qlogicpti.h
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- /* qlogicpti.h: Performance Technologies QlogicISP sbus card defines.
- *
- * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
- */
- #ifndef _QLOGICPTI_H
- #define _QLOGICPTI_H
- /* Qlogic/SBUS controller registers. */
- #define SBUS_CFG1 0x006UL
- #define SBUS_CTRL 0x008UL
- #define SBUS_STAT 0x00aUL
- #define SBUS_SEMAPHORE 0x00cUL
- #define CMD_DMA_CTRL 0x022UL
- #define DATA_DMA_CTRL 0x042UL
- #define MBOX0 0x080UL
- #define MBOX1 0x082UL
- #define MBOX2 0x084UL
- #define MBOX3 0x086UL
- #define MBOX4 0x088UL
- #define MBOX5 0x08aUL
- #define CPU_CMD 0x214UL
- #define CPU_ORIDE 0x224UL
- #define CPU_PCTRL 0x272UL
- #define CPU_PDIFF 0x276UL
- #define RISC_PSR 0x420UL
- #define RISC_MTREG 0x42EUL
- #define HCCTRL 0x440UL
- /* SCSI parameters for this driver. */
- #define MAX_TARGETS 16
- #define MAX_LUNS 8
- /* With the qlogic interface, every queue slot can hold a SCSI
- * command with up to 4 scatter/gather entries. If we need more
- * than 4 entries, continuation entries can be used that hold
- * another 7 entries each. Unlike for other drivers, this means
- * that the maximum number of scatter/gather entries we can
- * support at any given time is a function of the number of queue
- * slots available. That is, host->can_queue and host->sg_tablesize
- * are dynamic and _not_ independent. This all works fine because
- * requests are queued serially and the scatter/gather limit is
- * determined for each queue request anew.
- */
- #define QLOGICPTI_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
- #define QLOGICPTI_MAX_SG(ql) (4 + ((ql) > 0) ? 7*((ql) - 1) : 0)
- #ifndef NULL
- #define NULL (0)
- #endif
- int qlogicpti_detect(Scsi_Host_Template *);
- int qlogicpti_release(struct Scsi_Host *);
- const char * qlogicpti_info(struct Scsi_Host *);
- int qlogicpti_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
- int qlogicpti_queuecommand_slow(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
- int qlogicpti_abort(Scsi_Cmnd *);
- int qlogicpti_reset(Scsi_Cmnd *, unsigned int);
- /* mailbox command complete status codes */
- #define MBOX_COMMAND_COMPLETE 0x4000
- #define INVALID_COMMAND 0x4001
- #define HOST_INTERFACE_ERROR 0x4002
- #define TEST_FAILED 0x4003
- #define COMMAND_ERROR 0x4005
- #define COMMAND_PARAM_ERROR 0x4006
- /* async event status codes */
- #define ASYNC_SCSI_BUS_RESET 0x8001
- #define SYSTEM_ERROR 0x8002
- #define REQUEST_TRANSFER_ERROR 0x8003
- #define RESPONSE_TRANSFER_ERROR 0x8004
- #define REQUEST_QUEUE_WAKEUP 0x8005
- #define EXECUTION_TIMEOUT_RESET 0x8006
- /* Am I fucking pedantic or what? */
- struct Entry_header {
- #ifdef __BIG_ENDIAN
- u8 entry_cnt;
- u8 entry_type;
- u8 flags;
- u8 sys_def_1;
- #else /* __LITTLE_ENDIAN */
- u8 entry_type;
- u8 entry_cnt;
- u8 sys_def_1;
- u8 flags;
- #endif
- };
- /* entry header type commands */
- #define ENTRY_COMMAND 1
- #define ENTRY_CONTINUATION 2
