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Commit 6f9edc66 authored by Shan Wei's avatar Shan Wei Committed by David S. Miller
Browse files

net: Kill unuseful net/TUNABLE doc in kernel source 



File net/TUNABLE has never be updated since git age.

For some tunable parameters which user can control with proc file-system,
They are all in ip-sysctl.txt doc.

For tunable parameters that only at compile time, no meaning to note them.

Signed-off-by: default avatarShan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 572404ea

net/TUNABLE

deleted100644 → 0
+0 −50
Original line number Diff line number Diff line 
The following parameters should be tunable at compile time. Some of them

exist as sysctls too.



This is far from complete



Item			Description

----------------------------------------------------------------------------

MAX_LINKS		Maximum number of netlink minor devices. (1-32)

RIF_TABLE_SIZE		Token ring RIF cache size (tunable)

AARP_HASH_SIZE		Size of Appletalk hash table (tunable)

AX25_DEF_T1		AX.25 parameters. These are all tunable via

AX25_DEF_T2		SIOCAX25SETPARMS

AX25_DEF_T3		T1-T3,N2 have the meanings in the specification

AX25_DEF_N2

AX25_DEF_AXDEFMODE	8 = normal 128 is PE1CHL extended

AX25_DEF_IPDEFMODE	'D' - datagram  'V' - virtual connection

AX25_DEF_BACKOFF	'E'xponential 'L'inear

AX25_DEF_NETROM		Allow netrom 1=Y

AX25_DF_TEXT		Allow PID=Text 1=Y

AX25_DEF_WINDOW		Window for normal mode

AX25_DEF_EWINDOW	Window for PE1CHL mode

AX25_DEF_DIGI		1 for inband 2 for cross band 3 for both

AX25_DEF_CONMODE	Allow connected modes 1=Yes

AX25_ROUTE_MAX		AX.25 route cache size - no currently tunable

Unnamed (16)		Number of protocol hash slots (tunable)

DEV_NUMBUFFS		Number of priority levels (not easily tunable)

Unnamed (300)		Maximum packet backlog queue (tunable)

MAX_IOVEC		Maximum number of iovecs in a message (tunable)

MIN_WINDOW		Offered minimum window (tunable)

MAX_WINDOW		Offered maximum window (tunable)

MAX_HEADER		Largest physical header (tunable)

MAX_ADDR_LEN		Largest physical address (tunable)

SOCK_ARRAY_SIZE		IP socket array hash size (tunable)

IP_MAX_MEMBERSHIPS	Largest number of groups per socket (BSD style) (tunable)

16			Hard coded constant for amount of room allowed for

			cache align and faster forwarding (tunable)

IP_FRAG_TIME		Time we hold a fragment for. (tunable)

PORT_MASQ_BEGIN		First port reserved for masquerade (tunable)

PORT_MASQ_END		Last port used for masquerade	(tunable)

MASQUERADE_EXPIRE_TCP_FIN	Time we keep a masquerade for after a FIN

MASQUERADE_EXPIRE_UDP	Time we keep a UDP masquerade for (tunable)

MAXVIFS			Maximum mrouted vifs (1-32)

MFC_LINES		Lines in the multicast router cache (tunable)



NetROM parameters are tunable via an ioctl passing a struct



4000			Size a Unix domain socket malloc falls back to 

			(tunable) should be 8K - a bit for 8K machines like

			the ALPHA