patch-2.4.22 linux-2.4.22/drivers/scsi/aic79xx/aic79xx.h
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- Lines: 1481
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/drivers/scsi/aic79xx/aic79xx.h
- Orig date:
2003-06-13 07:51:36.000000000 -0700
diff -urN linux-2.4.21/drivers/scsi/aic79xx/aic79xx.h linux-2.4.22/drivers/scsi/aic79xx/aic79xx.h
@@ -1,1480 +0,0 @@
-/*
- * Core definitions and data structures shareable across OS platforms.
- *
- * Copyright (c) 1994-2002 Justin T. Gibbs.
- * Copyright (c) 2000-2002 Adaptec Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- *
- * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#78 $
- *
- * $FreeBSD$
- */
-
-#ifndef _AIC79XX_H_
-#define _AIC79XX_H_
-
-/* Register Definitions */
-#include "aic79xx_reg.h"
-
-/************************* Forward Declarations *******************************/
-struct ahd_platform_data;
-struct scb_platform_data;
-
-/****************************** Useful Macros *********************************/
-#ifndef MAX
-#define MAX(a,b) (((a) > (b)) ? (a) : (b))
-#endif
-
-#ifndef MIN
-#define MIN(a,b) (((a) < (b)) ? (a) : (b))
-#endif
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))
-
-#define ALL_CHANNELS '\0'
-#define ALL_TARGETS_MASK 0xFFFF
-#define INITIATOR_WILDCARD (~0)
-#define SCB_LIST_NULL 0xFF00
-#define SCB_LIST_NULL_LE (ahd_htole16(SCB_LIST_NULL))
-#define QOUTFIFO_ENTRY_VALID 0x8000
-#define QOUTFIFO_ENTRY_VALID_LE (ahd_htole16(0x8000))
-#define SCBID_IS_NULL(scbid) (((scbid) & 0xFF00 ) == SCB_LIST_NULL)
-
-#define SCSIID_TARGET(ahd, scsiid) \
- (((scsiid) & TID) >> TID_SHIFT)
-#define SCSIID_OUR_ID(scsiid) \
- ((scsiid) & OID)
-#define SCSIID_CHANNEL(ahd, scsiid) ('A')
-#define SCB_IS_SCSIBUS_B(ahd, scb) (0)
-#define SCB_GET_OUR_ID(scb) \
- SCSIID_OUR_ID((scb)->hscb->scsiid)
-#define SCB_GET_TARGET(ahd, scb) \
- SCSIID_TARGET((ahd), (scb)->hscb->scsiid)
-#define SCB_GET_CHANNEL(ahd, scb) \
- SCSIID_CHANNEL(ahd, (scb)->hscb->scsiid)
-#define SCB_GET_LUN(scb) \
- ((scb)->hscb->lun)
-#define SCB_GET_TARGET_OFFSET(ahd, scb) \
- SCB_GET_TARGET(ahd, scb)
-#define SCB_GET_TARGET_MASK(ahd, scb) \
- (0x01 << (SCB_GET_TARGET_OFFSET(ahd, scb)))
-#ifdef AHD_DEBUG
-#define SCB_IS_SILENT(scb) \
- ((ahd_debug & AHD_SHOW_MASKED_ERRORS) == 0 \
- && (((scb)->flags & SCB_SILENT) != 0))
-#else
-#define SCB_IS_SILENT(scb) \
- (((scb)->flags & SCB_SILENT) != 0)
-#endif
-/*
- * TCLs have the following format: TTTTLLLLLLLL
- */
-#define TCL_TARGET_OFFSET(tcl) \
- ((((tcl) >> 4) & TID) >> 4)
-#define TCL_LUN(tcl) \
- (tcl & (AHD_NUM_LUNS - 1))
-#define BUILD_TCL(scsiid, lun) \
- ((lun) | (((scsiid) & TID) << 4))
-#define BUILD_TCL_RAW(target, channel, lun) \
- ((lun) | ((target) << 8))
-
-#define SCB_GET_TAG(scb) \
- ahd_le16toh(scb->hscb->tag)
-
-#ifndef AHD_TARGET_MODE
-#undef AHD_TMODE_ENABLE
-#define AHD_TMODE_ENABLE 0
-#endif
-
-#define AHD_BUILD_COL_IDX(target, lun) \
- (((lun) << 4) | target)
-
-#define AHD_GET_SCB_COL_IDX(ahd, scb) \
- ((SCB_GET_LUN(scb) << 4) | SCB_GET_TARGET(ahd, scb))
-
-#define AHD_SET_SCB_COL_IDX(scb, col_idx) \
-do { \
- (scb)->hscb->scsiid = ((col_idx) << TID_SHIFT) & TID; \
- (scb)->hscb->lun = ((col_idx) >> 4) & (AHD_NUM_LUNS_NONPKT-1); \
-} while (0)
-
-#define AHD_COPY_SCB_COL_IDX(dst, src) \
-do { \
- dst->hscb->scsiid = src->hscb->scsiid; \
- dst->hscb->lun = src->hscb->lun; \
-} while (0)
-
-#define AHD_NEVER_COL_IDX 0xFFFF
-
-/**************************** Driver Constants ********************************/
-/*
- * The maximum number of supported targets.
- */
-#define AHD_NUM_TARGETS 16
-
-/*
- * The maximum number of supported luns.
- * The identify message only supports 64 luns in non-packetized transfers.
- * You can have 2^64 luns when information unit transfers are enabled,
- * but until we see a need to support that many, we support 256.
- */
-#define AHD_NUM_LUNS_NONPKT 64
-#define AHD_NUM_LUNS 256
-
-/*
- * The maximum transfer per S/G segment.
- */
-#define AHD_MAXTRANSFER_SIZE 0x00ffffff /* limited by 24bit counter */
-
-/*
- * The maximum amount of SCB storage in hardware on a controller.
- * This value represents an upper bound. Due to software design,
- * we may not be able to use this number.
- */
-#define AHD_SCB_MAX 512
-
-/*
- * The maximum number of concurrent transactions supported per driver instance.
- * Sequencer Control Blocks (SCBs) store per-transaction information.
- */
-#define AHD_MAX_QUEUE AHD_SCB_MAX
-
-/*
- * Define the size of our QIN and QOUT FIFOs. They must be a power of 2
- * in size and accomodate as many transactions as can be queued concurrently.
- */
-#define AHD_QIN_SIZE AHD_MAX_QUEUE
-#define AHD_QOUT_SIZE AHD_MAX_QUEUE
-
-#define AHD_QIN_WRAP(x) ((x) & (AHD_QIN_SIZE-1))
-/*
- * The maximum amount of SCB storage we allocate in host memory.
- */
-#define AHD_SCB_MAX_ALLOC AHD_MAX_QUEUE
-
-/*
- * Ring Buffer of incoming target commands.
- * We allocate 256 to simplify the logic in the sequencer
- * by using the natural wrap point of an 8bit counter.
- */
-#define AHD_TMODE_CMDS 256
-
-/* Reset line assertion time in us */
-#define AHD_BUSRESET_DELAY 25
-
-/******************* Chip Characteristics/Operating Settings *****************/
-/*
- * Chip Type
- * The chip order is from least sophisticated to most sophisticated.
- */
-typedef enum {
- AHD_NONE = 0x0000,
- AHD_CHIPID_MASK = 0x00FF,
- AHD_AIC7901 = 0x0001,
- AHD_AIC7902 = 0x0002,
- AHD_AIC7901A = 0x0003,
- AHD_PCI = 0x0100, /* Bus type PCI */
- AHD_PCIX = 0x0200, /* Bus type PCIX */
- AHD_BUS_MASK = 0x0F00
-} ahd_chip;
-
-/*
- * Features available in each chip type.
