Import Upstream version 0.4.5

kernel-2.6.9-55.0.2.EL/megaraid-2.20.4.6-rh2/mbox_defs.h

@@ -0,0 +1,823 @@
+/*
+ *
+ *			Linux MegaRAID Unified device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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.
+ *
+ * FILE		: mbox_defs.h
+ *
+ */
+#ifndef _MRAID_MBOX_DEFS_H_
+#define _MRAID_MBOX_DEFS_H_
+
+#include <linux/types.h>
+
+/*
+ * Commands and states for mailbox based controllers
+ */
+
+#define MBOXCMD_LREAD		0x01
+#define MBOXCMD_LWRITE		0x02
+#define MBOXCMD_PASSTHRU	0x03
+#define MBOXCMD_ADPEXTINQ	0x04
+#define MBOXCMD_ADAPTERINQ	0x05
+#define MBOXCMD_LREAD64		0xA7
+#define MBOXCMD_LWRITE64	0xA8
+#define MBOXCMD_PASSTHRU64	0xC3
+#define MBOXCMD_EXTPTHRU	0xE3
+
+#define MAIN_MISC_OPCODE	0xA4
+#define GET_MAX_SG_SUPPORT	0x01
+#define SUPPORT_EXT_CDB		0x16
+
+#define FC_NEW_CONFIG		0xA1
+#define NC_SUBOP_PRODUCT_INFO	0x0E
+#define NC_SUBOP_ENQUIRY3	0x0F
+#define ENQ3_GET_SOLICITED_FULL	0x02
+#define OP_DCMD_READ_CONFIG	0x04
+#define NEW_READ_CONFIG_8LD	0x67
+#define READ_CONFIG_8LD		0x07
+#define FLUSH_ADAPTER		0x0A
+#define FLUSH_SYSTEM		0xFE
+
+/*
+ * Command for random deletion of logical drives
+ */
+#define	FC_DEL_LOGDRV		0xA4
+#define	OP_SUP_DEL_LOGDRV	0x2A
+#define OP_GET_LDID_MAP		0x18
+#define OP_DEL_LOGDRV		0x1C
+
+/*
+ * BIOS commands
+ */
+#define IS_BIOS_ENABLED		0x62
+#define GET_BIOS		0x01
+#define CHNL_CLASS		0xA9
+#define GET_CHNL_CLASS		0x00
+#define SET_CHNL_CLASS		0x01
+#define CH_RAID			0x01
+#define CH_SCSI			0x00
+#define BIOS_PVT_DATA		0x40
+#define GET_BIOS_PVT_DATA	0x00
+
+
+/*
+ * Commands to support clustering
+ */
+#define GET_TARGET_ID		0x7D
+#define CLUSTER_OP		0x70
+#define GET_CLUSTER_MODE	0x02
+#define CLUSTER_CMD		0x6E
+#define RESERVE_LD		0x01
+#define RELEASE_LD		0x02
+#define RESET_RESERVATIONS	0x03
+#define RESERVATION_STATUS	0x04
+#define RESERVE_PD		0x05
+#define RELEASE_PD		0x06
+
+
+/*
+ * Module battery status
+ */
+#define BATTERY_MODULE_MISSING		0x01
+#define BATTERY_LOW_VOLTAGE		0x02
+#define BATTERY_TEMP_HIGH		0x04
+#define BATTERY_PACK_MISSING		0x08
+#define BATTERY_CHARGE_MASK		0x30
+#define BATTERY_CHARGE_DONE		0x00
+#define BATTERY_CHARGE_INPROG		0x10
+#define BATTERY_CHARGE_FAIL		0x20
+#define BATTERY_CYCLES_EXCEEDED		0x40
+
+/*
+ * Physical drive states.
+ */
+#define PDRV_UNCNF	0
+#define PDRV_ONLINE	3
+#define PDRV_FAILED	4
+#define PDRV_RBLD	5
+#define PDRV_HOTSPARE	6
+
+
+/*
+ * Raid logical drive states.
+ */
+#define RDRV_OFFLINE	0
+#define RDRV_DEGRADED	1
+#define RDRV_OPTIMAL	2
+#define RDRV_DELETED	3
+
+/*
+ * Read, write and cache policies
+ */
+#define NO_READ_AHEAD		0
+#define READ_AHEAD		1
+#define ADAP_READ_AHEAD		2
+#define WRMODE_WRITE_THRU	0
+#define WRMODE_WRITE_BACK	1
+#define CACHED_IO		0
+#define DIRECT_IO		1
+
+#define MAX_LOGICAL_DRIVES_8LD		8
+#define MAX_LOGICAL_DRIVES_40LD		40
+#define FC_MAX_PHYSICAL_DEVICES		256
+#define MAX_MBOX_CHANNELS		5
+#define MAX_MBOX_TARGET			15
+#define MBOX_MAX_PHYSICAL_DRIVES	MAX_MBOX_CHANNELS*MAX_MBOX_TARGET
+#define MAX_ROW_SIZE_40LD		32
+#define MAX_ROW_SIZE_8LD		8
+#define SPAN_DEPTH_8_SPANS		8
+#define SPAN_DEPTH_4_SPANS		4
+#define MAX_REQ_SENSE_LEN		0x20
+
+
+
+/**
+ * struct mbox_t - Driver and f/w handshake structure.
+ * @cmd		: firmware command
+ * @cmdid	: command id
+ * @numsectors	: number of sectors to be transferred
+ * @lba		: Logical Block Address on LD
+ * @xferaddr	: DMA address for data transfer
+ * @logdrv	: logical drive number
+ * @numsge	: number of scatter gather elements in sg list
+ * @resvd	: reserved
+ * @busy	: f/w busy, must wait to issue more commands.
+ * @numstatus	: number of commands completed.
+ * @status	: status of the commands completed
+ * @completed	: array of completed command ids.
+ * @poll	: poll and ack sequence
+ * @ack		: poll and ack sequence
+ *
+ * The central handshake structure between the driver and the firmware. This
+ * structure must be allocated by the driver and aligned at 8-byte boundary.
+ */
+#define MBOX_MAX_FIRMWARE_STATUS	46
+typedef struct {
+	uint8_t		cmd;
+	uint8_t		cmdid;
+	uint16_t	numsectors;
+	uint32_t	lba;
+	uint32_t	xferaddr;
+	uint8_t		logdrv;
+	uint8_t		numsge;
+	uint8_t		resvd;
+	uint8_t		busy;
+	uint8_t		numstatus;
+	uint8_t		status;
+	uint8_t		completed[MBOX_MAX_FIRMWARE_STATUS];
+	uint8_t		poll;
+	uint8_t		ack;
+} __attribute__ ((packed)) mbox_t;
+
+
+/**
+ * mbox64_t - 64-bit extension for the mailbox
+ * @segment_lo	: the low 32-bits of the address of the scatter-gather list
+ * @segment_hi	: the upper 32-bits of the address of the scatter-gather list
+ * @mbox	: 32-bit mailbox, whose xferadder field must be set to
+ *		0xFFFFFFFF
+ *
+ * This is the extension of the 32-bit mailbox to be able to perform DMA
+ * beyond 4GB address range.
+ */
+typedef struct {
+	uint32_t	xferaddr_lo;
+	uint32_t	xferaddr_hi;
+	mbox_t		mbox32;
+} __attribute__ ((packed)) mbox64_t;
+
+/*
+ * mailbox structure used for internal commands
+ */
+typedef struct {
+	u8	cmd;
+	u8	cmdid;
+	u8	opcode;
+	u8	subopcode;
+	u32	lba;
+	u32	xferaddr;
+	u8	logdrv;
+	u8	rsvd[3];
+	u8	numstatus;
+	u8	status;
+} __attribute__ ((packed)) int_mbox_t;
+
+/**
+ * mraid_passthru_t - passthru structure to issue commands to physical devices
+ * @timeout		: command timeout, 0=6sec, 1=60sec, 2=10min, 3=3hr
+ * @ars			: set if ARS required after check condition
+ * @islogical		: set if command meant for logical devices
+ * @logdrv		: logical drive number if command for LD
+ * @channel		: Channel on which physical device is located
+ * @target		: SCSI target of the device
+ * @queuetag		: unused
+ * @queueaction		: unused
+ * @cdb			: SCSI CDB
+ * @cdblen		: length of the CDB
+ * @reqsenselen		: amount of request sense data to be returned
+ * @reqsensearea	: Sense information buffer
+ * @numsge		: number of scatter-gather elements in the sg list
+ * @scsistatus		: SCSI status of the command completed.
