struct scsi_transport_template;
-struct fc_transport_attrs {
+
+/*
+ * FC Port definitions - Following FC HBAAPI guidelines
+ *
+ * Note: Not all binary values for the different fields match HBAAPI.
+ * Instead, we use densely packed ordinal values or enums.
+ * We get away with this as we never present the actual binary values
+ * externally. For sysfs, we always present the string that describes
+ * the value. Thus, an admin doesn't need a magic HBAAPI decoder ring
+ * to understand the values. The HBAAPI user-space library is free to
+ * convert the strings into the HBAAPI-specified binary values.
+ *
+ * Note: Not all HBAAPI-defined values are contained in the definitions
+ * below. Those not appropriate to an fc_host (e.g. FCP initiator) have
+ * been removed.
+ */
+
+/*
+ * fc_port_type: If you alter this, you also need to alter scsi_transport_fc.c
+ * (for the ascii descriptions).
+ */
+enum fc_port_type {
+ FC_PORTTYPE_UNKNOWN,
+ FC_PORTTYPE_OTHER,
+ FC_PORTTYPE_NOTPRESENT,
+ FC_PORTTYPE_NPORT, /* Attached to FPort */
+ FC_PORTTYPE_NLPORT, /* (Public) Loop w/ FLPort */
+ FC_PORTTYPE_LPORT, /* (Private) Loop w/o FLPort */
+ FC_PORTTYPE_PTP, /* Point to Point w/ another NPort */
+};
+
+/*
+ * fc_port_state: If you alter this, you also need to alter scsi_transport_fc.c
+ * (for the ascii descriptions).
+ */
+enum fc_port_state {
+ FC_PORTSTATE_UNKNOWN,
+ FC_PORTSTATE_ONLINE,
+ FC_PORTSTATE_OFFLINE, /* User has taken Port Offline */
+ FC_PORTSTATE_BYPASSED,
+ FC_PORTSTATE_DIAGNOSTICS,
+ FC_PORTSTATE_LINKDOWN,
+ FC_PORTSTATE_ERROR,
+ FC_PORTSTATE_LOOPBACK,
+};
+
+
+/*
+ * FC Classes of Service
+ * Note: values are not enumerated, as they can be "or'd" together
+ * for reporting (e.g. report supported_classes). If you alter this list,
+ * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
+ */
+#define FC_COS_UNSPECIFIED 0
+#define FC_COS_CLASS1 2
+#define FC_COS_CLASS2 4
+#define FC_COS_CLASS3 8
+#define FC_COS_CLASS4 0x10
+#define FC_COS_CLASS6 0x40
+
+/*
+ * FC Port Speeds
+ * Note: values are not enumerated, as they can be "or'd" together
+ * for reporting (e.g. report supported_speeds). If you alter this list,
+ * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
+ */
+#define FC_PORTSPEED_UNKNOWN 0 /* Unknown - transceiver
+ incapable of reporting */
+#define FC_PORTSPEED_1GBIT 1
+#define FC_PORTSPEED_2GBIT 2
+#define FC_PORTSPEED_10GBIT 4
+#define FC_PORTSPEED_4GBIT 8
+#define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */
+
+/*
+ * fc_tgtid_binding_type: If you alter this, you also need to alter
+ * scsi_transport_fc.c (for the ascii descriptions).
