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authorXie He <xie.he.0141@gmail.com>2020-11-14 07:09:21 -0800
committerJakub Kicinski <kuba@kernel.org>2020-11-17 13:33:29 -0800
commitf73659192b0bdf7bad826587b3530cef43cc048d (patch)
treef5d863aef20b8cf90e3d80d273cc68488591cded /include/linux/sdla.h
parentfccf111e471d0e608a96844e093bba0147bb8bba (diff)
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net: wan: Delete the DLCI / SDLA drivers
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 8db60bcf3021 ("[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 because the vendor no longer updated the in-kernel WANPIPE driver.)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>
Diffstat (limited to 'include/linux/sdla.h')
-rw-r--r--include/linux/sdla.h240
1 files changed, 0 insertions, 240 deletions
diff --git a/include/linux/sdla.h b/include/linux/sdla.h
deleted file mode 100644
index 00e8b3b614f0..000000000000
--- a/include/linux/sdla.h
+++ /dev/null
@@ -1,240 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * 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
- */
-#ifndef SDLA_H
-#define SDLA_H
-
-#include <uapi/linux/sdla.h>
-
-
-/* important Z80 window addresses */
-#define SDLA_CONTROL_WND 0xE000
-
-#define SDLA_502_CMD_BUF 0xEF60
-#define SDLA_502_RCV_BUF 0xA900
-#define SDLA_502_TXN_AVAIL 0xFFF1
-#define SDLA_502_RCV_AVAIL 0xFFF2
-#define SDLA_502_EVENT_FLAGS 0xFFF3
-#define SDLA_502_MDM_STATUS 0xFFF4
-#define SDLA_502_IRQ_INTERFACE 0xFFFD
-#define SDLA_502_IRQ_PERMISSION 0xFFFE
-#define SDLA_502_DATA_OFS 0x0010
-
-#define SDLA_508_CMD_BUF 0xE000
-#define SDLA_508_TXBUF_INFO 0xF100
-#define SDLA_508_RXBUF_INFO 0xF120
-#define SDLA_508_EVENT_FLAGS 0xF003
-#define SDLA_508_MDM_STATUS 0xF004
-#define SDLA_508_IRQ_INTERFACE 0xF010
-#define SDLA_508_IRQ_PERMISSION 0xF011
-#define SDLA_508_TSE_OFFSET 0xF012
-
-/* Event flags */
-#define SDLA_EVENT_STATUS 0x01
-#define SDLA_EVENT_DLCI_STATUS 0x02
-#define SDLA_EVENT_BAD_DLCI 0x04
-#define SDLA_EVENT_LINK_DOWN 0x40
-
-/* IRQ Trigger flags */
-#define SDLA_INTR_RX 0x01
-#define SDLA_INTR_TX 0x02
-#define SDLA_INTR_MODEM 0x04
-#define SDLA_INTR_COMPLETE 0x08
-#define SDLA_INTR_STATUS 0x10
-#define SDLA_INTR_TIMER 0x20
-
-/* DLCI status bits */
-#define SDLA_DLCI_DELETED 0x01
-#define SDLA_DLCI_ACTIVE 0x02
-#define SDLA_DLCI_WAITING 0x04
-#define SDLA_DLCI_NEW 0x08
-#define SDLA_DLCI_INCLUDED 0x40
-
-/* valid command codes */
-#define SDLA_INFORMATION_WRITE 0x01
-#define SDLA_INFORMATION_READ 0x02
-#define SDLA_ISSUE_IN_CHANNEL_SIGNAL 0x03
-#define SDLA_SET_DLCI_CONFIGURATION 0x10
-#define SDLA_READ_DLCI_CONFIGURATION 0x11
-#define SDLA_DISABLE_COMMUNICATIONS 0x12
-#define SDLA_ENABLE_COMMUNICATIONS 0x13
-#define SDLA_READ_DLC_STATUS 0x14
-#define SDLA_READ_DLC_STATISTICS 0x15
-#define SDLA_FLUSH_DLC_STATISTICS 0x16
-#define SDLA_LIST_ACTIVE_DLCI 0x17
-#define SDLA_FLUSH_INFORMATION_BUFFERS 0x18
-#define SDLA_ADD_DLCI 0x20
-#define SDLA_DELETE_DLCI 0x21
-#define SDLA_ACTIVATE_DLCI 0x22
-#define SDLA_DEACTIVATE_DLCI 0x23
-#define SDLA_READ_MODEM_STATUS 0x30
-#define SDLA_SET_MODEM_STATUS 0x31
-#define SDLA_READ_COMMS_ERR_STATS 0x32
-#define SDLA_FLUSH_COMMS_ERR_STATS 0x33
-#define SDLA_READ_CODE_VERSION 0x40
-#define SDLA_SET_IRQ_TRIGGER 0x50
-#define SDLA_GET_IRQ_TRIGGER 0x51
-
-/* In channel signal types */
-#define SDLA_ICS_LINK_VERIFY 0x02
-#define SDLA_ICS_STATUS_ENQ 0x03
-
-/* modem status flags */
-#define SDLA_MODEM_DTR_HIGH 0x01
-#define SDLA_MODEM_RTS_HIGH 0x02
-#define SDLA_MODEM_DCD_HIGH 0x08
-#define SDLA_MODEM_CTS_HIGH 0x20
-
-/* used for RET_MODEM interpretation */
-#define SDLA_MODEM_DCD_LOW 0x01
-#define SDLA_MODEM_CTS_LOW 0x02
-
-/* return codes */
