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update kmod-bbr

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This commit is contained in:
coolsnowwolf 2018-09-19 23:12:10 +08:00
parent 724b033fe3
commit d28b93f634
4 changed files with 19 additions and 19 deletions
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2
include/target.mk
View File

@ -22,7 +22,7 @@ luci-app-sfe luci-app-flowoffload luci-app-nlbwmon
# For nas targets
DEFAULT_PACKAGES.nas:=block-mount fdisk lsblk mdadm
# For router targets
DEFAULT_PACKAGES.router:=dnsmasq-full iptables ip6tables ppp ppp-mod-pppoe firewall odhcpd-ipv6only odhcp6c kmod-ipt-offload kmod-bbr_mod
DEFAULT_PACKAGES.router:=dnsmasq-full iptables ip6tables ppp ppp-mod-pppoe firewall kmod-ipt-offload kmod-bbr
DEFAULT_PACKAGES.bootloader:=
ifneq ($(DUMP),)

14
package/lean/bbr/Makefile
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@ -1,21 +1,21 @@
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=bbr_mod
PKG_NAME:=bbr
PKG_RELEASE:=1
include $(INCLUDE_DIR)/package.mk
define KernelPackage/bbr_mod
define KernelPackage/bbr
SUBMENU:=Network Support
TITLE:=Modified bbr tcp congestion control
TITLE:=bbr tcp congestion control
DEPENDS:=@LINUX_4_14
FILES:=$(PKG_BUILD_DIR)/tcp_bbr_mod.ko
FILES:=$(PKG_BUILD_DIR)/tcp_bbr.ko
KCONFIG:=
endef
define KernelPackage/bbr_mod/description
Kernel module of modified BBR tcp congestion control
define KernelPackage/bbr/description
Kernel module of BBR tcp congestion control
endef
EXTRA_KCONFIG:= \
@ -43,4 +43,4 @@ define Build/Compile
modules
endef
$(eval $(call KernelPackage,bbr_mod))
$(eval $(call KernelPackage,bbr))

2
package/lean/bbr/src/Makefile
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@ -1 +1 @@
obj-m := tcp_bbr_mod.o
obj-m := tcp_bbr.o

20
package/lean/bbr/src/tcp_bbr_mod.c → package/lean/bbr/src/tcp_bbr.c
View File

@ -126,7 +126,7 @@ static const int bbr_bw_rtts = CYCLE_LEN + 2;
/* Window length of min_rtt filter (in sec): */
static const u32 bbr_min_rtt_win_sec = 10;
/* Minimum time (in ms) spent at bbr_cwnd_min_target in BBR_PROBE_RTT mode: */
static const u32 bbr_probe_rtt_mode_ms = 100;
static const u32 bbr_probe_rtt_mode_ms = 200;
/* Skip TSO below the following bandwidth (bits/sec): */
static const int bbr_min_tso_rate = 1200000;
@ -135,19 +135,19 @@ static const int bbr_min_tso_rate = 1200000;
* and send the same number of packets per RTT that an un-paced, slow-starting
* Reno or CUBIC flow would:
*/
static const int bbr_high_gain = BBR_UNIT * 3000 / 1000 + 1;
static const int bbr_high_gain = BBR_UNIT * 2885 / 1000 + 1;
/* The pacing gain of 1/high_gain in BBR_DRAIN is calculated to typically drain
* the queue created in BBR_STARTUP in a single round:
*/
static const int bbr_drain_gain = BBR_UNIT * 1000 / 3000;
static const int bbr_drain_gain = BBR_UNIT * 1000 / 2885;
/* The gain for deriving steady-state cwnd tolerates delayed/stretched ACKs: */
static const int bbr_cwnd_gain = BBR_UNIT * 2;
/* The pacing_gain values for the PROBE_BW gain cycle, to discover/share bw: */
static const int bbr_pacing_gain[] = {
BBR_UNIT * 6 / 4, /* probe for more available bw */
BBR_UNIT * 5 / 4, /* probe for more available bw */
BBR_UNIT * 3 / 4, /* drain queue and/or yield bw to other flows */
BBR_UNIT * 5 / 4, BBR_UNIT * 5 / 4, BBR_UNIT * 5 / 4, /* cruise at 1.0*bw to utilize pipe, */
BBR_UNIT * 6 / 4, BBR_UNIT * 6 / 4, BBR_UNIT * 6 / 4 /* without creating excess queue... */
BBR_UNIT, BBR_UNIT, BBR_UNIT, /* cruise at 1.0*bw to utilize pipe, */
BBR_UNIT, BBR_UNIT, BBR_UNIT /* without creating excess queue... */
};
/* Randomize the starting gain cycling phase over N phases: */
static const u32 bbr_cycle_rand = 7;
@ -170,9 +170,9 @@ static const u32 bbr_lt_intvl_min_rtts = 4;
/* If lost/delivered ratio > 20%, interval is "lossy" and we may be policed: */
static const u32 bbr_lt_loss_thresh = 50;
/* If 2 intervals have a bw ratio <= 1/8, their bw is "consistent": */
static const u32 bbr_lt_bw_ratio = BBR_UNIT / 4;
static const u32 bbr_lt_bw_ratio = BBR_UNIT / 8;
/* If 2 intervals have a bw diff <= 4 Kbit/sec their bw is "consistent": */
static const u32 bbr_lt_bw_diff = 4000 / 4;
static const u32 bbr_lt_bw_diff = 4000 / 8;
/* If we estimate we're policed, use lt_bw for this many round trips: */
static const u32 bbr_lt_bw_max_rtts = 48;
@ -927,7 +927,7 @@ static void bbr_set_state(struct sock *sk, u8 new_state)
static struct tcp_congestion_ops tcp_bbr_cong_ops __read_mostly = {
.flags = TCP_CONG_NON_RESTRICTED,
.name = "tcp_bbr_mod",
.name = "bbr",
.owner = THIS_MODULE,
.init = bbr_init,
.cong_control = bbr_main,
@ -959,4 +959,4 @@ MODULE_AUTHOR("Neal Cardwell <ncardwell@google.com>");
MODULE_AUTHOR("Yuchung Cheng <ycheng@google.com>");
MODULE_AUTHOR("Soheil Hassas Yeganeh <soheil@google.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("TCP BBR (Bottleneck Bandwidth and RTT)");
MODULE_DESCRIPTION("TCP BBR (Bottleneck Bandwidth and RTT)");