+ */
+enum fc_tgtid_binding_type {
+ FC_TGTID_BIND_BY_WWPN,
+ FC_TGTID_BIND_BY_WWNN,
+ FC_TGTID_BIND_BY_ID,
+};
+
+
+
+/*
+ * FC Remote Port (Target) Attributes
+ */
+
+struct fc_starget_attrs { /* aka fc_target_attrs */
int port_id;
- uint64_t node_name;
- uint64_t port_name;
+ u64 node_name;
+ u64 port_name;
+ u32 dev_loss_tmo; /* Remote Port loss timeout in seconds. */
+ struct work_struct dev_loss_work;
};
-/* accessor functions */
-#define fc_port_id(x) (((struct fc_transport_attrs *)&(x)->transport_data)->port_id)
-#define fc_node_name(x) (((struct fc_transport_attrs *)&(x)->transport_data)->node_name)
-#define fc_port_name(x) (((struct fc_transport_attrs *)&(x)->transport_data)->port_name)
+#define fc_starget_port_id(x) \
+ (((struct fc_starget_attrs *)&(x)->starget_data)->port_id)
+#define fc_starget_node_name(x) \
+ (((struct fc_starget_attrs *)&(x)->starget_data)->node_name)
+#define fc_starget_port_name(x) \
+ (((struct fc_starget_attrs *)&(x)->starget_data)->port_name)
+#define fc_starget_dev_loss_tmo(x) \
+ (((struct fc_starget_attrs *)&(x)->starget_data)->dev_loss_tmo)
+#define fc_starget_dev_loss_work(x) \
+ (((struct fc_starget_attrs *)&(x)->starget_data)->dev_loss_work)
+
+
+/*
+ * FC Local Port (Host) Statistics
+ */
+
+/* FC Statistics - Following FC HBAAPI v2.0 guidelines */
+struct fc_host_statistics {
+ /* port statistics */
+ u64 seconds_since_last_reset;
+ u64 tx_frames;
+ u64 tx_words;
+ u64 rx_frames;
+ u64 rx_words;
+ u64 lip_count;
+ u64 nos_count;
+ u64 error_frames;
+ u64 dumped_frames;
+ u64 link_failure_count;
+ u64 loss_of_sync_count;
+ u64 loss_of_signal_count;
+ u64 prim_seq_protocol_err_count;
+ u64 invalid_tx_word_count;
+ u64 invalid_crc_count;
+
+ /* fc4 statistics (only FCP supported currently) */
+ u64 fcp_input_requests;
+ u64 fcp_output_requests;
+ u64 fcp_control_requests;
+ u64 fcp_input_megabytes;
+ u64 fcp_output_megabytes;
+};
+
+
+/*
+ * FC Local Port (Host) Attributes
+ *
+ * Attributes are based on HBAAPI V2.0 definitions.
+ * Note: OSDeviceName is determined by user-space library
+ *
+ * Fixed attributes are not expected to change. The driver is
+ * expected to set these values after successfully calling scsi_add_host().
+ * The transport fully manages all get functions w/o driver interaction.
+ *
+ * Dynamic attributes are expected to change. The driver participates
+ * in all get/set operations via functions provided by the driver.
+ *
+ * Private attributes are transport-managed values. They are fully
+ * managed by the transport w/o driver interaction.
+ */
+
+#define FC_FC4_LIST_SIZE 32
+#define FC_SYMBOLIC_NAME_SIZE 256
+#define FC_VERSION_STRING_SIZE 64
+#define FC_SERIAL_NUMBER_SIZE 80
+
+struct fc_host_attrs {
+ /* Fixed Attributes */
+ u64 node_name;
+ u64 port_name;
+ u32 supported_classes;
+ u8 supported_fc4s[FC_FC4_LIST_SIZE];
+ char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
+ u32 supported_speeds;
+ u32 maxframe_size;
+ char hardware_version[FC_VERSION_STRING_SIZE];
+ char firmware_version[FC_VERSION_STRING_SIZE];
+ char serial_number[FC_SERIAL_NUMBER_SIZE];
+ char opt_rom_version[FC_VERSION_STRING_SIZE];
+ char driver_version[FC_VERSION_STRING_SIZE];
+
+ /* Dynamic Attributes */
+ u32 port_id;
+ enum fc_port_type port_type;
+ enum fc_port_state port_state;
+ u8 active_fc4s[FC_FC4_LIST_SIZE];
+ u32 speed;
+ u64 fabric_name;
+ u32 link_down_tmo; /* Link Down timeout in seconds. */
+
+ /* Private (Transport-managed) Attributes */
+ enum fc_tgtid_binding_type tgtid_bind_type;
+
+ /* internal data */
+ struct work_struct link_down_work;
+};
+
+#define fc_host_node_name(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->node_name)
+#define fc_host_port_name(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->port_name)
+#define fc_host_supported_classes(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
+#define fc_host_supported_fc4s(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
+#define fc_host_symbolic_name(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
+#define fc_host_supported_speeds(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
+#define fc_host_maxframe_size(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->maxframe_size)
