4.4BSD/usr/src/sys/vax/if/ACC/driver/if_ddavar.h
/*************************************************************************/
/* */
/* */
/* ________________________________________________________ */
/* / \ */
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/* \________________________________________________________/ */
/* */
/* Copyright (c) 1986 by Advanced Computer Communications */
/* 720 Santa Barbara Street, Santa Barbara, California 93101 */
/* (805) 963-9431 */
/* */
/* */
/* File: ddavar.h */
/* When this file is copied to the /sys/vaxif */
/* directory, it is renamed 'if_ddavar.h'. */
/* */
/* Project: UNIX 4.n BSD DDA-X.25 Network Interface Driver */
/* for ACP 5250 and ACP 6250 */
/* */
/* Function: This file contains definitions used to control */
/* and track the status of the ACP 5250/6250. */
/* The values for the Set System Parameter Messages */
/* are located here. Note that the values are the */
/* same as those for ACP 625 for compatibility. */
/* */
/* Revision History at end of file */
/*************************************************************************/
#if defined(DDA_PADOPT) || defined(DDA_RAWOPT)
# define DDA_PAD_OR_RAW
#endif
#define NDDACH 126 /* maximum number of channels */
#define NDDACH_DEFAULT 64 /* default number of channels */
/* path numbers (also called logical channel numbers, or lcns) */
#define DDA_SUPR 0x00 /* supervisory path for control */
#define ALL_CHANS 0xff /* denotes all LCNs */
/* the following 2 defines (MAXADDRLEN and MINADDRLEN) give the max and min
* length X25 addresses. These numbers include 1 byte to hold the length
* of the address. Thus the normal value of MAXADDRLEN is 15, for 14-digit
* X.25 addresses; MAXADDRLEN can never be greater than 16 (15-digit addr).
*/
#define MAXADDRLEN 16 /* max length of an X.25 address */
#define MINADDRLEN 1 /* min length of an X.25 address */
#define TRANSPAC 1 /* network type for TRANSPAC (def=0) */
#define DDAMTU 1006 /* maximum IP msg length */
#define DDA_OQMAX 8 /* max IP msgs on LCN output q */
#define DDA_TIMEOUT 10 /* dda timer interval, in seconds */
/* definitions for the DC_FLAGS byte of the dda_cb structure */
/* bits in dc_flags */
#define DC_OBUSY 0x01
#define DC_CLIENTS 0x0e
#define DC_IP 0x00 /* this channel is being used for IP traffic */
#define DC_X29 0x02 /* this channel is being used for X29 traffic */
#define DC_X29W 0x04 /* this channel waiting for x29 connection */
#define DC_RAW 0x08 /* this is a raw X25 channel */
#define DC_IPEND 0x10 /* input pending */
/* bits in hc_sbfc (which is the wrong place) */
#define INVALID_MBUF 0x01 /* Used to clear outstanding I/O */
typedef unsigned char byte;
typedef int boolean;
/* X25 LCN state definitions (in dc_state) */
#define LC_DOWN 0 /* X25 circuit down */
#define LC_RESTART 1 /* X25 circuit restarting */
#define LC_IDLE 2 /* X25 circuit not in use */
#define LC_CALL_PENDING 3 /* X25 circuit call pending */
#define LC_DATA_IDLE 4 /* X25 circuit open */
#define LC_CLR_PENDING 5 /* X25 circuit clear pending */
/* Timeout definitions (in dc_timer and dc_out_t) */
#define TMO_OFF 0 /* timer off */
#define TMO_RESTART ( 90/DDA_TIMEOUT) /* restart timeout */
#define TMO_CALL_PENDING (180/DDA_TIMEOUT) /* call timeout */
#define TMO_DATA_IDLE (600/DDA_TIMEOUT) /* idle circuit timeout */
#define TMO_CLR_PENDING (380/DDA_TIMEOUT) /* clear timeout */
