[linux-2.6-block.git] / include / scsi / scsi_transport_sas.h

#ifndef SCSI_TRANSPORT_SAS_H
#define SCSI_TRANSPORT_SAS_H

#include <linux/transport_class.h>
#include <linux/types.h>

struct scsi_transport_template;
struct sas_rphy;


enum sas_device_type {
	SAS_PHY_UNUSED,
	SAS_END_DEVICE,
	SAS_EDGE_EXPANDER_DEVICE,
	SAS_FANOUT_EXPANDER_DEVICE,
};

enum sas_protocol {
	SAS_PROTOCOL_SATA		= 0x01,
	SAS_PROTOCOL_SMP		= 0x02,
	SAS_PROTOCOL_STP		= 0x04,
	SAS_PROTOCOL_SSP		= 0x08,
};

enum sas_linkrate {
	SAS_LINK_RATE_UNKNOWN,
	SAS_PHY_DISABLED,
	SAS_LINK_RATE_FAILED,
	SAS_SATA_SPINUP_HOLD,
	SAS_SATA_PORT_SELECTOR,
	SAS_LINK_RATE_1_5_GBPS,
	SAS_LINK_RATE_3_0_GBPS,
	SAS_LINK_VIRTUAL,
};

struct sas_identify {
	enum sas_device_type	device_type;
	enum sas_protocol	initiator_port_protocols;
	enum sas_protocol	target_port_protocols;
	u64			sas_address;
	u8			phy_identifier;
};

struct sas_phy {
	struct device		dev;
	int			number;

	/* phy identification */
	struct sas_identify	identify;

	/* phy attributes */
	enum sas_linkrate	negotiated_linkrate;
	enum sas_linkrate	minimum_linkrate_hw;
	enum sas_linkrate	minimum_linkrate;
	enum sas_linkrate	maximum_linkrate_hw;
	enum sas_linkrate	maximum_linkrate;
	u8			port_identifier;

	/* link error statistics */
	u32			invalid_dword_count;
	u32			running_disparity_error_count;
	u32			loss_of_dword_sync_count;
	u32			phy_reset_problem_count;

	/* the other end of the link */
	struct sas_rphy		*rphy;
};

#define dev_to_phy(d) \
	container_of((d), struct sas_phy, dev)
#define transport_class_to_phy(cdev) \
	dev_to_phy((cdev)->dev)
#define phy_to_shost(phy) \
	dev_to_shost((phy)->dev.parent)

struct sas_rphy {
	struct device		dev;
	struct sas_identify	identify;
	struct list_head	list;
	u32			scsi_target_id;
};

#define dev_to_rphy(d) \
	container_of((d), struct sas_rphy, dev)
#define transport_class_to_rphy(cdev) \
	dev_to_rphy((cdev)->dev)
#define rphy_to_shost(rphy) \
	dev_to_shost((rphy)->dev.parent)


/* The functions by which the transport class and the driver communicate */
struct sas_function_template {
	int (*get_linkerrors)(struct sas_phy *);
};


extern void sas_remove_host(struct Scsi_Host *);

extern struct sas_phy *sas_phy_alloc(struct device *, int);
extern void sas_phy_free(struct sas_phy *);
extern int sas_phy_add(struct sas_phy *);
extern void sas_phy_delete(struct sas_phy *);
extern int scsi_is_sas_phy(const struct device *);

extern struct sas_rphy *sas_rphy_alloc(struct sas_phy *);
void sas_rphy_free(struct sas_rphy *);
extern int sas_rphy_add(struct sas_rphy *);
extern void sas_rphy_delete(struct sas_rphy *);
extern int scsi_is_sas_rphy(const struct device *);

extern struct scsi_transport_template *
sas_attach_transport(struct sas_function_template *);
extern void sas_release_transport(struct scsi_transport_template *);