+ * @dataxferaddr	: DMA data transfer address
+ * @dataxferlen		: amount of the data to be transferred.
+ */
+typedef struct {
+	uint8_t		timeout		:3;
+	uint8_t		ars		:1;
+	uint8_t		reserved	:3;
+	uint8_t		islogical	:1;
+	uint8_t		logdrv;
+	uint8_t		channel;
+	uint8_t		target;
+	uint8_t		queuetag;
+	uint8_t		queueaction;
+	uint8_t		cdb[10];
+	uint8_t		cdblen;
+	uint8_t		reqsenselen;
+	uint8_t		reqsensearea[MAX_REQ_SENSE_LEN];
+	uint8_t		numsge;
+	uint8_t		scsistatus;
+	uint32_t	dataxferaddr;
+	uint32_t	dataxferlen;
+} __attribute__ ((packed)) mraid_passthru_t;
+
+typedef struct {
+
+	uint32_t		dataxferaddr_lo;
+	uint32_t		dataxferaddr_hi;
+	mraid_passthru_t	pthru32;
+
+} __attribute__ ((packed)) mega_passthru64_t;
+
+/**
+ * mraid_epassthru_t - passthru structure to issue commands to physical devices
+ * @timeout		: command timeout, 0=6sec, 1=60sec, 2=10min, 3=3hr
+ * @ars			: set if ARS required after check condition
+ * @rsvd1		: reserved field
+ * @cd_rom		: (?)
+ * @rsvd2		: reserved field
+ * @islogical		: set if command meant for logical devices
+ * @logdrv		: logical drive number if command for LD
+ * @channel		: Channel on which physical device is located
+ * @target		: SCSI target of the device
+ * @queuetag		: unused
+ * @queueaction		: unused
+ * @cdblen		: length of the CDB
+ * @rsvd3		: reserved field
+ * @cdb			: SCSI CDB
+ * @numsge		: number of scatter-gather elements in the sg list
+ * @status		: SCSI status of the command completed.
+ * @reqsenselen		: amount of request sense data to be returned
+ * @reqsensearea	: Sense information buffer
+ * @rsvd4		: reserved field
+ * @dataxferaddr	: DMA data transfer address
+ * @dataxferlen		: amount of the data to be transferred.
+ */
+typedef struct {
+	uint8_t		timeout		:3;
+	uint8_t		ars		:1;
+	uint8_t		rsvd1		:1;
+	uint8_t		cd_rom		:1;
+	uint8_t		rsvd2		:1;
+	uint8_t		islogical	:1;
+	uint8_t		logdrv;
+	uint8_t		channel;
+	uint8_t		target;
+	uint8_t		queuetag;
+	uint8_t		queueaction;
+	uint8_t		cdblen;
+	uint8_t		rsvd3;
+	uint8_t		cdb[16];
+	uint8_t		numsge;
+	uint8_t		status;
+	uint8_t		reqsenselen;
+	uint8_t		reqsensearea[MAX_REQ_SENSE_LEN];
+	uint8_t		rsvd4;
+	uint32_t	dataxferaddr;
+	uint32_t	dataxferlen;
+} __attribute__ ((packed)) mraid_epassthru_t;
+
+
+/**
+ * mraid_pinfo_t - product info, static information about the controller
+ * @data_size		: current size in bytes (not including resvd)
+ * @config_signature	: Current value is 0x00282008
+ * @fw_version		: Firmware version
+ * @bios_version	: version of the BIOS
+ * @product_name	: Name given to the controller
+ * @max_commands	: Maximum concurrent commands supported
+ * @nchannels		: Number of SCSI Channels detected
+ * @fc_loop_present	: Number of Fibre Loops detected
+ * @mem_type		: EDO, FPM, SDRAM etc
+ * @signature		:
+ * @dram_size		: In terms of MB
+ * @subsysid		: device PCI subsystem ID
+ * @subsysvid		: device PCI subsystem vendor ID
+ * @notify_counters	:
+ * @pad1k		: 135 + 889 resvd = 1024 total size
+ *
+ * This structures holds the information about the controller which is not
+ * expected to change dynamically.
+ *
+ * The current value of config signature is 0x00282008:
+ * 0x28 = MAX_LOGICAL_DRIVES,
+ * 0x20 = Number of stripes and
+ * 0x08 = Number of spans
+ */
+typedef struct {
+	uint32_t	data_size;
+	uint32_t	config_signature;
+	uint8_t		fw_version[16];
+	uint8_t		bios_version[16];
+	uint8_t		product_name[80];
+	uint8_t		max_commands;
+	uint8_t		nchannels;
+	uint8_t		fc_loop_present;
+	uint8_t		mem_type;
+	uint32_t	signature;
+	uint16_t	dram_size;
+	uint16_t	subsysid;
+	uint16_t	subsysvid;
+	uint8_t		notify_counters;
+	uint8_t		pad1k[889];
+} __attribute__ ((packed)) mraid_pinfo_t;
+
+
+/**
+ * mraid_notify_t - the notification structure
+ * @global_counter		: Any change increments this counter
+ * @param_counter		: Indicates any params changed
+ * @param_id			: Param modified - defined below
+ * @param_val			: New val of last param modified
+ * @write_config_counter	: write config occurred
+ * @write_config_rsvd		:
+ * @ldrv_op_counter		: Indicates ldrv op started/completed
+ * @ldrv_opid			: ldrv num
+ * @ldrv_opcmd			: ldrv operation - defined below
+ * @ldrv_opstatus		: status of the operation
+ * @ldrv_state_counter		: Indicates change of ldrv state
+ * @ldrv_state_id		: ldrv num
+ * @ldrv_state_new		: New state
+ * @ldrv_state_old		: old state
+ * @pdrv_state_counter		: Indicates change of ldrv state
+ * @pdrv_state_id		: pdrv id
+ * @pdrv_state_new		: New state
+ * @pdrv_state_old		: old state
+ * @pdrv_fmt_counter		: Indicates pdrv format started/over
+ * @pdrv_fmt_id			: pdrv id
+ * @pdrv_fmt_val		: format started/over
+ * @pdrv_fmt_rsvd		:
+ * @targ_xfer_counter		: Indicates SCSI-2 Xfer rate change
+ * @targ_xfer_id		: pdrv Id
+ * @targ_xfer_val		: new Xfer params of last pdrv
+ * @targ_xfer_rsvd		:
+ * @fcloop_id_chg_counter	: Indicates loopid changed
+ * @fcloopid_pdrvid		: pdrv id
+ * @fcloop_id0			: loopid on fc loop 0
+ * @fcloop_id1			: loopid on fc loop 1
+ * @fcloop_state_counter	: Indicates loop state changed
+ * @fcloop_state0		: state of fc loop 0
+ * @fcloop_state1		: state of fc loop 1
+ * @fcloop_state_rsvd		:
+ */
+typedef struct {
+	uint32_t	global_counter;
+	uint8_t		param_counter;
+	uint8_t		param_id;
+	uint16_t	param_val;
+	uint8_t		write_config_counter;
+	uint8_t		write_config_rsvd[3];
+	uint8_t		ldrv_op_counter;
+	uint8_t		ldrv_opid;
+	uint8_t		ldrv_opcmd;
+	uint8_t		ldrv_opstatus;
+	uint8_t		ldrv_state_counter;
+	uint8_t		ldrv_state_id;
+	uint8_t		ldrv_state_new;
+	uint8_t		ldrv_state_old;
+	uint8_t		pdrv_state_counter;
+	uint8_t		pdrv_state_id;
+	uint8_t		pdrv_state_new;
+	uint8_t		pdrv_state_old;
+	uint8_t		pdrv_fmt_counter;
+	uint8_t		pdrv_fmt_id;
+	uint8_t		pdrv_fmt_val;
+	uint8_t		pdrv_fmt_rsvd;
+	uint8_t		targ_xfer_counter;
+	uint8_t		targ_xfer_id;
+	uint8_t		targ_xfer_val;
+	uint8_t		targ_xfer_rsvd;
+	uint8_t		fcloop_id_chg_counter;
+	uint8_t		fcloopid_pdrvid;
+	uint8_t		fcloop_id0;
+	uint8_t		fcloop_id1;
+	uint8_t		fcloop_state_counter;
+	uint8_t		fcloop_state0;
+	uint8_t		fcloop_state1;
+	uint8_t		fcloop_state_rsvd;
+} __attribute__ ((packed)) mraid_notify_t;
+
+
+/**
+ * mraid_inquiry3_t - enquiry for device information
+ *
+ * @data_size		: current size in bytes (not including resvd)
+ * @notify		:
+ * @notify_rsvd		:
+ * @rebuild_rate	: rebuild rate (0% - 100%)
+ * @cache_flush_int	: cache flush interval in seconds
+ * @sense_alert		:
+ * @drive_insert_count	: drive insertion count
+ * @battery_status	:
+ * @num_ldrv		: no. of Log Drives configured
+ * @recon_state		: state of reconstruct
+ * @ldrv_op_status	: logdrv Status
+ * @ldrv_size		: size of each log drv
+ * @ldrv_prop		:
+ * @ldrv_state		: state of log drives
+ * @pdrv_state		: state of phys drvs.
