tcp: better congestion control defaults
Define CC_NEWRENO in all the appropriate DEFAULTS and std.* config
files. It's the default congestion control algorithm. Add code to cc.c
so that CC_DEFAULT is "newreno" if it's not overriden in the config
file.
Sponsored by: Netflix
Fixes: b8d60729de ("tcp: Congestion control cleanup.")
Revired by: manu, hselasky, jhb, glebius, tuexen
Differential Revision: https://reviews.freebsd.org/D32964
This commit is contained in:
Warner Losh
parent
ae062ff269
commit
7e3c9ec906
@ -21,4 +21,7 @@ options GEOM_PART_EBR
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options GEOM_PART_MBR
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options GEOM_PART_GPT
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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options NEW_PCIB
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@ -30,8 +30,6 @@ options PREEMPTION # Enable kernel thread preemption
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options VIMAGE # Subsystem virtualization, e.g. VNET
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
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options ROUTE_MPATH # Multipath routing support
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options FIB_ALGO # Modular fib lookups
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@ -43,8 +43,6 @@ options NUMA # Non-Uniform Memory Architecture support
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options PREEMPTION # Enable kernel thread preemption
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options TCP_OFFLOAD # TCP offload
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options SCTP_SUPPORT # Allow kldload of SCTP
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options FFS # Berkeley Fast Filesystem
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@ -5,3 +5,6 @@
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device mem
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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@ -13,4 +13,7 @@ options GEOM_PART_BSD
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options GEOM_PART_MBR
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options GEOM_PART_GPT
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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options NEW_PCIB
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@ -22,6 +22,9 @@ options GEOM_PART_EBR
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options GEOM_PART_MBR
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options GEOM_PART_GPT
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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# enable support for native hardware
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device atpic
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@ -31,8 +31,6 @@ options PREEMPTION # Enable kernel thread preemption
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options VIMAGE # Subsystem virtualization, e.g. VNET
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
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options ROUTE_MPATH # Multipath routing support
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options TCP_HHOOK # hhook(9) framework for TCP
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@ -44,8 +44,6 @@ options SCHED_ULE # ULE scheduler
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options PREEMPTION # Enable kernel thread preemption
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options TCP_OFFLOAD # TCP offload
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options SCTP_SUPPORT # Allow kldload of SCTP
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options FFS # Berkeley Fast Filesystem
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@ -9,3 +9,6 @@ device uart_ns8250
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options GEOM_PART_BSD
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options GEOM_PART_MBR
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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@ -77,6 +77,13 @@ __FBSDID("$FreeBSD$");
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#include <netinet/cc/cc.h>
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#include <netinet/cc/cc_module.h>
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/*
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* Have a sane default if no CC_DEFAULT is specified in the kernel config file.
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*/
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#ifndef CC_DEFAULT
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#define CC_DEFAULT "newreno"
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#endif
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MALLOC_DEFINE(M_CC_MEM, "CC Mem", "Congestion Control State memory");
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/*
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@ -12,4 +12,7 @@ device uart_ns8250
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options GEOM_PART_BSD
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options GEOM_PART_MBR
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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options NEW_PCIB
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@ -38,8 +38,6 @@ options PREEMPTION #Enable kernel thread preemption
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options VIMAGE # Subsystem virtualization, e.g. VNET
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options INET #InterNETworking
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options INET6 #IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
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options TCP_HHOOK # hhook(9) framework for TCP
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options TCP_RFC7413 # TCP Fast Open
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@ -12,4 +12,7 @@ device mem # Memory and kernel memory devices
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options GEOM_PART_BSD
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options GEOM_PART_MBR
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# Default congestion control algorithm
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options CC_NEWRENO # include newreno congestion control
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options NEW_PCIB
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@ -29,8 +29,6 @@ options PREEMPTION # Enable kernel thread preemption
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options VIMAGE # Subsystem virtualization, e.g. VNET
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options CC_NEWRENO # include newreno congestion control
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options CC_DEFAULT=\"newreno\" # define our default CC module it should be compiled in.
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options TCP_HHOOK # hhook(9) framework for TCP
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options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
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options ROUTE_MPATH # Multipath routing support
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