/**************************************************************************** ******* ******* ******* 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 ***********/