+ * @pdrv_format		:
+ * @targ_xfer		: phys device transfer rate
+ * @pad1k		: 761 + 263reserved = 1024 bytes total size
+ */
+#define MAX_NOTIFY_SIZE		0x80
+#define CUR_NOTIFY_SIZE		sizeof(mraid_notify_t)
+
+typedef struct {
+	uint32_t	data_size;
+
+	mraid_notify_t	notify;
+
+	uint8_t		notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
+
+	uint8_t		rebuild_rate;
+	uint8_t		cache_flush_int;
+	uint8_t		sense_alert;
+	uint8_t		drive_insert_count;
+
+	uint8_t		battery_status;
+	uint8_t		num_ldrv;
+	uint8_t		recon_state[MAX_LOGICAL_DRIVES_40LD / 8];
+	uint16_t	ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8];
+
+	uint32_t	ldrv_size[MAX_LOGICAL_DRIVES_40LD];
+	uint8_t		ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
+	uint8_t		ldrv_state[MAX_LOGICAL_DRIVES_40LD];
+	uint8_t		pdrv_state[FC_MAX_PHYSICAL_DEVICES];
+	uint16_t	pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];
+
+	uint8_t		targ_xfer[80];
+	uint8_t		pad1k[263];
+} __attribute__ ((packed)) mraid_inquiry3_t;
+
+
+/**
+ * mraid_adapinfo_t - information about the adapter
+ * @max_commands		: max concurrent commands supported
+ * @rebuild_rate		: rebuild rate - 0% thru 100%
+ * @max_targ_per_chan		: max targ per channel
+ * @nchannels			: number of channels on HBA
+ * @fw_version			: firmware version
+ * @age_of_flash		: number of times FW has been flashed
+ * @chip_set_value		: contents of 0xC0000832
+ * @dram_size			: in MB
+ * @cache_flush_interval	: in seconds
+ * @bios_version		:
+ * @board_type			:
+ * @sense_alert			:
+ * @write_config_count		: increase with every configuration change
+ * @drive_inserted_count	: increase with every drive inserted
+ * @inserted_drive		: channel:Id of inserted drive
+ * @battery_status		: bit 0: battery module missing
+ *				bit 1: VBAD
+ *				bit 2: temprature high
+ *				bit 3: battery pack missing
+ *				bit 4,5:
+ *					00 - charge complete
+ *					01 - fast charge in progress
+ *					10 - fast charge fail
+ *					11 - undefined
+ *				bit 6: counter > 1000
+ *				bit 7: Undefined
+ * @dec_fault_bus_info		:
+ */
+typedef struct {
+	uint8_t		max_commands;
+	uint8_t		rebuild_rate;
+	uint8_t		max_targ_per_chan;
+	uint8_t		nchannels;
+	uint8_t		fw_version[4];
+	uint16_t	age_of_flash;
+	uint8_t		chip_set_value;
+	uint8_t		dram_size;
+	uint8_t		cache_flush_interval;
+	uint8_t		bios_version[4];
+	uint8_t		board_type;
+	uint8_t		sense_alert;
+	uint8_t		write_config_count;
+	uint8_t		battery_status;
+	uint8_t		dec_fault_bus_info;
+} __attribute__ ((packed)) mraid_adapinfo_t;
+
+
+/**
+ * mraid_ldrv_info_t - information about the logical drives
+ * @nldrv	: Number of logical drives configured
+ * @rsvd	:
+ * @size	: size of each logical drive
+ * @prop	:
+ * @state	: state of each logical drive
+ */
+typedef struct {
+	uint8_t		nldrv;
+	uint8_t		rsvd[3];
+	uint32_t	size[MAX_LOGICAL_DRIVES_8LD];
+	uint8_t		prop[MAX_LOGICAL_DRIVES_8LD];
+	uint8_t		state[MAX_LOGICAL_DRIVES_8LD];
+} __attribute__ ((packed)) mraid_ldrv_info_t;
+
+
+/**
+ * mraid_pdrv_info_t - information about the physical drives
+ * @pdrv_state	: state of each physical drive
+ */
+typedef struct {
+	uint8_t		pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];
+	uint8_t		rsvd;
+} __attribute__ ((packed)) mraid_pdrv_info_t;
+
+
+/**
+ * mraid_inquiry_t - RAID inquiry, mailbox command 0x05
+ * @mraid_adapinfo_t	: adapter information
+ * @mraid_ldrv_info_t	: logical drives information
+ * @mraid_pdrv_info_t	: physical drives information
+ */
+typedef struct {
+	mraid_adapinfo_t	adapter_info;
+	mraid_ldrv_info_t	logdrv_info;
+	mraid_pdrv_info_t	pdrv_info;
+} __attribute__ ((packed)) mraid_inquiry_t;
+
+
+/**
+ * mraid_extinq_t - RAID extended inquiry, mailbox command 0x04
+ *
+ * @raid_inq		: raid inquiry
+ * @phys_drv_format	:
+ * @stack_attn		:
+ * @modem_status	:
+ * @rsvd		:
+ */
+typedef struct {
+	mraid_inquiry_t	raid_inq;
+	uint16_t	phys_drv_format[MAX_MBOX_CHANNELS];
+	uint8_t		stack_attn;
+	uint8_t		modem_status;
+	uint8_t		rsvd[2];
+} __attribute__ ((packed)) mraid_extinq_t;
+
+
+/**
+ * adap_device_t - device information
+ * @channel	: channel fpor the device
+ * @target	: target ID of the device
+ */
+typedef struct {
+	uint8_t		channel;
+	uint8_t		target;
+}__attribute__ ((packed)) adap_device_t;
+
+
+/**
+ * adap_span_40ld_t - 40LD span
+ * @start_blk	: starting block
+ * @num_blks	: number of blocks
+ */
+typedef struct {
+	uint32_t	start_blk;
+	uint32_t	num_blks;
+	adap_device_t	device[MAX_ROW_SIZE_40LD];
+}__attribute__ ((packed)) adap_span_40ld_t;
+
+
+/**
+ * adap_span_8ld_t - 8LD span
+ * @start_blk	: starting block
+ * @num_blks	: number of blocks
+ */
+typedef struct {
+	uint32_t	start_blk;
+	uint32_t	num_blks;
+	adap_device_t	device[MAX_ROW_SIZE_8LD];
+}__attribute__ ((packed)) adap_span_8ld_t;
+
+
+/**
+ * logdrv_param_t - logical drives parameters
+ *
+ * @span_depth	: total number of spans
+ * @level	: RAID level
+ * @read_ahead	: read ahead, no read ahead, adaptive read ahead
+ * @stripe_sz	: encoded stripe size
+ * @status	: status of the logical drive
+ * @write_mode	: write mode, write_through/write_back
+ * @direct_io	: direct io or through cache
+ * @row_size	: number of stripes in a row
+ */
+typedef struct {
+	uint8_t		span_depth;
+	uint8_t		level;
+	uint8_t		read_ahead;
+	uint8_t		stripe_sz;
+	uint8_t		status;
+	uint8_t		write_mode;
+	uint8_t		direct_io;
+	uint8_t		row_size;
+} __attribute__ ((packed)) logdrv_param_t;
+
+
+/**
+ * logdrv_40ld_t - logical drive definition for 40LD controllers
+ * @lparam	: logical drives parameters
+ * @span	: span
+ */
+typedef struct {
+	logdrv_param_t		lparam;
+	adap_span_40ld_t	span[SPAN_DEPTH_8_SPANS];
+}__attribute__ ((packed)) logdrv_40ld_t;
+
+
+/**
+ * logdrv_8ld_span8_t - logical drive definition for 8LD controllers
+ * @lparam	: logical drives parameters
+ * @span	: span
+ *
+ * 8-LD logical drive with upto 8 spans
+ */
+typedef struct {
+	logdrv_param_t	lparam;
+	adap_span_8ld_t	span[SPAN_DEPTH_8_SPANS];
+}__attribute__ ((packed)) logdrv_8ld_span8_t;
+
+
+/**
+ * logdrv_8ld_span4_t - logical drive definition for 8LD controllers
+ * @lparam	: logical drives parameters
+ * @span	: span
+ *
+ * 8-LD logical drive with upto 4 spans
+ */
+typedef struct {
+	logdrv_param_t	lparam;
+	adap_span_8ld_t	span[SPAN_DEPTH_4_SPANS];
+}__attribute__ ((packed)) logdrv_8ld_span4_t;
+
+
+/**
+ * phys_drive_t - physical device information
+ * @type	: Type of the device
+ * @cur_status	: current status of the device
+ * @tag_depth	: Level of tagging
+ * @sync_neg	: sync negotiation - ENABLE or DISBALE
+ * @size	: configurable size in terms of 512 byte
