/* $NetBSD: ispvar.h,v 1.4 1997/04/05 02:48:36 mjacob Exp $ */ /* * Soft Definitions for for Qlogic ISP SCSI adapters. * * Copyright (c) 1997 by Matthew Jacob * NASA/Ames Research Center * 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 immediately at the beginning of the file, without modification, * this list of conditions, and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE. */ #ifndef _ISPVAR_H #define _ISPVAR_H #include /* * Vector for MD code to provide specific services. */ struct ispsoftc; struct ispmdvec { u_int16_t (*dv_rd_reg) __P((struct ispsoftc *, int)); void (*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t)); int (*dv_mbxdma) __P((struct ispsoftc *)); int (*dv_dmaset) __P((struct ispsoftc *, struct scsi_xfer *, ispreq_t *, u_int8_t *, u_int8_t)); void (*dv_dmaclr) __P((struct ispsoftc *, struct scsi_xfer *, u_int32_t)); void (*dv_reset0) __P((struct ispsoftc *)); void (*dv_reset1) __P((struct ispsoftc *)); const u_int16_t *dv_ispfw; /* ptr to f/w */ u_int16_t dv_fwlen; /* length of f/w */ u_int16_t dv_codeorg; /* code ORG for f/w */ /* * Initial values for conf1 register */ u_int16_t dv_conf1; u_int16_t dv_clock; /* clock frequency */ }; #define MAX_TARGETS 16 #define MAX_LUNS 8 #define RQUEST_QUEUE_LEN 256 #define RESULT_QUEUE_LEN (RQUEST_QUEUE_LEN >> 3) #define QENTRY_LEN 64 #define ISP_QUEUE_ENTRY(q, idx) ((q) + ((idx) * QENTRY_LEN)) #define ISP_QUEUE_SIZE(n) ((n) * QENTRY_LEN) /* * Soft Structure per host adapter */ struct ispsoftc { struct device isp_dev; struct ispmdvec * isp_mdvec; #define isp_name isp_dev.dv_xname struct scsi_link isp_link; u_int8_t isp_max_target; u_int8_t isp_state; /* * Host Adapter Parameters, nominally stored in NVRAM */ u_int16_t isp_adapter_enabled : 1, isp_req_ack_active_neg : 1, isp_data_line_active_neg: 1, isp_cmd_dma_burst_enable: 1, isp_data_dma_burst_enabl: 1, isp_fifo_threshold : 2, : 1, isp_initiator_id : 4, isp_async_data_setup : 4; u_int16_t isp_selection_timeout; u_int16_t isp_max_queue_depth; u_int8_t isp_tag_aging; u_int8_t isp_bus_reset_delay; u_int8_t isp_retry_count; u_int8_t isp_retry_delay; struct { u_int8_t dev_flags; /* Device Flags - see below */ u_int8_t exc_throttle; u_int8_t sync_period; u_int8_t sync_offset : 4, dev_enable : 1; } isp_devparam[MAX_TARGETS]; /* * Result and Request Queues. */ volatile u_int8_t isp_reqidx; /* index of next request */ volatile u_int8_t isp_residx; /* index of next result */ volatile u_int8_t isp_sendmarker; volatile u_int8_t isp_seqno; /* * Sheer laziness, but it gets us around the problem * where we don't have a clean way of remembering * which scsi_xfer is bound to which ISP queue entry. * * There are other more clever ways to do this, but, * jeez, so I blow a couple of KB per host adapter... * and it *is* faster. */ volatile struct scsi_xfer *isp_xflist[RQUEST_QUEUE_LEN]; /* * request/result queue */ volatile caddr_t isp_rquest; volatile caddr_t isp_result; u_int32_t isp_rquest_dma; u_int32_t isp_result_dma; }; /* * ISP States */ #define ISP_NILSTATE 0 #define ISP_RESETSTATE 1 #define ISP_INITSTATE 2 #define ISP_RUNSTATE 3 /* * Device Flags */ #define DPARM_DISC 0x80 #define DPARM_PARITY 0x40 #define DPARM_WIDE 0x20 #define DPARM_SYNC 0x10 #define DPARM_TQING 0x08 #define DPARM_ARQ 0x04 #define DPARM_QFRZ 0x02 #define DPARM_RENEG 0x01 #define DPARM_DEFAULT (0xff & ~DPARM_QFRZ) /* * Macros to read, write ISP registers through MD code */ #define ISP_READ(isp, reg) \ (*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg)) #define ISP_WRITE(isp, reg, val) \ (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val)) #define ISP_MBOXDMASETUP(isp) \ (*(isp)->isp_mdvec->dv_mbxdma)((isp)) #define ISP_DMASETUP(isp, xs, req, iptrp, optr) \ (*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr)) #define ISP_DMAFREE(isp, xs, seqno) \ if ((isp)->isp_mdvec->dv_dmaclr) \ (*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (seqno)) #define ISP_RESET0(isp) \ if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp)) #define ISP_RESET1(isp) \ if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp)) #define ISP_SETBITS(isp, reg, val) \ (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val)) #define ISP_CLRBITS(isp, reg, val) \ (*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val)) /* * Function Prototypes */ /* * Reset Hardware. * * Only looks at sc_dev.dv_xname, sc_iot and sc_ioh fields. */ void isp_reset __P((struct ispsoftc *)); /* * Initialize Hardware to known state */ void isp_init __P((struct ispsoftc *)); /* * Complete attachment of Hardware */ void isp_attach __P((struct ispsoftc *)); /* * Free any associated resources prior to decommissioning. */ void isp_uninit __P((struct ispsoftc *)); /* * Interrupt Service Routine */ int isp_intr __P((void *)); #endif /* _ISPVAR_H */