010-06-02 15:46:37 +00:00
uipc_sockbuf.c In sbappendstream_locked() demote all incoming packet mbufs (and 2009-06-22 21:46:40 +00:00
uipc_socket.c When close() is called on a connected socket pair, SO_ISCONNECTED might be 2010-05-27 15:27:31 +00:00
uipc_syscalls.c Remove page queues locking from all sf_buf_mext()-like functions. The page 2010-05-06 17:43:41 +00:00
uipc_usrreq.c Fix build on amd64, where sysctl arg1 is a pointer. 2009-10-05 22:23:12 +00:00
vfs_acl.c The 'acl_cnt' field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:45:27 +00:00
vfs_aio.c Convert aio syscall registration to SYSCALL_INIT_HELPER. 2010-03-19 11:11:34 +00:00
vfs_bio.c Add INVARIANTS checking that numfreebufs values are sane. Also add a 2010-06-11 17:03:26 +00:00
vfs_cache.c The cache_enter(9) function shall not be called for doomed dvp. 2010-04-20 10:19:27 +00:00
vfs_cluster.c Remove a stale comment. The very same revision (r85511) that introduced 2009-06-30 19:39:17 +00:00
vfs_default.c Add VOP_ADVLOCKPURGE so that the file system is called when purging 2010-05-12 21:24:46 +00:00
vfs_export.c Set the prison in NFS anon and GSS SVC creds. 2009-09-28 18:07:16 +00:00
vfs_extattr.c Replace AUDIT_ARG() with variable argument macros with a set more more 2009-06-27 13:58:44 +00:00
vfs_hash.c In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
vfs_init.c Expand the scope of the sysctllock sx lock to protect the sysctl tree itself. 2009-02-06 14:51:32 +00:00
vfs_lookup.c Support only LOOKUP operation for "/" in relookup() because lookup() 2010-03-26 11:33:12 +00:00
vfs_mount.c - Reduce scope of vnode lock. vfs_mount_alloc() doesn't need vnode to be 2010-02-18 22:22:45 +00:00
vfs_subr.c Sometimes vnodes share the lock despite being different vnodes on 2010-06-03 10:20:08 +00:00
vfs_syscalls.c Handle a case in kern_openat() when vn_open() change file type from 2010-04-13 08:52:20 +00:00
vfs_vnops.c Avoid overflow. 2010-05-06 18:52:41 +00:00
vnode_if.src Add VOP_ADVLOCKPURGE so that the file system is called when purging 2010-05-12 21:24:46 +00:00