NetBSD/sys/dev/pci/arcmsrvar.h

/*	$NetBSD: arcmsrvar.h,v 1.8 2008/01/03 21:28:11 xtraeme Exp $ */
/*	Derived from $OpenBSD: arc.c,v 1.68 2007/10/27 03:28:27 dlg Exp $ */

/*
 * Copyright (c) 2007 Juan Romero Pardines <xtraeme@netbsd.org>
 * Copyright (c) 2006 David Gwynne <dlg@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _PCI_ARCMSRVAR_H_
#define _PCI_ARCMSRVAR_H_

#define ARC_PCI_BAR			PCI_MAPREG_START

#define ARC_REG_INB_MSG0		0x0010
#define  ARC_REG_INB_MSG0_NOP			(0x00000000)
#define  ARC_REG_INB_MSG0_GET_CONFIG		(0x00000001)
#define  ARC_REG_INB_MSG0_SET_CONFIG		(0x00000002)
#define  ARC_REG_INB_MSG0_ABORT_CMD		(0x00000003)
#define  ARC_REG_INB_MSG0_STOP_BGRB		(0x00000004)
#define  ARC_REG_INB_MSG0_FLUSH_CACHE		(0x00000005)
#define  ARC_REG_INB_MSG0_START_BGRB		(0x00000006)
#define  ARC_REG_INB_MSG0_CHK331PENDING		(0x00000007)
#define  ARC_REG_INB_MSG0_SYNC_TIMER		(0x00000008)
#define ARC_REG_INB_MSG1		0x0014
#define ARC_REG_OUTB_ADDR0		0x0018
#define ARC_REG_OUTB_ADDR1		0x001c
#define  ARC_REG_OUTB_ADDR1_FIRMWARE_OK		(1<<31)
#define ARC_REG_INB_DOORBELL		0x0020
#define  ARC_REG_INB_DOORBELL_WRITE_OK		(1<<0)
#define  ARC_REG_INB_DOORBELL_READ_OK		(1<<1)
#define ARC_REG_OUTB_DOORBELL		0x002c
#define  ARC_REG_OUTB_DOORBELL_WRITE_OK		(1<<0)
#define  ARC_REG_OUTB_DOORBELL_READ_OK		(1<<1)
#define ARC_REG_INTRSTAT		0x0030
#define  ARC_REG_INTRSTAT_MSG0			(1<<0)
#define  ARC_REG_INTRSTAT_MSG1			(1<<1)
#define  ARC_REG_INTRSTAT_DOORBELL		(1<<2)
#define  ARC_REG_INTRSTAT_POSTQUEUE		(1<<3)
#define  ARC_REG_INTRSTAT_PCI			(1<<4)
#define ARC_REG_INTRMASK		0x0034
#define  ARC_REG_INTRMASK_MSG0			(1<<0)
#define  ARC_REG_INTRMASK_MSG1			(1<<1)
#define  ARC_REG_INTRMASK_DOORBELL		(1<<2)
#define  ARC_REG_INTRMASK_POSTQUEUE		(1<<3)
#define  ARC_REG_INTRMASK_PCI			(1<<4)
#define ARC_REG_POST_QUEUE		0x0040
#define  ARC_REG_POST_QUEUE_ADDR_SHIFT		5
#define  ARC_REG_POST_QUEUE_IAMBIOS		(1<<30)
#define  ARC_REG_POST_QUEUE_BIGFRAME		(1<<31)
#define ARC_REG_REPLY_QUEUE		0x0044
#define  ARC_REG_REPLY_QUEUE_ADDR_SHIFT		5
#define  ARC_REG_REPLY_QUEUE_ERR		(1<<28)
#define  ARC_REG_REPLY_QUEUE_IAMBIOS		(1<<30)
#define ARC_REG_MSGBUF			0x0a00
#define  ARC_REG_MSGBUF_LEN		1024
#define ARC_REG_IOC_WBUF_LEN		0x0e00
#define ARC_REG_IOC_WBUF		0x0e04
#define ARC_REG_IOC_RBUF_LEN		0x0f00
#define ARC_REG_IOC_RBUF		0x0f04
#define  ARC_REG_IOC_RWBUF_MAXLEN	124 /* for both RBUF and WBUF */