- #define ENTRY_STATUS 3
- #define ENTRY_MARKER 4
- #define ENTRY_EXTENDED_COMMAND 5
- /* entry header flag definitions */
- #define EFLAG_CONTINUATION 1
- #define EFLAG_BUSY 2
- #define EFLAG_BAD_HEADER 4
- #define EFLAG_BAD_PAYLOAD 8
- struct dataseg {
- u32 d_base;
- u32 d_count;
- };
- struct Command_Entry {
- struct Entry_header hdr;
- u32 handle;
- #ifdef __BIG_ENDIAN
- u8 target_id;
- u8 target_lun;
- #else /* __LITTLE_ENDIAN */
- u8 target_lun;
- u8 target_id;
- #endif
- u16 cdb_length;
- u16 control_flags;
- u16 rsvd;
- u16 time_out;
- u16 segment_cnt;
- u8 cdb[12];
- struct dataseg dataseg[4];
- };
- /* command entry control flag definitions */
- #define CFLAG_NODISC 0x01
- #define CFLAG_HEAD_TAG 0x02
- #define CFLAG_ORDERED_TAG 0x04
- #define CFLAG_SIMPLE_TAG 0x08
- #define CFLAG_TAR_RTN 0x10
- #define CFLAG_READ 0x20
- #define CFLAG_WRITE 0x40
- struct Ext_Command_Entry {
- struct Entry_header hdr;
- u32 handle;
- #ifdef __BIG_ENDIAN
- u8 target_id;
- u8 target_lun;
- #else /* __LITTLE_ENDIAN */
- u8 target_lun;
- u8 target_id;
- #endif
- u16 cdb_length;
- u16 control_flags;
- u16 rsvd;
- u16 time_out;
- u16 segment_cnt;
- u8 cdb[44];
- };
- struct Continuation_Entry {
- struct Entry_header hdr;
- u32 reserved;
- struct dataseg dataseg[7];
- };
- struct Marker_Entry {
- struct Entry_header hdr;
- u32 reserved;
- #ifdef __BIG_ENDIAN
- u8 target_id;
- u8 target_lun;
- #else /* __LITTLE_ENDIAN */
- u8 target_lun;
- u8 target_id;
- #endif
- #ifdef __BIG_ENDIAN
- u8 rsvd;
- u8 modifier;
- #else /* __LITTLE_ENDIAN */
- u8 modifier;
- u8 rsvd;
- #endif
- u8 rsvds[52];
- };
- /* marker entry modifier definitions */
- #define SYNC_DEVICE 0
- #define SYNC_TARGET 1
- #define SYNC_ALL 2
- struct Status_Entry {
- struct Entry_header hdr;
- u32 handle;
- u16 scsi_status;
- u16 completion_status;
- u16 state_flags;
- u16 status_flags;
- u16 time;
- u16 req_sense_len;
- u32 residual;
- u8 rsvd[8];
- u8 req_sense_data[32];
- };
- /* status entry completion status definitions */
- #define CS_COMPLETE 0x0000
- #define CS_INCOMPLETE 0x0001
- #define CS_DMA_ERROR 0x0002
- #define CS_TRANSPORT_ERROR 0x0003
- #define CS_RESET_OCCURRED 0x0004
- #define CS_ABORTED 0x0005
- #define CS_TIMEOUT 0x0006
- #define CS_DATA_OVERRUN 0x0007
- #define CS_COMMAND_OVERRUN 0x0008
- #define CS_STATUS_OVERRUN 0x0009
- #define CS_BAD_MESSAGE 0x000a
- #define CS_NO_MESSAGE_OUT 0x000b
- #define CS_EXT_ID_FAILED 0x000c
- #define CS_IDE_MSG_FAILED 0x000d
- #define CS_ABORT_MSG_FAILED 0x000e
- #define CS_REJECT_MSG_FAILED 0x000f
- #define CS_NOP_MSG_FAILED 0x0010
- #define CS_PARITY_ERROR_MSG_FAILED 0x0011
- #define CS_DEVICE_RESET_MSG_FAILED 0x0012
- #define CS_ID_MSG_FAILED 0x0013
- #define CS_UNEXP_BUS_FREE 0x0014
- #define CS_DATA_UNDERRUN 0x0015
- #define CS_BUS_RESET 0x001c
- /* status entry state flag definitions */
- #define SF_GOT_BUS 0x0100
- #define SF_GOT_TARGET 0x0200
- #define SF_SENT_CDB 0x0400