- */
-typedef enum {
- AHD_FENONE = 0x00000,
- AHD_WIDE = 0x00001,/* Wide Channel */
- AHD_MULTI_FUNC = 0x00100,/* Multi-Function/Channel Device */
- AHD_TARGETMODE = 0x01000,/* Has tested target mode support */
- AHD_MULTIROLE = 0x02000,/* Space for two roles at a time */
- AHD_RTI = 0x04000,/* Retained Training Support */
- AHD_NEW_IOCELL_OPTS = 0x08000,/* More Signal knobs in the IOCELL */
- AHD_NEW_DFCNTRL_OPTS = 0x10000,/* SCSIENWRDIS bit */
- AHD_REMOVABLE = 0x00000,/* Hot-Swap supported - None so far*/
- AHD_AIC7901_FE = AHD_FENONE,
- AHD_AIC7902_FE = AHD_MULTI_FUNC
-} ahd_feature;
-
-/*
- * Bugs in the silicon that we work around in software.
- */
-typedef enum {
- AHD_BUGNONE = 0x0000,
- /*
- * Rev A hardware fails to update LAST/CURR/NEXTSCB
- * correctly in certain packetized selection cases.
- */
- AHD_SENT_SCB_UPDATE_BUG = 0x0001,
- /* The wrong SCB is accessed to check the abort pending bit. */
- AHD_ABORT_LQI_BUG = 0x0002,
- /* Packetized bitbucket crosses packet boundaries. */
- AHD_PKT_BITBUCKET_BUG = 0x0004,
- /* The selection timer runs twice as long as its setting. */
- AHD_LONG_SETIMO_BUG = 0x0008,
- /* The Non-LQ CRC error status is delayed until phase change. */
- AHD_NLQICRC_DELAYED_BUG = 0x0010,
- /* The chip must be reset for all outgoing bus resets. */
- AHD_SCSIRST_BUG = 0x0020,
- /* Some PCIX fields must be saved and restored across chip reset. */
- AHD_PCIX_CHIPRST_BUG = 0x0040,
- /* MMAPIO is not functional in PCI-X mode. */
- AHD_PCIX_MMAPIO_BUG = 0x0080,
- /* Bug workarounds that can be disabled on non-PCIX busses. */
- AHD_PCIX_BUG_MASK = AHD_PCIX_CHIPRST_BUG
- | AHD_PCIX_MMAPIO_BUG,
- /*
- * LQOSTOP0 status set even for forced selections with ATN
- * to perform non-packetized message delivery.
- */
- AHD_LQO_ATNO_BUG = 0x0100,
- /* FIFO auto-flush does not always trigger. */
- AHD_AUTOFLUSH_BUG = 0x0200,
- /* The CLRLQO registers are not self-clearing. */
- AHD_CLRLQO_AUTOCLR_BUG = 0x0400,
- /* The PACKETIZED status bit refers to the previous connection. */
- AHD_PKTIZED_STATUS_BUG = 0x0800,
- /* "Short Luns" are not placed into outgoing LQ packets correctly. */
- AHD_PKT_LUN_BUG = 0x1000,
- /*
- * Only the FIFO allocated to the non-packetized connection may
- * be in use during a non-packetzied connection.
- */
- AHD_NONPACKFIFO_BUG = 0x2000,
- /*
- * Writing to a DFF SCBPTR register may fail if concurent with
- * a hardware write to the other DFF SCBPTR register. This is
- * not currently a concern in our sequencer since all chips with
- * this bug have the AHD_NONPACKFIFO_BUG and all writes of concern
- * occur in non-packetized connections.
- */
- AHD_MDFF_WSCBPTR_BUG = 0x4000,
- /* SGHADDR updates are slow. */
- AHD_REG_SLOW_SETTLE_BUG = 0x8000,
- /*
- * Changing the MODE_PTR coincident with an interrupt that
- * switches to a different mode will cause the interrupt to
- * be in the mode written outside of interrupt context.
- */
- AHD_SET_MODE_BUG = 0x10000,
- /* Non-packetized busfree revision does not work. */
- AHD_BUSFREEREV_BUG = 0x20000,
- /*
- * Paced transfers are indicated with a non-standard PPR
- * option bit in the neg table, 160MHz is indicated by
- * sync factor 0x7, and the offset if off by a factor of 2.
- */
- AHD_PACED_NEGTABLE_BUG = 0x40000,
- /* LQOOVERRUN false positives. */
- AHD_LQOOVERRUN_BUG = 0x80000,
- /*
- * Controller write to INTSTAT will lose to a host
- * write to CLRINT.
- */
- AHD_INTCOLLISION_BUG = 0x100000
-} ahd_bug;
-
-/*
- * Configuration specific settings.
- * The driver determines these settings by probing the
- * chip/controller's configuration.
- */
-typedef enum {
- AHD_FNONE = 0x00000,
- AHD_PRIMARY_CHANNEL = 0x00003,/*
- * The channel that should
- * be probed first.
- */
- AHD_USEDEFAULTS = 0x00004,/*
- * For cards without an seeprom
- * or a BIOS to initialize the chip's
- * SRAM, we use the default target
- * settings.
- */
- AHD_SEQUENCER_DEBUG = 0x00008,
- AHD_RESET_BUS_A = 0x00010,
- AHD_EXTENDED_TRANS_A = 0x00020,
- AHD_TERM_ENB_A = 0x00040,
- AHD_SPCHK_ENB_A = 0x00080,
- AHD_STPWLEVEL_A = 0x00100,
- AHD_INITIATORROLE = 0x00200,/*
- * Allow initiator operations on
- * this controller.
- */
- AHD_TARGETROLE = 0x00400,/*
- * Allow target operations on this
- * controller.
- */
- AHD_RESOURCE_SHORTAGE = 0x00800,
- AHD_TQINFIFO_BLOCKED = 0x01000,/* Blocked waiting for ATIOs */
- AHD_INT50_SPEEDFLEX = 0x02000,/*
- * Internal 50pin connector
- * sits behind an aic3860
- */
- AHD_BIOS_ENABLED = 0x04000,
- AHD_ALL_INTERRUPTS = 0x08000,
- AHD_39BIT_ADDRESSING = 0x10000,/* Use 39 bit addressing scheme. */
- AHD_64BIT_ADDRESSING = 0x20000,/* Use 64 bit addressing scheme. */
- AHD_CURRENT_SENSING = 0x40000,
- AHD_SCB_CONFIG_USED = 0x80000,/* No SEEPROM but SCB had info. */
- AHD_HP_BOARD = 0x100000,
- AHD_RESET_POLL_ACTIVE = 0x200000,
- AHD_UPDATE_PEND_CMDS = 0x400000,
- AHD_RUNNING_QOUTFIFO = 0x800000
-} ahd_flag;
-
-/************************* Hardware SCB Definition ***************************/
-
-/*
- * The driver keeps up to MAX_SCB scb structures per card in memory. The SCB
- * consists of a "hardware SCB" mirroring the fields availible on the card
- * and additional information the kernel stores for each transaction.
- *
- * To minimize space utilization, a portion of the hardware scb stores
- * different data during different portions of a SCSI transaction.
- * As initialized by the host driver for the initiator role, this area
- * contains the SCSI cdb (or a pointer to the cdb) to be executed. After
- * the cdb has been presented to the target, this area serves to store
- * residual transfer information and the SCSI status byte.