struct arc_msg_firmware_info {
	uint32_t	signature;
#define ARC_FWINFO_SIGNATURE_GET_CONFIG		(0x87974060)
	uint32_t	request_len;
	uint32_t	queue_len;
	uint32_t	sdram_size;
	uint32_t	sata_ports;
	uint8_t		vendor[40];
	uint8_t		model[8];
	uint8_t		fw_version[16];
	uint8_t		device_map[16];
} __packed;

struct arc_msg_scsicmd {
	uint8_t		bus;
	uint8_t		target;
	uint8_t		lun;
	uint8_t		function;

	uint8_t		cdb_len;
	uint8_t		sgl_len;
	uint8_t		flags;
#define ARC_MSG_SCSICMD_FLAG_SGL_BSIZE_512	(1<<0)
#define ARC_MSG_SCSICMD_FLAG_FROM_BIOS		(1<<1)
#define ARC_MSG_SCSICMD_FLAG_WRITE		(1<<2)
#define ARC_MSG_SCSICMD_FLAG_SIMPLEQ		(0x00)
#define ARC_MSG_SCSICMD_FLAG_HEADQ		(0x08)
#define ARC_MSG_SCSICMD_FLAG_ORDERQ		(0x10)
	uint8_t		reserved;

	uint32_t	context;
	uint32_t	data_len;

#define ARC_MSG_CDBLEN				16
	uint8_t		cdb[ARC_MSG_CDBLEN];

	uint8_t		status;
#define ARC_MSG_STATUS_SELTIMEOUT		0xf0
#define ARC_MSG_STATUS_ABORTED			0xf1
#define ARC_MSG_STATUS_INIT_FAIL		0xf2
#define ARC_MSG_SENSELEN			15
	uint8_t		sense_data[ARC_MSG_SENSELEN];

	/* followed by an sgl */
} __packed;

struct arc_sge {
	uint32_t	sg_hdr;
#define ARC_SGE_64BIT				(1<<24)
	uint32_t	sg_lo_addr;
	uint32_t	sg_hi_addr;
} __packed;

#define ARC_MAX_TARGET		16
#define ARC_MAX_LUN		8
#define ARC_MAX_IOCMDLEN	512
#define ARC_BLOCKSIZE		512

/* 
 * the firmware deals with up to 256 or 512 byte command frames.
 */

/* 
 * sizeof(struct arc_msg_scsicmd) + (sizeof(struct arc_sge) * 38) == 508.
 */
#define ARC_SGL_MAXLEN		38
/* 
 * sizeof(struct arc_msg_scsicmd) + (sizeof(struct arc_sge) * 17) == 252.
 */
#define ARC_SGL_256LEN		17

struct arc_io_cmd {
	struct arc_msg_scsicmd	cmd;
	struct arc_sge		sgl[ARC_SGL_MAXLEN];
} __packed;

/* 
 * definitions of the firmware commands sent via the doorbells.
 */
struct arc_fw_hdr {
	uint8_t		byte1;
	uint8_t		byte2;
	uint8_t		byte3;
} __packed;

struct arc_fw_bufhdr {
	struct arc_fw_hdr	hdr;
	uint16_t		len;
} __packed;

