leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net: wan: Delete the DLCI / SDLA drivers

Browse Source 
The DLCI driver (dlci.c) implements the Frame Relay protocol. However,
we already have another newer and better implementation of Frame Relay
provided by the HDLC_FR driver (hdlc_fr.c).

The DLCI driver's implementation of Frame Relay is used by only one
hardware driver in the kernel - the SDLA driver (sdla.c).

The SDLA driver provides Frame Relay support for the Sangoma S50x devices.
However, the vendor provides their own driver (along with their own
multi-WAN-protocol implementations including Frame Relay), called WANPIPE.
I believe most users of the hardware would use the vendor-provided WANPIPE
driver instead.

(The WANPIPE driver was even once in the kernel, but was deleted in
commit 8db60bcf30 ("[WAN]: Remove broken and unmaintained Sangoma
drivers.") because the vendor no longer updated the in-kernel WANPIPE
driver.)

Cc: Mike McLagan <mike.mclagan@linux.org>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Link: https://lore.kernel.org/r/20201114150921.685594-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Xie He
2020-11-14 07:09:21 -08:00
committed by Jakub Kicinski
parent fccf111e47
commit f73659192b
15 changed files with 0 additions and 2902 deletions
Download Patch File Download Diff File Expand all files Collapse all files

123
include/uapi/linux/if_frad.h
View File

@@ -1,123 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are
* created for each DLCI associated with a FRAD. The FRAD driver
* is not truly a network device, but the lower level device
* handler. This allows other FRAD manufacturers to use the DLCI
* code, including its RFC1490 encapsulation alongside the current
* implementation for the Sangoma cards.
*
* Version: @(#)if_ifrad.h 0.15 31 Mar 96
*
* Author: Mike McLagan <mike.mclagan@linux.org>
*
* Changes:
* 0.15 Mike McLagan changed structure defs (packed)
* re-arranged flags
* added DLCI_RET vars
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _UAPI_FRAD_H_
#define _UAPI_FRAD_H_
#include <linux/if.h>
/* Structures and constants associated with the DLCI device driver */
struct dlci_add
{
char devname[IFNAMSIZ];
short dlci;
};
#define DLCI_GET_CONF (SIOCDEVPRIVATE + 2)
#define DLCI_SET_CONF (SIOCDEVPRIVATE + 3)
/*
* These are related to the Sangoma SDLA and should remain in order.
* Code within the SDLA module is based on the specifics of this
* structure. Change at your own peril.
*/
struct dlci_conf {
short flags;
short CIR_fwd;
short Bc_fwd;
short Be_fwd;
short CIR_bwd;
short Bc_bwd;
short Be_bwd;
/* these are part of the status read */
short Tc_fwd;
short Tc_bwd;
short Tf_max;
short Tb_max;
/* add any new fields here above is a mirror of sdla_dlci_conf */
};
#define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4)
/* configuration flags for DLCI */
#define DLCI_IGNORE_CIR_OUT 0x0001
#define DLCI_ACCOUNT_CIR_IN 0x0002
#define DLCI_BUFFER_IF 0x0008
#define DLCI_VALID_FLAGS 0x000B
/* defines for the actual Frame Relay hardware */
#define FRAD_GET_CONF (SIOCDEVPRIVATE)
#define FRAD_SET_CONF (SIOCDEVPRIVATE + 1)
#define FRAD_LAST_IOCTL FRAD_SET_CONF
/*
* Based on the setup for the Sangoma SDLA. If changes are
* necessary to this structure, a routine will need to be
* added to that module to copy fields.
*/
struct frad_conf
{
short station;
short flags;
short kbaud;
short clocking;
short mtu;
short T391;
short T392;
short N391;
short N392;
short N393;
short CIR_fwd;
short Bc_fwd;
short Be_fwd;
short CIR_bwd;
short Bc_bwd;
short Be_bwd;
/* Add new fields here, above is a mirror of the sdla_conf */
};
#define FRAD_STATION_CPE 0x0000
#define FRAD_STATION_NODE 0x0001
#define FRAD_TX_IGNORE_CIR 0x0001
#define FRAD_RX_ACCOUNT_CIR 0x0002
#define FRAD_DROP_ABORTED 0x0004
#define FRAD_BUFFERIF 0x0008
#define FRAD_STATS 0x0010
#define FRAD_MCI 0x0100
#define FRAD_AUTODLCI 0x8000
#define FRAD_VALID_FLAGS 0x811F
#define FRAD_CLOCK_INT 0x0001
#define FRAD_CLOCK_EXT 0x0000
#endif /* _UAPI_FRAD_H_ */

