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!
189 lines
8.3 KiB
C
189 lines
8.3 KiB
C
/****************************************************************************
|
|
******* *******
|
|
******* L I N K
|
|
******* *******
|
|
****************************************************************************
|
|
|
|
Author : Ian Nandhra / Jeremy Rolls
|
|
Date :
|
|
|
|
*
|
|
* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
Version : 0.01
|
|
|
|
|
|
Mods
|
|
----------------------------------------------------------------------------
|
|
Date By Description
|
|
----------------------------------------------------------------------------
|
|
|
|
***************************************************************************/
|
|
|
|
#ifndef _link_h
|
|
#define _link_h 1
|
|
|
|
#ifndef lint
|
|
#ifdef SCCS_LABELS
|
|
/* static char *_rio_link_h_sccs = "@(#)link.h 1.15"; */
|
|
#endif
|
|
#endif
|
|
|
|
|
|
|
|
/*************************************************
|
|
* Define the Link Status stuff
|
|
************************************************/
|
|
#define LRT_ACTIVE ((ushort) 0x01)
|
|
#define LRT_SPARE1 ((ushort) 0x02)
|
|
#define INTRO_RCVD ((ushort) 0x04)
|
|
#define FORCED_DISCONNECT ((ushort) 0x08)
|
|
#define LRT_SPARE2 ((ushort) 0x80)
|
|
|
|
#define TOP_OF_RTA_RAM ((ushort) 0x7000)
|
|
#define HOST_SERIAL_POINTER (unsigned char **) (TOP_OF_RTA_RAM - 2 * sizeof (ushort))
|
|
|
|
/* Flags for ltt_status */
|
|
#define WAITING_ACK (ushort) 0x0001
|
|
#define DATA_SENT (ushort) 0x0002
|
|
#define WAITING_RUP (ushort) 0x0004
|
|
#define WAITING_RETRY (ushort) 0x0008
|
|
#define WAITING_TOPOLOGY (ushort) 0x0010
|
|
#define SEND_SYNC (ushort) 0x0020
|
|
#define FOAD_THIS_LINK (ushort) 0x0040
|
|
#define REQUEST_SYNC (ushort) 0x0080
|
|
#define REMOTE_DYING (ushort) 0x0100
|
|
#define DIE_NOW (ushort) 0x0200
|
|
|
|
/* Boot request stuff */
|
|
#define BOOT_REQUEST ((ushort) 0) /* Request for a boot */
|
|
#define BOOT_ABORT ((ushort) 1) /* Abort a boot */
|
|
#define BOOT_SEQUENCE ((ushort) 2) /* Packet with the number of packets
|
|
and load address */
|
|
#define BOOT_COMPLETED ((ushort) 3) /* Boot completed */
|
|
|
|
/* States that a link can be in */
|
|
#define LINK_DISCONNECTED ((ushort) 0) /* Disconnected */
|
|
#define LINK_BOOT1 ((ushort) 1) /* Trying to send 1st stage boot */
|
|
#define LINK_BOOT2 ((ushort) 2) /* Trying to send 2nd stage boot */
|
|
#define LINK_BOOT2WAIT ((ushort) 3) /* Waiting for selftest results */
|
|
#define LINK_BOOT3 ((ushort) 4) /* Trying to send 3rd stage boots */
|
|
#define LINK_SYNC ((ushort) 5) /* Syncing */
|
|
|
|
#define LINK_INTRO ((ushort) 10) /* Introductory packet */
|
|
#define LINK_SUPPLYID ((ushort) 11) /* Trying to supply an ID */
|
|
#define LINK_TOPOLOGY ((ushort) 12) /* Send a topology update */
|
|
#define LINK_REQUESTID ((ushort) 13) /* Waiting for an ID */
|
|
#define LINK_CONNECTED ((ushort) 14) /* Connected */
|
|
|
|
#define LINK_INTERCONNECT ((ushort) 20) /* Subnets interconnected */
|
|
|
|
#define LINK_SPARE ((ushort) 40)
