patch-2.4.19 linux-2.4.19/include/asm-ia64/sn/router.h

Next file: linux-2.4.19/include/asm-ia64/sn/sgi.h
Previous file: linux-2.4.19/include/asm-ia64/sn/prio.h
Back to the patch index
Back to the overall index

diff -urN linux-2.4.18/include/asm-ia64/sn/router.h linux-2.4.19/include/asm-ia64/sn/router.h
@@ -1,19 +1,665 @@
+
 /* $Id$
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1992 - 1997, 2000 Silicon Graphics, Inc.
- * Copyright (C) 2000 by Colin Ngam
+ * Copyright (C) 1992 - 1997, 2000-2002 Silicon Graphics, Inc. All rights reserved.
+ */
+
+#ifndef _ASM_IA64_SN_ROUTER_H
+#define _ASM_IA64_SN_ROUTER_H
+
+/*
+ * Router Register definitions
+ *
+ * Macro argument _L always stands for a link number (1 to 8, inclusive).
+ */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/devfs_fs_kernel.h>
+#include <asm/sn/vector.h>
+#include <asm/sn/slotnum.h>
+#include <asm/sn/arch.h>
+
+typedef uint64_t	router_reg_t;
+
+#define MAX_ROUTERS	64
+
+#define MAX_ROUTER_PATH	80
+
+#define ROUTER_REG_CAST		(volatile router_reg_t *)
+#define PS_UINT_CAST		(__psunsigned_t)
+#define UINT64_CAST		(uint64_t)
+typedef signed char port_no_t;	 /* Type for router port number      */
+
+#else 
+
+#define ROUTERREG_CAST
+#define PS_UINT_CAST
+#define UINT64_CAST
+
+#endif /* __ASSEMBLY__ */
+
+#define MAX_ROUTER_PORTS (8)	 /* Max. number of ports on a router */
+
+#define ALL_PORTS ((1 << MAX_ROUTER_PORTS) - 1)	/* for 0 based references */
+
+#define PORT_INVALID (-1)	 /* Invalid port number              */
+
+#define	IS_META(_rp)	((_rp)->flags & PCFG_ROUTER_META)
+
+#define	IS_REPEATER(_rp)((_rp)->flags & PCFG_ROUTER_REPEATER)
+
+/*
+ * RR_TURN makes a given number of clockwise turns (0 to 7) from an inport
+ * port to generate an output port.
+ *
+ * RR_DISTANCE returns the number of turns necessary (0 to 7) to go from
+ * an input port (_L1 = 1 to 8) to an output port ( _L2 = 1 to 8).
+ *
+ * These are written to work on unsigned data.
  */
-#ifndef _ASM_SN_ROUTER_H
-#define _ASM_SN_ROUTER_H
 
-#include <linux/config.h>
+#define RR_TURN(_L, count)	((_L) + (count) > MAX_ROUTER_PORTS ?	\
+				 (_L) + (count) - MAX_ROUTER_PORTS :	\
+				 (_L) + (count))
+
+#define RR_DISTANCE(_LS, _LD)	((_LD) >= (_LS) ?			\
+				 (_LD) - (_LS) :			\
+				 (_LD) + MAX_ROUTER_PORTS - (_LS))
+
+/* Router register addresses */
+
+#define RR_STATUS_REV_ID	0x00000	/* Status register and Revision ID  */
+#define RR_PORT_RESET		0x00008	/* Multiple port reset              */
+#define RR_PROT_CONF		0x00010	/* Inter-partition protection conf. */
+#define RR_GLOBAL_PORT_DEF	0x00018 /* Global Port definitions          */
+#define RR_GLOBAL_PARMS0	0x00020	/* Parameters shared by all 8 ports */
+#define RR_GLOBAL_PARMS1	0x00028	/* Parameters shared by all 8 ports */
+#define RR_DIAG_PARMS		0x00030	/* Parameters for diag. testing     */
+#define RR_DEBUG_ADDR		0x00038 /* Debug address select - debug port*/
+#define RR_LB_TO_L2		0x00040 /* Local Block to L2 cntrl intf reg */ 
+#define RR_L2_TO_LB		0x00048 /* L2 cntrl intf to Local Block reg */
