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Commit 915590cf authored by Adrian Bunk's avatar Adrian Bunk Committed by David S. Miller
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[NET]: Remove comx driver docs. 

The drivers have already been removed 3.5 years ago.
Signed-off-by: default avatarAdrian Bunk <bunk@kernel.org>
Acked-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 240e5464
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Documentation/networking/00-INDEX
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......@@ -24,8 +24,6 @@ baycom.txt
- info on the driver for Baycom style amateur radio modems
bridge.txt
- where to get user space programs for ethernet bridging with Linux.
comx.txt
- info on drivers for COMX line of synchronous serial adapters.
cops.txt
- info on the COPS LocalTalk Linux driver
cs89x0.txt
......
Documentation/networking/comx.txt deleted 100644 → 0
View file @ 240e5464
COMX drivers for the 2.2 kernel
Originally written by: Tivadar Szemethy, <tiv@itc.hu>
Currently maintained by: Gergely Madarasz <gorgo@itc.hu>
Last change: 21/06/1999.
INTRODUCTION
This document describes the software drivers and their use for the
COMX line of synchronous serial adapters for Linux version 2.2.0 and
above.
The cards are produced and sold by ITC-Pro Ltd. Budapest, Hungary
For further info contact <info@itc.hu>
or http://www.itc.hu (mostly in Hungarian).
The firmware files and software are available from ftp://ftp.itc.hu
Currently, the drivers support the following cards and protocols:
COMX (2x64 kbps intelligent board)
CMX (1x256 + 1x128 kbps intelligent board)
HiCOMX (2x2Mbps intelligent board)
LoCOMX (1x512 kbps passive board)
MixCOM (1x512 or 2x512kbps passive board with a hardware watchdog an
optional BRI interface and optional flashROM (1-32M))
SliceCOM (1x2Mbps channelized E1 board)
PciCOM (X21)
At the moment of writing this document, the (Cisco)-HDLC, LAPB, SyncPPP and
Frame Relay (DTE, rfc1294 IP encapsulation with partially implemented Q933a
LMI) protocols are available as link-level protocol.
X.25 support is being worked on.
USAGE
Load the comx.o module and the hardware-specific and protocol-specific
modules you'll need into the running kernel using the insmod utility.
This creates the /proc/comx directory.
See the example scripts in the 'etc' directory.
/proc INTERFACE INTRO
The COMX driver set has a new type of user interface based on the /proc
filesystem which eliminates the need for external user-land software doing
IOCTL calls.
Each network interface or device (i.e. those ones you configure with 'ifconfig'
and 'route' etc.) has a corresponding directory under /proc/comx. You can
dynamically create a new interface by saying 'mkdir /proc/comx/comx0' (or you
can name it whatever you want up to 8 characters long, comx[n] is just a
convention).
Generally the files contained in these directories are text files, which can
be viewed by 'cat filename' and you can write a string to such a file by
saying 'echo _string_ >filename'. This is very similar to the sysctl interface.
Don't use a text editor to edit these files, always use 'echo' (or 'cat'
where appropriate).
When you've created the comx[n] directory, two files are created automagically
in it: 'boardtype' and 'protocol'. You have to fill in these files correctly
for your board and protocol you intend to use (see the board and protocol
descriptions in this file below or the example scripts in the 'etc' directory).
After filling in these files, other files will appear in the directory for
setting the various hardware- and protocol-related informations (for example
irq and io addresses, keepalive values etc.) These files are set to default
values upon creation, so you don't necessarily have to change all of them.
When you're ready with filling in the files in the comx[n] directory, you can
configure the corresponding network interface with the standard network
configuration utilities. If you're unable to bring the interfaces up, look up
the various kernel log files on your system, and consult the messages for
a probable reason.
EXAMPLE
To create the interface 'comx0' which is the first channel of a COMX card:
insmod comx
# insmod comx-hw-comx ; insmod comx-proto-ppp (these are usually
autoloaded if you use the kernel module loader)
mkdir /proc/comx/comx0
echo comx >/proc/comx/comx0/boardtype
echo 0x360 >/proc/comx/comx0/io <- jumper-selectable I/O port
echo 0x0a >/proc/comx/comx0/irq <- jumper-selectable IRQ line
echo 0xd000 >/proc/comx/comx0/memaddr <- software-configurable memory
address. COMX uses 64 KB, and this
can be: 0xa000, 0xb000, 0xc000,
0xd000, 0xe000. Avoid conflicts
with other hardware.