117
include/uapi/linux/sdla.h
View File

@@ -1,117 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Global definitions for the Frame relay interface.
*
* Version: @(#)if_ifrad.h 0.20 13 Apr 96
*
* Author: Mike McLagan <mike.mclagan@linux.org>
*
* Changes:
* 0.15 Mike McLagan Structure packing
*
* 0.20 Mike McLagan New flags for S508 buffer handling
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _UAPISDLA_H
#define _UAPISDLA_H
/* adapter type */
#define SDLA_TYPES
#define SDLA_S502A 5020
#define SDLA_S502E 5021
#define SDLA_S503 5030
#define SDLA_S507 5070
#define SDLA_S508 5080
#define SDLA_S509 5090
#define SDLA_UNKNOWN -1
/* port selection flags for the S508 */
#define SDLA_S508_PORT_V35 0x00
#define SDLA_S508_PORT_RS232 0x02
/* Z80 CPU speeds */
#define SDLA_CPU_3M 0x00
#define SDLA_CPU_5M 0x01
#define SDLA_CPU_7M 0x02
#define SDLA_CPU_8M 0x03
#define SDLA_CPU_10M 0x04
#define SDLA_CPU_16M 0x05
#define SDLA_CPU_12M 0x06
/* some private IOCTLs */
#define SDLA_IDENTIFY (FRAD_LAST_IOCTL + 1)
#define SDLA_CPUSPEED (FRAD_LAST_IOCTL + 2)
#define SDLA_PROTOCOL (FRAD_LAST_IOCTL + 3)
#define SDLA_CLEARMEM (FRAD_LAST_IOCTL + 4)
#define SDLA_WRITEMEM (FRAD_LAST_IOCTL + 5)
#define SDLA_READMEM (FRAD_LAST_IOCTL + 6)
struct sdla_mem {
int addr;
int len;
void __user *data;
};
#define SDLA_START (FRAD_LAST_IOCTL + 7)
#define SDLA_STOP (FRAD_LAST_IOCTL + 8)
/* some offsets in the Z80's memory space */
#define SDLA_NMIADDR 0x0000
#define SDLA_CONF_ADDR 0x0010
#define SDLA_S502A_NMIADDR 0x0066
#define SDLA_CODE_BASEADDR 0x0100
#define SDLA_WINDOW_SIZE 0x2000
#define SDLA_ADDR_MASK 0x1FFF
/* largest handleable block of data */
#define SDLA_MAX_DATA 4080
#define SDLA_MAX_MTU 4072 /* MAX_DATA - sizeof(fradhdr) */
#define SDLA_MAX_DLCI 24
/* this should be the same as frad_conf */
struct sdla_conf {
short station;
short config;
short kbaud;
short clocking;
short max_frm;
short T391;
short T392;
short N391;
short N392;
short N393;
short CIR_fwd;
short Bc_fwd;
short Be_fwd;
short CIR_bwd;
short Bc_bwd;
short Be_bwd;
};
/* this should be the same as dlci_conf */
struct sdla_dlci_conf {
short config;
short CIR_fwd;
short Bc_fwd;
short Be_fwd;
short CIR_bwd;
short Bc_bwd;
short Be_bwd;
short Tc_fwd;
short Tc_bwd;
short Tf_max;
short Tb_max;
};
#endif /* _UAPISDLA_H */