+#define RR_JBUS_CONTROL		0x00050 /* read/write timing for JBUS intf  */
+
+#define RR_SCRATCH_REG0		0x00100	/* Scratch 0 is 64 bits */
+#define RR_SCRATCH_REG1		0x00108	/* Scratch 1 is 64 bits */
+#define RR_SCRATCH_REG2		0x00110	/* Scratch 2 is 64 bits */
+#define RR_SCRATCH_REG3		0x00118	/* Scratch 3 is 1 bit */
+#define RR_SCRATCH_REG4		0x00120	/* Scratch 4 is 1 bit */
+
+#define RR_JBUS0(_D)		(((_D) & 0x7) << 3 | 0x00200) /* JBUS0 addresses   */
+#define RR_JBUS1(_D)		(((_D) & 0x7) << 3 | 0x00240) /* JBUS1 addresses   */
+
+#define RR_SCRATCH_REG0_WZ	0x00500	/* Scratch 0 is 64 bits */
+#define RR_SCRATCH_REG1_WZ	0x00508	/* Scratch 1 is 64 bits */
+#define RR_SCRATCH_REG2_WZ	0x00510	/* Scratch 2 is 64 bits */
+#define RR_SCRATCH_REG3_SZ	0x00518	/* Scratch 3 is 1 bit */
+#define RR_SCRATCH_REG4_SZ	0x00520	/* Scratch 4 is 1 bit */
+
+#define RR_VECTOR_HW_BAR(context) (0x08000 | (context)<<3) /* barrier config registers */
+/* Port-specific registers (_L is the link number from 1 to 8) */
+
+#define RR_PORT_PARMS(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0000) /* LLP parameters     */
+#define RR_STATUS_ERROR(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0008) /* Port-related errs  */
+#define RR_CHANNEL_TEST(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0010) /* Port LLP chan test */
+#define RR_RESET_MASK(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0018) /* Remote reset mask  */
+#define RR_HISTOGRAM0(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0020) /* Port usage histgrm */
+#define RR_HISTOGRAM1(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0028) /* Port usage histgrm */
+#define RR_HISTOGRAM0_WC(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0030) /* Port usage histgrm */
+#define RR_HISTOGRAM1_WC(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0038) /* Port usage histgrm */
+#define RR_ERROR_CLEAR(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0088) /* Read/clear errors  */
+#define RR_GLOBAL_TABLE0(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0100) /* starting address of global table for this port */
+#define RR_GLOBAL_TABLE(_L, _x) (RR_GLOBAL_TABLE0(_L) + ((_x) << 3))
+#define RR_LOCAL_TABLE0(_L)	(((_L+1) & 0xe) << 15 | ((_L+1) & 0x1) << 11 | 0x0200) /* starting address of local table for this port */
+#define RR_LOCAL_TABLE(_L, _x) (RR_LOCAL_TABLE0(_L) + ((_x) << 3))
+
+#define RR_META_ENTRIES		16
+
+#define RR_LOCAL_ENTRIES	128
+
+/*
+ * RR_STATUS_REV_ID mask and shift definitions
+ */
+
+#define RSRI_INPORT_SHFT	52
+#define RSRI_INPORT_MASK	(UINT64_CAST 0xf << 52)
+#define RSRI_LINKWORKING_BIT(_L) (35 + 2 * (_L))
+#define RSRI_LINKWORKING(_L)	(UINT64_CAST 1 << (35 + 2 * (_L)))
+#define RSRI_LINKRESETFAIL(_L)	(UINT64_CAST 1 << (34 + 2 * (_L)))
+#define RSRI_LSTAT_SHFT(_L)	(34 + 2 * (_L))
+#define RSRI_LSTAT_MASK(_L)	(UINT64_CAST 0x3 << 34 + 2 * (_L))
+#define RSRI_LOCALSBERROR	(UINT64_CAST 1 << 35)
+#define RSRI_LOCALSTUCK		(UINT64_CAST 1 << 34)