#endif /* SCSI_TRANSPORT_SAS_H */
Commit	Line	Data
c7ebbbce CH	1	#ifndef SCSI_TRANSPORT_SAS_H
	2	#define SCSI_TRANSPORT_SAS_H
	3
	4	#include <linux/transport_class.h>
	5	#include <linux/types.h>
	6
	7	struct scsi_transport_template;
	8	struct sas_rphy;
	9
	10
	11	enum sas_device_type {
	12	SAS_PHY_UNUSED,
	13	SAS_END_DEVICE,
	14	SAS_EDGE_EXPANDER_DEVICE,
	15	SAS_FANOUT_EXPANDER_DEVICE,
	16	};
	17
	18	enum sas_protocol {
	19	SAS_PROTOCOL_SATA = 0x01,
	20	SAS_PROTOCOL_SMP = 0x02,
	21	SAS_PROTOCOL_STP = 0x04,
	22	SAS_PROTOCOL_SSP = 0x08,
	23	};
	24
	25	enum sas_linkrate {
	26	SAS_LINK_RATE_UNKNOWN,
	27	SAS_PHY_DISABLED,
	28	SAS_LINK_RATE_FAILED,
	29	SAS_SATA_SPINUP_HOLD,
	30	SAS_SATA_PORT_SELECTOR,
	31	SAS_LINK_RATE_1_5_GBPS,
	32	SAS_LINK_RATE_3_0_GBPS,
	33	SAS_LINK_VIRTUAL,
	34	};
	35
	36	struct sas_identify {
	37	enum sas_device_type device_type;
	38	enum sas_protocol initiator_port_protocols;
	39	enum sas_protocol target_port_protocols;
	40	u64 sas_address;
	41	u8 phy_identifier;
	42	};
	43
c7ebbbce CH	44	struct sas_phy {
	45	struct device dev;
	46	int number;
c3ee74c4 CH	47
c3ee74c4 CH	48	/* phy identification */
c7ebbbce	49	struct sas_identify identify;
c3ee74c4 CH	50
c3ee74c4 CH	51	/* phy attributes */
c7ebbbce CH	52	enum sas_linkrate negotiated_linkrate;
	53	enum sas_linkrate minimum_linkrate_hw;
	54	enum sas_linkrate minimum_linkrate;
	55	enum sas_linkrate maximum_linkrate_hw;
	56	enum sas_linkrate maximum_linkrate;
	57	u8 port_identifier;
c3ee74c4 CH	58
	59	/* link error statistics */
	60	u32 invalid_dword_count;
	61	u32 running_disparity_error_count;
	62	u32 loss_of_dword_sync_count;
	63	u32 phy_reset_problem_count;
	64
	65	/* the other end of the link */
c7ebbbce CH	66	struct sas_rphy *rphy;
	67	};
	68
	69	#define dev_to_phy(d) \
	70	container_of((d), struct sas_phy, dev)
	71	#define transport_class_to_phy(cdev) \
	72	dev_to_phy((cdev)->dev)
	73	#define phy_to_shost(phy) \
	74	dev_to_shost((phy)->dev.parent)
	75
	76	struct sas_rphy {
	77	struct device dev;
	78	struct sas_identify identify;
	79	struct list_head list;
	80	u32 scsi_target_id;
	81	};
	82
	83	#define dev_to_rphy(d) \
	84	container_of((d), struct sas_rphy, dev)
	85	#define transport_class_to_rphy(cdev) \
	86	dev_to_rphy((cdev)->dev)
	87	#define rphy_to_shost(rphy) \
	88	dev_to_shost((rphy)->dev.parent)
	89
c3ee74c4 CH	90
	91	/* The functions by which the transport class and the driver communicate */
	92	struct sas_function_template {
	93	int (get_linkerrors)(struct sas_phy );
	94	};
	95
	96
c7ebbbce CH	97	extern void sas_remove_host(struct Scsi_Host *);
	98
	99	extern struct sas_phy sas_phy_alloc(struct device , int);
	100	extern void sas_phy_free(struct sas_phy *);
	101	extern int sas_phy_add(struct sas_phy *);
	102	extern void sas_phy_delete(struct sas_phy *);
	103	extern int scsi_is_sas_phy(const struct device *);
	104
	105	extern struct sas_rphy sas_rphy_alloc(struct sas_phy );
	106	void sas_rphy_free(struct sas_rphy *);
	107	extern int sas_rphy_add(struct sas_rphy *);
	108	extern void sas_rphy_delete(struct sas_rphy *);
	109	extern int scsi_is_sas_rphy(const struct device *);
	110
	111	extern struct scsi_transport_template *
	112	sas_attach_transport(struct sas_function_template *);
	113	extern void sas_release_transport(struct scsi_transport_template *);
	114
	115	#endif /* SCSI_TRANSPORT_SAS_H */