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struct sas_rphy; struct request; #if !IS_ENABLED(CONFIG_SCSI_SAS_ATTRS) static inline int scsi_is_sas_rphy(const struct device *sdev) { return 0; } #else extern int scsi_is_sas_rphy(const struct device *); #endif static inline int sas_protocol_ata(enum sas_protocol proto) { return ((proto & SAS_PROTOCOL_SATA) || (proto & SAS_PROTOCOL_STP))? 1 : 0; } enum sas_linkrate { /* These Values are defined in the SAS standard */ SAS_LINK_RATE_UNKNOWN = 0, SAS_PHY_DISABLED = 1, SAS_PHY_RESET_PROBLEM = 2, SAS_SATA_SPINUP_HOLD = 3, SAS_SATA_PORT_SELECTOR = 4, SAS_PHY_RESET_IN_PROGRESS = 5, SAS_LINK_RATE_1_5_GBPS = 8, SAS_LINK_RATE_G1 = SAS_LINK_RATE_1_5_GBPS, SAS_LINK_RATE_3_0_GBPS = 9, SAS_LINK_RATE_G2 = SAS_LINK_RATE_3_0_GBPS, SAS_LINK_RATE_6_0_GBPS = 10, SAS_LINK_RATE_12_0_GBPS = 11, /* These are virtual to the transport class and may never * be signalled normally since the standard defined field * is only 4 bits */ SAS_LINK_RATE_FAILED = 0x10, SAS_PHY_VIRTUAL = 0x11, }; 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; int enabled; /* 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; /* link error statistics */ u32 invalid_dword_count; u32 running_disparity_error_count; u32 loss_of_dword_sync_count; u32 phy_reset_problem_count; /* for the list of phys belonging to a port */ struct list_head port_siblings; /* available to the lldd */ void *hostdata; }; #define dev_to_phy(d) \ container_of((d), struct sas_phy, dev) #define transport_class_to_phy(dev) \ dev_to_phy((dev)->parent) #define phy_to_shost(phy) \ dev_to_shost((phy)->dev.parent) struct request_queue; struct sas_rphy { struct device dev; struct sas_identify identify; struct list_head list; struct request_queue *q; u32 scsi_target_id; }; #define dev_to_rphy(d) \ container_of((d), struct sas_rphy, dev) #define transport_class_to_rphy(dev) \ dev_to_rphy((dev)->parent) #define rphy_to_shost(rphy) \ dev_to_shost((rphy)->dev.parent) #define target_to_rphy(targ) \ dev_to_rphy((targ)->dev.parent) struct sas_end_device { struct sas_rphy rphy; /* flags */ unsigned ready_led_meaning:1; unsigned tlr_supported:1; unsigned tlr_enabled:1; /* parameters */ u16 I_T_nexus_loss_timeout; u16 initiator_response_timeout; }; #define rphy_to_end_device(r) \ container_of((r), struct sas_end_device, rphy) struct sas_expander_device { int level; int next_port_id; #define SAS_EXPANDER_VENDOR_ID_LEN 8 char vendor_id[SAS_EXPANDER_VENDOR_ID_LEN+1]; #define SAS_EXPANDER_PRODUCT_ID_LEN 16 char product_id[SAS_EXPANDER_PRODUCT_ID_LEN+1]; #define SAS_EXPANDER_PRODUCT_REV_LEN 4 char product_rev[SAS_EXPANDER_PRODUCT_REV_LEN+1]; #define SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN 8 char component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN+1]; u16 component_id; u8 component_revision_id; struct sas_rphy rphy; }; #define rphy_to_expander_device(r) \ container_of((r), struct sas_expander_device, rphy) struct sas_port { struct device dev; int port_identifier; int num_phys; /* port flags */ unsigned int is_backlink:1; /* the other end of the link */ struct sas_rphy *rphy; struct mutex phy_list_mutex; struct list_head phy_list; struct list_head del_list; /* libsas only */ }; #define dev_to_sas_port(d) \ container_of((d), struct sas_port, dev) #define transport_class_to_sas_port(dev) \ dev_to_sas_port((dev)->parent) struct sas_phy_linkrates { enum sas_linkrate maximum_linkrate; enum sas_linkrate minimum_linkrate; }; /* The functions by which the transport class and the driver communicate */ struct sas_function_template { int (*get_linkerrors)(struct sas_phy *); int (*get_enclosure_identifier)(struct sas_rphy *, u64 *); int (*get_bay_identifier)(struct sas_rphy *); int (*phy_reset)(struct sas_phy *, int); int (*phy_enable)(struct sas_phy *, int); int (*phy_setup)(struct sas_phy *); void (*phy_release)(struct sas_phy *); int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *); void (*smp_handler)(struct bsg_job *, struct Scsi_Host *, struct sas_rphy *); }; void sas_remove_children(struct device *); 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 *); u64 sas_get_address(struct scsi_device *); unsigned int sas_tlr_supported(struct scsi_device *); unsigned int sas_is_tlr_enabled(struct scsi_device *); void sas_disable_tlr(struct scsi_device *); void sas_enable_tlr(struct scsi_device *); extern struct sas_rphy *sas_end_device_alloc(struct sas_port *); extern struct sas_rphy *sas_expander_alloc(struct sas_port *, enum sas_device_type); void sas_rphy_free(struct sas_rphy *); extern int sas_rphy_add(struct sas_rphy *); extern void sas_rphy_remove(struct sas_rphy *); extern void sas_rphy_delete(struct sas_rphy *); extern void sas_rphy_unlink(struct sas_rphy *); struct sas_port *sas_port_alloc(struct device *, int); struct sas_port *sas_port_alloc_num(struct device *); int sas_port_add(struct sas_port *); void sas_port_free(struct sas_port *); void sas_port_delete(struct sas_port *); void sas_port_add_phy(struct sas_port *, struct sas_phy *); void sas_port_delete_phy(struct sas_port *, struct sas_phy *); void sas_port_mark_backlink(struct sas_port *); int scsi_is_sas_port(const struct device *); struct sas_phy *sas_port_get_phy(struct sas_port *port); static inline void sas_port_put_phy(struct sas_phy *phy) { if (phy) put_device(&phy->dev); } extern struct scsi_transport_template * sas_attach_transport(struct sas_function_template *); extern void sas_release_transport(struct scsi_transport_template *); int sas_read_port_mode_page(struct scsi_device *); static inline int scsi_is_sas_expander_device(struct device *dev) { struct sas_rphy *rphy; if (!scsi_is_sas_rphy(dev)) return 0; rphy = dev_to_rphy(dev); return rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE || rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE; } #define scsi_is_sas_phy_local(phy) scsi_is_host_device((phy)->dev.parent) #endif /* SCSI_TRANSPORT_SAS_H */