- #define SF_TRANSFERRED_DATA 0x0800
- #define SF_GOT_STATUS 0x1000
- #define SF_GOT_SENSE 0x2000
- /* status entry status flag definitions */
- #define STF_DISCONNECT 0x0001
- #define STF_SYNCHRONOUS 0x0002
- #define STF_PARITY_ERROR 0x0004
- #define STF_BUS_RESET 0x0008
- #define STF_DEVICE_RESET 0x0010
- #define STF_ABORTED 0x0020
- #define STF_TIMEOUT 0x0040
- #define STF_NEGOTIATION 0x0080
- /* mailbox commands */
- #define MBOX_NO_OP 0x0000
- #define MBOX_LOAD_RAM 0x0001
- #define MBOX_EXEC_FIRMWARE 0x0002
- #define MBOX_DUMP_RAM 0x0003
- #define MBOX_WRITE_RAM_WORD 0x0004
- #define MBOX_READ_RAM_WORD 0x0005
- #define MBOX_MAILBOX_REG_TEST 0x0006
- #define MBOX_VERIFY_CHECKSUM 0x0007
- #define MBOX_ABOUT_FIRMWARE 0x0008
- #define MBOX_CHECK_FIRMWARE 0x000e
- #define MBOX_INIT_REQ_QUEUE 0x0010
- #define MBOX_INIT_RES_QUEUE 0x0011
- #define MBOX_EXECUTE_IOCB 0x0012
- #define MBOX_WAKE_UP 0x0013
- #define MBOX_STOP_FIRMWARE 0x0014
- #define MBOX_ABORT 0x0015
- #define MBOX_ABORT_DEVICE 0x0016
- #define MBOX_ABORT_TARGET 0x0017
- #define MBOX_BUS_RESET 0x0018
- #define MBOX_STOP_QUEUE 0x0019
- #define MBOX_START_QUEUE 0x001a
- #define MBOX_SINGLE_STEP_QUEUE 0x001b
- #define MBOX_ABORT_QUEUE 0x001c
- #define MBOX_GET_DEV_QUEUE_STATUS 0x001d
- #define MBOX_GET_FIRMWARE_STATUS 0x001f
- #define MBOX_GET_INIT_SCSI_ID 0x0020
- #define MBOX_GET_SELECT_TIMEOUT 0x0021
- #define MBOX_GET_RETRY_COUNT 0x0022
- #define MBOX_GET_TAG_AGE_LIMIT 0x0023
- #define MBOX_GET_CLOCK_RATE 0x0024
- #define MBOX_GET_ACT_NEG_STATE 0x0025
- #define MBOX_GET_ASYNC_DATA_SETUP_TIME 0x0026
- #define MBOX_GET_SBUS_PARAMS 0x0027
- #define MBOX_GET_TARGET_PARAMS 0x0028
- #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
- #define MBOX_SET_INIT_SCSI_ID 0x0030
- #define MBOX_SET_SELECT_TIMEOUT 0x0031
- #define MBOX_SET_RETRY_COUNT 0x0032
- #define MBOX_SET_TAG_AGE_LIMIT 0x0033
- #define MBOX_SET_CLOCK_RATE 0x0034
- #define MBOX_SET_ACTIVE_NEG_STATE 0x0035
- #define MBOX_SET_ASYNC_DATA_SETUP_TIME 0x0036
- #define MBOX_SET_SBUS_CONTROL_PARAMS 0x0037
- #define MBOX_SET_TARGET_PARAMS 0x0038
- #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
- struct host_param {
- u_short initiator_scsi_id;
- u_short bus_reset_delay;
- u_short retry_count;
- u_short retry_delay;
- u_short async_data_setup_time;
- u_short req_ack_active_negation;
- u_short data_line_active_negation;
- u_short data_dma_burst_enable;
- u_short command_dma_burst_enable;
- u_short tag_aging;
- u_short selection_timeout;
- u_short max_queue_depth;
- };
- /*
- * Device Flags:
- *
- * Bit Name
- * ---------
- * 7 Disconnect Privilege
- * 6 Parity Checking
- * 5 Wide Data Transfers
- * 4 Synchronous Data Transfers
- * 3 Tagged Queuing
- * 2 Automatic Request Sense
- * 1 Stop Queue on Check Condition
- * 0 Renegotiate on Error
- */
- struct dev_param {
- u_short device_flags;
- u_short execution_throttle;
- u_short synchronous_period;
- u_short synchronous_offset;
- u_short device_enable;
