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net: documentation: build a directory structure for drivers

Browse Source 
Documentation/networking/ is full of cryptically named files with
driver documentation.  This makes finding interesting information
at a glance really hard.  Move all those files into a directory
called device_drivers (since not all drivers are for device) and
fix up references.

RFC v0.1 -> RFC v1:
 - also add .txt suffix to the files which are missing it (Quentin)

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Henrik Austad <henrik@austad.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2018-12-03 17:43:28 -08:00
committed by David S. Miller
parent a74f0fa082
commit b255e500c8
58 changed files with 71 additions and 66 deletions
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541
Documentation/networking/device_drivers/ti/cpsw.txt Normal file
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* Texas Instruments CPSW ethernet driver
Multiqueue & CBS & MQPRIO
=====================================================================
=====================================================================
The cpsw has 3 CBS shapers for each external ports. This document
describes MQPRIO and CBS Qdisc offload configuration for cpsw driver
based on examples. It potentially can be used in audio video bridging
(AVB) and time sensitive networking (TSN).
The following examples were tested on AM572x EVM and BBB boards.
Test setup
==========
Under consideration two examples with AM572x EVM running cpsw driver
in dual_emac mode.
Several prerequisites:
- TX queues must be rated starting from txq0 that has highest priority
- Traffic classes are used starting from 0, that has highest priority
- CBS shapers should be used with rated queues
- The bandwidth for CBS shapers has to be set a little bit more then
potential incoming rate, thus, rate of all incoming tx queues has
to be a little less
- Real rates can differ, due to discreetness
- Map skb-priority to txq is not enough, also skb-priority to l2 prio
map has to be created with ip or vconfig tool
- Any l2/socket prio (0 - 7) for classes can be used, but for
simplicity default values are used: 3 and 2
- only 2 classes tested: A and B, but checked and can work with more,
maximum allowed 4, but only for 3 rate can be set.
Test setup for examples
=======================
+-------------------------------+
|--+ |
| | Workstation0 |
|E | MAC 18:03:73:66:87:42 |
+-----------------------------+ +--|t | |
| | 1 | E | | |h |./tsn_listener -d \ |
| Target board: | 0 | t |--+ |0 | 18:03:73:66:87:42 -i eth0 \|
| AM572x EVM | 0 | h | | | -s 1500 |
| | 0 | 0 | |--+ |
| Only 2 classes: |Mb +---| +-------------------------------+
| class A, class B | |
| | +---| +-------------------------------+
| | 1 | E | |--+ |
| | 0 | t | | | Workstation1 |
| | 0 | h |--+ |E | MAC 20:cf:30:85:7d:fd |
| |Mb | 1 | +--|t | |
+-----------------------------+ |h |./tsn_listener -d \ |
|0 | 20:cf:30:85:7d:fd -i eth0 \|
| | -s 1500 |
|--+ |
+-------------------------------+
*********************************************************************
*********************************************************************
*********************************************************************
Example 1: One port tx AVB configuration scheme for target board
----------------------------------------------------------------------
(prints and scheme for AM572x evm, applicable for single port boards)
tc - traffic class
txq - transmit queue
p - priority
f - fifo (cpsw fifo)
S - shaper configured
+------------------------------------------------------------------+ u
| +---------------+ +---------------+ +------+ +------+ | s
| | | | | | | | | | e
| | App 1 | | App 2 | | Apps | | Apps | | r