+#define RSRI_LOCALBADVEC	(UINT64_CAST 1 << 33)
+#define RSRI_LOCALTAILERR	(UINT64_CAST 1 << 32)
+#define RSRI_LOCAL_SHFT 	32
+#define RSRI_LOCAL_MASK		(UINT64_CAST 0xf << 32)
+#define RSRI_CHIPREV_SHFT	28
+#define RSRI_CHIPREV_MASK	(UINT64_CAST 0xf << 28)
+#define RSRI_CHIPID_SHFT	12
+#define RSRI_CHIPID_MASK	(UINT64_CAST 0xffff << 12)
+#define RSRI_MFGID_SHFT		1
+#define RSRI_MFGID_MASK		(UINT64_CAST 0x7ff << 1)
+
+#define RSRI_LSTAT_WENTDOWN	0
+#define RSRI_LSTAT_RESETFAIL	1
+#define RSRI_LSTAT_LINKUP	2
+#define RSRI_LSTAT_NOTUSED	3
+
+/*
+ * RR_PORT_RESET mask definitions
+ */
+
+#define RPRESET_WARM		(UINT64_CAST 1 << 9)
+#define RPRESET_LINK(_L)	(UINT64_CAST 1 << (_L))
+#define RPRESET_LOCAL		(UINT64_CAST 1)
+
+/*
+ * RR_PROT_CONF mask and shift definitions
+ */
+
+#define RPCONF_DIRCMPDIS_SHFT	13
+#define RPCONF_DIRCMPDIS_MASK	(UINT64_CAST 1 << 13)
+#define RPCONF_FORCELOCAL	(UINT64_CAST 1 << 12)
+#define RPCONF_FLOCAL_SHFT	12
+#define RPCONF_METAID_SHFT	8
+#define RPCONF_METAID_MASK	(UINT64_CAST 0xf << 8)
+#define RPCONF_RESETOK(_L)	(UINT64_CAST 1 << ((_L) - 1))
+
+/*
+ * RR_GLOBAL_PORT_DEF mask and shift definitions
+ */
+
+#define RGPD_MGLBLNHBR_ID_SHFT	12	/* -global neighbor ID */
+#define RGPD_MGLBLNHBR_ID_MASK	(UINT64_CAST 0xf << 12)
+#define RGPD_MGLBLNHBR_VLD_SHFT	11	/* -global neighbor Valid */
+#define RGPD_MGLBLNHBR_VLD_MASK	(UINT64_CAST 0x1 << 11)
+#define RGPD_MGLBLPORT_SHFT	8	/* -global neighbor Port */
+#define RGPD_MGLBLPORT_MASK	(UINT64_CAST 0x7 << 8)
+#define RGPD_PGLBLNHBR_ID_SHFT	4	/* +global neighbor ID */
+#define RGPD_PGLBLNHBR_ID_MASK	(UINT64_CAST 0xf << 4)
+#define RGPD_PGLBLNHBR_VLD_SHFT	3	/* +global neighbor Valid */
+#define RGPD_PGLBLNHBR_VLD_MASK	(UINT64_CAST 0x1 << 3)
+#define RGPD_PGLBLPORT_SHFT	0	/* +global neighbor Port */
+#define RGPD_PGLBLPORT_MASK	(UINT64_CAST 0x7 << 0)
+
+#define GLBL_PARMS_REGS		2	/* Two Global Parms registers */
+
+/*
+ * RR_GLOBAL_PARMS0 mask and shift definitions
+ */
+
+#define RGPARM0_ARB_VALUE_SHFT	54	/* Local Block Arbitration State */
+#define RGPARM0_ARB_VALUE_MASK	(UINT64_CAST 0x7 << 54)
+#define RGPARM0_ROTATEARB_SHFT	53	/* Rotate Local Block Arbitration */
+#define RGPARM0_ROTATEARB_MASK	(UINT64_CAST 0x1 << 53)
+#define RGPARM0_FAIREN_SHFT	52	/* Fairness logic Enable */
+#define RGPARM0_FAIREN_MASK	(UINT64_CAST 0x1 << 52)
+#define RGPARM0_LOCGNTTO_SHFT	40	/* Local grant timeout */
+#define RGPARM0_LOCGNTTO_MASK	(UINT64_CAST 0xfff << 40)
+#define RGPARM0_DATELINE_SHFT	38	/* Dateline crossing router */
+#define RGPARM0_DATELINE_MASK	(UINT64_CAST 0x1 << 38)
+#define RGPARM0_MAXRETRY_SHFT	28	/* Max retry count */
+#define RGPARM0_MAXRETRY_MASK	(UINT64_CAST 0x3ff << 28)
+#define RGPARM0_URGWRAP_SHFT	20	/* Urgent wrap */
+#define RGPARM0_URGWRAP_MASK	(UINT64_CAST 0xff << 20)
+#define RGPARM0_DEADLKTO_SHFT	16	/* Deadlock timeout */
+#define RGPARM0_DEADLKTO_MASK	(UINT64_CAST 0xf << 16)
+#define RGPARM0_URGVAL_SHFT	12	/* Urgent value */
+#define RGPARM0_URGVAL_MASK	(UINT64_CAST 0xf << 12)