+#define fc_host_hardware_version(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->hardware_version)
+#define fc_host_firmware_version(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->firmware_version)
+#define fc_host_serial_number(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->serial_number)
+#define fc_host_opt_rom_version(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->opt_rom_version)
+#define fc_host_driver_version(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->driver_version)
+#define fc_host_port_id(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->port_id)
+#define fc_host_port_type(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->port_type)
+#define fc_host_port_state(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->port_state)
+#define fc_host_active_fc4s(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->active_fc4s)
+#define fc_host_speed(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->speed)
+#define fc_host_fabric_name(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
+#define fc_host_link_down_tmo(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->link_down_tmo)
+#define fc_host_tgtid_bind_type(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
+#define fc_host_link_down_work(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->link_down_work)
+
/* The functions by which the transport class and the driver communicate */
struct fc_function_template {
- void (*get_port_id)(struct scsi_device *);
- void (*get_node_name)(struct scsi_device *);
- void (*get_port_name)(struct scsi_device *);
- /* The driver sets these to tell the transport class it
+ void (*get_starget_port_id)(struct scsi_target *);
+ void (*get_starget_node_name)(struct scsi_target *);
+ void (*get_starget_port_name)(struct scsi_target *);
+ void (*get_starget_dev_loss_tmo)(struct scsi_target *);
+ void (*set_starget_dev_loss_tmo)(struct scsi_target *, u32);
+
+ void (*get_host_port_id)(struct Scsi_Host *);
+ void (*get_host_port_type)(struct Scsi_Host *);
+ void (*get_host_port_state)(struct Scsi_Host *);
+ void (*get_host_active_fc4s)(struct Scsi_Host *);
+ void (*get_host_speed)(struct Scsi_Host *);
+ void (*get_host_fabric_name)(struct Scsi_Host *);
+ void (*get_host_link_down_tmo)(struct Scsi_Host *);
+ void (*set_host_link_down_tmo)(struct Scsi_Host *, u32);
+
+ struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
+ void (*reset_fc_host_stats)(struct Scsi_Host *);
+
+ /*
+ * The driver sets these to tell the transport class it
* wants the attributes displayed in sysfs. If the show_ flag
* is not set, the attribute will be private to the transport
- * class */
- unsigned long show_port_id:1;
- unsigned long show_node_name:1;
- unsigned long show_port_name:1;
- /* Private Attributes */
+ * class
+ */
+ unsigned long show_starget_port_id:1;
+ unsigned long show_starget_node_name:1;
+ unsigned long show_starget_port_name:1;
+ unsigned long show_starget_dev_loss_tmo:1;
+
+ /* host fixed attributes */
+ unsigned long show_host_node_name:1;
+ unsigned long show_host_port_name:1;
+ unsigned long show_host_supported_classes:1;
+ unsigned long show_host_supported_fc4s:1;
+ unsigned long show_host_symbolic_name:1;
+ unsigned long show_host_supported_speeds:1;
+ unsigned long show_host_maxframe_size:1;
+ unsigned long show_host_hardware_version:1;
+ unsigned long show_host_firmware_version:1;
+ unsigned long show_host_serial_number:1;
+ unsigned long show_host_opt_rom_version:1;
+ unsigned long show_host_driver_version:1;
+ /* host dynamic attributes */
+ unsigned long show_host_port_id:1;
+ unsigned long show_host_port_type:1;
+ unsigned long show_host_port_state:1;
+ unsigned long show_host_active_fc4s:1;
+ unsigned long show_host_speed:1;
+ unsigned long show_host_fabric_name:1;
+ unsigned long show_host_link_down_tmo:1;
};
+
struct scsi_transport_template *fc_attach_transport(struct fc_function_template *);
void fc_release_transport(struct scsi_transport_template *);
+int fc_target_block(struct scsi_target *starget);
+void fc_target_unblock(struct scsi_target *starget);
+int fc_host_block(struct Scsi_Host *shost);
+void fc_host_unblock(struct Scsi_Host *shost);
#endif /* SCSI_TRANSPORT_FC_H */
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