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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
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tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/networking/net-modules.txt
downloadconfigs-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+Wed 2-Aug-95 <matti.aarnio@utu.fi>
+
+ Linux network driver modules
+
+ Do not mistake this for "README.modules" at the top-level
+ directory! That document tells about modules in general, while
+ this one tells only about network device driver modules.
+
+ This is a potpourri of INSMOD-time(*) configuration options
+ (if such exists) and their default values of various modules
+ in the Linux network drivers collection.
+
+ Some modules have also hidden (= non-documented) tunable values.
+ The choice of not documenting them is based on general belief, that
+ the less the user needs to know, the better. (There are things that
+ driver developers can use, others should not confuse themselves.)
+
+ In many cases it is highly preferred that insmod:ing is done
+ ONLY with defining an explicit address for the card, AND BY
+ NOT USING AUTO-PROBING!
+
+ Now most cards have some explicitly defined base address that they
+ are compiled with (to avoid auto-probing, among other things).
+ If that compiled value does not match your actual configuration,
+ do use the "io=0xXXX" -parameter for the insmod, and give there
+ a value matching your environment.
+
+ If you are adventurous, you can ask the driver to autoprobe
+ by using the "io=0" parameter, however it is a potentially dangerous
+ thing to do in a live system. (If you don't know where the
+ card is located, you can try autoprobing, and after possible
+ crash recovery, insmod with proper IO-address..)
+
+ --------------------------
+ (*) "INSMOD-time" means when you load module with
+ /sbin/insmod you can feed it optional parameters.
+ See "man insmod".
+ --------------------------
+
+
+ 8390 based Network Modules (Paul Gortmaker, Nov 12, 1995)
+ --------------------------
+
+(Includes: smc-ultra, ne, wd, 3c503, hp, hp-plus, e2100 and ac3200)
+
+The 8390 series of network drivers now support multiple card systems without
+reloading the same module multiple times (memory efficient!) This is done by
+specifying multiple comma separated values, such as:
+
+ insmod 3c503.o io=0x280,0x300,0x330,0x350 xcvr=0,1,0,1
+
+The above would have the one module controlling four 3c503 cards, with card 2
+and 4 using external transceivers. The "insmod" manual describes the usage
+of comma separated value lists.
+
+It is *STRONGLY RECOMMENDED* that you supply "io=" instead of autoprobing.
+If an "io=" argument is not supplied, then the ISA drivers will complain
+about autoprobing being not recommended, and begrudgingly autoprobe for
+a *SINGLE CARD ONLY* -- if you want to use multiple cards you *have* to
+supply an "io=0xNNN,0xQQQ,..." argument.
+
+The ne module is an exception to the above. A NE2000 is essentially an
+8390 chip, some bus glue and some RAM. Because of this, the ne probe is
+more invasive than the rest, and so at boot we make sure the ne probe is
+done last of all the 8390 cards (so that it won't trip over other 8390 based
+cards) With modules we can't ensure that all other non-ne 8390 cards have
+already been found. Because of this, the ne module REQUIRES an "io=0xNNN"
+argument passed in via insmod. It will refuse to autoprobe.
+
+It is also worth noting that auto-IRQ probably isn't as reliable during
+the flurry of interrupt activity on a running machine. Cards such as the
+ne2000 that can't get the IRQ setting from an EEPROM or configuration
+register are probably best supplied with an "irq=M" argument as well.
+
+
+----------------------------------------------------------------------
+Card/Module List - Configurable Parameters and Default Values
+----------------------------------------------------------------------
+
+3c501.c:
+ io = 0x280 IO base address
+ irq = 5 IRQ
+ (Probes ports: 0x280, 0x300)
+
+3c503.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ software selected by driver using autoIRQ)
+ xcvr = 0 (Use xcvr=1 to select external transceiver.)