| | Class A | | Class B | | Rest | | Rest | |
| | Eth0 | | Eth0 | | Eth0 | | Eth1 | | s
| | VLAN100 | | VLAN100 | | | | | | | | p
| | 40 Mb/s | | 20 Mb/s | | | | | | | | a
| | SO_PRIORITY=3 | | SO_PRIORITY=2 | | | | | | | | c
| | | | | | | | | | | | | | e
| +---|-----------+ +---|-----------+ +---|--+ +---|--+ |
+-----|------------------|------------------|--------|-------------+
+-+ +------------+ | |
| | +-----------------+ +--+
| | | |
+---|-------|-------------|-----------------------|----------------+
| +----+ +----+ +----+ +----+ +----+ |
| | p3 | | p2 | | p1 | | p0 | | p0 | | k
| \ / \ / \ / \ / \ / | e
| \ / \ / \ / \ / \ / | r
| \/ \/ \/ \/ \/ | n
| | | | | | e
| | | +-----+ | | l
| | | | | |
| +----+ +----+ +----+ +----+ | s
| |tc0 | |tc1 | |tc2 | |tc0 | | p
| \ / \ / \ / \ / | a
| \ / \ / \ / \ / | c
| \/ \/ \/ \/ | e
| | | +-----+ | |
| | | | | | |
| | | | | | |
| | | | | | |
| +----+ +----+ +----+ +----+ +----+ |
| |txq0| |txq1| |txq2| |txq3| |txq4| |
| \ / \ / \ / \ / \ / |
| \ / \ / \ / \ / \ / |
| \/ \/ \/ \/ \/ |
| +-|------|------|------|--+ +--|--------------+ |
| | | | | | | Eth0.100 | | Eth1 | |
+---|------|------|------|------------------------|----------------+
| | | | |
p p p p |
3 2 0-1, 4-7 <- L2 priority |
| | | | |
| | | | |
+---|------|------|------|------------------------|----------------+
| | | | | |----------+ |
| +----+ +----+ +----+ +----+ +----+ |
| |dma7| |dma6| |dma5| |dma4| |dma3| |
| \ / \ / \ / \ / \ / | c
| \S / \S / \ / \ / \ / | p
| \/ \/ \/ \/ \/ | s
| | | | +----- | | w
| | | | | | |
| | | | | | | d
| +----+ +----+ +----+p p+----+ | r
| | | | | | |o o| | | i
| | f3 | | f2 | | f0 |r r| f0 | | v
| |tc0 | |tc1 | |tc2 |t t|tc0 | | e
| \CBS / \CBS / \CBS /1 2\CBS / | r
| \S / \S / \ / \ / |
| \/ \/ \/ \/ |
+------------------------------------------------------------------+
========================================Eth==========================>
1)
// Add 4 tx queues, for interface Eth0, and 1 tx queue for Eth1
$ ethtool -L eth0 rx 1 tx 5
rx unmodified, ignoring
2)
// Check if num of queues is set correctly:
$ ethtool -l eth0
Channel parameters for eth0:
Pre-set maximums:
RX: 8
TX: 8
Other: 0
Combined: 0
Current hardware settings:
RX: 1
TX: 5
Other: 0
Combined: 0
3)
// TX queues must be rated starting from 0, so set bws for tx0 and tx1
// Set rates 40 and 20 Mb/s appropriately.
// Pay attention, real speed can differ a bit due to discreetness.
// Leave last 2 tx queues not rated.
$ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
$ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
4)
// Check maximum rate of tx (cpdma) queues:
$ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
40
20
0
0
0
5)
// Map skb->priority to traffic class:
// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
// Map traffic class to transmit queue:
// tc0 -> txq0, tc1 -> txq1, tc2 -> (txq2, txq3)
$ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 1
5a)
// As two interface sharing same set of tx queues, assign all traffic
// coming to interface Eth1 to separate queue in order to not mix it
// with traffic from interface Eth0, so use separate txq to send
// packets to Eth1, so all prio -> tc0 and tc0 -> txq4
// Here hw 0, so here still default configuration for eth1 in hw
$ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 1 \
map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 1@4 hw 0
6)
// Check classes settings
$ tc -g class show dev eth0
+---(100:ffe2) mqprio
| +---(100:3) mqprio
| +---(100:4) mqprio
|
+---(100:ffe1) mqprio
| +---(100:2) mqprio
|
+---(100:ffe0) mqprio
+---(100:1) mqprio
$ tc -g class show dev eth1
+---(100:ffe0) mqprio
+---(100:5) mqprio
7)
// Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc
// Set it +1 Mb for reserve (important!)