/* Firmware command codes */
#define ARC_FW_CHECK_PASS	0x14	/* opcode + 1 byte length + password */
#define ARC_FW_GETEVENTS	0x1a	/* opcode + 1 byte for page 0/1/2/3 */
#define ARC_FW_GETHWMON		0x1b	/* opcode + arc_fw_hwmon */
#define ARC_FW_RAIDINFO		0x20	/* opcode + raid# */
#define ARC_FW_VOLINFO		0x21	/* opcode + vol# */
#define ARC_FW_DISKINFO		0x22	/* opcode + physdisk# */
#define ARC_FW_SYSINFO		0x23	/* opcode. reply is fw_sysinfo */
#define ARC_FW_CLEAREVENTS	0x24	/* opcode only */
#define ARC_FW_MUTE_ALARM	0x30	/* opcode only */
#define ARC_FW_SET_ALARM	0x31	/* opcode + 1 byte for setting */
#define  ARC_FW_SET_ALARM_DISABLE		0x00
#define  ARC_FW_SET_ALARM_ENABLE		0x01
#define ARC_FW_SET_PASS		0x32	/* opcode + 1 byte length + password */
#define ARC_FW_REBUILD_PRIO	0x34	/* Rebuild priority for disks */
#define  ARC_FW_REBUILD_PRIO_ULTRALOW		(1<<0)
#define  ARC_FW_REBUILD_PRIO_LOW		(1<<1)
#define  ARC_FW_REBUILD_PRIO_NORMAL		(1<<2)
#define  ARC_FW_REBUILD_PRIO_HIGH		(1<<3)
#define ARC_FW_SET_MAXATA_MODE	0x35	/* opcode + 1 byte mode */
#define  ARC_FW_SET_MAXATA_MODE_133		(1<<0)
#define  ARC_FW_SET_MAXATA_MODE_100		(1<<1)
#define  ARC_FW_SET_MAXATA_MODE_66		(1<<2)
#define  ARC_FW_SET_MAXATA_MODE_33		(1<<3)
#define ARC_FW_NOP		0x38	/* opcode only */
/*
 * Structure for ARC_FW_CREATE_PASSTHRU:
 *
 * byte 2	command code 0x40
 * byte 3	device #
 * byte 4	scsi channel (0/1)
 * byte 5	scsi id (0/15)
 * byte 6	scsi lun (0/7)
 * byte 7	tagged queue (1 enabled)
 * byte 8	cache mode (1 enabled)
 * byte 9	max speed ((0/1/2/3/4 -> 33/66/100/133/150)
 */
#define ARC_FW_CREATE_PASSTHRU	0x40
#define ARC_FW_DELETE_PASSTHRU	0x42	/* opcode + device# */

/*
 * Structure for ARC_FW_CREATE_RAIDSET:
 *
 * byte 2	command code 0x50
 * byte 3-6	device mask
 * byte 7-22	raidset name (byte 7 == 0 use default)
 */	
#define ARC_FW_CREATE_RAIDSET	0x50
#define ARC_FW_DELETE_RAIDSET	0x51	/* opcode + raidset# */
#define ARC_FW_CREATE_HOTSPARE	0x54	/* opcode + 4 bytes device mask */
#define ARC_FW_DELETE_HOTSPARE	0x55	/* opcode + 4 bytes device mask */

/*
 * Structure for ARC_FW_CREATE_VOLUME/ARC_FW_MODIFY_VOLUME:
 *
 * byte 2 	command code 0x60
 * byte 3 	raidset#
 * byte 4-19 	volume set name (byte 4 == 0 use default)
 * byte 20-27	volume capacity in blocks
 * byte 28	raid level
 * byte 29	stripe size
 * byte 30	channel
 * byte 31	ID
 * byte 32	LUN
 * byte 33	1 enable tag queuing
 * byte 33	1 enable cache
 * byte 35	speed 0/1/2/3/4 -> 33/66/100/133/150
 * byte 36	1 for quick init (only for CREATE_VOLUME)
 */
#define ARC_FW_CREATE_VOLUME	0x60
#define ARC_FW_MODIFY_VOLUME 	0x61
#define ARC_FW_DELETE_VOLUME	0x62	/* opcode + vol# */
#define ARC_FW_START_CHECKVOL	0x63	/* opcode + vol# */
#define ARC_FW_STOP_CHECKVOL	0x64	/* opcode only */