+#define RGPARM0_VCHSELEN_SHFT	11	/* VCH_SEL_EN */
+#define RGPARM0_VCHSELEN_MASK	(UINT64_CAST 0x1 << 11)
+#define RGPARM0_LOCURGTO_SHFT	9	/* Local urgent timeout */
+#define RGPARM0_LOCURGTO_MASK	(UINT64_CAST 0x3 << 9)
+#define RGPARM0_TAILVAL_SHFT	5	/* Tail value */
+#define RGPARM0_TAILVAL_MASK	(UINT64_CAST 0xf << 5)
+#define RGPARM0_CLOCK_SHFT	1	/* Global clock select */
+#define RGPARM0_CLOCK_MASK	(UINT64_CAST 0xf << 1)
+#define RGPARM0_BYPEN_SHFT	0
+#define RGPARM0_BYPEN_MASK	(UINT64_CAST 1)	/* Bypass enable */
+
+/*
+ * RR_GLOBAL_PARMS1 shift and mask definitions
+ */
+
+#define RGPARM1_TTOWRAP_SHFT	12	/* Tail timeout wrap */
+#define RGPARM1_TTOWRAP_MASK	(UINT64_CAST 0xfffff << 12)
+#define RGPARM1_AGERATE_SHFT	8	/* Age rate */
+#define RGPARM1_AGERATE_MASK	(UINT64_CAST 0xf << 8)
+#define RGPARM1_JSWSTAT_SHFT	0	/* JTAG Sw Register bits */
+#define RGPARM1_JSWSTAT_MASK	(UINT64_CAST 0xff << 0)
+
+/*
+ * RR_DIAG_PARMS mask and shift definitions
+ */
+
+#define RDPARM_ABSHISTOGRAM	(UINT64_CAST 1 << 17)	/* Absolute histgrm */
+#define RDPARM_DEADLOCKRESET	(UINT64_CAST 1 << 16)	/* Reset on deadlck */
+#define RDPARM_DISABLE(_L)	(UINT64_CAST 1 << ((_L) +  7))
+#define RDPARM_SENDERROR(_L)	(UINT64_CAST 1 << ((_L) -  1))
+
+/*
+ * RR_DEBUG_ADDR mask and shift definitions
+ */
+
+#define RDA_DATA_SHFT		10	/* Observed debug data */
+#define RDA_DATA_MASK		(UINT64_CAST 0xffff << 10)
+#define RDA_ADDR_SHFT		0	/* debug address for data */
+#define RDA_ADDR_MASK		(UINT64_CAST 0x3ff << 0)
+
+/*
+ * RR_LB_TO_L2 mask and shift definitions
+ */
+
+#define RLBTOL2_DATA_VLD_SHFT	32	/* data is valid for JTAG controller */
+#define RLBTOL2_DATA_VLD_MASK	(UINT64_CAST 0x1 << 32)
+#define RLBTOL2_DATA_SHFT	0	/* data bits for JTAG controller */
+#define RLBTOL2_DATA_MASK	(UINT64_CAST 0xffffffff)
+
+/*
+ * RR_L2_TO_LB mask and shift definitions
+ */
+
+#define RL2TOLB_DATA_VLD_SHFT	33	/* data is valid from JTAG controller */
+#define RL2TOLB_DATA_VLD_MASK	(UINT64_CAST 0x1 << 33)
+#define RL2TOLB_PARITY_SHFT	32	/* sw implemented parity for data */
+#define RL2TOLB_PARITY_MASK	(UINT64_CAST 0x1 << 32)
+#define RL2TOLB_DATA_SHFT	0	/* data bits from JTAG controller */
+#define RL2TOLB_DATA_MASK	(UINT64_CAST 0xffffffff)
+
+/*
+ * RR_JBUS_CONTROL mask and shift definitions
+ */
 
-#if CONFIG_SGI_IP35 || CONFIG_IA64_SGI_SN1 || CONFIG_IA64_GENERIC
-#include <asm/sn/sn1/router.h>
+#define RJC_POS_BITS_SHFT	20	/* Router position bits */
+#define RJC_POS_BITS_MASK	(UINT64_CAST 0xf << 20)
+#define RJC_RD_DATA_STROBE_SHFT	16	/* count when read data is strobed in */
+#define RJC_RD_DATA_STROBE_MASK	(UINT64_CAST 0xf << 16)
+#define RJC_WE_OE_HOLD_SHFT	8	/* time OE or WE is held */
+#define RJC_WE_OE_HOLD_MASK	(UINT64_CAST 0xff << 8)
+#define RJC_ADDR_SET_HLD_SHFT	0	/* time address driven around OE/WE */
+#define RJC_ADDR_SET_HLD_MASK	(UINT64_CAST 0xff)
+
+/*
+ * RR_SCRATCH_REGx mask and shift definitions
+ *  note: these fields represent a software convention, and are not
+ *        understood/interpreted by the hardware. 