cat </etc/siol1.rom >/proc/comx/comx0/firmware <- the firmware for the card
echo HDLC >/proc/comx/comx0/protocol <- the data-link protocol
echo 10 >/proc/comx/comx0/keepalive <- the keepalive for the protocol
ifconfig comx0 1.2.3.4 pointopoint 5.6.7.8 netmask 255.255.255.255 <-
finally configure it with ifconfig
Check its status:
cat /proc/comx/comx0/status
If you want to use the second channel of this board:
mkdir /proc/comx/comx1
echo comx >/proc/comx/comx1/boardtype
echo 0x360 >/proc/comx/comx1/io
echo 10 >/proc/comx/comx1/irq
echo 0xd000 >/proc/comx/comx1/memaddr
echo 1 >/proc/comx/comx1/channel <- channels are numbered
as 0 (default) and 1
Now, check if the driver recognized that you're going to use the other
channel of the same adapter:
cat /proc/comx/comx0/twin
comx1
cat /proc/comx/comx1/twin
comx0
You don't have to load the firmware twice, if you use both channels of
an adapter, just write it into the channel 0's /proc firmware file.
Default values: io 0x360 for COMX, 0x320 (HICOMX), irq 10, memaddr 0xd0000
THE LOCOMX HARDWARE DRIVER
The LoCOMX driver doesn't require firmware, and it doesn't use memory either,
but it uses DMA channels 1 and 3. You can set the clock rate (if enabled by
jumpers on the board) by writing the kbps value into the file named 'clock'.
Set it to 'external' (it is the default) if you have external clock source.
(Note: currently the LoCOMX driver does not support the internal clock)
THE COMX, CMX AND HICOMX DRIVERS
On the HICOMX, COMX and CMX, you have to load the firmware (it is different for
the three cards!). All these adapters can share the same memory
address (we usually use 0xd0000). On the CMX you can set the internal
clock rate (if enabled by jumpers on the small adapter boards) by writing
the kbps value into the 'clock' file. You have to do this before initializing
the card. If you use both HICOMX and CMX/COMX cards, initialize the HICOMX
first. The I/O address of the HICOMX board is not configurable by any
method available to the user: it is hardwired to 0x320, and if you have to
change it, consult ITC-Pro Ltd.
THE MIXCOM DRIVER
The MixCOM board doesn't require firmware, the driver communicates with
it through I/O ports. You can have three of these cards in one machine.
THE SLICECOM DRIVER
The SliceCOM board doesn't require firmware. You can have 4 of these cards
in one machine. The driver doesn't (yet) support shared interrupts, so
you will need a separate IRQ line for every board.
Read Documentation/networking/slicecom.txt for help on configuring
this adapter.
THE HDLC/PPP LINE PROTOCOL DRIVER
The HDLC/SyncPPP line protocol driver uses the kernel's built-in syncppp
driver (syncppp.o). You don't have to manually select syncppp.o when building
the kernel, the dependencies compile it in automatically.
EXAMPLE
(setting up hw parameters, see above)
# using HDLC:
echo hdlc >/proc/comx/comx0/protocol
echo 10 >/proc/comx/comx0/keepalive <- not necessary, 10 is the default
ifconfig comx0 1.2.3.4 pointopoint 5.6.7.8 netmask 255.255.255.255
(setting up hw parameters, see above)
# using PPP:
echo ppp >/proc/comx/comx0/protocol
ifconfig comx0 up
ifconfig comx0 1.2.3.4 pointopoint 5.6.7.8 netmask 255.255.255.255
THE LAPB LINE PROTOCOL DRIVER
For this, you'll need to configure LAPB support (See 'LAPB Data Link Driver' in
'Network options' section) into your kernel (thanks to Jonathan Naylor for his
excellent implementation).
comx-proto-lapb.o provides the following files in the appropriate directory
(the default values in parens): t1 (5), t2 (1), n2 (20), mode (DTE, STD) and
window (7). Agree with the administrator of your peer router on these
settings (most people use defaults, but you have to know if you are DTE or
DCE).
EXAMPLE
(setting up hw parameters, see above)
echo lapb >/proc/comx/comx0/protocol
echo dce >/proc/comx/comx0/mode <- DCE interface in this example
ifconfig comx0 1.2.3.4 pointopoint 5.6.7.8 netmask 255.255.255.255
THE FRAME RELAY PROTOCOL DRIVER
You DON'T need any other frame relay related modules from the kernel to use
COMX-Frame Relay. This protocol is a bit more complicated than the others,
because it allows to use 'subinterfaces' or DLCIs within one physical device.
First you have to create the 'master' device (the actual physical interface)
as you would do for other protocols. Specify 'frad' as protocol type.
Now you can bring this interface up by saying 'ifconfig comx0 up' (or whatever
you've named the interface). Do not assign any IP address to this interface
and do not set any routes through it.
Then, set up your DLCIs the following way: create a comx interface for each
DLCI you intend to use (with mkdir), and write 'dlci' to the 'boardtype' file,
and 'ietf-ip' to the 'protocol' file. Currently, the only supported
encapsulation type is this (also called as RFC1294/1490 IP encapsulation).