- u_short reserved; /* pad */
- };
- /*
- * The result queue can be quite a bit smaller since continuation entries
- * do not show up there:
- */
- #define RES_QUEUE_LEN 255 /* Must be power of two - 1 */
- #define QUEUE_ENTRY_LEN 64
- #define NEXT_REQ_PTR(wheee) (((wheee) + 1) & QLOGICPTI_REQ_QUEUE_LEN)
- #define NEXT_RES_PTR(wheee) (((wheee) + 1) & RES_QUEUE_LEN)
- #define PREV_REQ_PTR(wheee) (((wheee) - 1) & QLOGICPTI_REQ_QUEUE_LEN)
- #define PREV_RES_PTR(wheee) (((wheee) - 1) & RES_QUEUE_LEN)
- struct pti_queue_entry {
- char __opaque[QUEUE_ENTRY_LEN];
- };
- /* Software state for the driver. */
- struct qlogicpti {
- /* These are the hot elements in the cache, so they come first. */
- spinlock_t lock; /* Driver mutex */
- unsigned long qregs; /* Adapter registers */
- struct pti_queue_entry *res_cpu; /* Ptr to RESPONSE bufs (CPU) */
- struct pti_queue_entry *req_cpu; /* Ptr to REQUEST bufs (CPU) */
- u_int req_in_ptr; /* index of next request slot */
- u_int res_out_ptr; /* index of next result slot */
- long send_marker; /* must we send a marker? */
- struct sbus_dev *sdev;
- unsigned long __pad;
- int cmd_count[MAX_TARGETS];
- unsigned long tag_ages[MAX_TARGETS];
- /* The cmd->handler is only 32-bits, so that things work even on monster
- * Ex000 sparc64 machines with >4GB of ram we just keep track of the
- * scsi command pointers here. This is essentially what Matt Jacob does. -DaveM
- */
- Scsi_Cmnd *cmd_slots[QLOGICPTI_REQ_QUEUE_LEN + 1];
- /* The rest of the elements are unimportant for performance. */
- struct qlogicpti *next;
- __u32 res_dvma; /* Ptr to RESPONSE bufs (DVMA)*/
- __u32 req_dvma; /* Ptr to REQUEST bufs (DVMA) */
- u_char fware_majrev, fware_minrev, fware_micrev;
- struct Scsi_Host *qhost;
- int qpti_id;
- int scsi_id;
- int prom_node;
- char prom_name[64];
- int irq;
- char differential, ultra, clock;
- unsigned char bursts;
- struct host_param host_param;
- struct dev_param dev_param[MAX_TARGETS];
- unsigned long sreg;
- #define SREG_TPOWER 0x80 /* State of termpwr */
- #define SREG_FUSE 0x40 /* State of on board fuse */
- #define SREG_PDISAB 0x20 /* Disable state for power on */
- #define SREG_DSENSE 0x10 /* Sense for differential */
- #define SREG_IMASK 0x0c /* Interrupt level */
- #define SREG_SPMASK 0x03 /* Mask for switch pack */
- unsigned char swsreg;
- unsigned int
- gotirq : 1, /* this instance got an irq */
- is_pti : 1, /* Non-zero if this is a PTI board. */
- sbits : 16; /* syncmode known bits */
- };
- /* How to twiddle them bits... */
- /* SBUS config register one. */
- #define SBUS_CFG1_EPAR 0x0100 /* Enable parity checking */
- #define SBUS_CFG1_FMASK 0x00f0 /* Forth code cycle mask */
- #define SBUS_CFG1_BENAB 0x0004 /* Burst dvma enable */
- #define SBUS_CFG1_B64 0x0003 /* Enable 64byte bursts */
- #define SBUS_CFG1_B32 0x0002 /* Enable 32byte bursts */
- #define SBUS_CFG1_B16 0x0001 /* Enable 16byte bursts */
- #define SBUS_CFG1_B8 0x0008 /* Enable 8byte bursts */