+ (Probes ports: 0x300, 0x310, 0x330, 0x350, 0x250, 0x280, 0x2A0, 0x2E0)
+
+3c505.c:
+ io = 0
+ irq = 0
+ dma = 6 (not autoprobed)
+ (Probes ports: 0x300, 0x280, 0x310)
+
+3c507.c:
+ io = 0x300
+ irq = 0
+ (Probes ports: 0x300, 0x320, 0x340, 0x280)
+
+3c509.c:
+ io = 0
+ irq = 0
+ ( Module load-time probing Works reliably only on EISA, ISA ID-PROBE
+ IS NOT RELIABLE! Compile this driver statically into kernel for
+ now, if you need it auto-probing on an ISA-bus machine. )
+
+8390.c:
+ (No public options, several other modules need this one)
+
+a2065.c:
+ Since this is a Zorro board, it supports full autoprobing, even for
+ multiple boards. (m68k/Amiga)
+
+ac3200.c:
+ io = 0 (Checks 0x1000 to 0x8fff in 0x1000 intervals)
+ irq = 0 (Read from config register)
+ (EISA probing..)
+
+apricot.c:
+ io = 0x300 (Can't be altered!)
+ irq = 10
+
+arcnet.c:
+ io = 0
+ irqnum = 0
+ shmem = 0
+ num = 0
+ DO SET THESE MANUALLY AT INSMOD!
+ (When probing, looks at the following possible addresses:
+ Suggested ones:
+ 0x300, 0x2E0, 0x2F0, 0x2D0
+ Other ones:
+ 0x200, 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x270,
+ 0x280, 0x290, 0x2A0, 0x2B0, 0x2C0,
+ 0x310, 0x320, 0x330, 0x340, 0x350, 0x360, 0x370,
+ 0x380, 0x390, 0x3A0, 0x3E0, 0x3F0 )
+
+ariadne.c:
+ Since this is a Zorro board, it supports full autoprobing, even for
+ multiple boards. (m68k/Amiga)
+
+at1700.c:
+ io = 0x260
+ irq = 0
+ (Probes ports: 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300)
+
+atari_bionet.c:
+ Supports full autoprobing. (m68k/Atari)
+
+atari_pamsnet.c:
+ Supports full autoprobing. (m68k/Atari)
+
+atarilance.c:
+ Supports full autoprobing. (m68k/Atari)
+
+atp.c: *Not modularized*
+ (Probes ports: 0x378, 0x278, 0x3BC;
+ fixed IRQs: 5 and 7 )
+
+cops.c:
+ io = 0x240
+ irq = 5
+ nodeid = 0 (AutoSelect = 0, NodeID 1-254 is hand selected.)
+ (Probes ports: 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260,
+ 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360)
+
+de4x5.c:
+ io = 0x000b
+ irq = 10
+ is_not_dec = 0 -- For non-DEC card using DEC 21040/21041/21140 chip, set this to 1
+ (EISA, and PCI probing)
+
+de600.c:
+ de600_debug = 0
+ (On port 0x378, irq 7 -- lpt1; compile time configurable)
+
+de620.c:
+ bnc = 0, utp = 0 <-- Force media by setting either.
+ io = 0x378 (also compile-time configurable)
+ irq = 7
+
+depca.c:
+ io = 0x200
+ irq = 7
+ (Probes ports: ISA: 0x300, 0x200;
+ EISA: 0x0c00 )
+
+dummy.c:
+ No options
+
+e2100.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ software selected by driver)
+ mem = 0 (Override default shared memory start of 0xd0000)
+ xcvr = 0 (Use xcvr=1 to select external transceiver.)
+ (Probes ports: 0x300, 0x280, 0x380, 0x220)
+
+eepro.c:
+ io = 0x200
+ irq = 0
+ (Probes ports: 0x200, 0x240, 0x280, 0x2C0, 0x300, 0x320, 0x340, 0x360)
+
+eexpress.c:
+ io = 0x300
+ irq = 0 (IRQ value read from EEPROM)
+ (Probes ports: 0x300, 0x270, 0x320, 0x340)
+
+eql.c:
+ (No parameters)
+
+ewrk3.c:
+ io = 0x300
+ irq = 5
+ (With module no autoprobing!
+ On EISA-bus does EISA probing.
