diff options
Diffstat (limited to 'drivers/ieee1394/sbp2.h')
| -rw-r--r-- | drivers/ieee1394/sbp2.h | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h deleted file mode 100644 index b22ce1aa8fe..00000000000 --- a/drivers/ieee1394/sbp2.h +++ /dev/null @@ -1,405 +0,0 @@ -/* - * sbp2.h - Defines and prototypes for sbp2.c - * - * Copyright (C) 2000 James Goodwin, Filanet Corporation (www.filanet.com) - * jamesg@filanet.com - * - * 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 SBP2_H -#define SBP2_H - -#define SBP2_DEVICE_NAME "sbp2" - -/* - * SBP2 specific structures and defines - */ - -#define ORB_DIRECTION_WRITE_TO_MEDIA 0x0 -#define ORB_DIRECTION_READ_FROM_MEDIA 0x1 -#define ORB_DIRECTION_NO_DATA_TRANSFER 0x2 - -#define ORB_SET_NULL_PTR(value) ((value & 0x1) << 31) -#define ORB_SET_NOTIFY(value) ((value & 0x1) << 31) -#define ORB_SET_RQ_FMT(value) ((value & 0x3) << 29) /* unused ? */ -#define ORB_SET_NODE_ID(value) ((value & 0xffff) << 16) -#define ORB_SET_STATUS_FIFO_HI(value, id) (value >> 32 | ORB_SET_NODE_ID(id)) -#define ORB_SET_STATUS_FIFO_LO(value) (value & 0xffffffff) -#define ORB_SET_DATA_SIZE(value) (value & 0xffff) -#define ORB_SET_PAGE_SIZE(value) ((value & 0x7) << 16) -#define ORB_SET_PAGE_TABLE_PRESENT(value) ((value & 0x1) << 19) -#define ORB_SET_MAX_PAYLOAD(value) ((value & 0xf) << 20) -#define ORB_SET_SPEED(value) ((value & 0x7) << 24) -#define ORB_SET_DIRECTION(value) ((value & 0x1) << 27) - -struct sbp2_command_orb { - volatile u32 next_ORB_hi; - volatile u32 next_ORB_lo; - u32 data_descriptor_hi; - u32 data_descriptor_lo; - u32 misc; - u8 cdb[12]; -} __attribute__((packed)); - -#define SBP2_LOGIN_REQUEST 0x0 -#define SBP2_QUERY_LOGINS_REQUEST 0x1 -#define SBP2_RECONNECT_REQUEST 0x3 -#define SBP2_SET_PASSWORD_REQUEST 0x4 -#define SBP2_LOGOUT_REQUEST 0x7 -#define SBP2_ABORT_TASK_REQUEST 0xb -#define SBP2_ABORT_TASK_SET 0xc -#define SBP2_LOGICAL_UNIT_RESET 0xe -#define SBP2_TARGET_RESET_REQUEST 0xf - -#define ORB_SET_LUN(value) (value & 0xffff) -#define ORB_SET_FUNCTION(value) ((value & 0xf) << 16) -#define ORB_SET_RECONNECT(value) ((value & 0xf) << 20) -#define ORB_SET_EXCLUSIVE(value) ((value & 0x1) << 28) -#define ORB_SET_LOGIN_RESP_LENGTH(value) (value & 0xffff) -#define ORB_SET_PASSWD_LENGTH(value) ((value & 0xffff) << 16) - -struct sbp2_login_orb { - u32 password_hi; - u32 password_lo; - u32 login_response_hi; - u32 login_response_lo; - u32 lun_misc; - u32 passwd_resp_lengths; - u32 status_fifo_hi; - u32 status_fifo_lo; -} __attribute__((packed)); - -#define RESPONSE_GET_LOGIN_ID(value) (value & 0xffff) -#define RESPONSE_GET_LENGTH(value) ((value >> 16) & 0xffff) -#define RESPONSE_GET_RECONNECT_HOLD(value) (value & 0xffff) - -struct sbp2_login_response { - u32 length_login_ID; - u32 command_block_agent_hi; - u32 command_block_agent_lo; - u32 reconnect_hold; -} __attribute__((packed)); - -#define ORB_SET_LOGIN_ID(value) (value & 0xffff) - -#define ORB_SET_QUERY_LOGINS_RESP_LENGTH(value) (value & 0xffff) - -struct sbp2_query_logins_orb { - u32 reserved1; - u32 reserved2; - u32 query_response_hi; - u32 query_response_lo; - u32 lun_misc; - u32 