- /* SBUS control register */
- #define SBUS_CTRL_EDIRQ 0x0020 /* Enable Data DVMA Interrupts */
- #define SBUS_CTRL_ECIRQ 0x0010 /* Enable Command DVMA Interrupts */
- #define SBUS_CTRL_ESIRQ 0x0008 /* Enable SCSI Processor Interrupts */
- #define SBUS_CTRL_ERIRQ 0x0004 /* Enable RISC Processor Interrupts */
- #define SBUS_CTRL_GENAB 0x0002 /* Global Interrupt Enable */
- #define SBUS_CTRL_RESET 0x0001 /* Soft Reset */
- /* SBUS status register */
- #define SBUS_STAT_DINT 0x0020 /* Data DVMA IRQ pending */
- #define SBUS_STAT_CINT 0x0010 /* Command DVMA IRQ pending */
- #define SBUS_STAT_SINT 0x0008 /* SCSI Processor IRQ pending */
- #define SBUS_STAT_RINT 0x0004 /* RISC Processor IRQ pending */
- #define SBUS_STAT_GINT 0x0002 /* Global IRQ pending */
- /* SBUS semaphore register */
- #define SBUS_SEMAPHORE_STAT 0x0002 /* Semaphore status bit */
- #define SBUS_SEMAPHORE_LCK 0x0001 /* Semaphore lock bit */
- /* DVMA control register */
- #define DMA_CTRL_CSUSPEND 0x0010 /* DMA channel suspend */
- #define DMA_CTRL_CCLEAR 0x0008 /* DMA channel clear and reset */
- #define DMA_CTRL_FCLEAR 0x0004 /* DMA fifo clear */
- #define DMA_CTRL_CIRQ 0x0002 /* DMA irq clear */
- #define DMA_CTRL_DMASTART 0x0001 /* DMA transfer start */
- /* SCSI processor override register */
- #define CPU_ORIDE_ETRIG 0x8000 /* External trigger enable */
- #define CPU_ORIDE_STEP 0x4000 /* Single step mode enable */
- #define CPU_ORIDE_BKPT 0x2000 /* Breakpoint reg enable */
- #define CPU_ORIDE_PWRITE 0x1000 /* SCSI pin write enable */
- #define CPU_ORIDE_OFORCE 0x0800 /* Force outputs on */
- #define CPU_ORIDE_LBACK 0x0400 /* SCSI loopback enable */
- #define CPU_ORIDE_PTEST 0x0200 /* Parity test enable */
- #define CPU_ORIDE_TENAB 0x0100 /* SCSI pins tristate enable */
- #define CPU_ORIDE_TPINS 0x0080 /* SCSI pins enable */
- #define CPU_ORIDE_FRESET 0x0008 /* FIFO reset */
- #define CPU_ORIDE_CTERM 0x0004 /* Command terminate */
- #define CPU_ORIDE_RREG 0x0002 /* Reset SCSI processor regs */
- #define CPU_ORIDE_RMOD 0x0001 /* Reset SCSI processor module */
- /* SCSI processor commands */
- #define CPU_CMD_BRESET 0x300b /* Reset SCSI bus */
- /* SCSI processor pin control register */
- #define CPU_PCTRL_PVALID 0x8000 /* Phase bits are valid */
- #define CPU_PCTRL_PHI 0x0400 /* Parity bit high */
- #define CPU_PCTRL_PLO 0x0200 /* Parity bit low */
- #define CPU_PCTRL_REQ 0x0100 /* REQ bus signal */
- #define CPU_PCTRL_ACK 0x0080 /* ACK bus signal */
- #define CPU_PCTRL_RST 0x0040 /* RST bus signal */
- #define CPU_PCTRL_BSY 0x0020 /* BSY bus signal */
- #define CPU_PCTRL_SEL 0x0010 /* SEL bus signal */
- #define CPU_PCTRL_ATN 0x0008 /* ATN bus signal */
- #define CPU_PCTRL_MSG 0x0004 /* MSG bus signal */
- #define CPU_PCTRL_CD 0x0002 /* CD bus signal */
- #define CPU_PCTRL_IO 0x0001 /* IO bus signal */
- /* SCSI processor differential pins register */
- #define CPU_PDIFF_SENSE 0x0200 /* Differential sense */