Write the DLCI number to the 'dlci' file, and write the name of the physical
COMX device to the file called 'master'.
Now you can assign an IP address to this interface and set routes using it.
See the example file for further info and example config script.
Notes: this driver implements a DTE interface with partially implemented
Q933a LMI.
You can find an extensively commented example in the 'etc' directory.
FURTHER /proc FILES
boardtype:
Type of the hardware. Valid values are:
'comx', 'hicomx', 'locomx', 'cmx', 'slicecom'.
protocol:
Data-link protocol on this channel. Can be: HDLC, LAPB, PPP, FRAD
status:
You can read the channel's actual status from the 'status' file, for example
'cat /proc/comx/comx3/status'.
lineup_delay:
Interpreted in seconds (default is 1). Used to avoid line jitter: the system
will consider the line status 'UP' only if it is up for at least this number
of seconds.
debug:
You can set various debug options through this file. Valid options are:
'comx_events', 'comx_tx', 'comx_rx', 'hw_events', 'hw_tx', 'hw_rx'.
You can enable a debug options by writing its name prepended by a '+' into
the debug file, for example 'echo +comx_rx >comx0/debug'.
Disabling an option happens similarly, use the '-' prefix
(e.g. 'echo -hw_rx >debug').
Debug results can be read from the debug file, for example:
tail -f /proc/comx/comx2/debug
Documentation/networking/slicecom.hun deleted 100644 → 0
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SliceCOM adapter felhasznaloi dokumentacioja - 0.51 verziohoz
Bartók István <bartoki@itc.hu>
Utolso modositas: Wed Aug 29 17:26:58 CEST 2001
-----------------------------------------------------------------
Hasznalata:
Forditas:
Code maturity level options
[*] Prompt for development and/or incomplete code/drivers
Network device support
Wan interfaces
<M> MultiGate (COMX) synchronous
<M> Support for MUNICH based boards: SliceCOM, PCICOM (NEW)
<M> Support for HDLC and syncPPP...
A modulok betoltese:
modprobe comx
modprobe comx-proto-ppp # a Cisco-HDLC es a SyncPPP protokollt is
# ez a modul adja
modprobe comx-hw-munich # a modul betoltodeskor azonnal jelent a
# syslogba a detektalt kartyakrol
Konfiguralas:
# Ezen az interfeszen Cisco-HDLC vonali protokoll fog futni
# Az interfeszhez rendelt idoszeletek: 1,2 (128 kbit/sec-es vonal)
# (a G.703 keretben az elso adatot vivo idoszelet az 1-es)
#
mkdir /proc/comx/comx0.1/
echo slicecom >/proc/comx/comx0.1/boardtype
echo hdlc >/proc/comx/comx0.1/protocol
echo 1 2 >/proc/comx/comx0.1/timeslots
# Ezen az interfeszen SyncPPP vonali protokoll fog futni
# Az interfeszhez rendelt idoszelet: 3 (64 kbit/sec-es vonal)
#
mkdir /proc/comx/comx0.2/
echo slicecom >/proc/comx/comx0.2/boardtype
echo ppp >/proc/comx/comx0.2/protocol
echo 3 >/proc/comx/comx0.2/timeslots
...
ifconfig comx0.1 up
ifconfig comx0.2 up
-----------------------------------------------------------------
A COMX driverek default 20 csomagnyi transmit queue-t rendelnek a halozati
interfeszekhez. WAN halozatokban ennel hosszabbat is szokas hasznalni
(20 es 100 kozott), hogy a vonal kihasznaltsaga nagy terheles eseten jobb
legyen (bar ezzel megno a varhato kesleltetes a csomagok sorban allasa miatt):
# ifconfig comx0 txqueuelen 50
Ezt a beallitasi lehetoseget csak az ujabb disztribuciok ifconfig parancsa
tamogatja (amik mar a 2.2 kernelekhez keszultek, mint a RedHat 6.1 vagy a
Debian 2.2).