// here only idle slope is important, others arg are ignored
// Pay attention, real speed can differ a bit due to discreetness
$ tc qdisc add dev eth0 parent 100:1 cbs locredit -1438 \
hicredit 62 sendslope -959000 idleslope 41000 offload 1
net eth0: set FIFO3 bw = 50
8)
// Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc:
// Set it +1 Mb for reserve (important!)
$ tc qdisc add dev eth0 parent 100:2 cbs locredit -1468 \
hicredit 65 sendslope -979000 idleslope 21000 offload 1
net eth0: set FIFO2 bw = 30
9)
// Create vlan 100 to map sk->priority to vlan qos
$ ip link add link eth0 name eth0.100 type vlan id 100
8021q: 802.1Q VLAN Support v1.8
8021q: adding VLAN 0 to HW filter on device eth0
8021q: adding VLAN 0 to HW filter on device eth1
net eth0: Adding vlanid 100 to vlan filter
10)
// Map skb->priority to L2 prio, 1 to 1
$ ip link set eth0.100 type vlan \
egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
11)
// Check egress map for vlan 100
$ cat /proc/net/vlan/eth0.100
[...]
INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
12)
// Run your appropriate tools with socket option "SO_PRIORITY"
// to 3 for class A and/or to 2 for class B
// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
13)
// run your listener on workstation (should be in same vlan)
// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39000 kbps
14)
// Restore default configuration if needed
$ ip link del eth0.100
$ tc qdisc del dev eth1 root
$ tc qdisc del dev eth0 root
net eth0: Prev FIFO2 is shaped
net eth0: set FIFO3 bw = 0
net eth0: set FIFO2 bw = 0
$ ethtool -L eth0 rx 1 tx 1
*********************************************************************
*********************************************************************
*********************************************************************
Example 2: Two port tx AVB configuration scheme for target board
----------------------------------------------------------------------
(prints and scheme for AM572x evm, for dual emac boards only)
+------------------------------------------------------------------+ u
| +----------+ +----------+ +------+ +----------+ +----------+ | s
| | | | | | | | | | | | e
| | App 1 | | App 2 | | Apps | | App 3 | | App 4 | | r
| | Class A | | Class B | | Rest | | Class B | | Class A | |
| | Eth0 | | Eth0 | | | | | Eth1 | | Eth1 | | s
| | VLAN100 | | VLAN100 | | | | | VLAN100 | | VLAN100 | | p
| | 40 Mb/s | | 20 Mb/s | | | | | 10 Mb/s | | 30 Mb/s | | a
| | SO_PRI=3 | | SO_PRI=2 | | | | | SO_PRI=3 | | SO_PRI=2 | | c
| | | | | | | | | | | | | | | | | e
| +---|------+ +---|------+ +---|--+ +---|------+ +---|------+ |
+-----|-------------|-------------|---------|-------------|--------+
+-+ +-------+ | +----------+ +----+
| | +-------+------+ | |
| | | | | |
+---|-------|-------------|--------------|-------------|-------|---+
| +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
| | p3 | | p2 | | p1 | | p0 | | p0 | | p1 | | p2 | | p3 | | k
| \ / \ / \ / \ / \ / \ / \ / \ / | e
| \ / \ / \ / \ / \ / \ / \ / \ / | r
| \/ \/ \/ \/ \/ \/ \/ \/ | n
| | | | | | | | e
| | | +----+ +----+ | | | l
| | | | | | | |
| +----+ +----+ +----+ +----+ +----+ +----+ | s
| |tc0 | |tc1 | |tc2 | |tc2 | |tc1 | |tc0 | | p
| \ / \ / \ / \ / \ / \ / | a
| \ / \ / \ / \ / \ / \ / | c
| \/ \/ \/ \/ \/ \/ | e
| | | +-----+ +-----+ | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | E E | | | | |
| +----+ +----+ +----+ +----+ t t +----+ +----+ +----+ +----+ |
| |txq0| |txq1| |txq4| |txq5| h h |txq6| |txq7| |txq3| |txq2| |
| \ / \ / \ / \ / 0 1 \ / \ / \ / \ / |