/* Link status codes (third byte of LINE_STATUS message) */
#define LINK_DOWN 0x00 /* Link layer is down */
#define LINK_UP 0x01 /* Link layer is up */
#define LINK_DISABLED 0x02 /* Link layer is disabled */
/* The following parameter modification commands such as BAUD_CNTL, */
/* or WATCHDOG, are one-byte values containing size and ID followed */
/* by 0-2 bytes of parameter information. The number of bytes of */
/* parameter information is specified in the most significant 2 bits */
/* of the command, the other 6 bits are the ID. A 00, 01, or 10 */
/* specify respectively 0, 1, or 2 bytes of parameter information */
/* follow. */
/* Line control codes (in body of LINE_CNTL message) */
#define LINK_DISABLE 0x00 /* Disable link layer */
#define LINK_ENABLE 0x01 /* Enable link layer */
#define LINK_LOOPBACK 0x42 /* Link layer loopback mode */
#define LOOP_NONE 0x00 /* Loopback off */
#define LOOP_EXTERNAL 0x01 /* Loopback external */
#define LOOP_INTERNAL 0x03 /* Loopback internal */
#define DTE_DCE_MODE 0x43 /* DTE/DCE Mode Parameter */
#define DTE 0x00 /* operate as DTE */
#define DCE 0x01 /* operate as DCE */
#define DTE_ADDRESS 0x44 /* DTE Address Parameter */
#define DTE_ADRVAL 0x03 /* DTE Address value */
#define DCE_ADDRESS 0x45 /* DCE Address Parameter */
#define DCE_ADRVAL 0x01 /* DCE Address value */
#define IFRAME_TIMEO 0x46 /* I-Frame Timeout Parameter */
#define IFRAME_TOVAL 0x03 /* I-Frame Timeout value 3s */
#define POLL_TIMEO 0x47 /* Poll Timeout Parameter */
#define POLL_TOVAL 0x03 /* Poll Timeout value 3s */
#define ADM_TIMEO 0x48 /* ADM Timeout Parameter */
#define ADM_TOVAL 0x03 /* ADM Timeout value 3s */
#define RETRY_LIMIT 0x4a /* Retry Limit Parameter */
#define RETRY_VAL 0x14 /* 20 (decimal) retries */
#define WATCHDOG 0x4b /* Watchdog Timeout Parameter */
#define WATCHDG_VAL 0x03 /* Watchdog Timeout value 3s */
#define BAUD_CNTL 0xa9 /* Baud Rate Parameter */
#define CLOCK_CNTL 0x6a /* Select Clock Source */
#define EXTERNAL_CLOCK 0x00 /* clock generated externally */
#define INTERNAL_CLOCK 0x01 /* clock generated internally */
#define IDLE_POLL 0x4d /* Idle Poll Parameter */
#define IDLE_POLL_ON 0x01 /* Idle Polling on */
#define IDLE_POLL_OFF 0x00 /* Idle Polling off */
#define FRAME_WINDOW 0x4e /* Frame Window Parameter */
#define FWINDW_VAL 0x07 /* Frame Window value 7 */
#define PKT_WINDOW 0x4f /* Packet Window Parameter */
#define PWINDW_VAL 0x02 /* Packet Window value 2 */
#define PKT_SIZE 0x90 /* Packet Size Parameter */
#define PVAL_BYTE1 0x08 /* least significant byte */
#define PVAL_BYTE2 0x00 /* most significant byte */
#define MAX_PKT_SZ 0xbe /* Max Packet Size */
#define MAX_PKT_WN 0x7c /* Max Packet Window Size */
#define PKT_OPTIONS 0x77 /* Supported 1984 options */
#define HIGH_THRESH 0x51 /* High Buffer Threshold Param */
#define HTRSH_VAL 0x08 /* High Threshold value */
#define LOW_THRESH 0x52 /* Low Buffer Threshold Param */
#define LTRSH_VAL 0x08 /* Low Threshold value */
#define QUEUED_BUFS 0x53 /* Max Number of Queued Buffers */
#define QBUF_VAL 0x08 /* Queued Buffer value */
#define QUEUED_IFRAMES 0x54 /* Max Number Queued I-Frames */
#define QIFRAME_VAL 0x08 /* Queued I-Frame value */
#define FRAME_SIZE 0x95 /* Maximum Frames Size Parametr */
#define FRAME_SIZE1 0x95 /* least significant byte */