+ */
+
+#define	RSCR0_BOOTED_SHFT	63
+#define	RSCR0_BOOTED_MASK	(UINT64_CAST 0x1 << RSCR0_BOOTED_SHFT)
+#define RSCR0_LOCALID_SHFT	56
+#define RSCR0_LOCALID_MASK	(UINT64_CAST 0x7f << RSCR0_LOCALID_SHFT)
+#define	RSCR0_UNUSED_SHFT	48
+#define	RSCR0_UNUSED_MASK	(UINT64_CAST 0xff << RSCR0_UNUSED_SHFT)
+#define RSCR0_NIC_SHFT		0
+#define RSCR0_NIC_MASK		(UINT64_CAST 0xffffffffffff)
+
+#define RSCR1_MODID_SHFT	0
+#define RSCR1_MODID_MASK	(UINT64_CAST 0xffff)
+
+/*
+ * RR_VECTOR_HW_BAR mask and shift definitions
+ */
+
+#define BAR_TX_SHFT		27	/* Barrier in trans(m)it when read */
+#define BAR_TX_MASK		(UINT64_CAST 1 << BAR_TX_SHFT)
+#define BAR_VLD_SHFT		26	/* Valid Configuration */
+#define BAR_VLD_MASK		(UINT64_CAST 1 << BAR_VLD_SHFT)
+#define BAR_SEQ_SHFT		24	/* Sequence number */
+#define BAR_SEQ_MASK		(UINT64_CAST 3 << BAR_SEQ_SHFT)
+#define BAR_LEAFSTATE_SHFT	18	/* Leaf State */
+#define BAR_LEAFSTATE_MASK	(UINT64_CAST 0x3f << BAR_LEAFSTATE_SHFT)
+#define BAR_PARENT_SHFT		14	/* Parent Port */
+#define BAR_PARENT_MASK		(UINT64_CAST 0xf << BAR_PARENT_SHFT)
+#define BAR_CHILDREN_SHFT	6	/* Child Select port bits */
+#define BAR_CHILDREN_MASK	(UINT64_CAST 0xff << BAR_CHILDREN_SHFT)
+#define BAR_LEAFCOUNT_SHFT	0	/* Leaf Count to trigger parent */
+#define BAR_LEAFCOUNT_MASK	(UINT64_CAST 0x3f)
+
+/*
+ * RR_PORT_PARMS(_L) mask and shift definitions
+ */
+
+#define RPPARM_MIPRESETEN_SHFT	29	/* Message In Progress reset enable */
+#define RPPARM_MIPRESETEN_MASK	(UINT64_CAST 0x1 << 29)
+#define RPPARM_UBAREN_SHFT	28	/* Enable user barrier requests */
+#define RPPARM_UBAREN_MASK	(UINT64_CAST 0x1 << 28)
+#define RPPARM_OUTPDTO_SHFT	24	/* Output Port Deadlock TO value */
+#define RPPARM_OUTPDTO_MASK	(UINT64_CAST 0xf << 24)
+#define RPPARM_PORTMATE_SHFT	21	/* Port Mate for the port */
+#define RPPARM_PORTMATE_MASK	(UINT64_CAST 0x7 << 21)
+#define RPPARM_HISTEN_SHFT	20	/* Histogram counter enable */
+#define RPPARM_HISTEN_MASK	(UINT64_CAST 0x1 << 20)
+#define RPPARM_HISTSEL_SHFT	18
+#define RPPARM_HISTSEL_MASK	(UINT64_CAST 0x3 << 18)
+#define RPPARM_DAMQHS_SHFT	16
+#define RPPARM_DAMQHS_MASK	(UINT64_CAST 0x3 << 16)
+#define RPPARM_NULLTO_SHFT	10
+#define RPPARM_NULLTO_MASK	(UINT64_CAST 0x3f << 10)
+#define RPPARM_MAXBURST_SHFT	0
+#define RPPARM_MAXBURST_MASK	(UINT64_CAST 0x3ff)
+
+/*
+ * NOTE: Normally the kernel tracks only UTILIZATION statistics.
+ * The other 2 should not be used, except during any experimentation
+ * with the router.
+ */
+#define RPPARM_HISTSEL_AGE	0	/* Histogram age characterization.  */
+#define RPPARM_HISTSEL_UTIL	1	/* Histogram link utilization 	    */
+#define RPPARM_HISTSEL_DAMQ	2	/* Histogram DAMQ characterization. */
+
+/*
+ * RR_STATUS_ERROR(_L) and RR_ERROR_CLEAR(_L) mask and shift definitions
+ */
+#define RSERR_POWERNOK		(UINT64_CAST 1 << 38)
+#define RSERR_PORT_DEADLOCK     (UINT64_CAST 1 << 37)
+#define RSERR_WARMRESET         (UINT64_CAST 1 << 36)
+#define RSERR_LINKRESET         (UINT64_CAST 1 << 35)
+#define RSERR_RETRYTIMEOUT      (UINT64_CAST 1 << 34)
+#define RSERR_FIFOOVERFLOW	(UINT64_CAST 1 << 33)
+#define RSERR_ILLEGALPORT	(UINT64_CAST 1 << 32)
+#define RSERR_DEADLOCKTO_SHFT	28
+#define RSERR_DEADLOCKTO_MASK	(UINT64_CAST 0xf << 28)
+#define RSERR_RECVTAILTO_SHFT	24
+#define RSERR_RECVTAILTO_MASK	(UINT64_CAST 0xf << 24)
+#define RSERR_RETRYCNT_SHFT	16
+#define RSERR_RETRYCNT_MASK	(UINT64_CAST 0xff << 16)
+#define RSERR_CBERRCNT_SHFT	8
+#define RSERR_CBERRCNT_MASK	(UINT64_CAST 0xff << 8)
+#define RSERR_SNERRCNT_SHFT	0
+#define RSERR_SNERRCNT_MASK	(UINT64_CAST 0xff << 0)
+
+
+#define PORT_STATUS_UP		(1 << 0)	/* Router link up */
+#define PORT_STATUS_FENCE	(1 << 1)	/* Router link fenced */
+#define PORT_STATUS_RESETFAIL	(1 << 2)	/* Router link didnot 
+						 * come out of reset */
+#define PORT_STATUS_DISCFAIL	(1 << 3)	/* Router link failed after 
+						 * out of reset but before
+						 * router tables were
+						 * programmed
+						 */
+#define PORT_STATUS_KERNFAIL	(1 << 4)	/* Router link failed
+						 * after reset and the 
+						 * router tables were
+						 * programmed
+						 */
+#define PORT_STATUS_UNDEF	(1 << 5)	/* Unable to pinpoint
+						 * why the router link
+						 * went down
+						 */	
+#define PROBE_RESULT_BAD	(-1)		/* Set if any of the router
+						 * links failed after reset
+						 */
+#define PROBE_RESULT_GOOD	(0)		/* Set if all the router links
+						 * which came out of reset 
+						 * are up
+						 */
+
+/* Should be enough for 256 CPUs */
+#define MAX_RTR_BREADTH		64		/* Max # of routers possible */
+
+/* Get the require set of bits in a var. corr to a sequence of bits  */
+#define GET_FIELD(var, fname) \
+        ((var) >> fname##_SHFT & fname##_MASK >> fname##_SHFT)
+/* Set the require set of bits in a var. corr to a sequence of bits  */
+#define SET_FIELD(var, fname, fval) \
+        ((var) = (var) & ~fname##_MASK | (uint64_t) (fval) << fname##_SHFT)
+
+
+#ifndef __ASSEMBLY__
+
+typedef struct router_map_ent_s {
+	uint64_t	nic;
+	moduleid_t	module;
+	slotid_t	slot;
+} router_map_ent_t;
+
+struct rr_status_error_fmt {
+	uint64_t	rserr_unused		: 30,
+			rserr_fifooverflow	: 1,
+			rserr_illegalport	: 1,
+			rserr_deadlockto	: 4,
+			rserr_recvtailto	: 4,
+			rserr_retrycnt		: 8,
+			rserr_cberrcnt		: 8,
+			rserr_snerrcnt		: 8;
+};
+
+/*
+ * This type is used to store "absolute" counts of router events
+ */
+typedef int	router_count_t;
+
+/* All utilizations are on a scale from 0 - 1023. */
+#define RP_BYPASS_UTIL	0
+#define RP_RCV_UTIL	1
+#define RP_SEND_UTIL	2
+#define RP_TOTAL_PKTS	3	/* Free running clock/packet counter */
+
+#define RP_NUM_UTILS	3
+
+#define RP_HIST_REGS	2
+#define RP_NUM_BUCKETS  4
+#define RP_HIST_TYPES	3
+
+#define RP_AGE0		0
+#define RP_AGE1		1
+#define RP_AGE2		2
+#define RP_AGE3		3