-#define SDLA_RET_OK 0x00
-#define SDLA_RET_COMMUNICATIONS 0x01
-#define SDLA_RET_CHANNEL_INACTIVE 0x02
-#define SDLA_RET_DLCI_INACTIVE 0x03
-#define SDLA_RET_DLCI_CONFIG 0x04
-#define SDLA_RET_BUF_TOO_BIG 0x05
-#define SDLA_RET_NO_DATA 0x05
-#define SDLA_RET_BUF_OVERSIZE 0x06
-#define SDLA_RET_CIR_OVERFLOW 0x07
-#define SDLA_RET_NO_BUFS 0x08
-#define SDLA_RET_TIMEOUT 0x0A
-#define SDLA_RET_MODEM 0x10
-#define SDLA_RET_CHANNEL_OFF 0x11
-#define SDLA_RET_CHANNEL_ON 0x12
-#define SDLA_RET_DLCI_STATUS 0x13
-#define SDLA_RET_DLCI_UNKNOWN 0x14
-#define SDLA_RET_COMMAND_INVALID 0x1F
-
-/* Configuration flags */
-#define SDLA_DIRECT_RECV 0x0080
-#define SDLA_TX_NO_EXCEPT 0x0020
-#define SDLA_NO_ICF_MSGS 0x1000
-#define SDLA_TX50_RX50 0x0000
-#define SDLA_TX70_RX30 0x2000
-#define SDLA_TX30_RX70 0x4000
-
-/* IRQ selection flags */
-#define SDLA_IRQ_RECEIVE 0x01
-#define SDLA_IRQ_TRANSMIT 0x02
-#define SDLA_IRQ_MODEM_STAT 0x04
-#define SDLA_IRQ_COMMAND 0x08
-#define SDLA_IRQ_CHANNEL 0x10
-#define SDLA_IRQ_TIMER 0x20
-
-/* definitions for PC memory mapping */
-#define SDLA_8K_WINDOW 0x01
-#define SDLA_S502_SEG_A 0x10
-#define SDLA_S502_SEG_C 0x20
-#define SDLA_S502_SEG_D 0x00
-#define SDLA_S502_SEG_E 0x30
-#define SDLA_S507_SEG_A 0x00
-#define SDLA_S507_SEG_B 0x40
-#define SDLA_S507_SEG_C 0x80
-#define SDLA_S507_SEG_E 0xC0
-#define SDLA_S508_SEG_A 0x00
-#define SDLA_S508_SEG_C 0x10
-#define SDLA_S508_SEG_D 0x08
-#define SDLA_S508_SEG_E 0x18
-
-/* SDLA adapter port constants */
-#define SDLA_IO_EXTENTS 0x04
-
-#define SDLA_REG_CONTROL 0x00
-#define SDLA_REG_PC_WINDOW 0x01 /* offset for PC window select latch */
-#define SDLA_REG_Z80_WINDOW 0x02 /* offset for Z80 window select latch */
-#define SDLA_REG_Z80_CONTROL 0x03 /* offset for Z80 control latch */
-
-#define SDLA_S502_STS 0x00 /* status reg for 502, 502E, 507 */
-#define SDLA_S508_GNRL 0x00 /* general purp. reg for 508 */
-#define SDLA_S508_STS 0x01 /* status reg for 508 */
-#define SDLA_S508_IDR 0x02 /* ID reg for 508 */
-
-/* control register flags */
-#define SDLA_S502A_START 0x00 /* start the CPU */
-#define SDLA_S502A_INTREQ 0x02
-#define SDLA_S502A_INTEN 0x04
-#define SDLA_S502A_HALT 0x08 /* halt the CPU */
-#define SDLA_S502A_NMI 0x10 /* issue an NMI to the CPU */
-
-#define SDLA_S502E_CPUEN 0x01
-#define SDLA_S502E_ENABLE 0x02
-#define SDLA_S502E_INTACK 0x04
-
-#define SDLA_S507_ENABLE 0x01
-#define SDLA_S507_IRQ3 0x00
-#define SDLA_S507_IRQ4 0x20
-#define SDLA_S507_IRQ5 0x40
-#define SDLA_S507_IRQ7 0x60
-#define SDLA_S507_IRQ10 0x80
-#define SDLA_S507_IRQ11 0xA0
-#define SDLA_S507_IRQ12 0xC0
-#define SDLA_S507_IRQ15 0xE0
-
-#define SDLA_HALT 0x00
-#define SDLA_CPUEN 0x02
-#define SDLA_MEMEN 0x04
-#define SDLA_S507_EPROMWR 0x08
-#define SDLA_S507_EPROMCLK 0x10
-#define SDLA_S508_INTRQ 0x08
-#define SDLA_S508_INTEN 0x10
-
-struct sdla_cmd {
- char opp_flag;
- char cmd;
- short length;
- char retval;
- short dlci;
- char flags;
- short rxlost_int;
- long rxlost_app;
- char reserve[2];
- char data[SDLA_MAX_DATA]; /* transfer data buffer */
-} __attribute__((packed));
-
-struct intr_info {
- char flags;
- short txlen;
- char irq;
- char flags2;
- short timeout;
-} __attribute__((packed));
-
-/* found in the 508's control window at RXBUF_INFO */
-struct buf_info {
- unsigned short rse_num;
- unsigned long rse_base;
- unsigned long rse_next;
- unsigned long buf_base;
- unsigned short reserved;
- unsigned long buf_top;
-} __attribute__((packed));
-
-/* structure pointed to by rse_base in RXBUF_INFO struct */
-struct buf_entry {
- char opp_flag;
- short length;
- short dlci;
- char flags;
- short timestamp;
- short reserved[2];
- long buf_addr;
-} __attribute__((packed));
-
-#endif