- #define CPU_PDIFF_MODE 0x0100 /* Differential mode */
- #define CPU_PDIFF_OENAB 0x0080 /* Outputs enable */
- #define CPU_PDIFF_PMASK 0x007c /* Differential control pins */
- #define CPU_PDIFF_TGT 0x0002 /* Target mode enable */
- #define CPU_PDIFF_INIT 0x0001 /* Initiator mode enable */
- /* RISC processor status register */
- #define RISC_PSR_FTRUE 0x8000 /* Force true */
- #define RISC_PSR_LCD 0x4000 /* Loop counter shows done status */
- #define RISC_PSR_RIRQ 0x2000 /* RISC irq status */
- #define RISC_PSR_TOFLOW 0x1000 /* Timer overflow (rollover) */
- #define RISC_PSR_AOFLOW 0x0800 /* Arithmetic overflow */
- #define RISC_PSR_AMSB 0x0400 /* Arithmetic big endian */
- #define RISC_PSR_ACARRY 0x0200 /* Arithmetic carry */
- #define RISC_PSR_AZERO 0x0100 /* Arithmetic zero */
- #define RISC_PSR_ULTRA 0x0020 /* Ultra mode */
- #define RISC_PSR_DIRQ 0x0010 /* DVMA interrupt */
- #define RISC_PSR_SIRQ 0x0008 /* SCSI processor interrupt */
- #define RISC_PSR_HIRQ 0x0004 /* Host interrupt */
- #define RISC_PSR_IPEND 0x0002 /* Interrupt pending */
- #define RISC_PSR_FFALSE 0x0001 /* Force false */
- /* RISC processor memory timing register */
- #define RISC_MTREG_P1DFLT 0x1200 /* Default read/write timing, pg1 */
- #define RISC_MTREG_P0DFLT 0x0012 /* Default read/write timing, pg0 */
- #define RISC_MTREG_P1ULTRA 0x2300 /* Ultra-mode rw timing, pg1 */
- #define RISC_MTREG_P0ULTRA 0x0023 /* Ultra-mode rw timing, pg0 */
- /* Host command/ctrl register */
- #define HCCTRL_NOP 0x0000 /* CMD: No operation */
- #define HCCTRL_RESET 0x1000 /* CMD: Reset RISC cpu */
- #define HCCTRL_PAUSE 0x2000 /* CMD: Pause RISC cpu */
- #define HCCTRL_REL 0x3000 /* CMD: Release paused RISC cpu */
- #define HCCTRL_STEP 0x4000 /* CMD: Single step RISC cpu */
- #define HCCTRL_SHIRQ 0x5000 /* CMD: Set host irq */
- #define HCCTRL_CHIRQ 0x6000 /* CMD: Clear host irq */
- #define HCCTRL_CRIRQ 0x7000 /* CMD: Clear RISC cpu irq */
- #define HCCTRL_BKPT 0x8000 /* CMD: Breakpoint enables change */
- #define HCCTRL_TMODE 0xf000 /* CMD: Enable test mode */
- #define HCCTRL_HIRQ 0x0080 /* Host IRQ pending */
- #define HCCTRL_RRIP 0x0040 /* RISC cpu reset in happening now */
- #define HCCTRL_RPAUSED 0x0020 /* RISC cpu is paused now */
- #define HCCTRL_EBENAB 0x0010 /* External breakpoint enable */
- #define HCCTRL_B1ENAB 0x0008 /* Breakpoint 1 enable */
- #define HCCTRL_B0ENAB 0x0004 /* Breakpoint 0 enable */
- #define QLOGICPTI {
- detect: qlogicpti_detect,
- release: qlogicpti_release,
- info: qlogicpti_info,
- queuecommand: qlogicpti_queuecommand_slow,
- abort: qlogicpti_abort,
- reset: qlogicpti_reset,
- can_queue: QLOGICPTI_REQ_QUEUE_LEN,
- this_id: 7,
- sg_tablesize: QLOGICPTI_MAX_SG(QLOGICPTI_REQ_QUEUE_LEN),
- cmd_per_lun: 1,
- use_clustering: ENABLE_CLUSTERING,
- use_new_eh_code: 0
- }
- /* For our interrupt engine. */
- #define for_each_qlogicpti(qp)
- for((qp) = qptichain; (qp); (qp) = (qp)->next)
- #endif /* !(_QLOGICPTI_H) */