A 2.1-es Debian disztribuciohoz a http://www.debian.org/~rcw/2.2/netbase/
cimrol toltheto le ujabb netbase csomag, ami mar ilyet tamogato ifconfig
parancsot tartalmaz. Bovebben a 2.2 kernel hasznalatarol Debian 2.1 alatt:
http://www.debian.org/releases/stable/running-kernel-2.2
-----------------------------------------------------------------
A kartya LED-jeinek jelentese:
piros - eg, ha Remote Alarm-ot kuld a tuloldal
zold - eg, ha a vett jelben megtalalja a keretszinkront
Reszletesebben:
piros: zold: jelentes:
- - nincs keretszinkron (nincs jel, vagy rossz a jel)
- eg "minden rendben"
eg eg a vetel OK, de a tuloldal Remote Alarm-ot kuld
eg - ez nincs ertelmezve, egyelore funkcio nelkul
-----------------------------------------------------------------
Reszletesebb leiras a hardver beallitasi lehetosegeirol:
Az altalanos,- es a protokoll-retegek beallitasi lehetosegeirol a 'comx.txt'
fajlban leirtak SliceCOM kartyanal is ervenyesek, itt csak a hardver-specifikus
beallitasi lehetosegek vannak osszefoglalva:
Konfiguralasi interfesz a /proc/comx/ alatt:
Minden timeslot-csoportnak kulon comx* interfeszt kell letrehozni mkdir-rel:
comx0, comx1, .. stb. Itt beallithato, hogy az adott interfesz hanyadik kartya
melyik timeslotja(i)bol alljon ossze. A Cisco-fele serial3:1 elnevezesek
(serial3:1 = a 3. kartyaban az 1-es idoszelet-csoport) Linuxon aliasing-ot
jelentenenek, ezert mi nem tudunk ilyen elnevezest hasznalni.
Tobb kartya eseten a comx0.1, comx0.2, ... vagy slice0.1, slice0.2 nevek
hasznalhatoak.
Tobb SliceCOM kartya is lehet egy gepben, de sajat interrupt kell mindegyiknek,
nem tud meg megosztott interruptot kezelni.
Az egesz kartyat erinto beallitasok:
Az ioport es irq beallitas nincs: amit a PCI BIOS kioszt a rendszernek,
azt hasznalja a driver.
comx0/boardnum - hanyadik SliceCOM kartya a gepben (a 'termeszetes' PCI
sorrendben ertve: ahogyan a /proc/pci-ban vagy az 'lspci'
kimeneteben megjelenik, altalaban az alaplapi PCI meghajto
aramkorokhoz kozelebb eso kartyak a kisebb sorszamuak)
Default: 0 (0-tol kezdodik a szamolas)
Bar a kovetkezoket csak egy-egy interfeszen allitjuk at, megis az egesz kartya
mukodeset egyszerre allitjak. A megkotes hogy csak UP-ban levo interfeszen
hasznalhatoak, azert van, mert kulonben nem vart eredmenyekre vezetne egy ilyen
paranccsorozat:
echo 0 >boardnum
echo internal >clock_source
echo 1 >boardnum
- Ez a 0-s board clock_source-at allitana at.
Ezek a beallitasok megmaradnak az osszes interfesz torlesekor, de torlodnek
a driver modul ki/betoltesekor.
comx0/clock_source - A Tx orajelforrasa, a Cisco-val hasonlatosra keszult.
Hasznalata:
papaya:# echo line >/proc/comx/comx0/clock_source
papaya:# echo internal >/proc/comx/comx0/clock_source
line - A Tx orajelet a vett adatfolyambol dekodolja, igyekszik
igazodni hozza. Ha nem lat orajelet az inputon, akkor
atall a sajat orajelgeneratorara.
internal - A Tx orajelet a sajat orajelgeneratora szolgaltatja.
Default: line
Normal osszeallitas eseten a tavkozlesi szolgaltato eszkoze
(pl. HDSL modem) adja az orajelet, ezert ez a default.
comx0/framing - A CRC4 ki/be kapcsolasa
A CRC4: 16 PCM keretet (A PCM keret az, amibe a 32 darab 64
kilobites csatorna van bemultiplexalva. Nem osszetevesztendo a HDLC
kerettel.) 2x8 -as csoportokra osztanak, es azokhoz 4-4 bites CRC-t
szamolnak. Elsosorban a vonal minosegenek a monitorozasara szolgal.
papaya:~# echo crc4 >/proc/comx/comx0/framing
papaya:~# echo no-crc4 >/proc/comx/comx0/framing
Default a 'crc4', a MATAV vonalak altalaban igy futnak. De ha nem
egyforma is a beallitas a vonal ket vegen, attol a forgalom altalaban
at tud menni.
comx0/linecode - A vonali kodolas beallitasa
papaya:~# echo hdb3 >/proc/comx/comx0/linecode
papaya:~# echo ami >/proc/comx/comx0/linecode
Default a 'hdb3', a MATAV vonalak igy futnak.
(az AMI kodolas igen ritka E1-es vonalaknal). Ha ez a beallitas nem
egyezik a vonal ket vegen, akkor elofordulhat hogy a keretszinkron
osszejon, de CRC4-hibak es a vonalakon atvitt adatokban is hibak
keletkeznek (amit a HDLC/SyncPPP szinten CRC-hibaval jelez)
comx0/reg - a kartya aramkoreinek, a MUNICH (reg) es a FALC (lbireg)
comx0/lbireg regisztereinek kozvetlen elerese. Hasznalata:
echo >reg 0x04 0x0 - a 4-es regiszterbe 0-t ir
echo >reg 0x104 - printk()-val kiirja a 4-es regiszter
tartalmat a syslogba.