reserved_resp_length; - u32 status_fifo_hi; - u32 status_fifo_lo; -} __attribute__((packed)); - -#define RESPONSE_GET_MAX_LOGINS(value) (value & 0xffff) -#define RESPONSE_GET_ACTIVE_LOGINS(value) ((RESPONSE_GET_LENGTH(value) - 4) / 12) - -struct sbp2_query_logins_response { - u32 length_max_logins; - u32 misc_IDs; - u32 initiator_misc_hi; - u32 initiator_misc_lo; -} __attribute__((packed)); - -struct sbp2_reconnect_orb { - u32 reserved1; - u32 reserved2; - u32 reserved3; - u32 reserved4; - u32 login_ID_misc; - u32 reserved5; - u32 status_fifo_hi; - u32 status_fifo_lo; -} __attribute__((packed)); - -struct sbp2_logout_orb { - u32 reserved1; - u32 reserved2; - u32 reserved3; - u32 reserved4; - u32 login_ID_misc; - u32 reserved5; - u32 status_fifo_hi; - u32 status_fifo_lo; -} __attribute__((packed)); - -#define PAGE_TABLE_SET_SEGMENT_BASE_HI(value) (value & 0xffff) -#define PAGE_TABLE_SET_SEGMENT_LENGTH(value) ((value & 0xffff) << 16) - -struct sbp2_unrestricted_page_table { - u32 length_segment_base_hi; - u32 segment_base_lo; -} __attribute__((packed)); - -#define RESP_STATUS_REQUEST_COMPLETE 0x0 -#define RESP_STATUS_TRANSPORT_FAILURE 0x1 -#define RESP_STATUS_ILLEGAL_REQUEST 0x2 -#define RESP_STATUS_VENDOR_DEPENDENT 0x3 - -#define SBP2_STATUS_NO_ADDITIONAL_INFO 0x0 -#define SBP2_STATUS_REQ_TYPE_NOT_SUPPORTED 0x1 -#define SBP2_STATUS_SPEED_NOT_SUPPORTED 0x2 -#define SBP2_STATUS_PAGE_SIZE_NOT_SUPPORTED 0x3 -#define SBP2_STATUS_ACCESS_DENIED 0x4 -#define SBP2_STATUS_LU_NOT_SUPPORTED 0x5 -#define SBP2_STATUS_MAX_PAYLOAD_TOO_SMALL 0x6 -#define SBP2_STATUS_RESOURCES_UNAVAILABLE 0x8 -#define SBP2_STATUS_FUNCTION_REJECTED 0x9 -#define SBP2_STATUS_LOGIN_ID_NOT_RECOGNIZED 0xa -#define SBP2_STATUS_DUMMY_ORB_COMPLETED 0xb -#define SBP2_STATUS_REQUEST_ABORTED 0xc -#define SBP2_STATUS_UNSPECIFIED_ERROR 0xff - -#define SFMT_CURRENT_ERROR 0x0 -#define SFMT_DEFERRED_ERROR 0x1 -#define SFMT_VENDOR_DEPENDENT_STATUS 0x3 - -#define SBP2_SCSI_STATUS_GOOD 0x0 -#define SBP2_SCSI_STATUS_CHECK_CONDITION 0x2 -#define SBP2_SCSI_STATUS_CONDITION_MET 0x4 -#define SBP2_SCSI_STATUS_BUSY 0x8 -#define SBP2_SCSI_STATUS_RESERVATION_CONFLICT 0x18 -#define SBP2_SCSI_STATUS_COMMAND_TERMINATED 0x22 - -#define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff - -#define STATUS_GET_ORB_OFFSET_HI(value) (value & 0xffff) -#define STATUS_GET_SBP_STATUS(value) ((value >> 16) & 0xff) -#define STATUS_GET_LENGTH(value) ((value >> 24) & 0x7) -#define STATUS_GET_DEAD_BIT(value) ((value >> 27) & 0x1) -#define STATUS_GET_RESP(value) ((value >> 28) & 0x3) -#define STATUS_GET_SRC(value) ((value >> 30) & 0x3) - -struct sbp2_status_block { - u32 ORB_offset_hi_misc; - u32 ORB_offset_lo; - u8 command_set_dependent[24]; -} __attribute__((packed)); - -/* - * Miscellaneous SBP2 related config rom defines - */ - -#define SBP2_UNIT_DIRECTORY_OFFSET_KEY 0xd1 -#define SBP2_CSR_OFFSET_KEY 0x54 -#define SBP2_UNIT_SPEC_ID_KEY 0x12 -#define SBP2_UNIT_SW_VERSION_KEY 0x13 -#define SBP2_COMMAND_SET_SPEC_ID_KEY 0x38 -#define SBP2_COMMAND_SET_KEY 0x39 -#define SBP2_UNIT_CHARACTERISTICS_KEY 0x3a -#define SBP2_DEVICE_TYPE_AND_LUN_KEY 0x14 -#define