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andre e66ed06df4 Add soreceive_stream(), an optimized version of soreceive() for 
stream (TCP) sockets.

It is functionally identical to generic soreceive() but has a
number stream specific optimizations:
o does only one sockbuf unlock/lock per receive independent of
  the length of data to be moved into the uio compared to
  soreceive() which unlocks/locks per *mbuf*.
o uses m_mbuftouio() instead of its own copy(out) variant.
o much more compact code flow as a large number of special
  cases is removed.
o much improved reability.

It offers significantly reduced CPU usage and lock contention
when receiving fast TCP streams.  Additional gains are obtained
when the receiving application is using SO_RCVLOWAT to batch up
some data before a read (and wakeup) is done.

This function was written by "reverse engineering" and is not
just a stripped down variant of soreceive().

It is not yet enabled by default on TCP sockets.  Instead it is
commented out in the protocol initialization in tcp_usrreq.c
until more widespread testing has been done.

Testers, especially with 10GigE gear, are welcome.

MFP4:	r164817 //depot/user/andre/soreceive_stream/
2009-06-22 23:08:05 +00:00
..
_bus_dma.h
Break out typedefs from bus_dma.h to _bus_dma.h so that we can get the
2006-09-03 00:26:17 +00:00
_iovec.h
…
_lock.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_lockmgr.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_mutex.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_null.h
*sigh*, while the kernel built, userland C did not. Revert the previous
2009-05-11 21:13:00 +00:00
_pthreadtypes.h
Fix the visibility of several prototypes. Also move pthread_kill() and
2009-03-14 20:10:14 +00:00
_rmlock.h
Initial checkin for rmlock (read mostly lock) a multi reader single writer
2007-11-08 14:47:55 +00:00
_rwlock.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_semaphore.h
…
_sigset.h
…
_stack.h
Optimize lockmgr in order to get rid of the pool mutex interlock, of the
2008-04-06 20:08:51 +00:00
_sx.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_task.h
revert changes accidentally included in last commit
2008-07-18 06:22:57 +00:00
_timespec.h
…
_timeval.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
_types.h
Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
2008-10-28 13:44:11 +00:00
aac_ioctl.h
Implement FSACTL_LNX_GET_FEATURES and FSACTL_GET_FEATURES ioctls. RAID
2008-03-28 19:07:25 +00:00
acct.h
Increase precision of time values in the process accounting
2007-05-22 06:51:38 +00:00
acl.h
Add new #defines neccessary to support NFSv4 ACLs.
2009-05-23 17:09:47 +00:00
agpio.h
…
aio.h
Namespace: aio_waitcomplete() is a BSD extension.
2009-03-14 19:17:00 +00:00
alq.h
…
apm.h
Define APM_ENT_NAMELEN and APM_ENT_TYPELEN for general use.
2008-06-12 04:37:37 +00:00
assym.h
…
ata.h
Add experimental support for SATA Port Multipliers
2008-04-10 13:05:05 +00:00
bio.h
As discussed in the devsummit, introduce two fields in the
2009-06-11 09:55:26 +00:00
bitstring.h
…
blist.h
add malloc flag to blist so that it can be used in ithread context
2008-05-05 19:48:54 +00:00
buf_ring.h
- add drbr routines for accessing #qentries and conditionally dequeueing
2009-06-09 19:19:16 +00:00
buf.h
nfs_write() can use the recently introduced vfs_bio_set_valid() instead of
2009-05-31 20:18:02 +00:00
bufobj.h
Remove the struct thread unuseful argument from bufobj interface.
2008-10-10 21:23:50 +00:00
bus_dma.h
When bouncing pages, allow a new option to preserve the intra-page
2009-02-08 22:54:58 +00:00
bus.h
As discussed on arch@, restire
2009-06-09 23:24:04 +00:00
callout.h
add callout_schedule; besides being useful it also improves
2008-08-02 17:42:38 +00:00
cdefs.h
Revert my change; reintroduce __gnu89_inline.
2009-06-08 18:23:43 +00:00
cdio.h
…
cdrio.h
…
cfictl.h
Add support for frobbing Intel StrataFlash Protection Registers:
2009-02-05 18:12:07 +00:00
chio.h
…
clock.h
Now that all platforms use genclock, shuffle things around slightly
2008-04-22 19:38:30 +00:00
condvar.h
- Pass the priority argument from *sleep() into sleepq and down into
2008-03-12 06:31:06 +00:00
conf.h
Add an extension to the character device interface that allows character
2009-06-01 21:32:52 +00:00
cons.h
Remove unused consdev structure fields.