/* Status codes for the firmware command codes */
#define ARC_FW_CMD_OK		0x41
#define ARC_FW_CMD_RAIDINVAL	0x42
#define ARC_FW_CMD_VOLINVAL	0x43
#define ARC_FW_CMD_NORAID	0x44
#define ARC_FW_CMD_NOVOLUME	0x45
#define ARC_FW_CMD_NOPHYSDRV	0x46
#define ARC_FW_CMD_PARAM_ERR	0x47
#define ARC_FW_CMD_UNSUPPORTED	0x48
#define ARC_FW_CMD_DISKCFG_CHGD	0x49
#define ARC_FW_CMD_PASS_INVAL	0x4a
#define ARC_FW_CMD_NODISKSPACE	0x4b
#define ARC_FW_CMD_CHECKSUM_ERR	0x4c
#define ARC_FW_CMD_PASS_REQD	0x4d

struct arc_fw_hwmon {
	uint8_t 	nfans;
	uint8_t 	nvoltages;
	uint8_t 	ntemps;
	uint8_t 	npower;
	uint16_t 	fan0;		/* RPM */
	uint16_t 	fan1;		/* RPM */
	uint16_t 	voltage_orig0;	/* original value * 1000 */
	uint16_t 	voltage_val0;	/* value */
	uint16_t 	voltage_orig1;	/* original value * 1000 */
	uint16_t 	voltage_val1;	/* value */
	uint16_t 	voltage_orig2;
	uint16_t 	voltage_val2;
	uint8_t 	temp0;
	uint8_t 	temp1;
	uint8_t 	pwr_indicator;	/* (bit0 : power#0, bit1 : power#1) */
	uint8_t 	ups_indicator;
} __packed;

struct arc_fw_comminfo {
	uint8_t		baud_rate;
	uint8_t		data_bits;
	uint8_t		stop_bits;
	uint8_t		parity;
	uint8_t		flow_control;
} __packed;

struct arc_fw_scsiattr {
	uint8_t		channel;	/* channel for SCSI target (0/1) */
	uint8_t		target;
	uint8_t		lun;
	uint8_t		tagged;
	uint8_t		cache;
	uint8_t		speed;
} __packed;

struct arc_fw_raidinfo {
	uint8_t		set_name[16];
	uint32_t	capacity;
	uint32_t	capacity2;
	uint32_t	fail_mask;
	uint8_t		device_array[32];
	uint8_t		member_devices;
	uint8_t		new_member_devices;
	uint8_t		raid_state;
	uint8_t		volumes;
	uint8_t		volume_list[16];
	uint8_t		reserved1[3];
	uint8_t		free_segments;
	uint32_t	raw_stripes[8];
	uint8_t		reserved2[12];
} __packed;

struct arc_fw_volinfo {
	uint8_t		set_name[16];
	uint32_t	capacity;
	uint32_t	capacity2;
	uint32_t	fail_mask;
	uint32_t	stripe_size;	/* in blocks */
	uint32_t	new_fail_mask;
	uint32_t	new_stripe_size;
	uint32_t	volume_status;
#define ARC_FW_VOL_STATUS_NORMAL	0x00
#define ARC_FW_VOL_STATUS_INITTING	(1<<0)
#define ARC_FW_VOL_STATUS_FAILED	(1<<1)
#define ARC_FW_VOL_STATUS_MIGRATING	(1<<2)
#define ARC_FW_VOL_STATUS_REBUILDING	(1<<3)
#define ARC_FW_VOL_STATUS_NEED_INIT	(1<<4)
#define ARC_FW_VOL_STATUS_NEED_MIGRATE	(1<<5)
#define ARC_FW_VOL_STATUS_INIT_FLAG	(1<<6)
#define ARC_FW_VOL_STATUS_NEED_REGEN	(1<<7)
#define ARC_FW_VOL_STATUS_CHECKING	(1<<8)
#define ARC_FW_VOL_STATUS_NEED_CHECK	(1<<9)
	uint32_t	progress;
	struct arc_fw_scsiattr	scsi_attr;
	uint8_t		member_disks;
	uint8_t		raid_level;
#define ARC_FW_VOL_RAIDLEVEL_0		0x00
#define ARC_FW_VOL_RAIDLEVEL_1		0x01
#define ARC_FW_VOL_RAIDLEVEL_3		0x02
#define ARC_FW_VOL_RAIDLEVEL_5		0x03
#define ARC_FW_VOL_RAIDLEVEL_6		0x04
#define ARC_FW_VOL_RAIDLEVEL_PASSTHRU	0x05
	uint8_t		new_member_disks;
	uint8_t		new_raid_level;
	uint8_t		raid_set_number;
	uint8_t		reserved[5];
} __packed;