- * For the target role, the contents of this area do not change, but
- * still serve a different purpose than for the initiator role. See
- * struct target_data for details.
- */
-
-/*
- * Status information embedded in the shared poriton of
- * an SCB after passing the cdb to the target. The kernel
- * driver will only read this data for transactions that
- * complete abnormally.
- */
-struct initiator_status {
- uint32_t residual_datacnt; /* Residual in the current S/G seg */
- uint32_t residual_sgptr; /* The next S/G for this transfer */
- uint8_t scsi_status; /* Standard SCSI status byte */
-};
-
-struct target_status {
- uint32_t residual_datacnt; /* Residual in the current S/G seg */
- uint32_t residual_sgptr; /* The next S/G for this transfer */
- uint8_t scsi_status; /* SCSI status to give to initiator */
- uint8_t target_phases; /* Bitmap of phases to execute */
- uint8_t data_phase; /* Data-In or Data-Out */
- uint8_t initiator_tag; /* Initiator's transaction tag */
-};
-
-/*
- * Initiator mode SCB shared data area.
- * If the embedded CDB is 12 bytes or less, we embed
- * the sense buffer address in the SCB. This allows
- * us to retrieve sense information without interupting
- * the host in packetized mode.
- */
-typedef uint32_t sense_addr_t;
-#define MAX_CDB_LEN 16
-#define MAX_CDB_LEN_WITH_SENSE_ADDR (MAX_CDB_LEN - sizeof(sense_addr_t))
-union initiator_data {
- uint64_t cdbptr;
- uint8_t cdb[MAX_CDB_LEN];
- struct {
- uint8_t cdb[MAX_CDB_LEN_WITH_SENSE_ADDR];
- sense_addr_t sense_addr;
- } cdb_plus_saddr;
-};
-
-/*
- * Target mode version of the shared data SCB segment.
- */
-struct target_data {
- uint32_t spare[2];
- uint8_t scsi_status; /* SCSI status to give to initiator */
- uint8_t target_phases; /* Bitmap of phases to execute */
- uint8_t data_phase; /* Data-In or Data-Out */
- uint8_t initiator_tag; /* Initiator's transaction tag */
-};
-
-struct hardware_scb {
-/*0*/ union {
- union initiator_data idata;
- struct target_data tdata;
- struct initiator_status istatus;
- struct target_status tstatus;
- } shared_data;
-/*
- * A word about residuals.
- * The scb is presented to the sequencer with the dataptr and datacnt
- * fields initialized to the contents of the first S/G element to
- * transfer. The sgptr field is initialized to the bus address for
- * the S/G element that follows the first in the in core S/G array
- * or'ed with the SG_FULL_RESID flag. Sgptr may point to an invalid
- * S/G entry for this transfer (single S/G element transfer with the
- * first elements address and length preloaded in the dataptr/datacnt
- * fields). If no transfer is to occur, sgptr is set to SG_LIST_NULL.
- * The SG_FULL_RESID flag ensures that the residual will be correctly
- * noted even if no data transfers occur. Once the data phase is entered,
- * the residual sgptr and datacnt are loaded from the sgptr and the
- * datacnt fields. After each S/G element's dataptr and length are
- * loaded into the hardware, the residual sgptr is advanced. After
- * each S/G element is expired, its datacnt field is checked to see
- * if the LAST_SEG flag is set. If so, SG_LIST_NULL is set in the
- * residual sg ptr and the transfer is considered complete. If the
- * sequencer determines that there is a residual in the tranfer, or
- * there is non-zero status, it will set the SG_STATUS_VALID flag in
- * sgptr and dma the scb back into host memory. To sumarize:
- *
- * Sequencer:
- * o A residual has occurred if SG_FULL_RESID is set in sgptr,
- * or residual_sgptr does not have SG_LIST_NULL set.
- *
- * o We are transfering the last segment if residual_datacnt has
- * the SG_LAST_SEG flag set.
- *
- * Host:
- * o A residual can only have occurred if a completed scb has the
- * SG_STATUS_VALID flag set. Inspection of the SCSI status field,
- * the residual_datacnt, and the residual_sgptr field will tell
- * for sure.
- *
- * o residual_sgptr and sgptr refer to the "next" sg entry
- * and so may point beyond the last valid sg entry for the
- * transfer.
- */
-#define SG_PTR_MASK 0xFFFFFFF8
-/*16*/ uint16_t tag;
-/*18*/ uint8_t cdb_len;
-/*19*/ uint8_t task_management;
-/*20*/ uint32_t next_hscb_busaddr;
-/*24*/ uint64_t dataptr;
-/*32*/ uint32_t datacnt; /* Byte 3 is spare. */
-/*36*/ uint32_t sgptr;
-/*40*/ uint8_t control; /* See SCB_CONTROL in aic79xx.reg for details */
-/*41*/ uint8_t scsiid; /*
- * Selection out Id
- * Our Id (bits 0-3) Their ID (bits 4-7)
- */
-/*42*/ uint8_t lun;
-/*43*/ uint8_t task_attribute;
-/*44*/ uint32_t hscb_busaddr;
-/******* Long lun field only downloaded for full 8 byte lun support *******/
-/*48*/ uint8_t pkt_long_lun[8];
-/******* Fields below are not Downloaded (Sequencer may use for scratch) ******/
-/*56*/ uint8_t spare[8];
-};
-
-/************************ Kernel SCB Definitions ******************************/
-/*
- * Some fields of the SCB are OS dependent. Here we collect the
- * definitions for elements that all OS platforms need to include
- * in there SCB definition.
- */
-
-/*
- * Definition of a scatter/gather element as transfered to the controller.
- * The aic7xxx chips only support a 24bit length. We use the top byte of
- * the length to store additional address bits and a flag to indicate
- * that a given segment terminates the transfer. This gives us an
- * addressable range of 512GB on machines with 64bit PCI or with chips
- * that can support dual address cycles on 32bit PCI busses.
- */
-struct ahd_dma_seg {
- uint32_t addr;
- uint32_t len;
-#define AHD_DMA_LAST_SEG 0x80000000
-#define AHD_SG_HIGH_ADDR_MASK 0x7F000000
-#define AHD_SG_LEN_MASK 0x00FFFFFF
-};
-
-struct ahd_dma64_seg {
- uint64_t addr;
- uint32_t len;
- uint32_t pad;
-};
-
-struct map_node {
- bus_dmamap_t dmamap;
- bus_addr_t physaddr;
- uint8_t *vaddr;
- SLIST_ENTRY(map_node) links;
-};
-
-/*
- * The current state of this SCB.
- */
-typedef enum {
- SCB_FLAG_NONE = 0x00000,
- SCB_TRANSMISSION_ERROR = 0x00001,/*
- * We detected a parity or CRC
- * error that has effected the
- * payload of the command. This
- * flag is checked when normal
- * status is returned to catch
- * the case of a target not
- * responding to our attempt
- * to report the error.
- */
- SCB_OTHERTCL_TIMEOUT = 0x00002,/*
- * Another device was active
- * during the first timeout for
- * this SCB so we gave ourselves
- * an additional timeout period
- * in case it was hogging the
- * bus.