2008-10-27 11:45:31 +00:00
consio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
copyright.h
Bump the odometer of the years, this time a bit early for 7.1R.
2008-12-30 04:48:59 +00:00
cpu.h
Provide a new CPU device driver ivar to report the nominal speed of the
2009-05-31 08:59:15 +00:00
cpuctl.h
- Add cpuctl(4) pseudo-device driver to provide access to some low-level
2008-08-08 16:26:53 +00:00
cpuset.h
Add hierarchical jails. A jail may further virtualize its environment
2009-05-27 14:11:23 +00:00
ctype.h
…
dataacq.h
…
device_port.h
…
devicestat.h
…
digiio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
dir.h
…
dirent.h
o Re-word a comment.
2006-08-16 09:34:56 +00:00
disk.h
Provide compatibility symlink for logical partitions:
2009-02-20 04:48:40 +00:00
disklabel.h
Initial storage functionality for U-Boot support library.
2008-11-19 17:34:28 +00:00
diskmbr.h
…
diskpc98.h
Move the PC98_[MS]ID_* defines from g_part_pc98.c to diskpc98.h.
2009-03-11 13:15:42 +00:00
dkstat.h
…
domain.h
Introduce an infrastructure for dismantling vnet instances.
2009-06-08 17:15:40 +00:00
dtrace_bsd.h
Add DTrace probes to the NFS access and attribute caches. Access cache
2009-03-24 17:14:34 +00:00
dvdio.h
…
elf32.h
Convert types 'Elf{32,64}_Nhdr' into aliases of the generic 'Elf_Note'
2006-10-17 05:43:30 +00:00
elf64.h
style(9)
2009-01-01 02:08:56 +00:00
elf_common.h
Added DT_GNU_HASH entry for GNU-style hash table.
2009-04-10 21:24:18 +00:00
elf_generic.h
style(9)
2009-01-01 02:08:56 +00:00
elf.h
Remove _SOLARIS_C_SOURCE compatibility definitions. Unfortunately the
2007-11-28 21:54:46 +00:00
endian.h
…
errno.h
…
eui64.h
…
event.h
Adapt vfs kqfilter to the shared vnode lock used by zfs write vop. Use
2009-06-10 20:59:32 +00:00
eventhandler.h
rev bpf attach/detach event api to include the dlt
2009-05-25 16:34:35 +00:00
eventvar.h
…
exec.h
…
extattr.h
Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
2008-10-28 13:44:11 +00:00
fail.h
fail(9) support:
2009-05-27 16:36:54 +00:00
fbio.h
…
fcntl.h
Move definitions of AT_* constants from the middle of the open(2) flags
2009-06-22 10:11:35 +00:00
fdcio.h
…
file.h
style(9)
2009-01-01 02:29:17 +00:00
filedesc.h
- Implement a lockless file descriptor lookup algorithm in
2009-05-14 03:24:22 +00:00
filio.h
Implement SEEK_DATA and SEEK_HOLE extensions to lseek(2) as found in
2007-04-05 21:10:53 +00:00
firmware.h
Cleanup and document the implementation of firmware(9) based on
2007-02-15 17:21:31 +00:00
fnv_hash.h
…
gmon.h
Move the PC_TO_I() and KCOUNT() macros so they aren't GUPROF specific
2006-03-29 18:17:03 +00:00
gpt.h
Add a couple more Apple GPT entries and NetBSD GPT entries.
2008-09-05 17:45:24 +00:00
hash.h
Fix a compiler warning so hash.h can be included in the kernel. This changes
2007-04-09 22:55:14 +00:00
iconv.h
Split tolower/toupper code from usual xlat16 kiconv table, and make it
2009-06-22 17:09:46 +00:00
imgact_aout.h
…
imgact_elf.h
Fix KBI breakage by r190520 which affects older linux.ko binaries:
2009-04-05 09:27:19 +00:00
imgact.h
Supply AT_EXECPATH auxinfo entry to the interpreter, both for native and
2009-03-17 12:53:28 +00:00
inflate.h
…
interrupt.h
Tweak some comments.
2009-05-20 17:59:49 +00:00
ioccom.h
Protect _IOC's 'len' and 'inout' parameters so that _IOC can be used in
2008-08-28 18:29:59 +00:00
ioctl_compat.h
Add support for old TTY ioctls to kdump.
2009-05-09 15:09:40 +00:00
ioctl.h
Clean up <sys/ioctl.h>.