WARNING: ezek csak a fejleszteshez keszultek, sok galibat
lehet veluk okozni!
comx0/loopback - A kartya G.703 jelenek a visszahurkolasara is van lehetoseg:
papaya:# echo none >/proc/comx/comx0/loopback
papaya:# echo local >/proc/comx/comx0/loopback
papaya:# echo remote >/proc/comx/comx0/loopback
none - nincs visszahurkolas, normal mukodes
local - a kartya a sajat maga altal adott jelet kapja vissza
remote - a kartya a kivulrol vett jelet adja kifele
Default: none
-----------------------------------------------------------------
Az interfeszhez (Cisco terminologiaban 'channel-group') kapcsolodo beallitasok:
comx0/timeslots - mely timeslotok (idoszeletek) tartoznak az adott interfeszhez.
papaya:~# cat /proc/comx/comx0/timeslots
1 3 4 5 6
papaya:~#
Egy timeslot megkeresese (hanyas interfeszbe tartozik nalunk):
papaya:~# grep ' 4' /proc/comx/comx*/timeslots
/proc/comx/comx0/timeslots:1 3 4 5 6
papaya:~#
Beallitasa:
papaya:~# echo '1 5 2 6 7 8' >/proc/comx/comx0/timeslots
A timeslotok sorrendje nem szamit, '1 3 2' ugyanaz mint az '1 2 3'.
Beallitashoz az adott interfesznek DOWN-ban kell lennie
(ifconfig comx0 down), de ugyanannak a kartyanak a tobbi interfesze
uzemelhet kozben.
Beallitaskor leellenorzi, hogy az uj timeslotok nem utkoznek-e egy
masik interfesz timeslotjaival. Ha utkoznek, akkor nem allitja at.
Mindig 10-es szamrendszerben tortenik a timeslotok ertelmezese, nehogy
a 08, 09 alaku felirast rosszul ertelmezze.
-----------------------------------------------------------------
Az interfeszek es a kartya allapotanak lekerdezese:
- A ' '-szel kezdodo sorok az eredeti kimenetet, a //-rel kezdodo sorok a
magyarazatot jelzik.
papaya:~$ cat /proc/comx/comx1/status
Interface administrative status is UP, modem status is UP, protocol is UP
Modem status changes: 0, Transmitter status is IDLE, tbusy: 0
Interface load (input): 978376 / 947808 / 951024 bits/s (5s/5m/15m)
(output): 978376 / 947848 / 951024 bits/s (5s/5m/15m)
Debug flags: none
RX errors: len: 22, overrun: 1, crc: 0, aborts: 0
buffer overrun: 0, pbuffer overrun: 0
TX errors: underrun: 0
Line keepalive (value: 10) status UP [0]
// Itt kezdodik a hardver-specifikus resz:
Controller status:
No alarms
// Alarm: hibajelzes:
//
// No alarms - minden rendben
//
// LOS - Loss Of Signal - nem erzekel jelet a bemeneten.
// AIS - Alarm Indication Signal - csak egymas utani 1-esek jonnek
// a bemeneten, a tuloldal igy is jelezheti hogy meghibasodott vagy
// nincs inicializalva.
// AUXP - Auxiliary Pattern Indication - 01010101.. sorozat jon a bemeneten.
// LFA - Loss of Frame Alignment - nincs keretszinkron
// RRA - Receive Remote Alarm - a tuloldal el, de hibat jelez.