- */
- SCB_DEVICE_RESET = 0x00004,
- SCB_SENSE = 0x00008,
- SCB_CDB32_PTR = 0x00010,
- SCB_RECOVERY_SCB = 0x00020,
- SCB_AUTO_NEGOTIATE = 0x00040,/* Negotiate to achieve goal. */
- SCB_NEGOTIATE = 0x00080,/* Negotiation forced for command. */
- SCB_ABORT = 0x00100,
- SCB_ACTIVE = 0x00200,
- SCB_TARGET_IMMEDIATE = 0x00400,
- SCB_PACKETIZED = 0x00800,
- SCB_EXPECT_PPR_BUSFREE = 0x01000,
- SCB_PKT_SENSE = 0x02000,
- SCB_CMDPHASE_ABORT = 0x04000,
- SCB_ON_COL_LIST = 0x08000,
- SCB_SILENT = 0x10000 /*
- * Be quiet about transmission type
- * errors. They are expected and we
- * don't want to upset the user. This
- * flag is typically used during DV.
- */
-} scb_flag;
-
-struct scb {
- struct hardware_scb *hscb;
- union {
- SLIST_ENTRY(scb) sle;
- LIST_ENTRY(scb) le;
- TAILQ_ENTRY(scb) tqe;
- } links;
- union {
- SLIST_ENTRY(scb) sle;
- LIST_ENTRY(scb) le;
- TAILQ_ENTRY(scb) tqe;
- } links2;
-#define pending_links links2.le
-#define collision_links links2.le
- struct scb *col_scb;
- ahd_io_ctx_t io_ctx;
- struct ahd_softc *ahd_softc;
- scb_flag flags;
-#ifndef __linux__
- bus_dmamap_t dmamap;
-#endif
- struct scb_platform_data *platform_data;
- struct map_node *hscb_map;
- struct map_node *sg_map;
- struct map_node *sense_map;
- void *sg_list;
- uint8_t *sense_data;
- bus_addr_t sg_list_busaddr;
- bus_addr_t sense_busaddr;
- u_int sg_count;/* How full ahd_dma_seg is */
-#define AHD_MAX_LQ_CRC_ERRORS 5
- u_int crc_retry_count;
-};
-
-TAILQ_HEAD(scb_tailq, scb);
-LIST_HEAD(scb_list, scb);
-
-struct scb_data {
- /*
- * TAILQ of lists of free SCBs grouped by device
- * collision domains.
- */
- struct scb_tailq free_scbs;
-
- /*
- * Per-device lists of SCBs whose tag ID would collide
- * with an already active tag on the device.
- */
- struct scb_list free_scb_lists[AHD_NUM_TARGETS * AHD_NUM_LUNS_NONPKT];
-
- /*
- * SCBs that will not collide with any active device.
- */
- struct scb_list any_dev_free_scb_list;
-
- /*
- * Mapping from tag to SCB.
- */
- struct scb *scbindex[AHD_SCB_MAX];
-
- /*
- * "Bus" addresses of our data structures.
- */
- bus_dma_tag_t hscb_dmat; /* dmat for our hardware SCB array */
- bus_dma_tag_t sg_dmat; /* dmat for our sg segments */
- bus_dma_tag_t sense_dmat; /* dmat for our sense buffers */
- SLIST_HEAD(, map_node) hscb_maps;
- SLIST_HEAD(, map_node) sg_maps;
- SLIST_HEAD(, map_node) sense_maps;
- int scbs_left; /* unallocated scbs in head map_node */
- int sgs_left; /* unallocated sgs in head map_node */
- int sense_left; /* unallocated sense in head map_node */
- uint16_t numscbs;
- uint16_t maxhscbs; /* Number of SCBs on the card */
- uint8_t init_level; /*
- * How far we've initialized
- * this structure.
- */
-};
-
-/************************ Target Mode Definitions *****************************/
-
-/*
- * Connection desciptor for select-in requests in target mode.
- */
-struct target_cmd {
- uint8_t scsiid; /* Our ID and the initiator's ID */
- uint8_t identify; /* Identify message */
- uint8_t bytes[22]; /*
- * Bytes contains any additional message
- * bytes terminated by 0xFF. The remainder
- * is the cdb to execute.
- */
- uint8_t cmd_valid; /*
- * When a command is complete, the firmware
- * will set cmd_valid to all bits set.
- * After the host has seen the command,
- * the bits are cleared. This allows us
- * to just peek at host memory to determine
- * if more work is complete. cmd_valid is on
- * an 8 byte boundary to simplify setting
- * it on aic7880 hardware which only has
- * limited direct access to the DMA FIFO.
- */
- uint8_t pad[7];
-};
-
-/*
- * Number of events we can buffer up if we run out
- * of immediate notify ccbs.
- */
-#define AHD_TMODE_EVENT_BUFFER_SIZE 8
-struct ahd_tmode_event {
- uint8_t initiator_id;
- uint8_t event_type; /* MSG type or EVENT_TYPE_BUS_RESET */
-#define EVENT_TYPE_BUS_RESET 0xFF
- uint8_t event_arg;
-};
-
-/*
- * Per enabled lun target mode state.
- * As this state is directly influenced by the host OS'es target mode
- * environment, we let the OS module define it. Forward declare the
- * structure here so we can store arrays of them, etc. in OS neutral
- * data structures.
- */
-#ifdef AHD_TARGET_MODE
-struct ahd_tmode_lstate {
- struct cam_path *path;
- struct ccb_hdr_slist accept_tios;
- struct ccb_hdr_slist immed_notifies;
- struct ahd_tmode_event event_buffer[AHD_TMODE_EVENT_BUFFER_SIZE];
- uint8_t event_r_idx;
- uint8_t event_w_idx;
-};
-#else
-struct ahd_tmode_lstate;
-#endif
-
-/******************** Transfer Negotiation Datastructures *********************/
-#define AHD_TRANS_CUR 0x01 /* Modify current neogtiation status */
-#define AHD_TRANS_ACTIVE 0x03 /* Assume this target is on the bus */
-#define AHD_TRANS_GOAL 0x04 /* Modify negotiation goal */
-#define AHD_TRANS_USER 0x08 /* Modify user negotiation settings */
-#define AHD_PERIOD_10MHz 0x19
-
-#define AHD_WIDTH_UNKNOWN 0xFF
-#define AHD_PERIOD_UNKNOWN 0xFF
-#define AHD_OFFSET_UNKNOWN 0x0
-#define AHD_PPR_OPTS_UNKNOWN 0xFF
-
-/*
- * Transfer Negotiation Information.
- */
-struct ahd_transinfo {
- uint8_t protocol_version; /* SCSI Revision level */
- uint8_t transport_version; /* SPI Revision level */
- uint8_t width; /* Bus width */
- uint8_t period; /* Sync rate factor */
- uint8_t offset; /* Sync offset */
- uint8_t ppr_options; /* Parallel Protocol Request options */
-};
-
-/*
- * Per-initiator current, goal and user transfer negotiation information. */
-struct ahd_initiator_tinfo {
- struct ahd_transinfo curr;
- struct ahd_transinfo goal;
- struct ahd_transinfo user;
-};
-
-/*
- * Per enabled target ID state.
- * Pointers to lun target state as well as sync/wide negotiation information
- * for each initiator<->target mapping. For the initiator role we pretend
- * that we are the target and the targets are the initiators since the
- * negotiation is the same regardless of role.
- */
-struct ahd_tmode_tstate {
- struct ahd_tmode_lstate* enabled_luns[AHD_NUM_LUNS];
- struct ahd_initiator_tinfo transinfo[AHD_NUM_TARGETS];
-
- /*
- * Per initiator state bitmasks.