2009-05-09 19:01:24 +00:00
ipc.h
Make sure we restrict Linux only IPC calls from being executed
2008-02-12 20:55:03 +00:00
ipmi.h
Update the ipmi(4) driver:
2006-09-22 22:11:29 +00:00
jail.h
Manage vnets via the jail system. If a jail is given the boolean
2009-06-15 18:59:29 +00:00
joystick.h
…
kbio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
kdb.h
DTrace can enter the debugger from a probe. Add a WHY definition for this.
2008-05-23 04:00:44 +00:00
kenv.h
…
kernel.h
Place hostnames and similar information fully under the prison system.
2009-05-29 21:27:12 +00:00
kerneldump.h
PowerPC, meet kernel core dumps. The support is based
2009-04-04 02:12:37 +00:00
kobj.h
KOBJMETHOD: throw the switch on kobj method signature checking
2009-06-12 09:05:23 +00:00
ksem.h
Rework the lifetime management of the kernel implementation of POSIX
2008-06-27 05:39:04 +00:00
ksyms.h
Add the ksyms(4) pseudo driver. The ksyms driver allows a process to
2009-05-26 21:39:09 +00:00
kthread.h
kthread_exit needs no stinkin argument.
2007-10-26 17:03:22 +00:00
ktr.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
ktrace.h
Add a new type of KTRACE record for sysctl(3) invocations. It uses the
2009-03-11 21:48:36 +00:00
libkern.h
This commit fixes the issue with alias_sctp.c. No
2009-02-14 11:34:57 +00:00
limits.h
…
link_aout.h
…
link_elf.h
style(9)
2009-01-01 02:11:01 +00:00
linker_set.h
…
linker.h
Add hooks for the Compact C Type Format (CTF) data to be attached to
2008-05-23 00:49:39 +00:00
lock_profile.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
lock.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
lockf.h
The advisory lock may be activated or activated and removed during the
2009-05-24 12:39:38 +00:00
lockmgr.h
Introduce support for adaptive spinning in lockmgr.
2009-06-17 01:55:42 +00:00
lockstat.h
Add the OpenSolaris dtrace lockstat provider. The lockstat provider
2009-05-26 20:28:22 +00:00
mac.h
Update comments in mac.h.
2007-02-06 16:24:57 +00:00
malloc.h
Garbage collect now-unused struct malloc_type fields, bump __FreeBSD_version
2009-04-19 11:20:57 +00:00
mbpool.h
…
mbuf.h
Add m_mbuftouio() helper function to copy(out) an arbitrary
2009-06-22 22:20:38 +00:00
mchain.h
…
md4.h
…
md5.h
Add definitions for MD5_BLOCK_LENGTH, MD5_DIGEST_LENGTH and
2006-03-15 19:47:12 +00:00
mdioctl.h
…
memrange.h
Initial suspend/resume support for amd64.
2009-03-17 00:48:11 +00:00
mman.h
Add support to mincore for detecting whether a page is part of a
2008-03-28 04:29:27 +00:00
module.h
- Invoke MOD_QUIESCE on all modules in a linker file (kld) before
2008-12-05 13:40:25 +00:00
mount.h
Simply shared vnode locking and extend it to also include fsync.
2009-06-08 21:23:54 +00:00
mouse.h
Spell "Kensington Thinking Mouse" correctly.
2006-12-18 18:48:28 +00:00
mpt_ioctl.h
Add a new personality to mpt(4) devices to allow userland applications to
2008-05-06 20:49:53 +00:00
mqueue.h
…
msg.h
…
msgbuf.h
up the default msgbuf limit to 64k.. a verbose boot on i386 on modern
2006-09-03 00:33:19 +00:00
mtio.h
…
mutex.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
namei.h
Let vfs_lookup() return ENOTDIR if the path has a trailing slash and
2009-05-29 10:02:44 +00:00
nlist_aout.h
…
osd.h
Introduce the extensible jail framework, using the same "name=value"
2009-04-29 21:14:15 +00:00
param.h
Move virtualization of routing related variables into their own
2009-06-22 17:48:16 +00:00
pciio.h
- Add a new ioctl to /dev/pci to fetch details on an individual BAR of a
2009-02-02 22:04:40 +00:00
pcpu.h
Trim old remnants of per-CPU KTR buffers.
2009-06-05 14:07:00 +00:00
pioctl.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
pipe.h
- Make maxpipekva a signed long rather than an unsigned long as overflow
2009-03-10 21:28:43 +00:00
pmc.h
Trim an obsolete comment.
2009-06-03 17:19:12 +00:00
pmckern.h
Support sparsely numbered CPUs.