|
|
|
|
/*
|
|
** Set the default timeout for link communications.
|
|
*/
|
|
#define LINKTIMEOUT (400 * MILLISECOND)
|
|
|
|
/*
|
|
** LED stuff
|
|
*/
|
|
#if defined(RTA)
|
|
#define LED_OFF ((ushort) 0) /* LED off */
|
|
#define LED_RED ((ushort) 1) /* LED Red */
|
|
#define LED_GREEN ((ushort) 2) /* LED Green */
|
|
#define LED_ORANGE ((ushort) 4) /* LED Orange */
|
|
#define LED_1TO8_OPEN ((ushort) 1) /* Port 1->8 LED on */
|
|
#define LED_9TO16_OPEN ((ushort) 2) /* Port 9->16 LED on */
|
|
#define LED_SET_COLOUR(colour) (link->led = (colour))
|
|
#define LED_OR_COLOUR(colour) (link->led |= (colour))
|
|
#define LED_TIMEOUT(time) (link->led_timeout = RioTimePlus(RioTime(),(time)))
|
|
#else
|
|
#define LED_SET_COLOUR(colour)
|
|
#define LED_OR_COLOUR(colour)
|
|
#define LED_TIMEOUT(time)
|
|
#endif /* RTA */
|
|
|
|
struct LPB {
|
|
WORD link_number ; /* Link Number */
|
|
Channel_ptr in_ch ; /* Link In Channel */
|
|
Channel_ptr out_ch ; /* Link Out Channel */
|
|
#ifdef RTA
|
|
uchar stat_led ; /* Port open leds */
|
|
uchar led ; /* True, light led! */
|
|
#endif
|
|
BYTE attached_serial[4]; /* Attached serial number */
|
|
BYTE attached_host_serial[4];
|
|
/* Serial number of Host who
|
|
booted the other end */
|
|
WORD descheduled ; /* Currently Descheduled */
|
|
WORD state; /* Current state */
|
|
WORD send_poll ; /* Send a Poll Packet */
|
|
Process_ptr ltt_p ; /* Process Descriptor */
|
|
Process_ptr lrt_p ; /* Process Descriptor */
|
|
WORD lrt_status ; /* Current lrt status */
|
|
WORD ltt_status ; /* Current ltt status */
|
|
WORD timeout ; /* Timeout value */
|
|
WORD topology; /* Topology bits */
|
|
WORD mon_ltt ;
|
|
WORD mon_lrt ;
|
|
WORD WaitNoBoot ; /* Secs to hold off booting */
|
|
PKT_ptr add_packet_list; /* Add packets to here */
|
|
PKT_ptr remove_packet_list; /* Send packets from here */
|
|
#ifdef RTA
|
|
#ifdef DCIRRUS
|
|
#define QBUFS_PER_REDIRECT (4 / PKTS_PER_BUFFER + 1)
|
|
#else
|
|
#define QBUFS_PER_REDIRECT (8 / PKTS_PER_BUFFER + 1)
|
|
#endif
|
|
PKT_ptr_ptr rd_add ; /* Add a new Packet here */
|
|
Q_BUF_ptr rd_add_qb; /* Pointer to the add Q buf */
|
|
PKT_ptr_ptr rd_add_st_qbb ; /* Pointer to start of the Q's buf */
|
|
PKT_ptr_ptr rd_add_end_qbb ; /* Pointer to the end of the Q's buf */
|
|
PKT_ptr_ptr rd_remove ; /* Remove a Packet here */
|
|
Q_BUF_ptr rd_remove_qb ; /* Pointer to the remove Q buf */
|
|
PKT_ptr_ptr rd_remove_st_qbb ; /* Pointer to the start of the Q buf */
|
|
PKT_ptr_ptr rd_remove_end_qbb ; /* Pointer to the end of the Q buf */
|
|
ushort pkts_in_q ; /* Packets in queue */
|
|
#endif
|
|
|
|
Channel_ptr lrt_fail_chan ; /* Lrt's failure channel */
|
|
Channel_ptr ltt_fail_chan ; /* Ltt's failure channel */
|
|
|
|
#if defined (HOST) || defined (INKERNEL)
|
|
/* RUP structure for HOST to driver communications */
|
|
struct RUP rup ;
|
|
#endif
|
|
struct RUP link_rup; /* RUP for the link (POLL,
|
|
topology etc.) */
|
|
WORD attached_link ; /* Number of attached link */
|
|
WORD csum_errors ; /* csum errors */
|
|
WORD num_disconnects ; /* number of disconnects */
|
|
WORD num_sync_rcvd ; /* # sync's received */
|
|
WORD num_sync_rqst ; /* # sync requests */
|
|
WORD num_tx ; /* Num pkts sent */
|
|
WORD num_rx ; /* Num pkts received */
|
|
WORD module_attached; /* Module tpyes of attached */
|
|
WORD led_timeout; /* LED timeout */
|
|
WORD first_port; /* First port to service */
|
|
WORD last_port; /* Last port to service */
|
|
} ;
|
|
|
|
#endif
|
|
|
|
/*********** end of file ***********/
|