// LMFA - Loss of CRC4 Multiframe Alignment - nincs CRC4-multikeret-szinkron
// NMF - No Multiframe alignment Found after 400 msec - ilyen alarm a no-crc4
// es crc4 keretezesek eseten nincs, lasd lentebb
//
// Egyeb lehetseges hibajelzesek:
//
// Transmit Line Short - a kartya ugy erzi hogy az adasi kimenete rovidre
// van zarva, ezert kikapcsolta az adast. (nem feltetlenul veszi eszre
// a kulso rovidzarat)
// A veteli oldal csomagjainak lancolt listai, debug celokra:
Rx ring:
rafutott: 0
lastcheck: 50845731, jiffies: 51314281
base: 017b1858
rx_desc_ptr: 0
rx_desc_ptr: 017b1858
hw_curr_ptr: 017b1858
06040000 017b1868 017b1898 c016ff00
06040000 017b1878 017b1e9c c016ff00
46040000 017b1888 017b24a0 c016ff00
06040000 017b1858 017b2aa4 c016ff00
// A kartyat hasznalo tobbi interfesz: a 0-s channel-group a comx1 interfesz,
// es az 1,2,...,16 timeslotok tartoznak hozza:
Interfaces using this board: (channel-group, interface, timeslots)
0 comx1: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 comx2: 17
2 comx3: 18
3 comx4: 19
4 comx5: 20
5 comx6: 21
6 comx7: 22
7 comx8: 23
8 comx9: 24
9 comx10: 25
10 comx11: 26
11 comx12: 27
12 comx13: 28
13 comx14: 29
14 comx15: 30
15 comx16: 31
// Hany esemenyt kezelt le a driver egy-egy hardver-interrupt kiszolgalasanal:
Interrupt work histogram:
hist[ 0]: 0 hist[ 1]: 2 hist[ 2]: 18574 hist[ 3]: 79
hist[ 4]: 14 hist[ 5]: 1 hist[ 6]: 0 hist[ 7]: 1
hist[ 8]: 0 hist[ 9]: 7
// Hany kikuldendo csomag volt mar a Tx-ringben amikor ujabb lett irva bele:
Tx ring histogram:
hist[ 0]: 2329 hist[ 1]: 0 hist[ 2]: 0 hist[ 3]: 0
// Az E1-interfesz hiba-szamlaloi, az rfc2495-nek megfeleloen:
// (kb. a Cisco routerek "show controllers e1" formatumaban: http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/rbook/rinterfc.htm#xtocid25669126)
Data in current interval (91 seconds elapsed):
9516 Line Code Violations, 65 Path Code Violations, 2 E-Bit Errors
0 Slip Secs, 2 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 11 Unavail Secs
Data in Interval 1 (15 minutes):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in last 4 intervals (1 hour):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in last 96 intervals (24 hours):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
-----------------------------------------------------------------
Nehany kulonlegesebb beallitasi lehetoseg (idovel beepulhetnek majd a driverbe):
Ezekkel sok galibat lehet okozni, nagyon ovatosan kell oket hasznalni!
modified CRC-4, for improved interworking of CRC-4 and non-CRC-4
devices: (lasd page 107 es g706 Annex B)
lbireg[ 0x1b ] |= 0x08
lbireg[ 0x1c ] |= 0xc0
- ilyenkor ertelmezett az NMF - 'No Multiframe alignment Found after
400 msec' alarm.
FALC - a vonali meghajto IC
local loop - a sajat adasomat halljam vissza
remote loop - a kivulrol jovo adast adom vissza
Egy hibakeresesre hasznalhato dolog:
- 1-es timeslot local loop a FALC-ban: echo >lbireg 0x1d 0x21
- local loop kikapcsolasa: echo >lbireg 0x1d 0x00
Documentation/networking/slicecom.txt deleted 100644 → 0
View file @ 240e5464
SliceCOM adapter user's documentation - for the 0.51 driver version
Written by Bartók István <bartoki@itc.hu>
English translation: Lakatos György <gyuri@itc.hu>
Mon Dec 11 15:28:42 CET 2000
Last modified: Wed Aug 29 17:25:37 CEST 2001
-----------------------------------------------------------------
Usage:
Compiling the kernel:
Code maturity level options
[*] Prompt for development and/or incomplete code/drivers
Network device support
Wan interfaces
<M> MultiGate (COMX) synchronous
<M> Support for MUNICH based boards: SliceCOM, PCICOM (NEW)
<M> Support for HDLC and syncPPP...
Loading the modules:
modprobe comx
modprobe comx-proto-ppp # module for Cisco-HDLC and SyncPPP protocols
modprobe comx-hw-munich # the module logs information by the kernel
# about the detected boards
Configuring the board:
# This interface will use the Cisco-HDLC line protocol,
# the timeslices assigned are 1,2 (128 KiBit line speed)
# (the first data timeslice in the G.703 frame is no. 1)
#
mkdir /proc/comx/comx0.1/
echo slicecom >/proc/comx/comx0.1/boardtype
echo hdlc >/proc/comx/comx0.1/protocol
echo 1 2 >/proc/comx/comx0.1/timeslots
# This interface uses SyncPPP line protocol, the assigned
# is no. 3 (64 KiBit line speed)
#
mkdir /proc/comx/comx0.2/
echo slicecom >/proc/comx/comx0.2/boardtype
echo ppp >/proc/comx/comx0.2/protocol
echo 3 >/proc/comx/comx0.2/timeslots
...
ifconfig comx0.1 up
ifconfig comx0.2 up
-----------------------------------------------------------------
The COMX interfaces use a 10 packet transmit queue by default, however WAN
networks sometimes use bigger values (20 to 100), to utilize the line better
by large traffic (though the line delay increases because of more packets
join the queue).
# ifconfig comx0 txqueuelen 50
This option is only supported by the ifconfig command of the later
distributions, which came with 2.2 kernels, such as RedHat 6.1 or Debian 2.2.