2008-09-22 10:37:02 +00:00
pmclog.h
- Add support for PMCs in Intel CPUs of Family 6, model 0xE (Core Solo
2008-11-27 09:00:47 +00:00
poll.h
…
posix4.h
Update #includes list.
2006-11-11 16:19:12 +00:00
power.h
…
priority.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
priv.h
Add placeholder to prevent reuse of privilege 254.
2009-06-20 16:39:25 +00:00
proc.h
In struct thread, fields td_vnet and td_vnet_lpush may only be accessed
2009-06-11 17:03:15 +00:00
procfs.h
Widen psaddr_t from uintptr_t to uint64_t. This results in an
2008-09-14 16:52:42 +00:00
protosw.h
Introduce an infrastructure for dismantling vnet instances.
2009-06-08 17:15:40 +00:00
ptio.h
…
ptrace.h
Add members pl_sigmask and pl_siglist into ptrace_lwpinfo to get lwp's
2006-02-06 09:41:56 +00:00
queue.h
Rename the queue macros I introduced last year.
2009-05-27 19:28:04 +00:00
random.h
…
reboot.h
…
refcount.h
Remove debugging cruft.
2008-07-23 16:44:20 +00:00
regression.h
…
resource.h
Don't forget to add "npts" to rlimit_ident[] as well.
2008-12-11 18:32:05 +00:00
resourcevar.h
Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
2008-08-20 08:31:58 +00:00
rman.h
Add a convenience function rman_init_from_resource for initializing
2006-06-12 04:06:21 +00:00
rmlock.h
Make the rmlock(9) interface a bit more like the rwlock(9) interface:
2009-05-29 10:52:37 +00:00
rtprio.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
runq.h
- Restore runq to manipulating threads directly by putting runq links and
2008-03-20 05:51:16 +00:00
rwlock.h
Add the OpenSolaris dtrace lockstat provider. The lockstat provider
2009-05-26 20:28:22 +00:00
sbuf.h
Add sbuf_new_auto as a shortcut for the very common case of creating a
2008-08-09 11:14:05 +00:00
sched.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
sdt.h
Adding missing ";"'s required by some SDT_PROBE_DEFINEx() macros.
2009-03-03 18:23:16 +00:00
select.h
Fix FD_ISSET() on LP64 platforms. The FD_ISSET() function/macro is
2006-01-06 22:12:46 +00:00
selinfo.h
Refactor select to reduce contention and hide internal implementation
2007-12-16 06:21:20 +00:00
sem.h
Namespace: semsys() and shmsys() aren't standard.
2009-03-14 19:06:52 +00:00
sema.h
…
semaphore.h
Change SEM_VALUE_MAX (maximum value of a POSIX semaphore) from UINT_MAX
2008-06-26 13:51:25 +00:00
serial.h
o Don't make the SER_INT_* defines visible to userland. They
2006-03-30 17:24:42 +00:00
sf_buf.h
…
sglist.h
Add a simple API to manage scatter/gather lists of phyiscal addresses.
2009-06-01 20:35:39 +00:00
shm.h
Namespace: semsys() and shmsys() aren't standard.
2009-03-14 19:06:52 +00:00
sigio.h
…
signal.h
Correct the visibility macro surrounding SIGSYS.
2008-01-19 21:41:31 +00:00
signalvar.h
Fix for the panic("vm_thread_new: kstack allocation failed") and
2007-11-05 11:36:16 +00:00
sleepqueue.h
Document the new return values for sleepq_abort(), sleepq_broadcast(), and
2008-08-07 20:47:01 +00:00
smp.h
- Remove the bogus idle thread state code. This may have a race in it
2009-04-29 03:15:43 +00:00
snoop.h
…
sockbuf.h
Rework socket upcalls to close some races with setup/teardown of upcalls.
2009-06-01 21:17:03 +00:00
socket.h
Add prototype defination for setfib(2) to sys/socket.h.
2008-08-08 22:40:04 +00:00
socketvar.h
Add soreceive_stream(), an optimized version of soreceive() for
2009-06-22 23:08:05 +00:00
sockio.h
Manage vnets via the jail system. If a jail is given the boolean
2009-06-15 18:59:29 +00:00
sockopt.h
Factor sockbuf, sockopt, and sockstate out of socketvar.h in to separate headers.
2008-07-29 07:45:05 +00:00
sockstate.h
Factor sockbuf, sockopt, and sockstate out of socketvar.h in to separate headers.
