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The NVRAM for both Tekram and Symbios boards allows the user to set the speed and width for individual targets. I took that code out in March 2004 when we introduced Domain Validation, but it seems there's still a legitimate need for it in some configurations. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
214 lines
6.2 KiB
C
214 lines
6.2 KiB
C
/*
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* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
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* of PCI-SCSI IO processors.
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*
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* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
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*
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* This driver is derived from the Linux sym53c8xx driver.
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* Copyright (C) 1998-2000 Gerard Roudier
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*
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* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
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* a port of the FreeBSD ncr driver to Linux-1.2.13.
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*
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* The original ncr driver has been written for 386bsd and FreeBSD by
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* Wolfgang Stanglmeier <wolf@cologne.de>
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* Stefan Esser <se@mi.Uni-Koeln.de>
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* Copyright (C) 1994 Wolfgang Stanglmeier
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*
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* Other major contributions:
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*
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* NVRAM detection and reading.
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* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
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*
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*-----------------------------------------------------------------------------
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef SYM_NVRAM_H
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#define SYM_NVRAM_H
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#include "sym53c8xx.h"
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/*
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* Symbios NVRAM data format
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*/
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#define SYMBIOS_NVRAM_SIZE 368
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#define SYMBIOS_NVRAM_ADDRESS 0x100
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struct Symbios_nvram {
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/* Header 6 bytes */
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u_short type; /* 0x0000 */
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u_short byte_count; /* excluding header/trailer */
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u_short checksum;
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/* Controller set up 20 bytes */
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u_char v_major; /* 0x00 */
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u_char v_minor; /* 0x30 */
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u32 boot_crc;
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u_short flags;
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#define SYMBIOS_SCAM_ENABLE (1)
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#define SYMBIOS_PARITY_ENABLE (1<<1)
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#define SYMBIOS_VERBOSE_MSGS (1<<2)
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#define SYMBIOS_CHS_MAPPING (1<<3)
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#define SYMBIOS_NO_NVRAM (1<<3) /* ??? */
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u_short flags1;
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#define SYMBIOS_SCAN_HI_LO (1)
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u_short term_state;
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#define SYMBIOS_TERM_CANT_PROGRAM (0)
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#define SYMBIOS_TERM_ENABLED (1)
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#define SYMBIOS_TERM_DISABLED (2)
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u_short rmvbl_flags;
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#define SYMBIOS_RMVBL_NO_SUPPORT (0)
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#define SYMBIOS_RMVBL_BOOT_DEVICE (1)
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#define SYMBIOS_RMVBL_MEDIA_INSTALLED (2)
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u_char host_id;
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u_char num_hba; /* 0x04 */
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u_char num_devices; /* 0x10 */
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u_char max_scam_devices; /* 0x04 */
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u_char num_valid_scam_devices; /* 0x00 */
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u_char flags2;
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#define SYMBIOS_AVOID_BUS_RESET (1<<2)
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/* Boot order 14 bytes * 4 */
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struct Symbios_host{
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u_short type; /* 4:8xx / 0:nok */
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u_short device_id; /* PCI device id */
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u_short vendor_id; /* PCI vendor id */
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u_char bus_nr; /* PCI bus number */
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u_char device_fn; /* PCI device/function number << 3*/
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u_short word8;
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u_short flags;
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#define SYMBIOS_INIT_SCAN_AT_BOOT (1)
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u_short io_port; /* PCI io_port address */
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} host[4];
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/* Targets 8 bytes * 16 */
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struct Symbios_target {
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u_char flags;
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#define SYMBIOS_DISCONNECT_ENABLE (1)
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#define SYMBIOS_SCAN_AT_BOOT_TIME (1<<1)
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#define SYMBIOS_SCAN_LUNS (1<<2)
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#define SYMBIOS_QUEUE_TAGS_ENABLED (1<<3)
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u_char rsvd;
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u_char bus_width; /* 0x08/0x10 */
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u_char sync_offset;
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u_short sync_period; /* 4*period factor */
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u_short timeout;
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} target[16];
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/* Scam table 8 bytes * 4 */
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struct Symbios_scam {
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u_short id;
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u_short method;
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#define SYMBIOS_SCAM_DEFAULT_METHOD (0)
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#define SYMBIOS_SCAM_DONT_ASSIGN (1)
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#define SYMBIOS_SCAM_SET_SPECIFIC_ID (2)
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#define SYMBIOS_SCAM_USE_ORDER_GIVEN (3)
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u_short status;
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#define SYMBIOS_SCAM_UNKNOWN (0)
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#define SYMBIOS_SCAM_DEVICE_NOT_FOUND (1)
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#define SYMBIOS_SCAM_ID_NOT_SET (2)
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#define SYMBIOS_SCAM_ID_VALID (3)
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u_char target_id;
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u_char rsvd;
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} scam[4];
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u_char spare_devices[15*8];
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u_char trailer[6]; /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */
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};
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typedef struct Symbios_nvram Symbios_nvram;
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typedef struct Symbios_host Symbios_host;
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typedef struct Symbios_target Symbios_target;
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typedef struct Symbios_scam Symbios_scam;
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/*
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* Tekram NvRAM data format.
