slotnum.h
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上传日期:2013-04-10
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- /* $Id$
- *
- * 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, 2000-2001 Silicon Graphics, Inc. All rights reserved.
- */
- #ifndef _ASM_IA64_SN_SN1_SLOTNUM_H
- #define _ASM_IA64_SN_SN1_SLOTNUM_H
- #define SLOTNUM_MAXLENGTH 16
- /*
- * This file attempts to define a slot number space across all slots.
- *
- * Node slots
- * Router slots
- * Crosstalk slots
- *
- * Other slots are children of their parent crosstalk slot:
- * PCI slots
- * VME slots
- *
- * The PCI class has been added since the XBridge ASIC on SN-MIPS
- * has built-in PCI bridges (2). On IBricks, widget E & F serve
- * PCI busses, and on PBricks all widgets serve as PCI busses
- * with the use of the super-bridge mode of the XBridge ASIC.
- */
- #define SLOTNUM_NODE_CLASS 0x00 /* Node */
- #define SLOTNUM_ROUTER_CLASS 0x10 /* Router */
- #define SLOTNUM_XTALK_CLASS 0x20 /* Xtalk */
- #define SLOTNUM_MIDPLANE_CLASS 0x30 /* Midplane */
- #define SLOTNUM_XBOW_CLASS 0x40 /* Xbow */
- #define SLOTNUM_KNODE_CLASS 0x50 /* Kego node */
- #define SLOTNUM_PCI_CLASS 0x60 /* PCI widgets on XBridge */
- #define SLOTNUM_INVALID_CLASS 0xf0 /* Invalid */
- #define SLOTNUM_CLASS_MASK 0xf0
- #define SLOTNUM_SLOT_MASK 0x0f
- #define SLOTNUM_GETCLASS(_sn) ((_sn) & SLOTNUM_CLASS_MASK)
- #define SLOTNUM_GETSLOT(_sn) ((_sn) & SLOTNUM_SLOT_MASK)
- /* This determines module to pnode mapping. */
- /* NODESLOTS_PER_MODULE has changed from 4 to 6
- * to support the 12P 4IO configuration. This change
- * helps in minimum number of changes to code which
- * depend on the number of node boards within a module.
- */
- #define NODESLOTS_PER_MODULE 6
- #define NODESLOTS_PER_MODULE_SHFT 2
- #define HIGHEST_I2C_VISIBLE_NODESLOT 4
- #define RTRSLOTS_PER_MODULE 2
- #if __KERNEL__
- #include <asm/sn/xtalk/xtalk.h>
- extern slotid_t xbwidget_to_xtslot(int crossbow, int widget);
- extern slotid_t hub_slotbits_to_slot(slotid_t slotbits);
- extern slotid_t hub_slot_to_crossbow(slotid_t hub_slot);
- extern slotid_t router_slotbits_to_slot(slotid_t slotbits);
- extern slotid_t get_node_slotid(nasid_t nasid);
- extern slotid_t get_my_slotid(void);
- extern slotid_t get_node_crossbow(nasid_t);
- extern xwidgetnum_t hub_slot_to_widget(slotid_t);
- extern void get_slotname(slotid_t, char *);
- extern void get_my_slotname(char *);
- extern slotid_t get_widget_slotnum(int xbow, int widget);
- extern void get_widget_slotname(int, int, char *);
- extern void router_slotbits_to_slotname(int, char *);
- extern slotid_t meta_router_slotbits_to_slot(slotid_t) ;
- extern slotid_t hub_slot_get(void);
- extern int node_can_talk_to_elsc(void);
- extern int slot_to_widget(int) ;
- #define MAX_IO_SLOT_NUM 12
- #define MAX_NODE_SLOT_NUM 4
- #define MAX_ROUTER_SLOTNUM 2
- #endif /* __KERNEL__ */
- #endif /* _ASM_IA64_SN_SN1_SLOTNUM_H */