1 Wed 2-Aug-95 <matti.aarnio@utu.fi>
3 Linux network driver modules
5 Do not mistake this for "README.modules" at the top-level
6 directory! That document tells about modules in general, while
7 this one tells only about network device driver modules.
9 This is a potpourri of INSMOD-time(*) configuration options
10 (if such exists) and their default values of various modules
11 in the Linux network drivers collection.
13 Some modules have also hidden (= non-documented) tunable values.
14 The choice of not documenting them is based on general belief, that
15 the less the user needs to know, the better. (There are things that
16 driver developers can use, others should not confuse themselves.)
18 In many cases it is highly preferred that insmod:ing is done
19 ONLY with defining an explicit address for the card, AND BY
20 NOT USING AUTO-PROBING!
22 Now most cards have some explicitly defined base address that they
23 are compiled with (to avoid auto-probing, among other things).
24 If that compiled value does not match your actual configuration,
25 do use the "io=0xXXX" -parameter for the insmod, and give there
26 a value matching your environment.
28 If you are adventurous, you can ask the driver to autoprobe
29 by using the "io=0" parameter, however it is a potentially dangerous
30 thing to do in a live system. (If you don't know where the
31 card is located, you can try autoprobing, and after possible
32 crash recovery, insmod with proper IO-address..)
34 --------------------------
35 (*) "INSMOD-time" means when you load module with
36 /sbin/insmod you can feed it optional parameters.
38 --------------------------
41 8390 based Network Modules (Paul Gortmaker, Nov 12, 1995)
42 --------------------------
44 (Includes: smc-ultra, ne, wd, 3c503, hp, hp-plus, e2100 and ac3200)
46 The 8390 series of network drivers now support multiple card systems without
47 reloading the same module multiple times (memory efficient!) This is done by
48 specifying multiple comma separated values, such as:
50 insmod 3c503.o io=0x280,0x300,0x330,0x350 xcvr=0,1,0,1
52 The above would have the one module controlling four 3c503 cards, with card 2
53 and 4 using external transceivers. The "insmod" manual describes the usage
54 of comma separated value lists.
56 It is *STRONGLY RECOMMENDED* that you supply "io=" instead of autoprobing.
57 If an "io=" argument is not supplied, then the ISA drivers will complain
58 about autoprobing being not recommended, and begrudgingly autoprobe for
59 a *SINGLE CARD ONLY* -- if you want to use multiple cards you *have* to
60 supply an "io=0xNNN,0xQQQ,..." argument.
62 The ne module is an exception to the above. A NE2000 is essentially an
63 8390 chip, some bus glue and some RAM. Because of this, the ne probe is
64 more invasive than the rest, and so at boot we make sure the ne probe is
65 done last of all the 8390 cards (so that it won't trip over other 8390 based
66 cards) With modules we can't ensure that all other non-ne 8390 cards have
67 already been found. Because of this, the ne module REQUIRES an "io=0xNNN"
68 argument passed in via insmod. It will refuse to autoprobe.
70 It is also worth noting that auto-IRQ probably isn't as reliable during
71 the flurry of interrupt activity on a running machine. Cards such as the
72 ne2000 that can't get the IRQ setting from an EEPROM or configuration
73 register are probably best supplied with an "irq=M" argument as well.
76 ----------------------------------------------------------------------
77 Card/Module List - Configurable Parameters and Default Values
78 ----------------------------------------------------------------------
81 io = 0x280 IO base address
83 (Probes ports: 0x280, 0x300)
86 io = 0 (It will complain if you don't supply an "io=0xNNN")
87 irq = 0 (IRQ software selected by driver using autoIRQ)
88 xcvr = 0 (Use xcvr=1 to select external transceiver.)
89 (Probes ports: 0x300, 0x310, 0x330, 0x350, 0x250, 0x280, 0x2A0, 0x2E0)
94 dma = 6 (not autoprobed)
95 (Probes ports: 0x300, 0x280, 0x310)
100 (Probes ports: 0x300, 0x320, 0x340, 0x280)
105 ( Module load-time probing Works reliably only on EISA, ISA ID-PROBE
106 IS NOT RELIABLE! Compile this driver statically into kernel for
107 now, if you need it auto-probing on an ISA-bus machine. )
110 (No public options, several other modules need this one)
113 Since this is a Zorro board, it supports full autoprobing, even for
114 multiple boards. (m68k/Amiga)
117 io = 0 (Checks 0x1000 to 0x8fff in 0x1000 intervals)
118 irq = 0 (Read from config register)
122 io = 0x300 (Can't be altered!)
130 DO SET THESE MANUALLY AT INSMOD!
131 (When probing, looks at the following possible addresses:
133 0x300, 0x2E0, 0x2F0, 0x2D0
135 0x200, 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x270,
136 0x280, 0x290, 0x2A0, 0x2B0, 0x2C0,
137 0x310, 0x320, 0x330, 0x340, 0x350, 0x360, 0x370,
138 0x380, 0x390, 0x3A0, 0x3E0, 0x3F0 )
141 Since this is a Zorro board, it supports full autoprobing, even for
142 multiple boards. (m68k/Amiga)
147 (Probes ports: 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300)
150 Supports full autoprobing. (m68k/Atari)
152 atp.c: *Not modularized*
153 (Probes ports: 0x378, 0x278, 0x3BC;
154 fixed IRQs: 5 and 7 )
159 nodeid = 0 (AutoSelect = 0, NodeID 1-254 is hand selected.)