You can download a newer netbase packet from
http://www.debian.org/~rcw/2.2/netbase/ for Debian 2.1, which has a new
ifconfig. You can get further information about using 2.2 kernel with
Debian 2.1 from http://www.debian.org/releases/stable/running-kernel-2.2
-----------------------------------------------------------------
The SliceCom LEDs:
red - on, if the interface is unconfigured, or it gets Remote Alarm-s
green - on, if the board finds frame-sync in the received signal
A bit more detailed:
red: green: meaning:
- - no frame-sync, no signal received, or signal SNAFU.
- on "Everything is OK"
on on Reception is ok, but the remote end sends Remote Alarm
on - The interface is unconfigured
-----------------------------------------------------------------
A more detailed description of the hardware setting options:
The general and the protocol layer options described in the 'comx.txt' file
apply to the SliceCom as well, I only summarize the SliceCom hardware specific
settings below.
The '/proc/comx' configuring interface:
An interface directory should be created for every timeslot group with
'mkdir', e,g: 'comx0', 'comx1' etc. The timeslots can be assigned here to the
specific interface. The Cisco-like naming convention (serial3:1 - first
timeslot group of the 3rd. board) can't be used here, because these mean IP
aliasing in Linux.
You can give any meaningful name to keep the configuration clear;
e.g: 'comx0.1', 'comx0.2', 'comx1.1', comx1.2', if you have two boards
with two interfaces each.
Settings, which apply to the board:
Neither 'io' nor 'irq' settings required, the driver uses the resources
given by the PCI BIOS.
comx0/boardnum - board number of the SliceCom in the PC (using the 'natural'
PCI order) as listed in '/proc/pci' or the output of the
'lspci' command, generally the slots nearer to the motherboard
PCI driver chips have the lower numbers.
Default: 0 (the counting starts with 0)
Though the options below are to be set on a single interface, they apply to the
whole board. The restriction, to use them on 'UP' interfaces, is because the
command sequence below could lead to unpredictable results.
# echo 0 >boardnum
# echo internal >clock_source
# echo 1 >boardnum
The sequence would set the clock source of board 0.
These settings will persist after all the interfaces are cleared, but are
cleared when the driver module is unloaded and loaded again.
comx0/clock_source - source of the transmit clock
Usage:
# echo line >/proc/comx/comx0/clock_source
# echo internal >/proc/comx/comx0/clock_source
line - The Tx clock is being decoded if the input data stream,
if no clock seen on the input, then the board will use it's
own clock generator.
internal - The Tx clock is supplied by the builtin clock generator.
Default: line
Normally, the telecommunication company's end device (the HDSL
modem) provides the Tx clock, that's why 'line' is the default.
comx0/framing - Switching CRC4 off/on
CRC4: 16 PCM frames (The 32 64Kibit channels are multiplexed into a
PCM frame, nothing to do with HDLC frames) are divided into 2x8
groups, each group has a 4 bit CRC.
# echo crc4 >/proc/comx/comx0/framing
# echo no-crc4 >/proc/comx/comx0/framing
Default is 'crc4', the Hungarian MATAV lines behave like this.
The traffic generally passes if this setting on both ends don't match.
comx0/linecode - Setting the line coding
# echo hdb3 >/proc/comx/comx0/linecode
# echo ami >/proc/comx/comx0/linecode
Default a 'hdb3', MATAV lines use this.
(AMI coding is rarely used with E1 lines). Frame sync may occur, if
this setting doesn't match the other end's, but CRC4 and data errors
will come, which will result in CRC errors on HDLC/SyncPPP level.
comx0/reg - direct access to the board's MUNICH (reg) and FALC (lbireg)
comx0/lbireg circuit's registers
# echo >reg 0x04 0x0 - write 0 to register 4
# echo >reg 0x104 - write the contents of register 4 with
printk() to syslog
WARNING! These are only for development purposes, messing with this will
result much trouble!
comx0/loopback - Places a loop to the board's G.703 signals
# echo none >/proc/comx/comx0/loopback
# echo local >/proc/comx/comx0/loopback
# echo remote >/proc/comx/comx0/loopback
none - normal operation, no loop
local - the board receives it's own output
remote - the board sends the received data to the remote side
Default: none
-----------------------------------------------------------------
Interface (channel group in Cisco terms) settings:
comx0/timeslots - which timeslots belong to the given interface
Setting:
# echo '1 5 2 6 7 8' >/proc/comx/comx0/timeslots
# cat /proc/comx/comx0/timeslots
1 2 5 6 7 8
#
Finding a timeslot:
# grep ' 4' /proc/comx/comx*/timeslots
/proc/comx/comx0/timeslots:1 3 4 5 6
#
The timeslots can be in any order, '1 2 3' is the same as '1 3 2'.
The interface has to be DOWN during the setting ('ifconfig comx0
down'), but the other interfaces could operate normally.