+ */
+typedef struct {
+	uint8_t		type;
+	uint8_t		cur_status;
+	uint8_t		tag_depth;
+	uint8_t		sync_neg;
+	uint32_t	size;
+}__attribute__ ((packed)) phys_drive_t;
+
+
+/**
+ * disk_array_40ld_t - disk array for 40LD controllers
+ * @numldrv	: number of logical drives
+ * @resvd	:
+ * @ldrv	: logical drives information
+ * @pdrv	: physical drives information
+ */
+typedef struct {
+	uint8_t		numldrv;
+	uint8_t		resvd[3];
+	logdrv_40ld_t	ldrv[MAX_LOGICAL_DRIVES_40LD];
+	phys_drive_t	pdrv[MBOX_MAX_PHYSICAL_DRIVES];
+}__attribute__ ((packed)) disk_array_40ld_t;
+
+
+/**
+ * disk_array_8ld_span8_t - disk array for 8LD controllers
+ * @numldrv	: number of logical drives
+ * @resvd	:
+ * @ldrv	: logical drives information
+ * @pdrv	: physical drives information
+ *
+ * Disk array for 8LD logical drives with upto 8 spans
+ */
+typedef struct {
+	uint8_t			numldrv;
+	uint8_t			resvd[3];
+	logdrv_8ld_span8_t	ldrv[MAX_LOGICAL_DRIVES_8LD];
+	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];
+}__attribute__ ((packed)) disk_array_8ld_span8_t;
+
+
+/**
+ * disk_array_8ld_span4_t - disk array for 8LD controllers
+ * @numldrv	: number of logical drives
+ * @resvd	:
+ * @ldrv	: logical drives information
+ * @pdrv	: physical drives information
+ *
+ * Disk array for 8LD logical drives with upto 4 spans
+ */
+typedef struct {
+	uint8_t			numldrv;
+	uint8_t			resvd[3];
+	logdrv_8ld_span4_t	ldrv[MAX_LOGICAL_DRIVES_8LD];
+	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];
+}__attribute__ ((packed)) disk_array_8ld_span4_t;
+
+
+/**
+ * private_bios_data - bios private data for boot devices
+ * @geometry	: bits 0-3 - BIOS geometry, 0x0001 - 1GB, 0x0010 - 2GB,
+ *		0x1000 - 8GB, Others values are invalid
+ * @unused	: bits 4-7 are unused
+ * @boot_drv	: logical drive set as boot drive, 0..7 - for 8LD cards,
+ * 		0..39 - for 40LD cards
+ * @cksum	: 0-(sum of first 13 bytes of this structure)
+ */
+struct private_bios_data {
+	uint8_t		geometry	:4;
+	uint8_t		unused		:4;
+	uint8_t		boot_drv;
+	uint8_t		rsvd[12];
+	uint16_t	cksum;
+} __attribute__ ((packed));
+
+
+/**
+ * mbox_sgl64 - 64-bit scatter list for mailbox based controllers
+ * @address	: address of the buffer
+ * @length	: data transfer length
+ */
+typedef struct {
+	uint64_t	address;
+	uint32_t	length;
+} __attribute__ ((packed)) mbox_sgl64;
+
+/**
+ * mbox_sgl32 - 32-bit scatter list for mailbox based controllers
+ * @address	: address of the buffer
+ * @length	: data transfer length
+ */
+typedef struct {
+	uint32_t	address;
+	uint32_t	length;
+} __attribute__ ((packed)) mbox_sgl32;
+
+
+#undef	wait_event
+#define	wait_event		mraid_mm_diskdump_wait_event
+#undef  wake_up
+#define wake_up			mraid_mm_diskdump_wake_up
+extern void mraid_mm_diskdump_schedule(void);
+extern void mraid_mm_diskdump_wake_up(wait_queue_head_t *q);
+
+
+#define __mraid_mm_diskdump_wait_event(wq, condition)			\
+do {									\
+	wait_queue_t __wait;						\
+	init_waitqueue_entry(&__wait, current);				\
+									\
+	add_wait_queue(&wq, &__wait);					\
+	for (;;) {							\
+		set_current_state(TASK_UNINTERRUPTIBLE);		\
+		if (condition)						\
+			break;						\
+		mraid_mm_diskdump_schedule();				\
+	}								\
+	current->state = TASK_RUNNING;					\
+	remove_wait_queue(&wq, &__wait);				\
+} while (0)
+
+#define mraid_mm_diskdump_wait_event(wq, condition)			\
+do {									\
+	if (condition)							\
+		break;							\
+	__mraid_mm_diskdump_wait_event(wq, condition);			\
+} while (0)
+
+
+#endif		// _MRAID_MBOX_DEFS_H_
+
+/* vim: set ts=8 sw=8 tw=78: */

kernel-2.6.9-55.0.2.EL/megaraid-2.20.4.6-rh2/mega_common.h

@@ -0,0 +1,290 @@
+/*
+ *
+ *			Linux MegaRAID device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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.
+ *
+ * FILE		: mega_common.h
+ *
+ * Libaray of common routine used by all low-level megaraid drivers
+ */
+
+#ifndef _MEGA_COMMON_H_
+#define _MEGA_COMMON_H_
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/blkdev.h>
+#include <linux/list.h>
+#include <linux/version.h>
+#include <linux/moduleparam.h>
+#include <linux/dma-mapping.h>
+#include <linux/diskdump.h>
+#include <asm/semaphore.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+
+
+#define LSI_MAX_CHANNELS		16
+#define LSI_MAX_LOGICAL_DRIVES_64LD	(64+1)
+
+#define HBA_SIGNATURE_64BIT		0x0299
+#define PCI_CONF_AMISIG64		0xa4
+
+/**
+ * scb_t - scsi command control block
+ * @param ccb		: command control block for individual driver
+ * @param list		: list of control blocks
+ * @param gp		: general purpose field for LLDs
+ * @param sno		: all SCBs have a serial number
+ * @param scp		: associated scsi command
+ * @param state		: current state of scb
+ * @param dma_dir	: direction of data transfer
+ * @param dma_type	: transfer with sg list, buffer, or no data transfer
+ * @param dev_channel	: actual channel on the device
+ * @param dev_target	: actual target on the device
+ * @param status	: completion status
+ *
+ * This is our central data structure to issue commands the each driver.
+ * Driver specific data structures are maintained in the ccb field.
+ * scb provides a field 'gp', which can be used by LLD for its own purposes
+ *
+ * dev_channel and dev_target must be initialized with the actual channel and
+ * target on the controller.
+ */
+typedef struct {
+	caddr_t			ccb;
+	struct list_head	list;
+	unsigned long		gp;
+	unsigned int		sno;
+	struct scsi_cmnd	*scp;
+	uint32_t		state;
+	uint32_t		dma_direction;
+	uint32_t		dma_type;
+	uint16_t		dev_channel;
+	uint16_t		dev_target;
+	uint32_t		status;
+} scb_t;
+
+/*
+ * SCB states as it transitions from one state to another
+ */
+#define SCB_FREE	0x0000	/* on the free list */
+#define SCB_ACTIVE	0x0001	/* off the free list */
+#define SCB_PENDQ	0x0002	/* on the pending queue */
+#define SCB_ISSUED	0x0004	/* issued - owner f/w */
+#define SCB_ABORT	0x0008	/* Got an abort for this one */
+#define SCB_RESET	0x0010	/* Got a reset for this one */
+
+/*
+ * DMA types for scb
+ */
+#define MRAID_DMA_NONE	0x0000	/* no data transfer for this command */
+#define MRAID_DMA_WSG	0x0001	/* data transfer using a sg list */
+#define MRAID_DMA_WBUF	0x0002	/* data transfer using a contiguous buffer */
+
+
+/**
+ * struct adapter_t - driver's initialization structure
+ * @param dpc_h			: tasklet handle
+ * @param pdev			: pci configuration pointer for kernel
+ * @param host			: pointer to host structure of mid-layer
+ * @param host_lock		: pointer to appropriate lock
+ * @param lock			: synchronization lock for mid-layer and driver
+ * @param quiescent		: driver is quiescent for now.