SBP2_FIRMWARE_REVISION_KEY 0x3c - -#define SBP2_AGENT_STATE_OFFSET 0x00ULL -#define SBP2_AGENT_RESET_OFFSET 0x04ULL -#define SBP2_ORB_POINTER_OFFSET 0x08ULL -#define SBP2_DOORBELL_OFFSET 0x10ULL -#define SBP2_UNSOLICITED_STATUS_ENABLE_OFFSET 0x14ULL -#define SBP2_UNSOLICITED_STATUS_VALUE 0xf - -#define SBP2_BUSY_TIMEOUT_ADDRESS 0xfffff0000210ULL -#define SBP2_BUSY_TIMEOUT_VALUE 0xf - -#define SBP2_AGENT_RESET_DATA 0xf - -/* - * Unit spec id and sw version entry for SBP-2 devices - */ - -#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e -#define SBP2_SW_VERSION_ENTRY 0x00010483 - -/* - * SCSI specific stuff - */ - -#define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000 -#define SBP2_MAX_SECTORS 255 /* Max sectors supported */ -#define SBP2_MAX_CMDS 8 /* This should be safe */ - -/* Flags for detected oddities and brokeness */ -#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1 -#define SBP2_WORKAROUND_INQUIRY_36 0x2 -#define SBP2_WORKAROUND_MODE_SENSE_8 0x4 -#define SBP2_WORKAROUND_FIX_CAPACITY 0x8 -#define SBP2_WORKAROUND_OVERRIDE 0x100 - -/* This is the two dma types we use for cmd_dma below */ -enum cmd_dma_types { - CMD_DMA_NONE, - CMD_DMA_PAGE, - CMD_DMA_SINGLE -}; - -/* - * Encapsulates all the info necessary for an outstanding command. - */ -struct sbp2_command_info { - - struct list_head list; - struct sbp2_command_orb command_orb ____cacheline_aligned; - dma_addr_t command_orb_dma ____cacheline_aligned; - struct scsi_cmnd *Current_SCpnt; - void (*Current_done)(struct scsi_cmnd *); - - /* Also need s/g structure for each sbp2 command */ - struct sbp2_unrestricted_page_table scatter_gather_element[SG_ALL] ____cacheline_aligned; - dma_addr_t sge_dma ____cacheline_aligned; - void *sge_buffer; - dma_addr_t cmd_dma; - enum cmd_dma_types dma_type; - unsigned long dma_size; - int dma_dir; - -}; - -struct sbp2scsi_host_info; - -/* - * Information needed on a per scsi id basis (one for each sbp2 device) - */ -struct scsi_id_instance_data { - /* - * Various sbp2 specific structures - */ - struct sbp2_command_orb *last_orb; - dma_addr_t last_orb_dma; - struct sbp2_login_orb *login_orb; - dma_addr_t login_orb_dma; - struct sbp2_login_response *login_response; - dma_addr_t login_response_dma; - struct sbp2_query_logins_orb *query_logins_orb; - dma_addr_t query_logins_orb_dma; - struct sbp2_query_logins_response *query_logins_response; - dma_addr_t query_logins_response_dma; - struct sbp2_reconnect_orb *reconnect_orb; - dma_addr_t reconnect_orb_dma; - struct sbp2_logout_orb *logout_orb; - dma_addr_t logout_orb_dma; - struct sbp2_status_block status_block; - - /* - * Stuff we need to know about the sbp2 device itself - */ - u64 sbp2_management_agent_addr; - u64 sbp2_command_block_agent_addr; - u32 speed_code; - u32 max_payload_size; - - /* - * Values pulled from the device's unit directory - */ - u32 sbp2_command_set_spec_id; - u32 sbp2_command_set; - u32 sbp2_unit_characteristics; - u32 sbp2_lun; - u32 sbp2_firmware_revision; - - /* - * Address for the device to write status blocks to - */ - u64 status_fifo_addr; - - /* - * Variable used for logins, reconnects, logouts, query