| /* |
| * FiberChannel transport specific attributes exported to sysfs. |
| * |
| * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. |
| * |
| * 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. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #ifndef SCSI_TRANSPORT_FC_H |
| #define SCSI_TRANSPORT_FC_H |
| |
| #include <linux/config.h> |
| |
| struct scsi_transport_template; |
| |
| |
| /* |
| * 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; |
| u64 node_name; |
| u64 port_name; |
| u32 dev_loss_tmo; /* Remote Port loss timeout in seconds. */ |
| struct work_struct dev_loss_work; |
| }; |
| |
| #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_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_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 */ |