- */
- uint16_t auto_negotiate;/* Auto Negotiation Required */
- uint16_t discenable; /* Disconnection allowed */
- uint16_t tagenable; /* Tagged Queuing allowed */
-};
-
-/*
- * Points of interest along the negotiated transfer scale.
- */
-#define AHD_SYNCRATE_160 0x8
-#define AHD_SYNCRATE_PACED 0x8
-#define AHD_SYNCRATE_DT 0x9
-#define AHD_SYNCRATE_ULTRA2 0xa
-#define AHD_SYNCRATE_ULTRA 0xc
-#define AHD_SYNCRATE_FAST 0x19
-#define AHD_SYNCRATE_MIN_DT AHD_SYNCRATE_FAST
-#define AHD_SYNCRATE_SYNC 0x32
-#define AHD_SYNCRATE_MIN 0x60
-#define AHD_SYNCRATE_ASYNC 0xFF
-#define AHD_SYNCRATE_MAX AHD_SYNCRATE_160
-
-/* Safe and valid period for async negotiations. */
-#define AHD_ASYNC_XFER_PERIOD 0x44
-
-/*
- * In RevA, the synctable uses a 120MHz rate for the period
- * factor 8 and 160MHz for the period factor 7. The 120MHz
- * rate never made it into the official SCSI spec, so we must
- * compensate when setting the negotiation table for Rev A
- * parts.
- */
-#define AHD_SYNCRATE_REVA_120 0x8
-#define AHD_SYNCRATE_REVA_160 0x7
-
-/***************************** Lookup Tables **********************************/
-/*
- * Phase -> name and message out response
- * to parity errors in each phase table.
- */
-struct ahd_phase_table_entry {
- uint8_t phase;
- uint8_t mesg_out; /* Message response to parity errors */
- char *phasemsg;
-};
-
-/************************** Serial EEPROM Format ******************************/
-
-struct seeprom_config {
-/*
- * Per SCSI ID Configuration Flags
- */
- uint16_t device_flags[16]; /* words 0-15 */
-#define CFXFER 0x003F /* synchronous transfer rate */
-#define CFXFER_ASYNC 0x3F
-#define CFQAS 0x0040 /* Negotiate QAS */
-#define CFPACKETIZED 0x0080 /* Negotiate Packetized Transfers */
-#define CFSTART 0x0100 /* send start unit SCSI command */
-#define CFINCBIOS 0x0200 /* include in BIOS scan */
-#define CFDISC 0x0400 /* enable disconnection */
-#define CFMULTILUNDEV 0x0800 /* Probe multiple luns in BIOS scan */
-#define CFWIDEB 0x1000 /* wide bus device */
-#define CFHOSTMANAGED 0x8000 /* Managed by a RAID controller */
-
-/*
- * BIOS Control Bits
- */
- uint16_t bios_control; /* word 16 */
-#define CFSUPREM 0x0001 /* support all removeable drives */
-#define CFSUPREMB 0x0002 /* support removeable boot drives */
-#define CFBIOSSTATE 0x000C /* BIOS Action State */
-#define CFBS_DISABLED 0x00
-#define CFBS_ENABLED 0x04
-#define CFBS_DISABLED_SCAN 0x08
-#define CFENABLEDV 0x0010 /* Perform Domain Validation */
-#define CFCTRL_A 0x0020 /* BIOS displays Ctrl-A message */
-#define CFSPARITY 0x0040 /* SCSI parity */
-#define CFEXTEND 0x0080 /* extended translation enabled */
-#define CFBOOTCD 0x0100 /* Support Bootable CD-ROM */
-#define CFMSG_LEVEL 0x0600 /* BIOS Message Level */
-#define CFMSG_VERBOSE 0x0000
-#define CFMSG_SILENT 0x0200
-#define CFMSG_DIAG 0x0400
-#define CFRESETB 0x0800 /* reset SCSI bus at boot */
-/* UNUSED 0xf000 */
-
-/*
- * Host Adapter Control Bits
- */
- uint16_t adapter_control; /* word 17 */
-#define CFAUTOTERM 0x0001 /* Perform Auto termination */
-#define CFSTERM 0x0002 /* SCSI low byte termination */
-#define CFWSTERM 0x0004 /* SCSI high byte termination */
-#define CFSEAUTOTERM 0x0008 /* Ultra2 Perform secondary Auto Term*/
-#define CFSELOWTERM 0x0010 /* Ultra2 secondary low term */
-#define CFSEHIGHTERM 0x0020 /* Ultra2 secondary high term */
-#define CFSTPWLEVEL 0x0040 /* Termination level control */
-#define CFBIOSAUTOTERM 0x0080 /* Perform Auto termination */
-#define CFTERM_MENU 0x0100 /* BIOS displays termination menu */
-#define CFCLUSTERENB 0x8000 /* Cluster Enable */
-
-/*
- * Bus Release Time, Host Adapter ID
- */
- uint16_t brtime_id; /* word 18 */
-#define CFSCSIID 0x000f /* host adapter SCSI ID */
-/* UNUSED 0x00f0 */
-#define CFBRTIME 0xff00 /* bus release time/PCI Latency Time */
-
-/*
- * Maximum targets
- */
- uint16_t max_targets; /* word 19 */
-#define CFMAXTARG 0x00ff /* maximum targets */
-#define CFBOOTLUN 0x0f00 /* Lun to boot from */
-#define CFBOOTID 0xf000 /* Target to boot from */
- uint16_t res_1[10]; /* words 20-29 */
- uint16_t signature; /* BIOS Signature */
-#define CFSIGNATURE 0x400
- uint16_t checksum; /* word 31 */
-};
-
-/****************************** Flexport Logic ********************************/
-#define FLXADDR_TERMCTL 0x0
-#define FLX_TERMCTL_ENSECHIGH 0x8
-#define FLX_TERMCTL_ENSECLOW 0x4
-#define FLX_TERMCTL_ENPRIHIGH 0x2
-#define FLX_TERMCTL_ENPRILOW 0x1
-#define FLXADDR_ROMSTAT_CURSENSECTL 0x1
-#define FLX_ROMSTAT_SEECFG 0xF0
-#define FLX_ROMSTAT_EECFG 0x0F
-#define FLX_ROMSTAT_SEE_93C66 0x00
-#define FLX_ROMSTAT_SEE_NONE 0xF0
-#define FLX_ROMSTAT_EE_512x8 0x0
-#define FLX_ROMSTAT_EE_1MBx8 0x1
-#define FLX_ROMSTAT_EE_2MBx8 0x2
-#define FLX_ROMSTAT_EE_4MBx8 0x3
-#define FLX_ROMSTAT_EE_16MBx8 0x4
-#define CURSENSE_ENB 0x1
-#define FLXADDR_FLEXSTAT 0x2
-#define FLX_FSTAT_BUSY 0x1
-#define FLXADDR_CURRENT_STAT 0x4
-#define FLX_CSTAT_SEC_HIGH 0xC0
-#define FLX_CSTAT_SEC_LOW 0x30
-#define FLX_CSTAT_PRI_HIGH 0x0C
-#define FLX_CSTAT_PRI_LOW 0x03
-#define FLX_CSTAT_MASK 0x03
-#define FLX_CSTAT_SHIFT 2
-#define FLX_CSTAT_OKAY 0x0
-#define FLX_CSTAT_OVER 0x1
-#define FLX_CSTAT_UNDER 0x2
-#define FLX_CSTAT_INVALID 0x3
-
-int ahd_read_seeprom(struct ahd_softc *ahd, uint16_t *buf,
- u_int start_addr, u_int count);
-
-int ahd_write_seeprom(struct ahd_softc *ahd, uint16_t *buf,