| \ / \ / \ / \ / . . \ / \ / \ / \ / |
| \/ \/ \/ \/ 1 1 \/ \/ \/ \/ |
| +-|------|------|------|--+ 0 0 +-|------|------|------|--+ |
| | | | | | | 0 0 | | | | | | |
+---|------|------|------|---------------|------|------|------|----+
| | | | | | | |
p p p p p p p p
3 2 0-1, 4-7 <-L2 pri-> 0-1, 4-7 2 3
| | | | | | | |
| | | | | | | |
+---|------|------|------|---------------|------|------|------|----+
| | | | | | | | | |
| +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
| |dma7| |dma6| |dma3| |dma2| |dma1| |dma0| |dma4| |dma5| |
| \ / \ / \ / \ / \ / \ / \ / \ / | c
| \S / \S / \ / \ / \ / \ / \S / \S / | p
| \/ \/ \/ \/ \/ \/ \/ \/ | s
| | | | +----- | | | | | w
| | | | | +----+ | | | |
| | | | | | | | | | d
| +----+ +----+ +----+p p+----+ +----+ +----+ | r
| | | | | | |o o| | | | | | | i
| | f3 | | f2 | | f0 |r CPSW r| f3 | | f2 | | f0 | | v
| |tc0 | |tc1 | |tc2 |t t|tc0 | |tc1 | |tc2 | | e
| \CBS / \CBS / \CBS /1 2\CBS / \CBS / \CBS / | r
| \S / \S / \ / \S / \S / \ / |
| \/ \/ \/ \/ \/ \/ |
+------------------------------------------------------------------+
========================================Eth==========================>
1)
// Add 8 tx queues, for interface Eth0, but they are common, so are accessed
// by two interfaces Eth0 and Eth1.
$ ethtool -L eth1 rx 1 tx 8
rx unmodified, ignoring
2)
// Check if num of queues is set correctly:
$ ethtool -l eth0
Channel parameters for eth0:
Pre-set maximums:
RX: 8
TX: 8
Other: 0
Combined: 0
Current hardware settings:
RX: 1
TX: 8
Other: 0
Combined: 0
3)
// TX queues must be rated starting from 0, so set bws for tx0 and tx1 for Eth0
// and for tx2 and tx3 for Eth1. That is, rates 40 and 20 Mb/s appropriately
// for Eth0 and 30 and 10 Mb/s for Eth1.
// Real speed can differ a bit due to discreetness
// Leave last 4 tx queues as not rated
$ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
$ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
$ echo 30 > /sys/class/net/eth1/queues/tx-2/tx_maxrate
$ echo 10 > /sys/class/net/eth1/queues/tx-3/tx_maxrate
4)
// Check maximum rate of tx (cpdma) queues:
$ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
40
20
30
10
0
0
0
0
5)
// Map skb->priority to traffic class for Eth0:
// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
// Map traffic class to transmit queue:
// tc0 -> txq0, tc1 -> txq1, tc2 -> (txq4, txq5)
$ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@4 hw 1
6)
// Check classes settings
$ tc -g class show dev eth0
+---(100:ffe2) mqprio
| +---(100:5) mqprio
| +---(100:6) mqprio
|
+---(100:ffe1) mqprio
| +---(100:2) mqprio
|
+---(100:ffe0) mqprio
+---(100:1) mqprio
7)
// Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc for Eth0
// here only idle slope is important, others ignored
// Real speed can differ a bit due to discreetness
$ tc qdisc add dev eth0 parent 100:1 cbs locredit -1470 \
hicredit 62 sendslope -959000 idleslope 41000 offload 1
net eth0: set FIFO3 bw = 50
8)
// Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc for Eth0
$ tc qdisc add dev eth0 parent 100:2 cbs locredit -1470 \
hicredit 65 sendslope -979000 idleslope 21000 offload 1
net eth0: set FIFO2 bw = 30
9)
// Create vlan 100 to map sk->priority to vlan qos for Eth0
$ ip link add link eth0 name eth0.100 type vlan id 100
net eth0: Adding vlanid 100 to vlan filter
10)
// Map skb->priority to L2 prio for Eth0.100, one to one
$ ip link set eth0.100 type vlan \
egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
11)
// Check egress map for vlan 100
$ cat /proc/net/vlan/eth0.100
[...]
INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
12)
// Map skb->priority to traffic class for Eth1:
// 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
// Map traffic class to transmit queue:
// tc0 -> txq2, tc1 -> txq3, tc2 -> (txq6, txq7)
$ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@2 1@3 2@6 hw 1
13)
// Check classes settings
$ tc -g class show dev eth1
+---(100:ffe2) mqprio
| +---(100:7) mqprio
| +---(100:8) mqprio
|
+---(100:ffe1) mqprio
| +---(100:4) mqprio
|
+---(100:ffe0) mqprio
+---(100:3) mqprio
14)
// Set rate for class A - 31 Mbit (tc0, txq2) using CBS Qdisc for Eth1
// here only idle slope is important, others ignored, but calculated
// for interface speed - 100Mb for eth1 port.
// Set it +1 Mb for reserve (important!)
$ tc qdisc add dev eth1 parent 100:3 cbs locredit -1035 \
hicredit 465 sendslope -69000 idleslope 31000 offload 1
net eth1: set FIFO3 bw = 31
15)
// Set rate for class B - 11 Mbit (tc1, txq3) using CBS Qdisc for Eth1
// Set it +1 Mb for reserve (important!)
$ tc qdisc add dev eth1 parent 100:4 cbs locredit -1335 \
hicredit 405 sendslope -89000 idleslope 11000 offload 1
net eth1: set FIFO2 bw = 11
16)
// Create vlan 100 to map sk->priority to vlan qos for Eth1
$ ip link add link eth1 name eth1.100 type vlan id 100
net eth1: Adding vlanid 100 to vlan filter
17)
// Map skb->priority to L2 prio for Eth1.100, one to one
$ ip link set eth1.100 type vlan \
egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
18)
// Check egress map for vlan 100
$ cat /proc/net/vlan/eth1.100
[...]
INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
19)
// Run appropriate tools with socket option "SO_PRIORITY" to 3
// for class A and to 2 for class B. For both interfaces
./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p2 -s 1500&
./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p3 -s 1500&
20)
// run your listener on workstation (should be in same vlan)
// (I took at https://www.spinics.net/lists/netdev/msg460869.html)
./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39012 kbps
Receiving data rate: 39000 kbps
21)
// Restore default configuration if needed
$ ip link del eth1.100
$ ip link del eth0.100
$ tc qdisc del dev eth1 root
net eth1: Prev FIFO2 is shaped
net eth1: set FIFO3 bw = 0
net eth1: set FIFO2 bw = 0
$ tc qdisc del dev eth0 root
net eth0: Prev FIFO2 is shaped
net eth0: set FIFO3 bw = 0
net eth0: set FIFO2 bw = 0
$ ethtool -L eth0 rx 1 tx 1

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Documentation/networking/device_drivers/ti/tlan.txt Normal file
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(C) 1997-1998 Caldera, Inc.