#define FRAME_SIZE2 0x01 /* most significant byte */
/* for value of 405 (decimal) */
#define LCGN 0x56 /* Logical Channel Group Number */
#define LCGN_VAL 0x00 /* lcgn value */
#define SVC_LIMIT 0x57 /* Switched Virtual Circuit */
#define SVC_VAL 0x20 /* SVC value 32 (decimal) */
#define DDAF_OK 0x0001 /* ACP operation flag */
#define DDASTAT_OK 0x00 /* ACP system status returned */
/* on interrupt "b" */
#define DDASTAT_ERR 0x80
#define DDASTAT_NMC 0x7F
/* flag values for ds->dda_init */
#define INIT_OK 0x10 /* ok to call x25_init() */
#define DDA_STANDARD 0x01 /* DDN standard X.25 service */
#define DDA_BASIC 0x02 /* DDN basic X.25 service */
#define DDA_PDN 0x04 /* Public Data Network X.25 */
#define DDA_INTCLOCK 0x08 /* internal clocking is set */
#define DDA_CLASS_A_B 0x20 /* Standard service/table lookup */
#define DDA_PKTNEG 0x40 /* Packet size negotiation flag */
#define DDA_WNDNEG 0x80 /* Window size negotiation flag */
/* the following offsets are for ddainit_msg, the set systems parameters */
/* message */
#define LOOP_OFFSET 6 /* set system parms, loopback */
#define DTE_OFFSET 8 /* set system parms, dte/dce mode */
#define BAUD_OFFSET 10 /* set system parms, dte/dce mode */
#define CLOCK_OFFSET 18 /* set system parms, dte/dce mode */
#define DOWN_OFFSET 19 /* set system parms, line down */
#define MSG_LENGTH 3 /* offset for message length */
#define MSG_OFFSET 4 /* offset for start of parameters */
#define MSGS_BAUD 3 /* msg size for baud rate parms */
/* X25 supervisor message codes */
#define CALL 0x00 /* outgoing call */
#define RING 0x01 /* incoming call */
#define CLEARVC 0x02 /* clear by VCN */
#define ANSWER 0x03 /* answer call */
#define CLEARLC 0x04 /* clear by LCN */
#define RESET 0x20 /* reset LCN */
#define RESET_ACK 0x21 /* reset ack */
#define INTERRUPT 0x22 /* X25 interrupt */
#define READY 0x23 /* flow control ready */
#define INTR_ACK 0x24 /* interrupt ack */
#define RESTART 0x40 /* X25 restart */
#define RSTRT_ACK 0x41 /* restart ack */
#define SYS_STATUS 0x42 /* system status msg */
#define LINE_CNTL 0x60 /* link control cmnd */
#define LINE_STATUS 0x61 /* link status resp */
#define SET_BFR_SIZE 0x62 /* set firmware buffer size */
#define STATQUERY 0217 /* statistics query */
#define STATRESP 0216 /* statistics response */
/* X25 facilities */
#define X25_FACIL_PKTSIZE 0x42 /* CCITT packet size negotiation*/
#define X25_FACIL_WINSIZE 0x43 /* CCITT window size negotiation*/
#define DDN_FACIL_MARKER 0 /* two of these mark DDN private*/
#define X25_FACIL_DDA 0x04 /* DDA mode facility */
#define FAC_DDASTD 0x01 /* DDA standard mode */
#define PKTSIZE_LARGE 12 /* lg2 (4096) for calls */
#define WINSIZE_LARGE 7 /* Large (7) window for calls */
#define PKTSIZE_DEF 7 /* Default packet size */
#define WINSIZE_DEF 2 /* Default window size */
/* X25 protocols */
#define X25_PROTO_IP 0xcc /* X25 IP protocol type code */
#define X25_PROTO_X29 0x01 /* X29 over X25 protocol type code */
/* DMESG(unit,value,statement) e.g. DMESG(0,27,printf("error message")) */
/* v should be a constant (no side effects) */
/* (v) >> 5 == (v) / 32 - find which word the bit is in. */
/* (v) & 0x1f == (v) % 32 - find the number of the bit to check */
/* DMESGSET - set a msg bit to 1 */
/* DMESGCLR - set a msg bit to 0 */
/* DMESGTOG - toggle a msg bit */
/* DMESGVAL - the value of a message bit. 0 or non-zero */