+ * @param outstanding_cmds	: number of commands pending in the driver
+ * @param kscb_list		: pointer to the bulk of SCBs pointers for IO
+ * @param kscb_pool		: pool of free scbs for IO
+ * @param kscb_pool_lock	: lock for pool of free scbs
+ * @param pend_list		: pending commands list
+ * @param pend_list_lock	: exlusion lock for pending commands list
+ * @param completed_list	: list of completed commands
+ * @param completed_list_lock	: exclusion lock for list of completed commands
+ * @param sglen			: max sg elements supported
+ * @param device_ids		: to convert kernel device addr to our devices.
+ * @param raid_device		: raid adapter specific pointer
+ * @param max_channel		: maximum channel number supported - inclusive
+ * @param max_target		: max target supported - inclusive
+ * @param max_lun		: max lun supported - inclusive
+ * @param unique_id		: unique identifier for each adapter
+ * @param irq			: IRQ for this adapter
+ * @param ito			: internal timeout value, (-1) means no timeout
+ * @param ibuf			: buffer to issue internal commands
+ * @param ibuf_dma_h		: dma handle for the above buffer
+ * @param uscb_list		: SCB pointers for user cmds, common mgmt module
+ * @param uscb_pool		: pool of SCBs for user commands
+ * @param uscb_pool_lock	: exclusion lock for these SCBs
+ * @param max_cmds		: max outstanding commands
+ * @param fw_version		: firmware version
+ * @param bios_version		: bios version
+ * @param max_cdb_sz		: biggest CDB size supported.
+ * @param ha			: is high availability present - clustering
+ * @param init_id		: initiator ID, the default value should be 7
+ * @param max_sectors		: max sectors per request
+ * @param cmd_per_lun		: max outstanding commands per LUN
+ * @param being_detached	: set when unloading, no more mgmt calls
+ *
+ *
+ * mraid_setup_device_map() can be called anytime after the device map is
+ * available and MRAID_GET_DEVICE_MAP() can be called whenever the mapping is
+ * required, usually from LLD's queue entry point. The formar API sets up the
+ * MRAID_IS_LOGICAL(adapter_t *, struct scsi_cmnd *) to find out if the
+ * device in question is a logical drive.
+ *
+ * quiescent flag should be set by the driver if it is not accepting more
+ * commands
+ *
+ * NOTE: The fields of this structures are placed to minimize cache misses
+ */
+
+// amount of space required to store the bios and firmware version strings
+#define VERSION_SIZE	16
+
+typedef struct {
+	struct tasklet_struct	dpc_h;
+	struct pci_dev		*pdev;
+	struct Scsi_Host	*host;
+	spinlock_t		*host_lock;
+	spinlock_t		lock;
+	uint8_t			quiescent;
+	int			outstanding_cmds;
+	scb_t			*kscb_list;
+	struct list_head	kscb_pool;
+	spinlock_t		kscb_pool_lock;
+	struct list_head	pend_list;
+	spinlock_t		pend_list_lock;
+	struct list_head	completed_list;
+	spinlock_t		completed_list_lock;
+	uint16_t		sglen;
+	int			device_ids[LSI_MAX_CHANNELS]
+					[LSI_MAX_LOGICAL_DRIVES_64LD];
+	caddr_t			raid_device;
+	uint8_t			max_channel;
+	uint16_t		max_target;
+	uint8_t			max_lun;
+
+	uint32_t		unique_id;
+	uint8_t			irq;
+	uint8_t			ito;
+	caddr_t			ibuf;
+	dma_addr_t		ibuf_dma_h;
+	scb_t			*uscb_list;
+	struct list_head	uscb_pool;
+	spinlock_t		uscb_pool_lock;
+	int			max_cmds;
+	uint8_t			fw_version[VERSION_SIZE];
+	uint8_t			bios_version[VERSION_SIZE];
+	uint8_t			max_cdb_sz;
+	uint8_t			ha;
+	uint16_t		init_id;
+	uint16_t		max_sectors;
+	uint16_t		cmd_per_lun;
+	atomic_t		being_detached;
+} adapter_t;
+
+#define SCSI_FREE_LIST_LOCK(adapter)	(&adapter->kscb_pool_lock)
+#define USER_FREE_LIST_LOCK(adapter)	(&adapter->uscb_pool_lock)
+#define PENDING_LIST_LOCK(adapter)	(&adapter->pend_list_lock)
+#define COMPLETED_LIST_LOCK(adapter)	(&adapter->completed_list_lock)
+
+
+// conversion from scsi command
+#define SCP2HOST(scp)			(scp)->device->host	// to host
+#define SCP2HOSTDATA(scp)		SCP2HOST(scp)->hostdata	// to soft state
+#define SCP2CHANNEL(scp)		(scp)->device->channel	// to channel
+#define SCP2TARGET(scp)			(scp)->device->id	// to target
+#define SCP2LUN(scp)			(scp)->device->lun	// to LUN
+
+// generic macro to convert scsi command and host to controller's soft state
+#define SCSIHOST2ADAP(host)	(((caddr_t *)(host->hostdata))[0])
+#define SCP2ADAPTER(scp)	(adapter_t *)SCSIHOST2ADAP(SCP2HOST(scp))
+
+
+/**
+ * MRAID_GET_DEVICE_MAP - device ids
+ * @param adp		- Adapter's soft state
+ * @param scp		- mid-layer scsi command pointer
+ * @param p_chan	- physical channel on the controller
+ * @param target	- target id of the device or logical drive number
+ * @param islogical	- set if the command is for the logical drive
+ *
+ * Macro to retrieve information about device class, logical or physical and
+ * the corresponding physical channel and target or logical drive number
+ **/
+#define MRAID_IS_LOGICAL(adp, scp)	\
+	(SCP2CHANNEL(scp) == (adp)->max_channel) ? 1 : 0
+
+#define MRAID_IS_LOGICAL_SDEV(adp, sdev)	\
+	(sdev->channel == (adp)->max_channel) ? 1 : 0
+
+#define MRAID_GET_DEVICE_MAP(adp, scp, p_chan, target, islogical)	\
+	/*								\
+	 * Is the request coming for the virtual channel		\
+	 */								\
+	islogical = MRAID_IS_LOGICAL(adp, scp);				\
+									\
+	/*								\
+	 * Get an index into our table of drive ids mapping		\
+	 */								\
+	if (islogical) {						\
+		p_chan = 0xFF;						\
+		target =						\
+		(adp)->device_ids[(adp)->max_channel][SCP2TARGET(scp)];	\
+	}								\
+	else {								\
+		p_chan = ((adp)->device_ids[SCP2CHANNEL(scp)]		\
+					[SCP2TARGET(scp)] >> 8) & 0xFF;	\
+		target = ((adp)->device_ids[SCP2CHANNEL(scp)]		\
+					[SCP2TARGET(scp)] & 0xFF);	\
+	}
+
+/*
+ * ### Helper routines ###
+ */
+#define LSI_DBGLVL mraid_debug_level	// each LLD must define a global
+ 					// mraid_debug_level
+
+#ifdef DEBUG
+#if defined (_ASSERT_PANIC)
+#define ASSERT_ACTION	panic
+#else
+#define ASSERT_ACTION	printk
+#endif
+
+#define ASSERT(expression)						\
+	if (!(expression)) {						\
+	ASSERT_ACTION("assertion failed:(%s), file: %s, line: %d:%s\n",	\
+			#expression, __FILE__, __LINE__, __FUNCTION__);	\
+	}
+#else
+#define ASSERT(expression)
+#endif
+
+/*
+ * struct mraid_pci_blk - structure holds DMA memory block info
+ * @param vaddr		: virtual address to a memory block
+ * @param dma_addr	: DMA handle to a memory block
+ *
+ * This structure is filled up for the caller. It is the responsibilty of the
+ * caller to allocate this array big enough to store addresses for all
+ * requested elements
+ */
+struct mraid_pci_blk {
+	caddr_t		vaddr;
+	dma_addr_t	dma_addr;
+};
+
+#endif // _MEGA_COMMON_H_
+
+// vim: set ts=8 sw=8 tw=78:

kernel-2.6.9-55.0.2.EL/megaraid-2.20.4.6-rh2/megaraid_ioctl.h

@@ -0,0 +1,300 @@
+/*
+ *
+ *			Linux MegaRAID device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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.