- u_int start_addr, u_int count);
-int ahd_wait_seeprom(struct ahd_softc *ahd);
-int ahd_verify_cksum(struct seeprom_config *sc);
-int ahd_acquire_seeprom(struct ahd_softc *ahd);
-void ahd_release_seeprom(struct ahd_softc *ahd);
-
-/**************************** Message Buffer *********************************/
-typedef enum {
- MSG_FLAG_NONE = 0x00,
- MSG_FLAG_EXPECT_PPR_BUSFREE = 0x01,
- MSG_FLAG_IU_REQ_CHANGED = 0x02,
- MSG_FLAG_EXPECT_IDE_BUSFREE = 0x04,
- MSG_FLAG_EXPECT_QASREJ_BUSFREE = 0x08,
- MSG_FLAG_PACKETIZED = 0x10
-} ahd_msg_flags;
-
-typedef enum {
- MSG_TYPE_NONE = 0x00,
- MSG_TYPE_INITIATOR_MSGOUT = 0x01,
- MSG_TYPE_INITIATOR_MSGIN = 0x02,
- MSG_TYPE_TARGET_MSGOUT = 0x03,
- MSG_TYPE_TARGET_MSGIN = 0x04
-} ahd_msg_type;
-
-typedef enum {
- MSGLOOP_IN_PROG,
- MSGLOOP_MSGCOMPLETE,
- MSGLOOP_TERMINATED
-} msg_loop_stat;
-
-/*********************** Software Configuration Structure *********************/
-struct ahd_suspend_channel_state {
- uint8_t scsiseq;
- uint8_t sxfrctl0;
- uint8_t sxfrctl1;
- uint8_t simode0;
- uint8_t simode1;
- uint8_t seltimer;
- uint8_t seqctl;
-};
-
-struct ahd_suspend_state {
- struct ahd_suspend_channel_state channel[2];
- uint8_t optionmode;
- uint8_t dscommand0;
- uint8_t dspcistatus;
- /* hsmailbox */
- uint8_t crccontrol1;
- uint8_t scbbaddr;
- /* Host and sequencer SCB counts */
- uint8_t dff_thrsh;
- uint8_t *scratch_ram;
- uint8_t *btt;
-};
-
-typedef void (*ahd_bus_intr_t)(struct ahd_softc *);
-
-typedef enum {
- AHD_MODE_DFF0,
- AHD_MODE_DFF1,
- AHD_MODE_CCHAN,
- AHD_MODE_SCSI,
- AHD_MODE_CFG,
- AHD_MODE_UNKNOWN
-} ahd_mode;
-
-#define AHD_MK_MSK(x) (0x01 << (x))
-#define AHD_MODE_DFF0_MSK AHD_MK_MSK(AHD_MODE_DFF0)
-#define AHD_MODE_DFF1_MSK AHD_MK_MSK(AHD_MODE_DFF1)
-#define AHD_MODE_CCHAN_MSK AHD_MK_MSK(AHD_MODE_CCHAN)
-#define AHD_MODE_SCSI_MSK AHD_MK_MSK(AHD_MODE_SCSI)
-#define AHD_MODE_CFG_MSK AHD_MK_MSK(AHD_MODE_CFG)
-#define AHD_MODE_UNKNOWN_MSK AHD_MK_MSK(AHD_MODE_UNKNOWN)
-#define AHD_MODE_ANY_MSK (~0)
-
-typedef uint8_t ahd_mode_state;
-
-typedef void ahd_callback_t (void *);
-
-struct ahd_softc {
- bus_space_tag_t tags[2];
- bus_space_handle_t bshs[2];
-#ifndef __linux__
- bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
-#endif
- struct scb_data scb_data;
-
- struct hardware_scb *next_queued_hscb;
-
- /*
- * SCBs that have been sent to the controller
- */
- LIST_HEAD(, scb) pending_scbs;
-
- /*
- * Current register window mode information.
- */
- ahd_mode dst_mode;
- ahd_mode src_mode;
-
- /*
- * Saved register window mode information
- * used for restore on next unpause.
- */
- ahd_mode saved_dst_mode;
- ahd_mode saved_src_mode;
-
- /*
- * Platform specific data.
- */
- struct ahd_platform_data *platform_data;
-
- /*
- * Platform specific device information.
- */
- ahd_dev_softc_t dev_softc;
-
- /*
- * Bus specific device information.
- */
- ahd_bus_intr_t bus_intr;
-
- /*
- * Target mode related state kept on a per enabled lun basis.
- * Targets that are not enabled will have null entries.
- * As an initiator, we keep one target entry for our initiator
- * ID to store our sync/wide transfer settings.
- */
- struct ahd_tmode_tstate *enabled_targets[AHD_NUM_TARGETS];
-
- /*
- * The black hole device responsible for handling requests for
- * disabled luns on enabled targets.
- */
- struct ahd_tmode_lstate *black_hole;
-
- /*
- * Device instance currently on the bus awaiting a continue TIO
- * for a command that was not given the disconnect priveledge.
- */
- struct ahd_tmode_lstate *pending_device;
-
- /*
- * Timer handles for timer driven callbacks.
- */
- ahd_timer_t reset_timer;
- ahd_timer_t stat_timer;
-
- /*
- * Statistics.
- */
-#define AHD_STAT_UPDATE_US 250000 /* 250ms */
-#define AHD_STAT_BUCKETS 4
- u_int cmdcmplt_bucket;
- uint32_t cmdcmplt_counts[AHD_STAT_BUCKETS];
- uint32_t cmdcmplt_total;
-
- /*
- * Card characteristics
- */
- ahd_chip chip;
- ahd_feature features;
- ahd_bug bugs;
- ahd_flag flags;
- struct seeprom_config *seep_config;
-
- /* Values to store in the SEQCTL register for pause and unpause */
- uint8_t unpause;
- uint8_t pause;
-
- /* Command Queues */
- uint16_t qoutfifonext;
- uint16_t qoutfifonext_valid_tag;
- uint16_t qinfifonext;
- uint16_t qinfifo[AHD_SCB_MAX];
- uint16_t *qoutfifo;
-
- /* Critical Section Data */
- struct cs *critical_sections;
- u_int num_critical_sections;
-
- /* Buffer for handling packetized bitbucket. */
- uint8_t *overrun_buf;
-
- /* Links for chaining softcs */
- TAILQ_ENTRY(ahd_softc) links;
-
- /* Channel Names ('A', 'B', etc.) */
- char channel;
-
- /* Initiator Bus ID */
- uint8_t our_id;
-
- /*
- * Target incoming command FIFO.
- */
- struct target_cmd *targetcmds;
- uint8_t tqinfifonext;
-
- /*
- * Cached verson of the hs_mailbox so we can avoid
- * pausing the sequencer during mailbox updates.
- */
- uint8_t hs_mailbox;
-
- /*
- * Incoming and outgoing message handling.
- */
- uint8_t send_msg_perror;
- ahd_msg_flags msg_flags;
- ahd_msg_type msg_type;
- uint8_t msgout_buf[12];/* Message we are sending */
- uint8_t msgin_buf[12];/* Message we are receiving */
- u_int msgout_len; /* Length of message to send */
- u_int msgout_index; /* Current index in msgout */
- u_int msgin_index; /* Current index in msgin */
-
- /*
- * Mapping information for data structures shared
- * between the sequencer and kernel.
