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18a7530938
freebsd-nq/sys
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Patrick Kelsey 18a7530938 Greatly reduce the number of #ifdefs supporting the TCP_RFC7413 kernel option. 
The conditional compilation support is now centralized in
tcp_fastopen.h and tcp_var.h. This doesn't provide the minimum
theoretical code/data footprint when TCP_RFC7413 is disabled, but
nearly all the TFO code should wind up being removed by the optimizer,
the additional footprint in the syncache entries is a single pointer,
and the additional overhead in the tcpcb is at the end of the
structure.

This enables the TCP_RFC7413 kernel option by default in amd64 and
arm64 GENERIC.

Reviewed by:	hiren
MFC after:	1 month
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D14048
2018-02-26 03:03:41 +00:00
..
amd64 Greatly reduce the number of #ifdefs supporting the TCP_RFC7413 kernel option. 2018-02-26 03:03:41 +00:00
arm Add a SPI driver for imx5 and imx6. 2018-02-26 02:28:32 +00:00
arm64 Greatly reduce the number of #ifdefs supporting the TCP_RFC7413 kernel option. 2018-02-26 03:03:41 +00:00
bsm sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
cam Use bool instead of int for predicate functions relating to work 2018-02-23 16:06:54 +00:00
cddl Don't declare __assfail as static 2018-02-25 14:29:43 +00:00
compat Correct pseudo misspelling in sys/ comments 2018-02-23 18:15:50 +00:00
conf This is an implementation of the client side of TCP Fast Open (TFO) 2018-02-26 02:53:22 +00:00
contrib Define CK_MD_TSO for the relevant arches (i386, amd64 and sparc64). 2018-02-16 17:50:06 +00:00
crypto Remove unused error return from API that cannot fail 2018-02-23 20:15:19 +00:00
ddb Implement 'domainset', a cpuset based NUMA policy mechanism. This allows 2018-01-12 22:48:23 +00:00
dev Teach the Arm pl011 driver to attach to a SBSA uart. This is defined in 2018-02-25 19:43:00 +00:00
dts Add a skeleton Clock Manager for RPi2/3, and use that from pwm 2018-01-22 07:10:30 +00:00
fs {ext2|ufs}_readdir: Avoid setting negative ncookies. 2018-02-06 22:38:19 +00:00
gdb sys/gdb: further adoption of SPDX licensing ID tags. 2017-11-27 15:16:59 +00:00
geom Fix a memory leak introduced in r328426. 2018-02-16 15:41:03 +00:00
gnu bwn(4): txpid2g/txpid5g[lh] are not defined after sromrev 7; the default 2018-02-13 17:43:54 +00:00
i386 Remove unused error return from API that cannot fail 2018-02-23 20:15:19 +00:00
isa Add ISA PNP tables to ISA drivers. Fix a few incidental comments. 2018-01-29 00:22:30 +00:00
kern Don't generate data in sysctl_out_proc unless we intend to copy out. 2018-02-25 15:16:58 +00:00
kgssapi kgssapi: Remove trivial deadcode 2018-02-14 00:12:03 +00:00
libkern libkern: use nul for terminating char rather than 0 2018-02-13 19:17:48 +00:00
mips Do not include float interfaces when using libsa. 2018-02-23 04:04:25 +00:00
modules Add a SPI driver for imx5 and imx6. 2018-02-26 02:28:32 +00:00
net pf: Cope with overly large net.pf.states_hashsize 2018-02-25 08:56:44 +00:00
net80211 net80211: sanitize input for ieee80211_output() 2017-12-30 00:40:34 +00:00
netgraph Correct pseudo misspelling in sys/ comments 2018-02-23 18:15:50 +00:00
netinet Greatly reduce the number of #ifdefs supporting the TCP_RFC7413 kernel option. 2018-02-26 03:03:41 +00:00
netinet6 Update the MTU in affected routes when IPv6 RA changes the MTU 2018-02-12 19:49:20 +00:00
netipsec Remove unused variables and sysctl declaration. 2018-02-19 12:20:51 +00:00
netpfil pf: Cope with overly large net.pf.states_hashsize 2018-02-25 08:56:44 +00:00
netsmb Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
nfs Modernize nfssvc(2) registartion. 2018-02-08 20:09:42 +00:00
nfsclient style: Remove remaining deprecated MALLOC/FREE macros 2018-01-25 22:25:13 +00:00
nfsserver sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
nlm Use syscall_helper_register() to register syscalls and initialize though 2018-02-10 01:09:22 +00:00
ofed Import the mthca kernel side infiniband driver from Linux 4.9 and fix 2018-02-13 17:04:34 +00:00
opencrypto Move per-operation data out of the csession structure. 2018-01-26 23:21:50 +00:00
powerpc Avoid dereferencing random memory when kickstarting DMA. 2018-02-24 22:34:56 +00:00
riscv Do not include float interfaces when using libsa. 2018-02-23 04:04:25 +00:00
rpc Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
security mac_portacl(4): stop panicing INVARIANTS-enabled kernel by loading .ko 2018-02-25 23:10:13 +00:00
sparc64 Do not include float interfaces when using libsa. 2018-02-23 04:04:25 +00:00
sys Add a generic Proportional Integral Derivative (PID) controller algorithm and 2018-02-23 22:51:51 +00:00
teken sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
tests
tools Avoid using \$. It's an unknown escape sequence. Some awks warn about 2018-01-28 05:13:08 +00:00
ufs Use a more straight-forward approach to relaxing the location 2018-02-26 00:34:56 +00:00
vm Restore the pre-r329882 inactive page shortage computation. 2018-02-24 20:47:22 +00:00
x86 Correct pseudo misspelling in sys/ comments 2018-02-23 18:15:50 +00:00
xdr sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
xen sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
Makefile Move sys/boot to stand. Fix all references to new location 2017-11-14 23:02:19 +00:00