160 (Probes ports: 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260,
161 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360)
166 is_not_dec = 0 -- For non-DEC card using DEC 21040/21041/21140 chip, set this to 1
167 (EISA, and PCI probing)
171 (On port 0x378, irq 7 -- lpt1; compile time configurable)
174 bnc = 0, utp = 0 <-- Force media by setting either.
175 io = 0x378 (also compile-time configurable)
181 (Probes ports: ISA: 0x300, 0x200;
188 io = 0 (It will complain if you don't supply an "io=0xNNN")
189 irq = 0 (IRQ software selected by driver)
190 mem = 0 (Override default shared memory start of 0xd0000)
191 xcvr = 0 (Use xcvr=1 to select external transceiver.)
192 (Probes ports: 0x300, 0x280, 0x380, 0x220)
197 (Probes ports: 0x200, 0x240, 0x280, 0x2C0, 0x300, 0x320, 0x340, 0x360)
201 irq = 0 (IRQ value read from EEPROM)
202 (Probes ports: 0x300, 0x270, 0x320, 0x340)
210 (With module no autoprobing!
211 On EISA-bus does EISA probing.
212 Static linkage probes ports on ISA bus:
213 0x100, 0x120, 0x140, 0x160, 0x180, 0x1A0, 0x1C0,
214 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0,
215 0x300, 0x340, 0x360, 0x380, 0x3A0, 0x3C0)
218 io = 0 (It will complain if you don't supply an "io=0xNNN")
219 irq = 0 (IRQ read from configuration register)
220 (Probes ports: 0x200, 0x240, 0x280, 0x2C0, 0x300, 0x320, 0x340)
223 io = 0 (It will complain if you don't supply an "io=0xNNN")
224 irq = 0 (IRQ software selected by driver using autoIRQ)
225 (Probes ports: 0x300, 0x320, 0x340, 0x280, 0x2C0, 0x200, 0x240)
228 hp100_port = 0 (IO-base address)
229 (Does EISA-probing, if on EISA-slot;
230 On ISA-bus probes all ports from 0x100 thru to 0x3E0
231 in increments of 0x020)
234 Since this is a Zorro board, it supports full autoprobing, even for
235 multiple boards. (m68k/Amiga)
238 io = 0xa20, 0xa24 (autoprobed by default)
239 irq = 0 (driver cannot select irq - read from hardware)
240 mem = 0 (shared memory base set at 0xd0000 and not yet
241 able to override thru mem= parameter.)
243 lance.c: *Not modularized*
244 (PCI, and ISA probing; "CONFIG_PCI" needed for PCI support)
245 (Probes ISA ports: 0x300, 0x320, 0x340, 0x360)
247 loopback.c: *Static kernel component*
250 io = 0 (Explicitly *requires* an "io=0xNNN" value)
251 irq = 0 (Tries to determine configured IRQ via autoIRQ)
252 (Probes ports: 0x300, 0x280, 0x320, 0x340, 0x360)
254 net_init.c: *Static kernel component*
256 ni52.c: *Not modularized*
257 (Probes ports: 0x300, 0x280, 0x360, 0x320, 0x340
258 mems: 0xD0000, 0xD2000, 0xC8000, 0xCA000,
259 0xD4000, 0xD6000, 0xD8000 )
261 ni65.c: *Not modularized* **16MB MEMORY BARRIER BUG**
262 (Probes ports: 0x300, 0x320, 0x340, 0x360)
264 pi2.c: *Not modularized* (well, NON-STANDARD modularization!)
265 Only one card supported at this time.
266 (Probes ports: 0x380, 0x300, 0x320, 0x340, 0x360, 0x3A0)
270 irq = 0 (by default, uses IRQ 5 for port at 0x3bc, IRQ 7
271 for port at 0x378, and IRQ 2 for port at 0x278)
272 (Probes ports: 0x278, 0x378, 0x3bc)
275 No options (ppp-2.2+ has some, this is based on non-dynamic
276 version from ppp-2.1.2d)
278 seeq8005.c: *Not modularized*
279 (Probes ports: 0x300, 0x320, 0x340, 0x360)
281 skeleton.c: *Skeleton*
284 No configuration parameters
287 slip_maxdev = 256 (default value from SL_NRUNIT on slip.h)
291 io = 0 (It will complain if you don't supply an "io=0xNNN")
292 irq = 0 (IRQ val. read from EEPROM)
293 (Probes ports: 0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380)
295 tulip.c: *Partial modularization*
296 (init-time memory allocation makes problems..)
302 io = 0x390 (Settable, but change not recommended)
303 irq = 0 (Not honoured, if changed..)
306 io = 0 (It will complain if you don't supply an "io=0xNNN")
307 irq = 0 (IRQ val. read from EEPROM, ancient cards use autoIRQ)
308 mem = 0 (Force shared-memory on address 0xC8000, or whatever..)
309 mem_end = 0 (Force non-std. mem. size via supplying mem_end val.)
310 (eg. for 32k WD8003EBT, use mem=0xd0000 mem_end=0xd8000)
311 (Probes ports: 0x300, 0x280, 0x380, 0x240)
313 znet.c: *Not modularized*
314 (Only one device on Zenith Z-Note (notebook?) systems,
315 configuration information from (EE)PROM)