logins - */ - atomic_t sbp2_login_complete; - - /* - * Pool of command orbs, so we can have more than overlapped command per id - */ - spinlock_t sbp2_command_orb_lock; - struct list_head sbp2_command_orb_inuse; - struct list_head sbp2_command_orb_completed; - - struct list_head scsi_list; - - /* Node entry, as retrieved from NodeMgr entries */ - struct node_entry *ne; - struct unit_directory *ud; - - /* A backlink to our host_info */ - struct sbp2scsi_host_info *hi; - - /* SCSI related pointers */ - struct scsi_device *sdev; - struct Scsi_Host *scsi_host; - - /* Device specific workarounds/brokeness */ - unsigned workarounds; -}; - -/* Sbp2 host data structure (one per IEEE1394 host) */ -struct sbp2scsi_host_info { - struct hpsb_host *host; /* IEEE1394 host */ - struct list_head scsi_ids; /* List of scsi ids on this host */ -}; - -/* - * Function prototypes - */ - -/* - * Various utility prototypes - */ -static int sbp2util_create_command_orb_pool(struct scsi_id_instance_data *scsi_id); -static void sbp2util_remove_command_orb_pool(struct scsi_id_instance_data *scsi_id); -static struct sbp2_command_info *sbp2util_find_command_for_orb(struct scsi_id_instance_data *scsi_id, dma_addr_t orb); -static struct sbp2_command_info *sbp2util_find_command_for_SCpnt(struct scsi_id_instance_data *scsi_id, void *SCpnt); -static struct sbp2_command_info *sbp2util_allocate_command_orb(struct scsi_id_instance_data *scsi_id, - struct scsi_cmnd *Current_SCpnt, - void (*Current_done)(struct scsi_cmnd *)); -static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id, - struct sbp2_command_info *command); - - -static int sbp2_start_device(struct scsi_id_instance_data *scsi_id); -static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id); - -#ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA -static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data, - u64 addr, size_t length, u16 flags); -static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data, - u64 addr, size_t length, u16 flags); -#endif - -/* - * SBP-2 protocol related prototypes - */ -static int sbp2_query_logins(struct scsi_id_instance_data *scsi_id); -static int sbp2_login_device(struct scsi_id_instance_data *scsi_id); -static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id); -static int sbp2_logout_device(struct scsi_id_instance_data *scsi_id); -static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid, - quadlet_t *data, u64 addr, size_t length, u16 flags); -static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait); -static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id, - struct sbp2_command_info *command); -static int sbp2_send_command(struct scsi_id_instance_data *scsi_id, - struct scsi_cmnd *SCpnt, - void (*done)(struct scsi_cmnd *)); -static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, - unchar *sense_data); -static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id, - struct unit_directory *ud); -static int sbp2_set_busy_timeout(struct scsi_id_instance_data *scsi_id); -static int sbp2_max_speed_and_size(struct scsi_id_instance_data *scsi_id); - -#endif /* SBP2_H */ |