+ *
+ * FILE		: megaraid_ioctl.h
+ *
+ * Definitions to interface with user level applications
+ */
+
+#ifndef _MEGARAID_IOCTL_H_
+#define _MEGARAID_IOCTL_H_
+
+#include <linux/types.h>
+#include <asm/semaphore.h>
+
+#include "mbox_defs.h"
+
+/**
+ * con_log() - console log routine
+ * @param level		: indicates the severity of the message.
+ * @fparam mt		: format string
+ *
+ * con_log displays the error messages on the console based on the current
+ * debug level. Also it attaches the appropriate kernel severity level with
+ * the message.
+ *
+ *
+ * consolge messages debug levels
+ */
+#define	CL_ANN		0	/* print unconditionally, announcements */
+#define CL_DLEVEL1	1	/* debug level 1, informative */
+#define CL_DLEVEL2	2	/* debug level 2, verbose */
+#define CL_DLEVEL3	3	/* debug level 3, very verbose */
+
+#define	con_log(level, fmt) if (LSI_DBGLVL >= level) printk fmt;
+
+/*
+ * Definitions & Declarations needed to use common management module
+ */
+
+#define MEGAIOC_MAGIC		'm'
+#define MEGAIOCCMD		_IOWR(MEGAIOC_MAGIC, 0, mimd_t)
+
+#define MEGAIOC_QNADAP		'm'	/* Query # of adapters		*/
+#define MEGAIOC_QDRVRVER	'e'	/* Query driver version		*/
+#define MEGAIOC_QADAPINFO   	'g'	/* Query adapter information	*/
+
+#define USCSICMD		0x80
+#define UIOC_RD			0x00001
+#define UIOC_WR			0x00002
+
+#define MBOX_CMD		0x00000
+#define GET_DRIVER_VER		0x10000
+#define GET_N_ADAP		0x20000
+#define GET_ADAP_INFO		0x30000
+#define GET_CAP			0x40000
+#define GET_STATS		0x50000
+#define GET_IOCTL_VERSION	0x01
+
+#define EXT_IOCTL_SIGN_SZ	16
+#define EXT_IOCTL_SIGN		"$$_EXTD_IOCTL_$$"
+
+#define	MBOX_LEGACY		0x00		/* ioctl has legacy mbox*/
+#define MBOX_HPE		0x01		/* ioctl has hpe mbox	*/
+
+#define	APPTYPE_MIMD		0x00		/* old existing apps	*/
+#define APPTYPE_UIOC		0x01		/* new apps using uioc	*/
+
+#define IOCTL_ISSUE		0x00000001	/* Issue ioctl		*/
+#define IOCTL_ABORT		0x00000002	/* Abort previous ioctl	*/
+
+#define DRVRTYPE_MBOX		0x00000001	/* regular mbox driver	*/
+#define DRVRTYPE_HPE		0x00000002	/* new hpe driver	*/
+
+#define MKADAP(adapno)	(MEGAIOC_MAGIC << 8 | (adapno) )
+#define GETADAP(mkadap)	((mkadap) ^ MEGAIOC_MAGIC << 8)
+
+#define MAX_DMA_POOLS		5		/* 4k, 8k, 16k, 32k, 64k*/
+
+
+/**
+ * struct uioc_t - the common ioctl packet structure
+ *
+ * @signature	: Must be "$$_EXTD_IOCTL_$$"
+ * @mb_type	: Type of the mail box (MB_LEGACY or MB_HPE)
+ * @app_type	: Type of the issuing application (existing or new)
+ * @opcode	: Opcode of the command
+ * @adapno	: Adapter number
+ * @cmdbuf	: Pointer to buffer - can point to mbox or plain data buffer
+ * @xferlen	: xferlen for DCMD and non mailbox commands
+ * @data_dir	: Direction of the data transfer
+ * @status	: Status from the driver
+ * @reserved	: reserved bytes for future expansion
+ *
+ * @user_data	: user data transfer address is saved in this
+ * @user_data_len: length of the data buffer sent by user app
+ * @user_pthru	: user passthru address is saves in this (null if DCMD)
+ * @pthru32	: kernel address passthru (allocated per kioc)
+ * @pthru32_h	: physicall address of @pthru32
+ * @list	: for kioc free pool list maintenance
+ * @done	: call back routine for llds to call when kioc is completed
+ * @buf_vaddr	: dma pool buffer attached to kioc for data transfer
+ * @buf_paddr	: physical address of the dma pool buffer
+ * @pool_index	: index of the dma pool that @buf_vaddr is taken from
+ * @free_buf	: indicates if buffer needs to be freed after kioc completes
+ *
+ * Note		: All LSI drivers understand only this packet. Any other
+ *		: format sent by applications would be converted to this.
+ */
+typedef struct uioc {
+
+/* User Apps: */
+
+	uint8_t			signature[EXT_IOCTL_SIGN_SZ];
+	uint16_t		mb_type;
+	uint16_t		app_type;
+	uint32_t		opcode;
+	uint32_t		adapno;
+	uint64_t		cmdbuf;
+	uint32_t		xferlen;
+	uint32_t		data_dir;
+	int32_t			status;
+	uint8_t			reserved[128];
+
+/* Driver Data: */
+	void __user *		user_data;
+	uint32_t		user_data_len;
+
+	/* 64bit alignment */
+	uint32_t                pad_for_64bit_align;
+
+	mraid_passthru_t	__user *user_pthru;
+
+	mraid_passthru_t	*pthru32;
+	dma_addr_t		pthru32_h;
+
+	struct list_head	list;
+	void			(*done)(struct uioc*);
+
+	caddr_t			buf_vaddr;
+	dma_addr_t		buf_paddr;
+	int8_t			pool_index;
+	uint8_t			free_buf;
+
+	uint8_t			timedout;
+
+} __attribute__ ((aligned(1024),packed)) uioc_t;
+
+
+/**
+ * struct mraid_hba_info - information about the controller
+ *
+ * @param pci_vendor_id		: PCI vendor id
+ * @param pci_device_id		: PCI device id
+ * @param subsystem_vendor_id	: PCI subsystem vendor id
+ * @param subsystem_device_id	: PCI subsystem device id
+ * @param baseport		: base port of hba memory
+ * @param pci_bus		: PCI bus
+ * @param pci_dev_fn		: PCI device/function values
+ * @param irq			: interrupt vector for the device
+ *
+ * Extended information of 256 bytes about the controller. Align on the single
+ * byte boundary so that 32-bit applications can be run on 64-bit platform
+ * drivers withoug re-compilation.
+ * NOTE: reduce the number of reserved bytes whenever new field are added, so
+ * that total size of the structure remains 256 bytes.
+ */
+typedef struct mraid_hba_info {
+
+	uint16_t	pci_vendor_id;
+	uint16_t	pci_device_id;
+	uint16_t	subsys_vendor_id;
+	uint16_t	subsys_device_id;
+
+	uint64_t	baseport;
+	uint8_t		pci_bus;
+	uint8_t		pci_dev_fn;
+	uint8_t		pci_slot;
+	uint8_t		irq;
+
+	uint32_t	unique_id;
+	uint32_t	host_no;
+
+	uint8_t		num_ldrv;
+} __attribute__ ((aligned(256), packed)) mraid_hba_info_t;
+
+
+/**
+ * mcontroller	: adapter info structure for old mimd_t apps
+ *
+ * @base	: base address
+ * @irq		: irq number
+ * @numldrv	: number of logical drives
+ * @pcibus	: pci bus
+ * @pcidev	: pci device
+ * @pcifun	: pci function
+ * @pciid	: pci id
+ * @pcivendor	: vendor id
+ * @pcislot	: slot number
+ * @uid		: unique id
+ */
+typedef struct mcontroller {
+
+	uint64_t	base;
+	uint8_t		irq;
+	uint8_t		numldrv;
+	uint8_t		pcibus;
+	uint16_t	pcidev;
+	uint8_t		pcifun;
+	uint16_t	pciid;
+	uint16_t	pcivendor;
+	uint8_t		pcislot;
+	uint32_t	uid;
+
+} __attribute__ ((packed)) mcontroller_t;
+
+
+/**
+ * mm_dmapool_t	: Represents one dma pool with just one buffer
+ *
+ * @vaddr	: Virtual address
+ * @paddr	: DMA physicall address
+ * @bufsize	: In KB - 4 = 4k, 8 = 8k etc.