struct arc_fw_diskinfo {
	uint8_t		model[40];
	uint8_t		serial[20];
	uint8_t		firmware_rev[8];
	uint32_t	capacity;
	uint32_t	capacity2;
	uint8_t		device_state;
#define ARC_FW_DISK_RAIDMEMBER	0x89	/* disk is member of a raid set */
#define ARC_FW_DISK_PASSTHRU	0x8b	/* pass through disk */
#define ARC_FW_DISK_HOTSPARE	0xa9	/* hotspare disk */
#define ARC_FW_DISK_UNUSED	0xc9	/* free/unused disk */
	uint8_t		pio_mode;
	uint8_t		current_udma_mode;
	uint8_t		udma_mode;
	uint8_t		drive_select;
	uint8_t		raid_number;	/* 0xff unowned */
	struct arc_fw_scsiattr	scsi_attr;
	uint8_t		reserved[40];
} __packed;

struct arc_fw_sysinfo {
	uint8_t		vendor_name[40];
	uint8_t		serial_number[16];
	uint8_t		firmware_version[16];
	uint8_t		boot_version[16];
	uint8_t		mb_version[16];
	uint8_t		model_name[8];

	uint8_t		local_ip[4];
	uint8_t		current_ip[4];

	uint32_t	time_tick;
	uint32_t	cpu_speed;
	uint32_t	icache;
	uint32_t	dcache;
	uint32_t	scache;
	uint32_t	memory_size;
	uint32_t	memory_speed;
	uint32_t	events;

	uint8_t		gsiMacAddress[6];
	uint8_t		gsiDhcp;

	uint8_t		alarm;
	uint8_t		channel_usage;
	uint8_t		max_ata_mode;
	uint8_t		sdram_ecc;
	uint8_t		rebuild_priority;
	struct arc_fw_comminfo	comm_a;
	struct arc_fw_comminfo	comm_b;
	uint8_t		ide_channels;
	uint8_t		scsi_host_channels;
	uint8_t		ide_host_channels;
	uint8_t		max_volume_set;
	uint8_t		max_raid_set;
	uint8_t		ether_port;
	uint8_t		raid6_engine;
	uint8_t		reserved[75];
} __packed;

/*
 * autconf(9) glue.
 */
struct arc_ccb;
TAILQ_HEAD(arc_ccb_list, arc_ccb);

struct arc_softc {
	struct device		sc_dev;
	struct scsipi_channel	sc_chan;
	struct scsipi_adapter	sc_adapter;

	pci_chipset_tag_t	sc_pc;
	pcitag_t		sc_tag;

	bus_space_tag_t		sc_iot;
	bus_space_handle_t	sc_ioh;
	bus_size_t		sc_ios;
	bus_dma_tag_t		sc_dmat;

	void			*sc_ih;

	void			*sc_shutdownhook;

	int			sc_req_count;
	u_int			sc_maxdisks;

	struct arc_dmamem	*sc_requests;
	struct arc_ccb		*sc_ccbs;
	struct arc_ccb_list	sc_ccb_free;

	struct lwp		*sc_lwp;
	volatile int		sc_talking;
	kmutex_t		sc_mutex;
	kcondvar_t		sc_condvar;
	krwlock_t		sc_rwlock;

	struct sysmon_envsys	*sc_sme;
	envsys_data_t		*sc_sensors;
	int			sc_nsensors;

	struct device		*sc_scsibus_dv;
};