+ Static linkage probes ports on ISA bus:
+ 0x100, 0x120, 0x140, 0x160, 0x180, 0x1A0, 0x1C0,
+ 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0,
+ 0x300, 0x340, 0x360, 0x380, 0x3A0, 0x3C0)
+
+hp-plus.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ read from configuration register)
+ (Probes ports: 0x200, 0x240, 0x280, 0x2C0, 0x300, 0x320, 0x340)
+
+hp.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ software selected by driver using autoIRQ)
+ (Probes ports: 0x300, 0x320, 0x340, 0x280, 0x2C0, 0x200, 0x240)
+
+hp100.c:
+ hp100_port = 0 (IO-base address)
+ (Does EISA-probing, if on EISA-slot;
+ On ISA-bus probes all ports from 0x100 thru to 0x3E0
+ in increments of 0x020)
+
+hydra.c:
+ Since this is a Zorro board, it supports full autoprobing, even for
+ multiple boards. (m68k/Amiga)
+
+ibmtr.c:
+ io = 0xa20, 0xa24 (autoprobed by default)
+ irq = 0 (driver cannot select irq - read from hardware)
+ mem = 0 (shared memory base set at 0xd0000 and not yet
+ able to override thru mem= parameter.)
+
+lance.c: *Not modularized*
+ (PCI, and ISA probing; "CONFIG_PCI" needed for PCI support)
+ (Probes ISA ports: 0x300, 0x320, 0x340, 0x360)
+
+loopback.c: *Static kernel component*
+
+ne.c:
+ io = 0 (Explicitly *requires* an "io=0xNNN" value)
+ irq = 0 (Tries to determine configured IRQ via autoIRQ)
+ (Probes ports: 0x300, 0x280, 0x320, 0x340, 0x360)
+
+net_init.c: *Static kernel component*
+
+ni52.c: *Not modularized*
+ (Probes ports: 0x300, 0x280, 0x360, 0x320, 0x340
+ mems: 0xD0000, 0xD2000, 0xC8000, 0xCA000,
+ 0xD4000, 0xD6000, 0xD8000 )
+
+ni65.c: *Not modularized* **16MB MEMORY BARRIER BUG**
+ (Probes ports: 0x300, 0x320, 0x340, 0x360)
+
+pi2.c: *Not modularized* (well, NON-STANDARD modularization!)
+ Only one card supported at this time.
+ (Probes ports: 0x380, 0x300, 0x320, 0x340, 0x360, 0x3A0)
+
+plip.c:
+ io = 0
+ irq = 0 (by default, uses IRQ 5 for port at 0x3bc, IRQ 7
+ for port at 0x378, and IRQ 2 for port at 0x278)
+ (Probes ports: 0x278, 0x378, 0x3bc)
+
+ppp.c:
+ No options (ppp-2.2+ has some, this is based on non-dynamic
+ version from ppp-2.1.2d)
+
+seeq8005.c: *Not modularized*
+ (Probes ports: 0x300, 0x320, 0x340, 0x360)
+
+sk_g16.c: *Not modularized*
+ (Probes ports: 0x100, 0x180, 0x208, 0x220m 0x288, 0x320, 0x328, 0x390)
+
+skeleton.c: *Skeleton*
+
+slhc.c:
+ No configuration parameters
+
+slip.c:
+ slip_maxdev = 256 (default value from SL_NRUNIT on slip.h)
+
+
+smc-ultra.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ val. read from EEPROM)
+ (Probes ports: 0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380)
+
+tulip.c: *Partial modularization*
+ (init-time memory allocation makes problems..)
+
+tunnel.c:
+ No insmod parameters
+
+wavelan.c:
+ io = 0x390 (Settable, but change not recommended)
+ irq = 0 (Not honoured, if changed..)
+
+wd.c:
+ io = 0 (It will complain if you don't supply an "io=0xNNN")
+ irq = 0 (IRQ val. read from EEPROM, ancient cards use autoIRQ)
+ mem = 0 (Force shared-memory on address 0xC8000, or whatever..)
+ mem_end = 0 (Force non-std. mem. size via supplying mem_end val.)
+ (eg. for 32k WD8003EBT, use mem=0xd0000 mem_end=0xd8000)
+ (Probes ports: 0x300, 0x280, 0x380, 0x240)
+
+znet.c: *Not modularized*
+ (Only one device on Zenith Z-Note (notebook?) systems,
+ configuration information from (EE)PROM)