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