2008-07-29 07:45:05 +00:00
soundcard.h
Move machine dependant AFMT_* definition from sound.h
2009-06-10 03:56:24 +00:00
stack.h
Optimize lockmgr in order to get rid of the pool mutex interlock, of the
2008-04-06 20:08:51 +00:00
stat.h
Various namespace cleanups, including exposing fchmod() and fchmodat()
2009-03-14 19:11:08 +00:00
statvfs.h
…
stddef.h
…
stdint.h
…
sun_disklabel.h
…
sx.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
syscall.h
Regen.
2009-06-22 20:24:03 +00:00
syscall.mk
Regen.
2009-06-22 20:24:03 +00:00
syscallsubr.h
Split native socketpair() syscall onto kern_socketpair() which should
2009-05-31 12:12:38 +00:00
sysctl.h
Get vnets from creds instead of threads where they're available, and from
2009-06-15 19:01:53 +00:00
sysent.h
Add 'sy_flags', a currently unused per-syscall entry flags field that will
2009-06-01 16:13:06 +00:00
syslimits.h
Rework the credential code to support larger values of NGROUPS and
2009-06-19 17:10:35 +00:00
syslog.h
Namespace: vsyslog() is a BSD extension.
2009-03-14 19:07:25 +00:00
sysproto.h
Regen.
2009-06-22 20:24:03 +00:00
systm.h
Add hierarchical jails. A jail may further virtualize its environment
2009-05-27 14:11:23 +00:00
taskqueue.h
revert changes accidentally included in last commit
2008-07-18 06:22:57 +00:00
termios.h
Add tcsetsid(3).
2009-05-07 13:49:48 +00:00
thr.h
Add thr_kill2 syscall which sends a signal to a thread in another process.
2007-08-16 05:26:42 +00:00
tiio.h
…
time.h
Namespace: adjtime(), futimes(), futimesat(), lutimes(), and settimeofday()
2009-03-14 19:15:13 +00:00
timeb.h
…
timepps.h
…
timers.h
s/timer_t/int/g
2006-03-01 06:48:31 +00:00
times.h
…
timespec.h
…
timetc.h
…
timex.h
…
tree.h
In sys/tree.h:
2009-03-01 04:57:23 +00:00
tty.h
Last minute TTY API change: remove mutex argument from tty_alloc().
2009-05-29 06:41:23 +00:00
ttycom.h
Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
2008-08-20 08:31:58 +00:00
ttydefaults.h
Reduce the default baud rate of PTY's to 9600.
2008-11-08 20:40:39 +00:00
ttydevsw.h
Introduce a hooks layer for the MPSAFE TTY layer.
2008-09-22 19:25:14 +00:00
ttydisc.h
Introduce a hooks layer for the MPSAFE TTY layer.
2008-09-22 19:25:14 +00:00
ttyhook.h
Change ttyhook_register() second argument from thread to process pointer.
2008-12-13 21:17:46 +00:00
ttyqueue.h
Slightly improve the design of the TTY buffer.
2009-02-03 19:58:28 +00:00
turnstile.h
Commit 3/14 of sched_lock decomposition.
2007-06-04 23:51:44 +00:00
types.h
Last step of splitting up minor and unit numbers: remove minor().
2009-01-28 17:57:16 +00:00
ucontext.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
ucred.h
Rework the credential code to support larger values of NGROUPS and
2009-06-19 17:10:35 +00:00
uio.h
Namespace: preadv() and pwritev() are extensions.
2009-03-14 19:07:58 +00:00
umtx.h
Add two commands to _umtx_op system call to allow a simple mutex to be
2008-06-24 07:32:12 +00:00
un.h
Now that portalfs doesn't directly invoke uipc_connect2(), make it a
2008-10-06 18:43:11 +00:00
unistd.h
Fix a typo in a comment.
2009-01-31 10:04:36 +00:00
unpcb.h
Remove explicit locking of struct file.
2007-12-30 01:42:15 +00:00
user.h
Rework the credential code to support larger values of NGROUPS and
2009-06-19 17:10:35 +00:00
utsname.h
…
uuid.h
…
vimage.h
V_irtualize flowtable state.
2009-06-22 21:19:24 +00:00
vmmeter.h
Correct the description of v_cache_count. Eliminate an unused function.
2008-07-19 22:35:13 +00:00
vnode.h
Add explicit struct ucred * argument for VOP_VPTOCNP, to be used by
2009-06-21 19:21:01 +00:00
vtoc.h
Add __packed to the part sub-structure to compensate for
2008-12-14 23:12:36 +00:00
wait.h
Implement WNOWAIT flag for wait4(2). It specifies that process whose status
2008-08-26 12:37:16 +00:00
watchdog.h
Align the interfaces for the various watchdogs and make the interface
2006-12-15 21:44:49 +00:00