/* 
 * interface for scsi midlayer to talk to.
 */
void 	arc_scsi_cmd(struct scsipi_channel *, scsipi_adapter_req_t, void *);

/* 
 * code to deal with getting bits in and out of the bus space.
 */
uint32_t arc_read(struct arc_softc *, bus_size_t);
void 	arc_read_region(struct arc_softc *, bus_size_t, void *,
			size_t);
void 	arc_write(struct arc_softc *, bus_size_t, uint32_t);
void 	arc_write_region(struct arc_softc *, bus_size_t, void *,
			 size_t);
int 	arc_wait_eq(struct arc_softc *, bus_size_t, uint32_t,
		    uint32_t);
int 	arc_wait_ne(struct arc_softc *, bus_size_t, uint32_t,
		    uint32_t);
int	arc_msg0(struct arc_softc *, uint32_t);

#define arc_push(_s, _r)	arc_write((_s), ARC_REG_POST_QUEUE, (_r))
#define arc_pop(_s)		arc_read((_s), ARC_REG_REPLY_QUEUE)

/* 
 * wrap up the bus_dma api.
 */
struct arc_dmamem {
	bus_dmamap_t		adm_map;
	bus_dma_segment_t	adm_seg;
	size_t			adm_size;
	void			*adm_kva;
};
#define ARC_DMA_MAP(_adm)	((_adm)->adm_map)
#define ARC_DMA_DVA(_adm)	((_adm)->adm_map->dm_segs[0].ds_addr)
#define ARC_DMA_KVA(_adm)	((void *)(_adm)->adm_kva)

struct arc_dmamem 	*arc_dmamem_alloc(struct arc_softc *, size_t);
void 			arc_dmamem_free(struct arc_softc *,
					struct arc_dmamem *);

/* 
 * stuff to manage a scsi command.
 */
struct arc_ccb {
	struct arc_softc	*ccb_sc;
	int			ccb_id;

	struct scsipi_xfer	*ccb_xs;

	bus_dmamap_t		ccb_dmamap;
	bus_addr_t		ccb_offset;
	struct arc_io_cmd	*ccb_cmd;
	uint32_t		ccb_cmd_post;

	TAILQ_ENTRY(arc_ccb)	ccb_link;
};

int 	arc_alloc_ccbs(struct arc_softc *);
struct arc_ccb	*arc_get_ccb(struct arc_softc *);
void 	arc_put_ccb(struct arc_softc *, struct arc_ccb *);
int 	arc_load_xs(struct arc_ccb *);
int 	arc_complete(struct arc_softc *, struct arc_ccb *, int);
void 	arc_scsi_cmd_done(struct arc_softc *, struct arc_ccb *,
			  uint32_t);

/* 
 * real stuff for dealing with the hardware.
 */
int 	arc_map_pci_resources(struct arc_softc *, struct pci_attach_args *);
void 	arc_unmap_pci_resources(struct arc_softc *);
int 	arc_query_firmware(struct arc_softc *);

/* 
 * stuff to do messaging via the doorbells.
 */
void 	arc_lock(struct arc_softc *);
void 	arc_unlock(struct arc_softc *);
void 	arc_wait(struct arc_softc *);
uint8_t 	arc_msg_cksum(void *, uint16_t);
int 	arc_msgbuf(struct arc_softc *, void *, size_t, void *, size_t);

#endif /* ! _PCI_ARCMSRVAR_H_ */