+
+
+#define RR_UTIL_SCALE	1024
+
+/*
+ * Router port-oriented information
+ */
+typedef struct router_port_info_s {
+	router_reg_t	rp_histograms[RP_HIST_REGS];/* Port usage info */
+	router_reg_t	rp_port_error;		/* Port error info */
+	router_count_t	rp_retry_errors;	/* Total retry errors */
+	router_count_t	rp_sn_errors;		/* Total sn errors */
+	router_count_t	rp_cb_errors;		/* Total cb errors */
+	int		rp_overflows;		/* Total count overflows */
+	int		rp_excess_err;		/* Port has excessive errors */
+	ushort		rp_util[RP_NUM_BUCKETS];/* Port utilization */
+} router_port_info_t;
+
+#define ROUTER_INFO_VERSION	7
+
+struct lboard_s;
+
+/*
+ * Router information
+ */
+typedef struct router_info_s {
+	char		ri_version;	/* structure version		    */
+	cnodeid_t	ri_cnode;	/* cnode of its legal guardian hub  */
+	nasid_t		ri_nasid;	/* Nasid of same 		    */
+	char		ri_ledcache;	/* Last LED bitmap		    */
+	char		ri_leds;	/* Current LED bitmap		    */
+	char		ri_portmask;	/* Active port bitmap		    */
+	router_reg_t	ri_stat_rev_id;	/* Status rev ID value		    */
+	net_vec_t	ri_vector;	/* vector from guardian to router   */
+	int		ri_writeid;	/* router's vector write ID	    */
+	int64_t	ri_timebase;	/* Time of first sample		    */
+	int64_t	ri_timestamp;	/* Time of last sample		    */
+	router_port_info_t ri_port[MAX_ROUTER_PORTS]; /* per port info      */
+	moduleid_t	ri_module;	/* Which module are we in?	    */
+	slotid_t	ri_slotnum;	/* Which slot are we in?	    */
+	router_reg_t	ri_glbl_parms[GLBL_PARMS_REGS];
+					/* Global parms0&1 register contents*/
+	devfs_handle_t	ri_vertex;	/* hardware graph vertex            */
+	router_reg_t	ri_prot_conf;	/* protection config. register	    */
+	int64_t	ri_per_minute;	/* Ticks per minute		    */
+
+	/*
+	 * Everything below here is for kernel use only and may change at	
+	 * at any time with or without a change in teh revision number
+	 *
+	 * Any pointers or things that come and go with DEBUG must go at
+ 	 * the bottom of the structure, below the user stuff.
+	 */
+	char		ri_hist_type;   /* histogram type		    */
+	devfs_handle_t	ri_guardian;	/* guardian node for the router	    */
+	int64_t	ri_last_print;	/* When did we last print	    */
+	char		ri_print;	/* Should we print 		    */
+	char 		ri_just_blink;	/* Should we blink the LEDs         */
+	
+#ifdef DEBUG
+	int64_t	ri_deltatime;	/* Time it took to sample	    */
 #endif
+	spinlock_t	ri_lock;	/* Lock for access to router info   */
+	net_vec_t	*ri_vecarray;	/* Pointer to array of vectors	    */
+	struct lboard_s	*ri_brd;	/* Pointer to board structure	    */
+	char *		ri_name;	/* This board's hwg path 	    */
+        unsigned char	ri_port_maint[MAX_ROUTER_PORTS]; /* should we send a 
+					message to availmon */
+} router_info_t;
+
+
+/* Router info location specifiers */
+
+#define RIP_PROMLOG			2	/* Router info in promlog */
+#define RIP_CONSOLE			4	/* Router info on console */
+
+#define ROUTER_INFO_PRINT(_rip,_where)	(_rip->ri_print |= _where)	
+					/* Set the field used to check if a 
+					 * router info can be printed
+					 */
+#define IS_ROUTER_INFO_PRINTED(_rip,_where)	\
+					(_rip->ri_print & _where)	
+					/* Was the router info printed to
+					 * the given location (_where) ?
+					 * Mainly used to prevent duplicate
+					 * router error states.