(C) 1998 James Banks
(C) 1999-2001 Torben Mathiasen <tmm@image.dk, torben.mathiasen@compaq.com>
For driver information/updates visit http://www.compaq.com
TLAN driver for Linux, version 1.14a
README
I. Supported Devices.
Only PCI devices will work with this driver.
Supported:
Vendor ID Device ID Name
0e11 ae32 Compaq Netelligent 10/100 TX PCI UTP
0e11 ae34 Compaq Netelligent 10 T PCI UTP
0e11 ae35 Compaq Integrated NetFlex 3/P
0e11 ae40 Compaq Netelligent Dual 10/100 TX PCI UTP
0e11 ae43 Compaq Netelligent Integrated 10/100 TX UTP
0e11 b011 Compaq Netelligent 10/100 TX Embedded UTP
0e11 b012 Compaq Netelligent 10 T/2 PCI UTP/Coax
0e11 b030 Compaq Netelligent 10/100 TX UTP
0e11 f130 Compaq NetFlex 3/P
0e11 f150 Compaq NetFlex 3/P
108d 0012 Olicom OC-2325
108d 0013 Olicom OC-2183
108d 0014 Olicom OC-2326
Caveats:
I am not sure if 100BaseTX daughterboards (for those cards which
support such things) will work. I haven't had any solid evidence
either way.
However, if a card supports 100BaseTx without requiring an add
on daughterboard, it should work with 100BaseTx.
The "Netelligent 10 T/2 PCI UTP/Coax" (b012) device is untested,
but I do not expect any problems.
II. Driver Options
1. You can append debug=x to the end of the insmod line to get
debug messages, where x is a bit field where the bits mean
the following:
0x01 Turn on general debugging messages.
0x02 Turn on receive debugging messages.
0x04 Turn on transmit debugging messages.
0x08 Turn on list debugging messages.
2. You can append aui=1 to the end of the insmod line to cause
the adapter to use the AUI interface instead of the 10 Base T
interface. This is also what to do if you want to use the BNC
connector on a TLAN based device. (Setting this option on a
device that does not have an AUI/BNC connector will probably
cause it to not function correctly.)
3. You can set duplex=1 to force half duplex, and duplex=2 to
force full duplex.
4. You can set speed=10 to force 10Mbs operation, and speed=100
to force 100Mbs operation. (I'm not sure what will happen
if a card which only supports 10Mbs is forced into 100Mbs
mode.)
5. You have to use speed=X duplex=Y together now. If you just
do "insmod tlan.o speed=100" the driver will do Auto-Neg.
To force a 10Mbps Half-Duplex link do "insmod tlan.o speed=10
duplex=1".
6. If the driver is built into the kernel, you can use the 3rd
and 4th parameters to set aui and debug respectively. For
example:
ether=0,0,0x1,0x7,eth0
This sets aui to 0x1 and debug to 0x7, assuming eth0 is a
supported TLAN device.
The bits in the third byte are assigned as follows:
0x01 = aui
0x02 = use half duplex
0x04 = use full duplex
0x08 = use 10BaseT
0x10 = use 100BaseTx
You also need to set both speed and duplex settings when forcing
speeds with kernel-parameters.
ether=0,0,0x12,0,eth0 will force link to 100Mbps Half-Duplex.
7. If you have more than one tlan adapter in your system, you can
use the above options on a per adapter basis. To force a 100Mbit/HD
link with your eth1 adapter use:
insmod tlan speed=0,100 duplex=0,1
Now eth0 will use auto-neg and eth1 will be forced to 100Mbit/HD.
Note that the tlan driver supports a maximum of 8 adapters.
III. Things to try if you have problems.
1. Make sure your card's PCI id is among those listed in
section I, above.
2. Make sure routing is correct.
3. Try forcing different speed/duplex settings
There is also a tlan mailing list which you can join by sending "subscribe tlan"
in the body of an email to majordomo@vuser.vu.union.edu.
There is also a tlan website at http://www.compaq.com