mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
1da177e4c3
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!
40 lines
2.1 KiB
Plaintext
40 lines
2.1 KiB
Plaintext
Frame Relay (FR) support for linux is built into a two tiered system of device
|
|
drivers. The upper layer implements RFC1490 FR specification, and uses the
|
|
Data Link Connection Identifier (DLCI) as its hardware address. Usually these
|
|
are assigned by your network supplier, they give you the number/numbers of
|
|
the Virtual Connections (VC) assigned to you.
|
|
|
|
Each DLCI is a point-to-point link between your machine and a remote one.
|
|
As such, a separate device is needed to accommodate the routing. Within the
|
|
net-tools archives is 'dlcicfg'. This program will communicate with the
|
|
base "DLCI" device, and create new net devices named 'dlci00', 'dlci01'...
|
|
The configuration script will ask you how many DLCIs you need, as well as
|
|
how many DLCIs you want to assign to each Frame Relay Access Device (FRAD).
|
|
|
|
The DLCI uses a number of function calls to communicate with the FRAD, all
|
|
of which are stored in the FRAD's private data area. assoc/deassoc,
|
|
activate/deactivate and dlci_config. The DLCI supplies a receive function
|
|
to the FRAD to accept incoming packets.
|
|
|
|
With this initial offering, only 1 FRAD driver is available. With many thanks
|
|
to Sangoma Technologies, David Mandelstam & Gene Kozin, the S502A, S502E &
|
|
S508 are supported. This driver is currently set up for only FR, but as
|
|
Sangoma makes more firmware modules available, it can be updated to provide
|
|
them as well.
|
|
|
|
Configuration of the FRAD makes use of another net-tools program, 'fradcfg'.
|
|
This program makes use of a configuration file (which dlcicfg can also read)
|
|
to specify the types of boards to be configured as FRADs, as well as perform
|
|
any board specific configuration. The Sangoma module of fradcfg loads the
|
|
FR firmware into the card, sets the irq/port/memory information, and provides
|
|
an initial configuration.
|
|
|
|
Additional FRAD device drivers can be added as hardware is available.
|
|
|
|
At this time, the dlcicfg and fradcfg programs have not been incorporated into
|
|
the net-tools distribution. They can be found at ftp.invlogic.com, in
|
|
/pub/linux. Note that with OS/2 FTPD, you end up in /pub by default, so just
|
|
use 'cd linux'. v0.10 is for use on pre-2.0.3 and earlier, v0.15 is for
|
|
pre-2.0.4 and later.
|
|
|