+					 */
+#define ROUTER_INFO_LOCK(_rip,_s)	_s = mutex_spinlock(&(_rip->ri_lock))
+					/* Take the lock on router info
+					 * to gain exclusive access
+					 */
+#define ROUTER_INFO_UNLOCK(_rip,_s)	mutex_spinunlock(&(_rip->ri_lock),_s)
+					/* Release the lock on router info */
+/* 
+ * Router info hanging in the nodepda 
+ */
+typedef struct nodepda_router_info_s {
+	devfs_handle_t 	router_vhdl;	/* vertex handle of the router 	    */
+	short		router_port;	/* port thru which we entered       */
+	short		router_portmask;
+	moduleid_t	router_module;	/* module in which router is there  */
+	slotid_t	router_slot;	/* router slot			    */
+	unsigned char	router_type;	/* kind of router 		    */
+	net_vec_t	router_vector;	/* vector from the guardian node    */
+
+	router_info_t	*router_infop;	/* info hanging off the hwg vertex  */
+	struct nodepda_router_info_s *router_next;
+	                                /* pointer to next element 	    */
+} nodepda_router_info_t;
+
+#define ROUTER_NAME_SIZE	20	/* Max size of a router name */
+
+#define NORMAL_ROUTER_NAME	"normal_router"
+#define NULL_ROUTER_NAME	"null_router"
+#define META_ROUTER_NAME	"meta_router"
+#define REPEATER_ROUTER_NAME	"repeater_router"
+#define UNKNOWN_ROUTER_NAME	"unknown_router" 
+
+/* The following definitions are needed by the router traversing
+ * code either using the hardware graph or using vector operations.
+ */
+/* Structure of the router queue element */
+typedef struct router_elt_s {
+	union {
+		/* queue element structure during router probing */
+		struct {
+			/* number-in-a-can (unique) for the router */
+			nic_t		nic;	
+			/* vector route from the master hub to 
+			 * this router.
+			 */
+			net_vec_t	vec;	
+			/* port status */
+			uint64_t	status;	
+			char		port_status[MAX_ROUTER_PORTS + 1];
+		} r_elt;
+		/* queue element structure during router guardian 
+		 * assignment
+		 */
+		struct {
+			/* vertex handle for the router */
+			devfs_handle_t	vhdl;
+			/* guardian for this router */
+			devfs_handle_t	guard;	
+			/* vector router from the guardian to the router */
+			net_vec_t	vec;
+		} k_elt;
+	} u;
+	                        /* easy to use port status interpretation */
+} router_elt_t;
+
+/* structure of the router queue */
+
+typedef struct router_queue_s {
+	char		head;	/* Point where a queue element is inserted */
+	char		tail;	/* Point where a queue element is removed */
+	int		type;
+	router_elt_t	array[MAX_RTR_BREADTH];
+	                        /* Entries for queue elements */
+} router_queue_t;
+
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * RR_HISTOGRAM(_L) mask and shift definitions
+ * There are two 64 bit histogram registers, so the following macros take
+ * into account dealing with an array of 4 32 bit values indexed by _x
+ */
+
+#define RHIST_BUCKET_SHFT(_x)	(32 * ((_x) & 0x1))
+#define RHIST_BUCKET_MASK(_x)	(UINT64_CAST 0xffffffff << RHIST_BUCKET_SHFT((_x) & 0x1))
+#define RHIST_GET_BUCKET(_x, _reg)	\
+	((RHIST_BUCKET_MASK(_x) & ((_reg)[(_x) >> 1])) >> RHIST_BUCKET_SHFT(_x))
+
+/*
+ * RR_RESET_MASK(_L) mask and shift definitions
+ */
+
+#define RRM_RESETOK(_L)		(UINT64_CAST 1 << ((_L) - 1))
+#define RRM_RESETOK_ALL		ALL_PORTS
+
+/*
+ * RR_META_TABLE(_x) and RR_LOCAL_TABLE(_x) mask and shift definitions
+ */
+
+#define RTABLE_SHFT(_L)		(4 * ((_L) - 1))
+#define RTABLE_MASK(_L)		(UINT64_CAST 0x7 << RTABLE_SHFT(_L))
+
+
+#define	ROUTERINFO_STKSZ	4096
+
+#ifndef __ASSEMBLY__
+
+int router_reg_read(router_info_t *rip, int regno, router_reg_t *val);
+int router_reg_write(router_info_t *rip, int regno, router_reg_t val);
+int router_get_info(devfs_handle_t routerv, router_info_t *, int);
+int router_init(cnodeid_t cnode,int writeid, nodepda_router_info_t *npda_rip);
+int router_set_leds(router_info_t *rip);
+void router_print_state(router_info_t *rip, int level,
+		   void (*pf)(int, char *, ...),int print_where);
+void capture_router_stats(router_info_t *rip);
+
+
+int 	probe_routers(void);
+void 	get_routername(unsigned char brd_type,char *rtrname);
+void 	router_guardians_set(devfs_handle_t hwgraph_root);
+int 	router_hist_reselect(router_info_t *, int64_t);
+#endif /* __ASSEMBLY__ */
 
-#endif /* _ASM_SN_ROUTER_H */
+#endif /* _ASM_IA64_SN_ROUTER_H */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)