civar.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef	lint
static char *sccsid = "@(#)civar.c	4.1	(ULTRIX)	7/2/90";
#endif	lint

/************************************************************************
 *                                                                      *
 *                      Copyright (c) 1988 - 1989 by                    *
 *              Digital Equipment Corporation, Maynard, MA              *
 *                      All rights reserved.                            *
 *                                                                      *
 *   This software is furnished under a license and may be used and     *
 *   copied  only  in accordance with the terms of such license and     *
 *   with the  inclusion  of  the  above  copyright  notice.   This     *
 *   software  or  any  other copies thereof may not be provided or     *
 *   otherwise made available to any other person.  No title to and     *
 *   ownership of the software is hereby transferred.                   *
 *                                                                      *
 *   The information in this software is subject to change  without     *
 *   notice  and should not be construed as a commitment by Digital     *
 *   Equipment Corporation.                                             *
 *                                                                      *
 *   Digital assumes no responsibility for the use  or  reliability     *
 *   of its software on equipment which is not supplied by Digital.     *
 *                                                                      *
 ************************************************************************
 *
 *
 *   Facility:	Systems Communication Architecture
 *		Computer Interconnect Port Driver
 *
 *   Abstract:	This module contains Computer Interconnect Port Driver(
 *		CI ) internal data structures and variables.
 *
 *   Creator:	Todd M. Katz	Creation Date:	November 12, 1985
 *
 *   Modification History:
 *
 *   06-Jun-1990	Pete Keilty
 *	1. Added six new error events to the ci_clse table for the CIXCD.
 *	2. Added preliminary support for the CIKMF and SHAC.
 *
 *   29-Mar-1990	Pete Keilty
 *	Add microcode entry 6/4,5/5,5/4 to cibca_aa_mrltab[].
 *
 *   02-Jan-1990	Pete Keilty
 *	Add microcode entry 6/3 to cibca_aa_mrltab[].
 *
 *   19-Sep-1989	Pete Keilty
 *	Added XCD support, removed XCB.
 *
 *   05-Mar-1989	Todd M. Katz		TMK0008
 *	Include header file ../vaxmsi/msisysap.h.
 *
 *   07-Oct-1988	Todd M. Katz		TMK0007
 *	Modify cibca_aa_mrltab[] so that a warning is printed whenever revision
 *	level 2 self-test microcode is encountered, regardless of the
 *	functional microcode revision level.  Previously, presence of revision
 *	level 2 self-test microcode was always regarded as a fatal error.
 *
 *   22-Sep-1988	Todd M. Katz		TMK0006
 *	1. Update ci_clppdse[] and ci_cltab[][] to reflect the creation of a
 *	   new path specific CI PPD severe error event logged only by the CI
 *	   PPD itself and never by the CI port driver.
 *	2. Update all console logging message strings.
 *
 *   18-Aug-1988	Todd M. Katz		TMK0005
 *	1. SCA event code formats have been complete redefined.  Both new
 *	   severity levels as well as severity level modifiers have been
 *	   created.  The GVP subclass( ESC_GVP ) has been eliminated.  Most
 *	   current CI event codes have been reassigned to different severity
 *	   levels.  New event codes have been added.  Revise and add new
 *	   console logging format tables, and update ci_cltab[][].
 *	2. Update ci_pdt by removing ci_map_reason( Map_reason ) and
 *	   ci_log_packet( Log_pcrashes ), two functions no longer required by
 *	   the CI PPD, and adding ci_log_badport(), a new mandatory PD routine
 *	   required by the CI PPD.
 *	3. Delete ci_map_cipc[].  Port driver specific path crash reason codes
 *	   codes no longer exist and all reason code mapping takes place
 *	   entirely within the CI PPD.
 *
 *   03-Jun-1988	Todd M. Katz		TMK0004
 *	1. Update console logging format table ci_clppdlpc[].
 *
 *   03-Jun-1988	Todd M. Katz		TMK0003
 *	1. Create a single unified hierarchical set of naming conventions for
 *	   use within the CI port driver and describe them within ciport.h.
 *	   Apply these conventions to all names( routine, macro, constant, and
 *	   data structure ) used within the driver.
 *	2. Add support for the CIXCB hardware port type by adding cixcb_regoff(
 *	   register offsets ) and cixcb_mrltab[]( microcode revision table ).
 *	3. Update all microcode revision tables to current support levels.  Add
 *	   self-test revision levels to cibca_aa_rltab[] and cibca_ba_mrltab[]
 *	   so that both functional and self-test revision levels maybe verified
 *	   following the initial port initialization of all CIBX family ports.
 *	4. Rename CF_PORT -> CF_RPORT.
 *	8. Update the console logging tables ci_cltab[][] and ci_clie[] to
 *	   reflect elimination of the informational event IE_INVHPT, the
 *	   renumbering of the remaining informational event codes, and the
 *	   addition of new codes IE_STRAY, IE_POWER, and IE_POWERUP.
 *
 *   02-Jun-1988	Ricky S. Palmer
 *	Removed inclusion of header file ../vaxmsi/msisysap.h
 *
 *   09-Apr-1988	Todd M. Katz		TMK0002
 *	Add support for the CIBCA-BA hardware port type by renaming
 *	cibca_mrltable[] -> cibca_aa_mrltab[] and by adding cibca_ba_mrltab[],
 *	a CIBCA-BA microcode revison table.
 *
 *   08-Jan-1988	Todd M. Katz		TMK0001
 *	Formated module, revised comments, increased generality and
 *	robustness, made CI PPD and GVP completely independent from underlying
 *	port drivers, and added SMP support.
 */

/* Libraries and Include Files.
 */
#include		"../h/types.h"
#include		"../h/param.h"
#include		"../h/time.h"
#include		"../h/ksched.h"
#include		"../h/errlog.h"
#include		"../io/scs/sca.h"
#include		"../io/scs/scaparam.h"
#include		"../io/ci/cippdsysap.h"
#include		"../io/ci/cisysap.h"
#include		"../io/msi/msisysap.h"
#include		"../io/bi/bvpsysap.h"
#include		"../io/gvp/gvpsysap.h"
#include		"../io/uba/uqsysap.h"
#include		"../io/sysap/sysap.h"
#include		"../io/ci/cippdscs.h"
#include		"../io/ci/ciscs.h"
#include		"../io/msi/msiscs.h"
#include		"../io/bi/bvpscs.h"
#include		"../io/gvp/gvpscs.h"
#include		"../io/uba/uqscs.h"
#include		"../io/scs/scs.h"
#include		"../io/gvp/gvp.h"
#include		"../io/ci/cippd.h"
#include		"../io/ci/ciport.h"

/* External Variables and Routines.
 */
extern	PB		*cippd_get_pb();
extern	SCSH		*gvp_alloc_dg(), *gvp_alloc_msg(), *gvp_remove_dg(),
			*gvp_remove_msg();
extern	u_long		ci_alloc_buf(), ci_get_port(), ci_init_pb(),
			ci_req_data(), ci_send_data(), ci_remote_reset(),
			ci_remote_start(), ci_send_reqid(), ci_set_circuit(),
			cippd_open_pb(), gvp_map_buf();
extern	void		ci_crash_lport(), ci_dealloc_buf(), ci_init_port(),
			ci_inv_cache(), ci_log_badport(), ci_notify_port(),
			ci_shutdown(), ci_test_lpconn(), ci_update_ptype(),
			cippd_crash_pb(), cippd_remove_pb(), gvp_add_dg(),
			gvp_add_msg(), gvp_dealloc_dg(), gvp_dealloc_msg(),
			gvp_send_dg(), gvp_send_msg(), gvp_unmap_buf();

/* Global Variables and Data Structures.
 */
u_char		*ci_black_hole		/* CI Black Hole Mapping Page	     */
		      = NULL;
u_long		ci_bhole_pfn		/* CI Black Hole Page Frame Number   */
		     = 0;
u_short		ci_ucode_type		/* CI Functional Microcode Type	     */
		     = 0;
PDT		ci_pdt	= {		/* CI Port Dispatch Table	     */
					/* Mandatory PD Functions	     */
		    gvp_alloc_dg,	/* Allocate Datagram Buffer	     */
		    gvp_dealloc_dg,	/* Deallocate Datagram Buffer	     */
		    gvp_add_dg,		/* Add Datagram Buffer to Free Pool  */
		    gvp_remove_dg,	/* Remove Dg Buffer from Free Pool   */
		    gvp_alloc_msg,	/* Allocate Message Buffer	     */
		    gvp_dealloc_msg,	/* Deallocate Message Buffer	     */
		    gvp_add_msg,	/* Add Message Buffer to Free Pool   */
		    gvp_remove_msg,	/* Remove Msg Buffer from Free Pool  */
		    gvp_send_msg,	/* Send Sequenced Message	     */
		    gvp_map_buf,	/* Map Buffer			     */
		    gvp_unmap_buf,	/* Unmap Buffer			     */
		    cippd_open_pb,	/* Transition Formative Path to Open */
		    cippd_crash_pb,	/* Crash Path			     */
		    cippd_get_pb,	/* Retrieve Path Block               */
		    cippd_remove_pb,	/* Remove Path Block from Databases  */
		    ci_remote_reset,	/* Reset Remote Port and System	     */
		    ci_remote_start,	/* Start Remote Port and System	     */

					/* Optional PD Functions	     */
		    gvp_send_dg,	/* Send Datagram		     */
		    ci_send_data,	/* Send Block Data		     */
		    ci_req_data,	/* Request Block Data		     */
		    ci_crash_lport,	/* Crash Local Port		     */
		    ci_shutdown,	/* Inform Systems of Local Shutdown  */