- */
- bus_dma_tag_t parent_dmat;
- bus_dma_tag_t shared_data_dmat;
- bus_dmamap_t shared_data_dmamap;
- bus_addr_t shared_data_busaddr;
-
- /* Information saved through suspend/resume cycles */
- struct ahd_suspend_state suspend_state;
-
- /* Number of enabled target mode device on this card */
- u_int enabled_luns;
-
- /* Initialization level of this data structure */
- u_int init_level;
-
- /* PCI cacheline size. */
- u_int pci_cachesize;
-
- /* IO Cell Parameters */
- uint8_t iocell_opts[AHD_NUM_PER_DEV_ANNEXCOLS];
-
- u_int stack_size;
- uint16_t *saved_stack;
-
- /* Per-Unit descriptive information */
- const char *description;
- const char *bus_description;
- char *name;
- int unit;
-
- /* Selection Timer settings */
- int seltime;
-
- /*
- * Interrupt coalessing settings.
- */
-#define AHD_INT_COALESSING_TIMER_DEFAULT 250 /*us*/
-#define AHD_INT_COALESSING_MAXCMDS_DEFAULT 10
-#define AHD_INT_COALESSING_MAXCMDS_MAX 127
-#define AHD_INT_COALESSING_MINCMDS_DEFAULT 5
-#define AHD_INT_COALESSING_MINCMDS_MAX 127
-#define AHD_INT_COALESSING_THRESHOLD_DEFAULT 2000
-#define AHD_INT_COALESSING_STOP_THRESHOLD_DEFAULT 1000
- u_int int_coalessing_timer;
- u_int int_coalessing_maxcmds;
- u_int int_coalessing_mincmds;
- u_int int_coalessing_threshold;
- u_int int_coalessing_stop_threshold;
-
- uint16_t user_discenable;/* Disconnection allowed */
- uint16_t user_tagenable;/* Tagged Queuing allowed */
-};
-
-TAILQ_HEAD(ahd_softc_tailq, ahd_softc);
-extern struct ahd_softc_tailq ahd_tailq;
-
-/*************************** IO Cell Configuration ****************************/
-#define AHD_PRECOMP_SLEW_INDEX \
- (AHD_ANNEXCOL_PRECOMP_SLEW - AHD_ANNEXCOL_PER_DEV0)
-
-#define AHD_AMPLITUDE_INDEX \
- (AHD_ANNEXCOL_AMPLITUDE - AHD_ANNEXCOL_PER_DEV0)
-
-#define AHD_SET_SLEWRATE(ahd, new_slew) \
-do { \
- (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] &= ~AHD_SLEWRATE_MASK; \
- (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] |= \
- (((new_slew) << AHD_SLEWRATE_SHIFT) & AHD_SLEWRATE_MASK); \
-} while (0)
-
-#define AHD_SET_PRECOMP(ahd, new_pcomp) \
-do { \
- (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] &= ~AHD_PRECOMP_MASK; \
- (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] |= \
- (((new_pcomp) << AHD_PRECOMP_SHIFT) & AHD_PRECOMP_MASK); \
-} while (0)
-
-#define AHD_SET_AMPLITUDE(ahd, new_amp) \
-do { \
- (ahd)->iocell_opts[AHD_AMPLITUDE_INDEX] &= ~AHD_AMPLITUDE_MASK; \
- (ahd)->iocell_opts[AHD_AMPLITUDE_INDEX] |= \
- (((new_amp) << AHD_AMPLITUDE_SHIFT) & AHD_AMPLITUDE_MASK); \
-} while (0)
-
-/************************ Active Device Information ***************************/
-typedef enum {
- ROLE_UNKNOWN,
- ROLE_INITIATOR,
- ROLE_TARGET
-} role_t;
-
-struct ahd_devinfo {
- int our_scsiid;
- int target_offset;
- uint16_t target_mask;
- u_int target;
- u_int lun;
- char channel;
- role_t role; /*
- * Only guaranteed to be correct if not
- * in the busfree state.
- */
-};
-
-/****************************** PCI Structures ********************************/
-#define AHD_PCI_IOADDR0 PCIR_MAPS /* I/O BAR*/
-#define AHD_PCI_MEMADDR (PCIR_MAPS + 4) /* Memory BAR */
-#define AHD_PCI_IOADDR1 (PCIR_MAPS + 12)/* Second I/O BAR */
-
-typedef int (ahd_device_setup_t)(struct ahd_softc *);
-
-struct ahd_pci_identity {
- uint64_t full_id;
- uint64_t id_mask;
- char *name;
- ahd_device_setup_t *setup;
-};
-extern struct ahd_pci_identity ahd_pci_ident_table [];
-extern const u_int ahd_num_pci_devs;
-
-/***************************** VL/EISA Declarations ***************************/
-struct aic7770_identity {
- uint32_t full_id;
- uint32_t id_mask;
- char *name;
- ahd_device_setup_t *setup;
-};
-extern struct aic7770_identity aic7770_ident_table [];
-extern const int ahd_num_aic7770_devs;
-
-#define AHD_EISA_SLOT_OFFSET 0xc00
-#define AHD_EISA_IOSIZE 0x100
-
-/*************************** Function Declarations ****************************/
-/******************************************************************************/
-void ahd_reset_cmds_pending(struct ahd_softc *ahd);
-u_int ahd_find_busy_tcl(struct ahd_softc *ahd, u_int tcl);
-void ahd_busy_tcl(struct ahd_softc *ahd,
- u_int tcl, u_int busyid);
-static __inline void ahd_unbusy_tcl(struct ahd_softc *ahd, u_int tcl);
-static __inline void
-ahd_unbusy_tcl(struct ahd_softc *ahd, u_int tcl)
-{
- ahd_busy_tcl(ahd, tcl, SCB_LIST_NULL);
-}
-
-/***************************** PCI Front End *********************************/
-struct ahd_pci_identity *ahd_find_pci_device(ahd_dev_softc_t);
-int ahd_pci_config(struct ahd_softc *,
- struct ahd_pci_identity *);
-int ahd_pci_test_register_access(struct ahd_softc *);
-
-/************************** SCB and SCB queue management **********************/
-int ahd_probe_scbs(struct ahd_softc *);
-void ahd_qinfifo_requeue_tail(struct ahd_softc *ahd,
- struct scb *scb);
-int ahd_match_scb(struct ahd_softc *ahd, struct scb *scb,
- int target, char channel, int lun,
- u_int tag, role_t role);
-
-/****************************** Initialization ********************************/
-struct ahd_softc *ahd_alloc(void *platform_arg, char *name);
-int ahd_softc_init(struct ahd_softc *);
-void ahd_controller_info(struct ahd_softc *ahd, char *buf);
-int ahd_init(struct ahd_softc *ahd);
-int ahd_default_config(struct ahd_softc *ahd);
-int ahd_parse_cfgdata(struct ahd_softc *ahd,
- struct seeprom_config *sc);
-void ahd_intr_enable(struct ahd_softc *ahd, int enable);
-void ahd_update_coalessing_values(struct ahd_softc *ahd,
- u_int timer,
- u_int maxcmds,
- u_int mincmds);
-void ahd_enable_coalessing(struct ahd_softc *ahd,
- int enable);
-void ahd_pause_and_flushwork(struct ahd_softc *ahd);
-int ahd_suspend(struct ahd_softc *ahd);
-int ahd_resume(struct ahd_softc *ahd);
-void ahd_softc_insert(struct ahd_softc *);
