| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | The following parameters should be tunable at compile time. Some of them |
| 2 | exist as sysctls too. |
| 3 | |
| 4 | This is far from complete |
| 5 | |
| 6 | Item Description |
| 7 | ---------------------------------------------------------------------------- |
| 8 | MAX_LINKS Maximum number of netlink minor devices. (1-32) |
| 9 | RIF_TABLE_SIZE Token ring RIF cache size (tunable) |
| 10 | AARP_HASH_SIZE Size of Appletalk hash table (tunable) |
| 11 | AX25_DEF_T1 AX.25 parameters. These are all tunable via |
| 12 | AX25_DEF_T2 SIOCAX25SETPARMS |
| 13 | AX25_DEF_T3 T1-T3,N2 have the meanings in the specification |
| 14 | AX25_DEF_N2 |
| 15 | AX25_DEF_AXDEFMODE 8 = normal 128 is PE1CHL extended |
| 16 | AX25_DEF_IPDEFMODE 'D' - datagram 'V' - virtual connection |
| 17 | AX25_DEF_BACKOFF 'E'xponential 'L'inear |
| 18 | AX25_DEF_NETROM Allow netrom 1=Y |
| 19 | AX25_DF_TEXT Allow PID=Text 1=Y |
| 20 | AX25_DEF_WINDOW Window for normal mode |
| 21 | AX25_DEF_EWINDOW Window for PE1CHL mode |
| 22 | AX25_DEF_DIGI 1 for inband 2 for cross band 3 for both |
| 23 | AX25_DEF_CONMODE Allow connected modes 1=Yes |
| 24 | AX25_ROUTE_MAX AX.25 route cache size - no currently tunable |
| 25 | Unnamed (16) Number of protocol hash slots (tunable) |
| 26 | DEV_NUMBUFFS Number of priority levels (not easily tunable) |
| 27 | Unnamed (300) Maximum packet backlog queue (tunable) |
| 28 | MAX_IOVEC Maximum number of iovecs in a message (tunable) |
| 29 | MIN_WINDOW Offered minimum window (tunable) |
| 30 | MAX_WINDOW Offered maximum window (tunable) |
| 31 | MAX_HEADER Largest physical header (tunable) |
| 32 | MAX_ADDR_LEN Largest physical address (tunable) |
| 33 | SOCK_ARRAY_SIZE IP socket array hash size (tunable) |
| 34 | IP_MAX_MEMBERSHIPS Largest number of groups per socket (BSD style) (tunable) |
| 35 | 16 Hard coded constant for amount of room allowed for |
| 36 | cache align and faster forwarding (tunable) |
| 37 | IP_FRAG_TIME Time we hold a fragment for. (tunable) |
| 38 | PORT_MASQ_BEGIN First port reserved for masquerade (tunable) |
| 39 | PORT_MASQ_END Last port used for masquerade (tunable) |
| 40 | MASQUERADE_EXPIRE_TCP_FIN Time we keep a masquerade for after a FIN |
| 41 | MASQUERADE_EXPIRE_UDP Time we keep a UDP masquerade for (tunable) |
| 42 | MAXVIFS Maximum mrouted vifs (1-32) |
| 43 | MFC_LINES Lines in the multicast router cache (tunable) |
| 44 | |
| 45 | NetROM parameters are tunable via an ioctl passing a struct |
| 46 | |
| 47 | 4000 Size a Unix domain socket malloc falls back to |
| 48 | (tunable) should be 8K - a bit for 8K machines like |
| 49 | the ALPHA |
| 50 | |