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*/
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#define TEKRAM_NVRAM_SIZE 64
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#define TEKRAM_93C46_NVRAM_ADDRESS 0
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#define TEKRAM_24C16_NVRAM_ADDRESS 0x40
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struct Tekram_nvram {
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struct Tekram_target {
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u_char flags;
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#define TEKRAM_PARITY_CHECK (1)
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#define TEKRAM_SYNC_NEGO (1<<1)
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#define TEKRAM_DISCONNECT_ENABLE (1<<2)
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#define TEKRAM_START_CMD (1<<3)
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#define TEKRAM_TAGGED_COMMANDS (1<<4)
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#define TEKRAM_WIDE_NEGO (1<<5)
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u_char sync_index;
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u_short word2;
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} target[16];
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u_char host_id;
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u_char flags;
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#define TEKRAM_MORE_THAN_2_DRIVES (1)
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#define TEKRAM_DRIVES_SUP_1GB (1<<1)
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#define TEKRAM_RESET_ON_POWER_ON (1<<2)
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#define TEKRAM_ACTIVE_NEGATION (1<<3)
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#define TEKRAM_IMMEDIATE_SEEK (1<<4)
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#define TEKRAM_SCAN_LUNS (1<<5)
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#define TEKRAM_REMOVABLE_FLAGS (3<<6) /* 0: disable; */
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/* 1: boot device; 2:all */
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u_char boot_delay_index;
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u_char max_tags_index;
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u_short flags1;
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#define TEKRAM_F2_F6_ENABLED (1)
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u_short spare[29];
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};
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typedef struct Tekram_nvram Tekram_nvram;
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typedef struct Tekram_target Tekram_target;
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#ifndef CONFIG_PARISC
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struct pdc_initiator { int dummy; };
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#endif
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/*
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* Union of supported NVRAM formats.
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*/
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struct sym_nvram {
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int type;
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#define SYM_SYMBIOS_NVRAM (1)
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#define SYM_TEKRAM_NVRAM (2)
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#define SYM_PARISC_PDC (3)
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#if SYM_CONF_NVRAM_SUPPORT
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union {
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Symbios_nvram Symbios;
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Tekram_nvram Tekram;
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struct pdc_initiator parisc;
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} data;
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#endif
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};
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#if SYM_CONF_NVRAM_SUPPORT
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void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram);
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void sym_nvram_setup_target (struct sym_tcb *tp, int target, struct sym_nvram *nvp);
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int sym_read_nvram (struct sym_device *np, struct sym_nvram *nvp);
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char *sym_nvram_type(struct sym_nvram *nvp);
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#else
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static inline void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram) { }
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static inline void sym_nvram_setup_target(struct sym_tcb *tp, struct sym_nvram *nvram) { }
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static inline int sym_read_nvram(struct sym_device *np, struct sym_nvram *nvp)
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{
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nvp->type = 0;
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return 0;
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}
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static inline char *sym_nvram_type(struct sym_nvram *nvp)
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{
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return "No NVRAM";
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}
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#endif
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#endif /* SYM_NVRAM_H */
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