-struct ahd_softc *ahd_find_softc(struct ahd_softc *ahd);
-void ahd_set_unit(struct ahd_softc *, int);
-void ahd_set_name(struct ahd_softc *, char *);
-struct scb *ahd_get_scb(struct ahd_softc *ahd, u_int col_idx);
-void ahd_free_scb(struct ahd_softc *ahd, struct scb *scb);
-void ahd_alloc_scbs(struct ahd_softc *ahd);
-void ahd_free(struct ahd_softc *ahd);
-int ahd_reset(struct ahd_softc *ahd);
-void ahd_shutdown(void *arg);
-int ahd_write_flexport(struct ahd_softc *ahd,
- u_int addr, u_int value);
-int ahd_read_flexport(struct ahd_softc *ahd, u_int addr,
- uint8_t *value);
-int ahd_wait_flexport(struct ahd_softc *ahd);
-
-/*************************** Interrupt Services *******************************/
-void ahd_pci_intr(struct ahd_softc *ahd);
-void ahd_clear_intstat(struct ahd_softc *ahd);
-void ahd_flush_qoutfifo(struct ahd_softc *ahd);
-void ahd_run_qoutfifo(struct ahd_softc *ahd);
-#ifdef AHD_TARGET_MODE
-void ahd_run_tqinfifo(struct ahd_softc *ahd, int paused);
-#endif
-void ahd_handle_hwerrint(struct ahd_softc *ahd);
-void ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat);
-void ahd_handle_scsiint(struct ahd_softc *ahd,
- u_int intstat);
-void ahd_clear_critical_section(struct ahd_softc *ahd);
-
-/***************************** Error Recovery *********************************/
-typedef enum {
- SEARCH_COMPLETE,
- SEARCH_COUNT,
- SEARCH_REMOVE,
- SEARCH_PRINT
-} ahd_search_action;
-int ahd_search_qinfifo(struct ahd_softc *ahd, int target,
- char channel, int lun, u_int tag,
- role_t role, uint32_t status,
- ahd_search_action action);
-int ahd_search_disc_list(struct ahd_softc *ahd, int target,
- char channel, int lun, u_int tag,
- int stop_on_first, int remove,
- int save_state);
-void ahd_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
-int ahd_reset_channel(struct ahd_softc *ahd, char channel,
- int initiate_reset);
-int ahd_abort_scbs(struct ahd_softc *ahd, int target,
- char channel, int lun, u_int tag,
- role_t role, uint32_t status);
-void ahd_restart(struct ahd_softc *ahd);
-void ahd_clear_fifo(struct ahd_softc *ahd, u_int fifo);
-void ahd_handle_scb_status(struct ahd_softc *ahd,
- struct scb *scb);
-void ahd_handle_scsi_status(struct ahd_softc *ahd,
- struct scb *scb);
-void ahd_calc_residual(struct ahd_softc *ahd,
- struct scb *scb);
-/*************************** Utility Functions ********************************/
-struct ahd_phase_table_entry*
- ahd_lookup_phase_entry(int phase);
-void ahd_compile_devinfo(struct ahd_devinfo *devinfo,
- u_int our_id, u_int target,
- u_int lun, char channel,
- role_t role);
-/************************** Transfer Negotiation ******************************/
-void ahd_find_syncrate(struct ahd_softc *ahd, u_int *period,
- u_int *ppr_options, u_int maxsync);
-void ahd_validate_offset(struct ahd_softc *ahd,
- struct ahd_initiator_tinfo *tinfo,
- u_int period, u_int *offset,
- int wide, role_t role);
-void ahd_validate_width(struct ahd_softc *ahd,
- struct ahd_initiator_tinfo *tinfo,
- u_int *bus_width,
- role_t role);
-/*
- * Negotiation types. These are used to qualify if we should renegotiate
- * even if our goal and current transport parameters are identical.
- */
-typedef enum {
- AHD_NEG_TO_GOAL, /* Renegotiate only if goal and curr differ. */
- AHD_NEG_IF_NON_ASYNC, /* Renegotiate so long as goal is non-async. */
- AHD_NEG_ALWAYS /* Renegotiat even if goal is async. */
-} ahd_neg_type;
-int ahd_update_neg_request(struct ahd_softc*,
- struct ahd_devinfo*,
- struct ahd_tmode_tstate*,
- struct ahd_initiator_tinfo*,
- ahd_neg_type);
-void ahd_set_width(struct ahd_softc *ahd,
- struct ahd_devinfo *devinfo,
- u_int width, u_int type, int paused);
-void ahd_set_syncrate(struct ahd_softc *ahd,
- struct ahd_devinfo *devinfo,
- u_int period, u_int offset,
- u_int ppr_options,
- u_int type, int paused);
-typedef enum {
- AHD_QUEUE_NONE,
- AHD_QUEUE_BASIC,
- AHD_QUEUE_TAGGED
-} ahd_queue_alg;
-
-void ahd_set_tags(struct ahd_softc *ahd,
- struct ahd_devinfo *devinfo,
- ahd_queue_alg alg);
-
-/**************************** Target Mode *************************************/
-#ifdef AHD_TARGET_MODE
-void ahd_send_lstate_events(struct ahd_softc *,
- struct ahd_tmode_lstate *);
-void ahd_handle_en_lun(struct ahd_softc *ahd,
- struct cam_sim *sim, union ccb *ccb);
-cam_status ahd_find_tmode_devs(struct ahd_softc *ahd,
- struct cam_sim *sim, union ccb *ccb,
- struct ahd_tmode_tstate **tstate,
- struct ahd_tmode_lstate **lstate,
- int notfound_failure);
-#ifndef AHD_TMODE_ENABLE
-#define AHD_TMODE_ENABLE 0
-#endif
-#endif
-/******************************* Debug ***************************************/
-#ifdef AHD_DEBUG
-extern uint32_t ahd_debug;
-#define AHD_SHOW_MISC 0x00001
-#define AHD_SHOW_SENSE 0x00002
-#define AHD_SHOW_RECOVERY 0x00004
-#define AHD_DUMP_SEEPROM 0x00008
-#define AHD_SHOW_TERMCTL 0x00010
-#define AHD_SHOW_MEMORY 0x00020
-#define AHD_SHOW_MESSAGES 0x00040
-#define AHD_SHOW_MODEPTR 0x00080
-#define AHD_SHOW_SELTO 0x00100
-#define AHD_SHOW_FIFOS 0x00200
-#define AHD_SHOW_QFULL 0x00400
-#define AHD_SHOW_DV 0x00800
-#define AHD_SHOW_MASKED_ERRORS 0x01000
-#define AHD_SHOW_QUEUE 0x02000
-#define AHD_SHOW_TQIN 0x04000
-#define AHD_SHOW_SG 0x08000
-#define AHD_SHOW_INT_COALESSING 0x10000
-#define AHD_DEBUG_SEQUENCER 0x20000
-#endif
-void ahd_print_scb(struct scb *scb);
-void ahd_print_devinfo(struct ahd_softc *ahd,
- struct ahd_devinfo *devinfo);
-void ahd_dump_sglist(struct scb *scb);
-void ahd_dump_all_cards_state(void);
-void ahd_dump_card_state(struct ahd_softc *ahd);
-int ahd_print_register(ahd_reg_parse_entry_t *table,
- u_int num_entries,
- const char *name,
- u_int address,
- u_int value,
- u_int *cur_column,
- u_int wrap_point);
-void ahd_dump_scbs(struct ahd_softc *ahd);
-#endif /* _AIC79XX_H_ */
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)