+ * @handle	: Handle to the dma pool
+ * @lock	: lock to synchronize access to the pool
+ * @in_use	: If pool already in use, attach new block
+ */
+typedef struct mm_dmapool {
+	caddr_t		vaddr;
+	dma_addr_t	paddr;
+	uint32_t	buf_size;
+	struct dma_pool	*handle;
+	spinlock_t	lock;
+	uint8_t		in_use;
+} mm_dmapool_t;
+
+
+/**
+ * mraid_mmadp_t: Structure that drivers pass during (un)registration
+ *
+ * @unique_id		: Any unique id (usually PCI bus+dev+fn)
+ * @drvr_type		: megaraid or hpe (DRVRTYPE_MBOX or DRVRTYPE_HPE)
+ * @drv_data		: Driver specific; not touched by the common module
+ * @timeout		: timeout for issued kiocs
+ * @max_kioc		: Maximum ioctl packets acceptable by the lld
+ * @pdev		: pci dev; used for allocating dma'ble memory
+ * @issue_uioc		: Driver supplied routine to issue uioc_t commands
+ *			: issue_uioc(drvr_data, kioc, ISSUE/ABORT, uioc_done)
+ * @quiescent		: flag to indicate if ioctl can be issued to this adp
+ * @list		: attach with the global list of adapters
+ * @kioc_list		: block of mem for @max_kioc number of kiocs
+ * @kioc_pool		: pool of free kiocs
+ * @kioc_pool_lock	: protection for free pool
+ * @kioc_semaphore	: so as not to exceed @max_kioc parallel ioctls
+ * @mbox_list		: block of mem for @max_kioc number of mboxes
+ * @pthru_dma_pool	: DMA pool to allocate passthru packets
+ * @dma_pool_list	: array of dma pools
+ */
+
+typedef struct mraid_mmadp {
+
+/* Filled by driver */
+
+	uint32_t		unique_id;
+	uint32_t		drvr_type;
+	unsigned long		drvr_data;
+	uint16_t		timeout;
+	uint8_t			max_kioc;
+
+	struct pci_dev		*pdev;
+
+	int(*issue_uioc)(unsigned long, uioc_t *, uint32_t);
+
+/* Maintained by common module */
+	uint32_t		quiescent;
+
+	struct list_head	list;
+	uioc_t			*kioc_list;
+	struct list_head	kioc_pool;
+	spinlock_t		kioc_pool_lock;
+	struct semaphore	kioc_semaphore;
+
+	mbox64_t		*mbox_list;
+	struct dma_pool		*pthru_dma_pool;
+	mm_dmapool_t		dma_pool_list[MAX_DMA_POOLS];
+
+} mraid_mmadp_t;
+
+int mraid_mm_register_adp(mraid_mmadp_t *);
+int mraid_mm_unregister_adp(uint32_t);
+uint32_t mraid_mm_adapter_app_handle(uint32_t);
+
+#endif /* _MEGARAID_IOCTL_H_ */

kernel-2.6.9-55.0.2.EL/megaraid-2.20.4.6-rh2/megaraid_mbox.h

@@ -0,0 +1,237 @@
+/*
+ *
+ *			Linux MegaRAID device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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.
+ *
+ * FILE		: megaraid_mbox.h
+ */
+
+#ifndef _MEGARAID_H_
+#define _MEGARAID_H_
+
+
+#include "mega_common.h"
+#include "mbox_defs.h"
+#include "megaraid_ioctl.h"
+
+
+#define MEGARAID_VERSION	"2.20.4.6-rh2"
+#define MEGARAID_EXT_VERSION	"(Release Date: Wed Jun 28 12:27:22 EST 2006)"
+
+
+/*
+ * Define some PCI values here until they are put in the kernel
+ */
+#define PCI_DEVICE_ID_PERC4_DI_DISCOVERY		0x000E
+#define PCI_SUBSYS_ID_PERC4_DI_DISCOVERY		0x0123
+
+#define PCI_DEVICE_ID_PERC4_SC				0x1960
+#define PCI_SUBSYS_ID_PERC4_SC				0x0520
+
+#define PCI_DEVICE_ID_PERC4_DC				0x1960
+#define PCI_SUBSYS_ID_PERC4_DC				0x0518
+
+#define PCI_DEVICE_ID_VERDE				0x0407
+
+#define PCI_DEVICE_ID_PERC4_DI_EVERGLADES		0x000F
+#define PCI_SUBSYS_ID_PERC4_DI_EVERGLADES		0x014A
+
+#define PCI_DEVICE_ID_PERC4E_SI_BIGBEND			0x0013
+#define PCI_SUBSYS_ID_PERC4E_SI_BIGBEND			0x016c
+
+#define PCI_DEVICE_ID_PERC4E_DI_KOBUK			0x0013
+#define PCI_SUBSYS_ID_PERC4E_DI_KOBUK			0x016d
+
+#define PCI_DEVICE_ID_PERC4E_DI_CORVETTE		0x0013
+#define PCI_SUBSYS_ID_PERC4E_DI_CORVETTE		0x016e
+
+#define PCI_DEVICE_ID_PERC4E_DI_EXPEDITION		0x0013
+#define PCI_SUBSYS_ID_PERC4E_DI_EXPEDITION		0x016f
+
+#define PCI_DEVICE_ID_PERC4E_DI_GUADALUPE		0x0013
+#define PCI_SUBSYS_ID_PERC4E_DI_GUADALUPE		0x0170
+
+#define PCI_DEVICE_ID_DOBSON				0x0408
+
+#define PCI_DEVICE_ID_MEGARAID_SCSI_320_0		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_0		0xA520
+
+#define PCI_DEVICE_ID_MEGARAID_SCSI_320_1		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_1		0x0520
+
+#define PCI_DEVICE_ID_MEGARAID_SCSI_320_2		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_2		0x0518
+
+#define PCI_DEVICE_ID_MEGARAID_I4_133_RAID		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_I4_133_RAID		0x0522
+
+#define PCI_DEVICE_ID_MEGARAID_SATA_150_4		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_SATA_150_4		0x4523
+
+#define PCI_DEVICE_ID_MEGARAID_SATA_150_6		0x1960
+#define PCI_SUBSYS_ID_MEGARAID_SATA_150_6		0x0523
+
+#define PCI_DEVICE_ID_LINDSAY				0x0409
+
+#define PCI_DEVICE_ID_INTEL_RAID_SRCS16			0x1960
+#define PCI_SUBSYS_ID_INTEL_RAID_SRCS16			0x0523
+
+#define PCI_DEVICE_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK	0x1960
+#define PCI_SUBSYS_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK	0x0520
+
+#define PCI_SUBSYS_ID_PERC3_QC				0x0471
+#define PCI_SUBSYS_ID_PERC3_DC				0x0493
+#define PCI_SUBSYS_ID_PERC3_SC				0x0475
+
+
+#define MBOX_MAX_SCSI_CMDS	128	// number of cmds reserved for kernel
+#define MBOX_MAX_USER_CMDS	32	// number of cmds for applications
+#define MBOX_DEF_CMD_PER_LUN	64	// default commands per lun
+#define MBOX_DEFAULT_SG_SIZE	26	// default sg size supported by all fw
+#define MBOX_MAX_SG_SIZE	32	// maximum scatter-gather list size
+#define MBOX_MAX_SECTORS	128	// maximum sectors per IO
+#define MBOX_TIMEOUT		30	// timeout value for internal cmds
+#define MBOX_BUSY_WAIT		10	// max usec to wait for busy mailbox
+#define MBOX_RESET_WAIT		180	// wait these many seconds in reset
+#define MBOX_RESET_EXT_WAIT	120	// extended wait reset
+#define MBOX_SYNC_WAIT_CNT      0xFFFF  // wait loop index for synchronous mode
+
+#define MBOX_SYNC_DELAY_200     200     // 200 micro-secondes
+
+/*
+ * maximum transfer that can happen through the firmware commands issued
+ * internnaly from the driver.