#define DMESGSET(u,v) (ddamsgs[(u)][(int)((v)>>5)] |= (1 << ((v) & 0x1f)))
#define DMESGCLR(u,v) (ddamsgs[(u)][(int)((v)>>5)] &= ~(1 << ((v) & 0x1f)))
#define DMESGTOG(u,v) (ddamsgs[(u)][(int)((v)>>5)] ^= (1 << ((v) & 0x1f)))
#define DMESGVAL(u,v) (ddamsgs[(u)][(int)((v)>>5)] & (1 << ((v) & 0x1f)))
#define DMESG(u,v,s) (DMESGVAL(u,v) ? 0 : (s))
#ifdef VAXVMS /* always enable debugging under VMS */
#define DDADEBUG
#endif VAXVMS
#ifdef DDADEBUG
#define DDADBCH(n, unit) (!DMESGVAL(unit, n + 128)) /* first 128 are !debug*/
#endif
/* macros to test for call logging -- only use unit 0 space for now */
#define LOG_BUSY (!DMESGVAL(0, 256)) /* "all circuits in use"
* and "no circuits available" */
#define LOG_CALLS (!DMESGVAL(0, 257)) /* calls and clears */
#define LOG_ABT (!DMESGVAL(0, 258)) /* I/O aborts */
/* values in dda_state */
#define S_DISABLED 0 /* link is disabled */
#define S_COMING_UP 1 /* enable issued, waiting for response */
#define S_LINK_UP 2 /* link operational */
#define S_GOING_DOWN 3 /* disable issued, waiting for response */
struct trtab /* This stuff should ALSO be in ddareg.h */
{ /* Address Translation Table IOCTL Data */
unsigned char func;
unsigned char x25addr[MAXADDRLEN];
unsigned long ipaddr;
};
struct ddactl /* used for -m (message), -q (query), -n (svc_count) */
{
unsigned char func;
unsigned char nothing[3];
int drval;
char msg[MLEN];
};
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/*%% %%*/
/*%% The download structure is the template for communication %%*/
/*%% with the ACP7000 when it is running diagnostic roms. The %%*/
/*%% will initially place the SYSGEN_VALID entry in the BIIC GPR0 %%*/
/*%% when in the probe routine. The IOCTL mechanism has been %%*/
/*%% extended to support a *very* limited download feature which %%*/
/*%% enables us to load programs into the 7000 and then execute %%*/
/*%% them. Versabug has been modified to examine GPR0 for the %%*/
/*%% SYSGEN_DLOAD value. GPR1 will contain the physical address of %%*/
/*%% our standard sysgen block. The driver will then place messages %%*/
/*%% in the request queue. These messages will be read by the 7000 %%*/
/*%% diagnostic firmware and placed into memory as needed. After %%*/
/*%% all code has been loaded, a final "EXEC" command may be sent %%*/
/*%% to the 7000 giving an execution start address. The 7000 will %%*/
/*%% then execute the system code (which should wait for GPR0 to %%*/
/*%% contain the standard SYSGEN_VALID pattern before continuing. %%*/
/*%% %%*/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#ifdef ACP_BI
#define SYSGEN_VALID 0x12345678 /* normal operation mode */
#define SYSGEN_DLOAD 0x31415927 /* download operation mode */
#define DN_LCMD_SETUP 0 /* reset board, alloc buffers, setup shm */
#define DN_LCMD_FEOP 1 /* send command and data to front end */
#define DN_LCMD_CLEANUP 2 /* dealloc buffers and restore shm to norm */
#define DN_TYPE_ID 1 /* identification record */
#define DN_TYPE_VER 2 /* version record */
#define DN_TYPE_COPY 3 /* copyright record */
#define DN_TYPE_DATA 4 /* data record */
#define DN_TYPE_XFR 5 /* start address transfer record */
struct dda_dnload /* code download structure */
{
unsigned char func; /* ioctl function code (will be 'L') */
unsigned char lcommand; /* driver load command (setup/op/cleanup) */
unsigned short padding; /* null padding for dest addr */
unsigned short len; /* length of entire record */
unsigned short type; /* type of record passed */
unsigned int dest; /* destination address */
char *data; /* address of data record in user space */
};
#endif ACP_BI
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/*%% %%*/
/*%% Histogram support declarations and defines. Slots 0-NDDACH %%*/
/*%% record the amount of time n channels were being used. The %%*/
/*%% following define uses of locations that come after the %%*/
/*%% first NDDACH entries. %%*/
/*%% %%*/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#define H_LINK_UP (NDDACH+1) /* entry that records the time link is*/
/* up 0-126 */
#define H_START (NDDACH+2) /* starting time */
#define H_END (NDDACH+3) /* ending time */
#define H_TMO (NDDACH+4) /* current value of idle timer */
#define HISTSIZE (H_TMO+1) /* size of the histogram table */
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/*%% %%*/
/*%% Information for each device unit is maintained in an %%*/
/*%% array of structures named dda_softc[]. The array is %%*/
/*%% indexed by unit number. Each entry includes the network %%*/
/*%% interface structure (dda_if) used by the routing code to %%*/
/*%% locate the interface, an array of Logical Channel %%*/
/*%% control blocks which maintain information about each of %%*/
/*%% the Logical Channels (LCNs) through which X.25 virtual %%*/
/*%% calls are established, a queue of I/O requests pending %%*/
/*%% for the ACP, the UNIBUS interrupt vector for the unit %%*/
/*%% and misc flags. The Logical Channel Control blocks %%*/
/*%% maintain information about the state of each LCN, a %%*/
/*%% queue of outbound data, Half Duplex Channel (HDX) blocks %%*/
/*%% used for queuing I/O requests to the ACP and an ifuba %%*/
/*%% structure which records the UNIBUS resources being held %%*/
/*%% by the LCN. %%*/
/*%% %%*/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
struct sioq /* Start I/O queue head */
{
struct hdx_chan *sq_head; /* queue head */
struct hdx_chan *sq_tail; /* queue tail */
};
struct hdx_chan /* HDX channel block */
{
struct hdx_chan *hc_next; /* link to next HDX channel */
struct mbuf *hc_mbuf; /* mbuf chain */
struct mbuf *hc_curr; /* current mbuf in chain */
unsigned char *hc_addr; /* address bits 15-00 */
unsigned short hc_cnt; /* byte count */
unsigned char hc_func; /* I/O function */
unsigned char hc_sbfc; /* I/O subfunction */
unsigned char hc_chan; /* HDX channel number */
unsigned char hc_inv; /* place to store various bits */
#ifdef vax11c
/* VAX C compiler (and GCC running in VAXC native mode) does not pad
structures to longword boundaries, so we must pad any structures
that are passed between ACPCONFIG and the driver */
unsigned char _vaxcfill[2]; /* pad structure to longword boundary */
#endif
};
union dc_key
{
struct in_addr key_addr;
unsigned long key_val;
};
struct dda_cb /* Logical Channel control block */
{
#if defined(DDA_PADOPT) && defined(VAXVMS)
int ptyucb; /* to store the np unit control blk addr */
int ttyflags; /* flags for the VMS x29 driver */
#endif
int dc_line; /* index into tty structure / minor number */
struct in_addr dc_inaddr; /* remote Internet address */
union dc_key dc_key; /* circuit destination key */
unsigned char dc_lcn; /* LCN number */
unsigned char dc_state; /* LCN state */
unsigned short dc_timer; /* LCN timer */
struct ifqueue dc_oq; /* LCN output queue */
struct hdx_chan dc_rchan; /* LCN read HDX channel */
struct hdx_chan dc_wchan; /* LCN write HDX channel */
short dc_next; /* LCN next index. Long so padding will work */
unsigned char dc_wsizeout; /* negotiated outgoing window size */
unsigned char dc_wsizein; /* negotiated ingoing window size */
unsigned char dc_pktsizeout;/* negotiated outgoing packet size */
unsigned char dc_pktsizein; /* negotiated ingoing packet size */
unsigned short dc_flags; /* misc flags, DC_OBUSY */
unsigned short dc_out_t; /* DEBUG output completion timer per lcn */
#ifdef vax11c
/* VAX C compiler (and GCC running in VAXC native mode) does not pad
structures to longword boundaries, so we must pad any structures
that are passed between ACPCONFIG and the driver */
unsigned char _vaxcfill[2]; /* pad structure to longword boundary */
#endif
};
struct dda_softc /* device control structure */
{
struct ifnet dda_if; /* network-visible interface */
struct dda_cb dda_cb[NDDACH + 1]; /* Logical Channel cntl blks */
struct sioq dda_sioq; /* start I/O queue */
int dda_vector; /* UNIBUS interrupt vector */
int dda_mapreg; /* UNIBUS mapping register */
unsigned char dda_flags; /* ACP operational flag (intr b) */
unsigned char dda_init; /* flag for init, X.25 service */
unsigned char dda_state; /* state of link (see below) */
unsigned char dda_firmrev; /* firmware revision level byte */
struct in_addr dda_ipaddr; /* local IP address */
int dda_net_id; /* net type -- for TRANSPAC */
};
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
/*%% %%*/
/*%% The dc_flags field in the dda_cb structure is used to %%*/
/*%% indicate that output is busy, DC_OBUSY. In ddainit(), %%*/
/*%% the flag is set to zero. In dda_start(), return if the %%*/
/*%% flag is set DC_OBUSY; otherwise if output isn't active %%*/
/*%% an attempt is made to send another packet. The packet %%*/
/*%% is dequeued, and the flag is set for DC_BUSY on. In %%*/
/*%% both dda_data and dda_supr, if a write completion is %%*/
/*%% indicated, DC_BUSY is turned off before firing up a write %%*/
/*%% via a call to dda_start(). %%*/
/*%% %%*/
/*%% In order to modify packet level parameters like packet %%*/
/*%% window, packet level must be restarted. Doing this %%*/
/*%% reliably requires the driver know four possible states %%*/
/*%% for the FEP: DISABLED (down and not attempting to bring %%*/
/*%% the link up); COMING UP (processed a "-u N" for N != 0, %%*/
/*%% but have not exchanged restarts yet); UP (data transfer %%*/
/*%% state); GOING DOWN (processed "-u 0", but the other end %%*/
/*%% has not yet agreed). The dda_state variable tracks these %%*/
/*%% four states. No other data structure provides this level %%*/
/*%% of resolution. In particular, IFF_UP is always on when %%*/
/*%% dda_state is UP, but sometimes on when dda_state is %%*/
/*%% COMING UP or GOING DOWN. %%*/
/*%% %%*/
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#ifdef DDA_MSGQ
#define MSGQSIZE 2048
#define MQHEX 1 /* marks the start of a hex number */
#define MQDEC 2 /* marks the start of a decimal number */
#define MQEND 0 /* marks the end of message queue data */
#define MSGQNAME "_ddamsgq" /* the text name of the message q */
#endif
/*
Revision History:
26-Mar-1986: V1.0 - First generated.
Clare Russ.
05-Sep-1986: V1.1 - Add definitions for modified ACPCONFIG interface
Clare Russ.
27-Oct-1986: V1.2 - Change TMO_DATA_IDLE from 30 to 600 sec.
Lars Poulsen and Randy Graves.
30-Jan-1987: V1.3 - Added DDASTAT_NMC
Jeff Berkowitz and Stephanie Price
30-Mar-1987: V1.4 - Added new #defines for X.25 facilities
Jeff Berkowitz
09-Sep-1987: V2.1 - Moved all major structure and constant
declarations from the driver to this file.
Added new #defines for X.25 options and facilities
Note that you must now edit this file to turn on
debugging and logging.
Stephanie Price
18-Mar-1988: V3.0 Brad Engstrom
Added four fields to the dda_cb structure. These fields
are used to track the negotiated packet and window size
for both incoming and outgoing directions. This data
will be displayed by the -l option of acpconfig.
12-Apr-1988: V3.0 Brad Engstrom
Moved all initialized variables to if_dda.c. This will
allow this file to work under BSD or ULTRIX because the
ULTRIX C compiler gags on variables declared in header
files.
15-Apr-1988: V3.0 Brad Engstrom
Added a key field for doing searches for a
matching destination. This is used to see if there is
already an open circuit to a particular destination.
15-Apr-1988: V3.0 Brad Engstrom
Added a next pointer to the dda_cb structure. This
will allow lcn structures to be linked into free and
active lists. The pointer is actully just an offset to
the next element in the list. This allows programs such
as acpconfig to traverse a copy of the structure in
memory.
15-Apr-1988: V3.0 Brad Engstrom
Got rid of conditional compilation of dc_out_t field
in the dda_cb structure. This will always be included
in the structure, but will only be used if DDA_DEBUG is
on. This releaves problems of padding size when adding
new fields to the dda_cb structure.
22-Apr-1988: V3.0 Brad Engstrom
Added new macro DMESG. This is used to conditionally
print driver console messages.
22-Apr-1988: V3.0 Brad Engstrom
Added a new define DDAMAINT_BRD. If this is defined
then it is assumed that the maintenance board is being
used so don't do checks for the board id in the probe
routine.
10-May-1988: V3.0 Brad Engstrom
Added the constant MAXADDRLEN which is the maximum lenth
of an X.25 address. Also added MINADDRLEN to specify
the minimum X25 address length.
26-Oct-1988: V3.1 Charles Carvalho
Added documentation.
15-Aug-1988: V4.0 Brad Ensgtrom
added support for X.29 and Programmers Interface
02-Sep-1988: V4.0 Brad Ensgtrom
added new field hc_inv to the hc structure. Someone used
the hc_sbfc field to store the invalid bit. Now that the
PI will use the subfunction field the invalid bit must be
stored someplace else.
09-Jan-1989: V4.1 SAJ -- Merge 4.0, 3.1
relaxed MAXADDRLEN & MINADDRLEN to allow for transpac
installed padding changes from TGV for vax11c
17-Feb-1989: Paul Traina
Merged SAJ's changes for DDA_DEBUG
28-May-1989: Paul Traina
Changed structure padding for TGV
20-Jun-1989: Paul Traina
Eliminated old debug logic... call loging is next on the hit
list. New driver is not compatible with old acpconfig!
18-Jul-1989: Paul Traina
Moved dc_key.ttyline out of union, creating dc_line. This
is to stop it from getting clobbered on restarts et al.
25-Oct-1989: Paul Traina
Added download structure for ACP7000 downloading and code
execution.
*/