The driver checks if the assigned timeslots are vacant, if not, then
the setting won't be applied.
The timeslot values are treated as decimal numbers, not to misunderstand
values of 08, 09 form.
-----------------------------------------------------------------
Checking the interface and board status:
- Lines beginning with ' ' (space) belong to the original output, the lines
which begin with '//' are the comments.
papaya:~$ cat /proc/comx/comx1/status
Interface administrative status is UP, modem status is UP, protocol is UP
Modem status changes: 0, Transmitter status is IDLE, tbusy: 0
Interface load (input): 978376 / 947808 / 951024 bits/s (5s/5m/15m)
(output): 978376 / 947848 / 951024 bits/s (5s/5m/15m)
Debug flags: none
RX errors: len: 22, overrun: 1, crc: 0, aborts: 0
buffer overrun: 0, pbuffer overrun: 0
TX errors: underrun: 0
Line keepalive (value: 10) status UP [0]
// The hardware specific part starts here:
Controller status:
No alarms
// Alarm:
//
// No alarms - Everything OK
//
// LOS - Loss Of Signal - No signal sensed on the input
// AIS - Alarm Indication Signal - The remote side sends '11111111'-s,
// it tells, that there's an error condition, or it's not
// initialised.
// AUXP - Auxiliary Pattern Indication - 01010101.. received.
// LFA - Loss of Frame Alignment - no frame sync received.
// RRA - Receive Remote Alarm - the remote end's OK, but signals error cond.
// LMFA - Loss of CRC4 Multiframe Alignment - no CRC4 multiframe sync.
// NMF - No Multiframe alignment Found after 400 msec - no such alarm using
// no-crc4 or crc4 framing, see below.
//
// Other possible error messages:
//
// Transmit Line Short - the board felt, that it's output is short-circuited,
// so it switched the transmission off. (The board can't definitely tell,
// that it's output is short-circuited.)
// Chained list of the received packets, for debug purposes:
Rx ring:
rafutott: 0
lastcheck: 50845731, jiffies: 51314281
base: 017b1858
rx_desc_ptr: 0
rx_desc_ptr: 017b1858
hw_curr_ptr: 017b1858
06040000 017b1868 017b1898 c016ff00
06040000 017b1878 017b1e9c c016ff00
46040000 017b1888 017b24a0 c016ff00
06040000 017b1858 017b2aa4 c016ff00
// All the interfaces using the board: comx1, using the 1,2,...16 timeslots,
// comx2, using timeslot 17, etc.
Interfaces using this board: (channel-group, interface, timeslots)
0 comx1: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 comx2: 17
2 comx3: 18
3 comx4: 19
4 comx5: 20
5 comx6: 21
6 comx7: 22
7 comx8: 23
8 comx9: 24
9 comx10: 25
10 comx11: 26
11 comx12: 27
12 comx13: 28
13 comx14: 29
14 comx15: 30
15 comx16: 31
// The number of events handled by the driver during an interrupt cycle:
Interrupt work histogram:
hist[ 0]: 0 hist[ 1]: 2 hist[ 2]: 18574 hist[ 3]: 79
hist[ 4]: 14 hist[ 5]: 1 hist[ 6]: 0 hist[ 7]: 1
hist[ 8]: 0 hist[ 9]: 7
// The number of packets to send in the Tx ring, when a new one arrived:
Tx ring histogram:
hist[ 0]: 2329 hist[ 1]: 0 hist[ 2]: 0 hist[ 3]: 0
// The error counters of the E1 interface, according to the RFC2495,
// (similar to the Cisco "show controllers e1" command's output:
// http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/rbook/rinterfc.htm#xtocid25669126)
Data in current interval (91 seconds elapsed):
9516 Line Code Violations, 65 Path Code Violations, 2 E-Bit Errors
0 Slip Secs, 2 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 11 Unavail Secs
Data in Interval 1 (15 minutes):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in last 4 intervals (1 hour):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in last 96 intervals (24 hours):
0 Line Code Violations, 0 Path Code Violations, 0 E-Bit Errors
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
-----------------------------------------------------------------
Some unique options, (may get into the driver later):
Treat them very carefully, these can cause much trouble!
modified CRC-4, for improved interworking of CRC-4 and non-CRC-4
devices: (see page 107 and g706 Annex B)
lbireg[ 0x1b ] |= 0x08
lbireg[ 0x1c ] |= 0xc0
- The NMF - 'No Multiframe alignment Found after 400 msec' alarm
comes into account.
FALC - the line driver chip.
local loop - I hear my transmission back.
remote loop - I echo the remote transmission back.
Something useful for finding errors:
- local loop for timeslot 1 in the FALC chip:
# echo >lbireg 0x1d 0x21
- Switching the loop off:
# echo >lbireg 0x1d 0x00
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