+ */
+#define MBOX_IBUF_SIZE		4096
+
+
+/**
+ * mbox_ccb_t - command control block specific to mailbox based controllers
+ * @raw_mbox		: raw mailbox pointer
+ * @mbox		: mailbox
+ * @mbox64		: extended mailbox
+ * @mbox_dma_h		: maibox dma address
+ * @sgl64		: 64-bit scatter-gather list
+ * @sgl32		: 32-bit scatter-gather list
+ * @sgl_dma_h		: dma handle for the scatter-gather list
+ * @pthru		: passthru structure
+ * @pthru_dma_h		: dma handle for the passthru structure
+ * @epthru		: extended passthru structure
+ * @epthru_dma_h	: dma handle for extended passthru structure
+ * @buf_dma_h		: dma handle for buffers w/o sg list
+ *
+ * command control block specific to the mailbox based controllers
+ */
+typedef struct {
+	uint8_t			*raw_mbox;
+	mbox_t			*mbox;
+	mbox64_t		*mbox64;
+	dma_addr_t		mbox_dma_h;
+	mbox_sgl64		*sgl64;
+	mbox_sgl32		*sgl32;
+	dma_addr_t		sgl_dma_h;
+	mraid_passthru_t	*pthru;
+	dma_addr_t		pthru_dma_h;
+	mraid_epassthru_t	*epthru;
+	dma_addr_t		epthru_dma_h;
+	dma_addr_t		buf_dma_h;
+} mbox_ccb_t;
+
+
+/**
+ * mraid_device_t - adapter soft state structure for mailbox controllers
+ * @param una_mbox64		: 64-bit mbox - unaligned
+ * @param una_mbox64_dma	: mbox dma addr - unaligned
+ * @param mbox			: 32-bit mbox - aligned
+ * @param mbox64		: 64-bit mbox - aligned
+ * @param mbox_dma		: mbox dma addr - aligned
+ * @param mailbox_lock		: exclusion lock for the mailbox
+ * @param baseport		: base port of hba memory
+ * @param baseaddr		: mapped addr of hba memory
+ * @param mbox_pool		: pool of mailboxes
+ * @param mbox_pool_handle	: handle for the mailbox pool memory
+ * @param epthru_pool		: a pool for extended passthru commands
+ * @param epthru_pool_handle	: handle to the pool above
+ * @param sg_pool		: pool of scatter-gather lists for this driver
+ * @param sg_pool_handle	: handle to the pool above
+ * @param ccb_list		: list of our command control blocks
+ * @param uccb_list		: list of cmd control blocks for mgmt module
+ * @param umbox64		: array of mailbox for user commands (cmm)
+ * @param pdrv_state		: array for state of each physical drive.
+ * @param last_disp		: flag used to show device scanning
+ * @param hw_error		: set if FW not responding
+ * @param fast_load		: If set, skip physical device scanning
+ * @channel_class		: channel class, RAID or SCSI
+ * @sysfs_sem			: semaphore to serialize access to sysfs res.
+ * @sysfs_uioc			: management packet to issue FW calls from sysfs
+ * @sysfs_mbox64		: mailbox packet to issue FW calls from sysfs
+ * @sysfs_buffer		: data buffer for FW commands issued from sysfs
+ * @sysfs_buffer_dma		: DMA buffer for FW commands issued from sysfs
+ * @sysfs_wait_q		: wait queue for sysfs operations
+ * @random_del_supported	: set if the random deletion is supported
+ * @curr_ldmap			: current LDID map
+ *
+ * Initialization structure for mailbox controllers: memory based and IO based
+ * All the fields in this structure are LLD specific and may be discovered at
+ * init() or start() time.
+ *
+ * NOTE: The fields of this structures are placed to minimize cache misses
+ */
+#define MAX_LD_EXTENDED64	64
+typedef struct {
+	mbox64_t			*una_mbox64;
+	dma_addr_t			una_mbox64_dma;
+	mbox_t				*mbox;
+	mbox64_t			*mbox64;
+	dma_addr_t			mbox_dma;
+	spinlock_t			mailbox_lock;
+	unsigned long			baseport;
+	void __iomem *			baseaddr;
+	struct mraid_pci_blk		mbox_pool[MBOX_MAX_SCSI_CMDS];
+	struct dma_pool			*mbox_pool_handle;
+	struct mraid_pci_blk		epthru_pool[MBOX_MAX_SCSI_CMDS];
+	struct dma_pool			*epthru_pool_handle;
+	struct mraid_pci_blk		sg_pool[MBOX_MAX_SCSI_CMDS];
+	struct dma_pool			*sg_pool_handle;
+	mbox_ccb_t			ccb_list[MBOX_MAX_SCSI_CMDS];
+	mbox_ccb_t			uccb_list[MBOX_MAX_USER_CMDS];
+	mbox64_t			umbox64[MBOX_MAX_USER_CMDS];
+
+	uint8_t				pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];
+	uint32_t			last_disp;
+	int				hw_error;
+	int				fast_load;
+	uint8_t				channel_class;
+	struct semaphore		sysfs_sem;
+	uioc_t				*sysfs_uioc;
+	mbox64_t			*sysfs_mbox64;
+	caddr_t				sysfs_buffer;
+	dma_addr_t			sysfs_buffer_dma;
+	wait_queue_head_t		sysfs_wait_q;
+	int				random_del_supported;
+	uint16_t			curr_ldmap[MAX_LD_EXTENDED64];
+} mraid_device_t;
+
+// route to raid device from adapter
+#define ADAP2RAIDDEV(adp)	((mraid_device_t *)((adp)->raid_device))
+
+#define MAILBOX_LOCK(rdev)	(&(rdev)->mailbox_lock)
+
+// Find out if this channel is a RAID or SCSI
+#define IS_RAID_CH(rdev, ch)	(((rdev)->channel_class >> (ch)) & 0x01)
+
+
+#define RDINDOOR(rdev)		readl((rdev)->baseaddr + 0x20)
+#define RDOUTDOOR(rdev)		readl((rdev)->baseaddr + 0x2C)
+#define WRINDOOR(rdev, value)	writel(value, (rdev)->baseaddr + 0x20)
+#define WROUTDOOR(rdev, value)	writel(value, (rdev)->baseaddr + 0x2C)
+
+#endif // _MEGARAID_H_
+
+// vim: set ts=8 sw=8 tw=78:

kernel-2.6.9-55.0.2.EL/megaraid-2.20.4.6-rh2/megaraid_mm.h

@@ -0,0 +1,105 @@
+/*
+ *
+ *			Linux MegaRAID device driver
+ *
+ * Copyright (c) 2003-2004  LSI Logic Corporation.
+ *
+ *	   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.
+ *
+ * FILE		: megaraid_mm.h
+ */
+
+#ifndef MEGARAID_MM_H
+#define MEGARAID_MM_H
+
+#include <linux/spinlock.h>
+#include <linux/fs.h>
+#include <asm/uaccess.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/list.h>
+#include <linux/ioctl32.h>
+#include <linux/diskdump.h>
+#include <scsi/scsi_device.h>
+
+#include "mbox_defs.h"
+#include "megaraid_ioctl.h"
+
+
+#define LSI_COMMON_MOD_VERSION	"2.20.2.6rh"
+#define LSI_COMMON_MOD_EXT_VERSION	\
+		"(Release Date: Tue Jan 16 12:35:06 PST 2007)"
+
+
+#define LSI_DBGLVL			dbglevel
+
+// The smallest dma pool
+#define MRAID_MM_INIT_BUFF_SIZE		4096
+
+/**
+ * mimd_t	: Old style ioctl packet structure (deprecated)
+ *
+ * @inlen	:
+ * @outlen	:
+ * @fca		:
+ * @opcode	:
+ * @subopcode	:
+ * @adapno	:
+ * @buffer	:
+ * @pad		:
+ * @length	:
+ * @mbox	:
+ * @pthru	:
+ * @data	:
+ * @pad		:
+ *
+ * Note		: This structure is DEPRECATED. New applications must use
+ *		: uioc_t structure instead. All new hba drivers use the new
+ *		: format. If we get this mimd packet, we will convert it into
+ *		: new uioc_t format and send it to the hba drivers.
+ */
+
+typedef struct mimd {
+
+	uint32_t inlen;
+	uint32_t outlen;
+
+	union {
+		uint8_t fca[16];
+		struct {
+			uint8_t opcode;
+			uint8_t subopcode;
+			uint16_t adapno;
+#if BITS_PER_LONG == 32
+			uint8_t __user *buffer;
+			uint8_t pad[4];
+#endif
+#if BITS_PER_LONG == 64
+			uint8_t __user *buffer;
+#endif
+			uint32_t length;
+		} __attribute__ ((packed)) fcs;
+	} __attribute__ ((packed)) ui;
+
+	uint8_t mbox[18];		/* 16 bytes + 2 status bytes */
+	mraid_passthru_t pthru;
+
+#if BITS_PER_LONG == 32
+	char __user *data;		/* buffer <= 4096 for 0x80 commands */
+	char pad[4];
+#endif
+#if BITS_PER_LONG == 64
+	char __user *data;
+#endif
+
+} __attribute__ ((packed))mimd_t;
+
+#endif // MEGARAID_MM_H
+
+// vi: set ts=8 sw=8 tw=78: