/* $OpenBSD: siopvar_common.h,v 1.10 2002/03/14 01:26:55 millert Exp $ */ /* $NetBSD: siopvar_common.h,v 1.10 2001/01/26 21:58:56 bouyer Exp $ */ /* * Copyright (c) 2000 Manuel Bouyer. * * 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. * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Manuel Bouyer * 4. 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 ``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 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. * */ /* common struct and routines used by siop and esiop */ #ifndef SIOP_DEFAULT_TARGET #define SIOP_DEFAULT_TARGET 7 #endif /* tables used by SCRIPT */ struct scr_table { u_int32_t count; u_int32_t addr; } __attribute__((__packed__)); /* Number of scatter/gather entries */ #define SIOP_NSG (MAXPHYS/NBPG + 1) /* XXX NBPG */ /* Number of tags, also number of openings if tags are used */ #define SIOP_NTAG 16 /* Number of openings if tags are not used */ #define SIOP_OPENINGS 2 /* * This structure interfaces the SCRIPT with the driver; it describes a full * transfer. */ struct siop_xfer_common { u_int8_t msg_out[16]; /* 0 */ u_int8_t msg_in[16]; /* 16 */ u_int32_t status; /* 32 */ u_int32_t pad1; /* 36 */ u_int32_t id; /* 40 */ u_int32_t pad2; /* 44 */ struct scr_table t_msgin; /* 48 */ struct scr_table t_extmsgin; /* 56 */ struct scr_table t_extmsgdata; /* 64 */ struct scr_table t_msgout; /* 72 */ struct scr_table cmd; /* 80 */ struct scr_table t_status; /* 88 */ struct scr_table data[SIOP_NSG]; /* 96 */ } __attribute__((__packed__)); /* status can hold the SCSI_* status values, and 2 additional values: */ #define SCSI_SIOP_NOCHECK 0xfe /* don't check the scsi status */ #define SCSI_SIOP_NOSTATUS 0xff /* device didn't report status */ /* xfer description of the script: tables and reselect script */ struct siop_xfer { struct siop_xfer_common tables; /* u_int32_t resel[sizeof(load_dsa) / sizeof(load_dsa[0])]; */ u_int32_t resel[25]; } __attribute__((__packed__)); /* * This describes a command handled by the SCSI controller. * These are chained in either a free list or a active list. * We have one queue per target. */ struct siop_cmd { TAILQ_ENTRY (siop_cmd) next; struct siop_softc *siop_sc; /* points back to our adapter */ struct siop_target *siop_target; /* pointer to our target def */ struct scsi_xfer *xs; /* xfer from the upper level */ struct siop_xfer *siop_xfer; /* tables dealing with this xfer */ #define siop_tables siop_xfer->tables struct siop_cbd *siop_cbdp; /* pointer to our siop_cbd */ bus_addr_t dsa; /* DSA value to load */ bus_dmamap_t dmamap_cmd; bus_dmamap_t dmamap_data; struct scsi_sense rs_cmd; /* request sense command buffer */ int status; int flags; int reselslot; /* the reselect slot used */ int tag; /* tag used for tagged command queuing */ }; /* command block descriptors: an array of siop_cmd + an array of siop_xfer */ struct siop_cbd { TAILQ_ENTRY (siop_cbd) next; struct siop_cmd *cmds; struct siop_xfer *xfers; bus_dmamap_t xferdma; /* DMA map for this block of xfers */ }; /* status defs */ #define CMDST_FREE 0 /* cmd slot is free */ #define CMDST_READY 1 /* cmd slot is waiting for processing */ #define CMDST_ACTIVE 2 /* cmd slot is being processed */ #define CMDST_SENSE 3 /* cmd slot is requesting sense */ #define CMDST_SENSE_ACTIVE 4 /* request sense active */ #define CMDST_SENSE_DONE 5 /* request sense done */ #define CMDST_DONE 6 /* cmd slot has been processed */ /* flags defs */ #define CMDFL_TIMEOUT 0x0001 /* cmd timed out */ #define CMDFL_TAG 0x0002 /* tagged cmd */ /* per-tag struct */ struct siop_tag { struct siop_cmd *active; /* active command */ u_int reseloff; /* XXX */ }; /* per lun struct */ struct siop_lun { struct siop_tag siop_tag[SIOP_NTAG]; /* tag array */ int lun_flags; /* per-lun flags, see below */ u_int reseloff; /* XXX */ }; #define SIOP_LUNF_FULL 0x01 /* queue full message */ /* per-target struct */ struct siop_target { int status; /* target status, see below */ int flags; /* target flags, see below */ u_int32_t id; /* for SELECT FROM * 31-24 == SCNTL3 * 23-16 == SCSI id * 15- 8 == SXFER * 7- 0 == SCNTL4 */ struct siop_lun *siop_lun[8]; /* per-lun state */ u_int reseloff; /* XXX */ struct siop_lunsw *lunsw; /* XXX */ }; /* target status */ #define TARST_PROBING 0 /* target is being probed */ #define TARST_ASYNC 1 /* target needs sync/wide negotiation */ #define TARST_WIDE_NEG 2 /* target is doing wide negotiation */ #define TARST_SYNC_NEG 3 /* target is doing sync negotiation */ #define TARST_PPR_NEG 4 /* target is doing PPR (Parallel Protocol Request) */ #define TARST_OK 5 /* sync/wide agreement is valid */ /* target flags */ #define TARF_SYNC 0x01 /* target can do sync xfers */ #define TARF_WIDE 0x02 /* target can do wide xfers */ #define TARF_TAG 0x04 /* target can do taggged queuing */ #define TARF_PPR 0x08 /* target can do PPR negotiation */ #define TARF_ISWIDE 0x10 /* target is using wide xfers */ #define TARF_ISIUS 0x20 /* target is using IUS */ #define TARF_ISDT 0x40 /* target is using DT */ #define TARF_ISQAS 0x80 /* target is using QAS */ struct siop_lunsw { TAILQ_ENTRY (siop_lunsw) next; u_int32_t lunsw_off; /* offset of this lun sw, from sc_scriptaddr*/ u_int32_t lunsw_size; /* size of this lun sw */ }; static __inline__ void siop_table_sync(struct siop_cmd *, int); static __inline__ void siop_table_sync(siop_cmd, ops) struct siop_cmd *siop_cmd; int ops; { struct siop_softc *sc = siop_cmd->siop_sc; bus_addr_t offset; offset = siop_cmd->dsa - siop_cmd->siop_cbdp->xferdma->dm_segs[0].ds_addr; bus_dmamap_sync(sc->sc_dmat, siop_cmd->siop_cbdp->xferdma, offset, sizeof(struct siop_xfer), ops); } void siop_common_reset(struct siop_softc *); void siop_setuptables(struct siop_cmd *); int siop_modechange(struct siop_softc *); int siop_wdtr_neg(struct siop_cmd *); int siop_sdtr_neg(struct siop_cmd *); int siop_ppr_neg(struct siop_cmd *); void siop_sdtr_msg(struct siop_cmd *, int, int, int); void siop_wdtr_msg(struct siop_cmd *, int, int); void siop_ppr_msg(struct siop_cmd *, int, int, int); /* actions to take at return of siop__neg() */ #define SIOP_NEG_NOP 0x0 #define SIOP_NEG_MSGOUT 0x1 #define SIOP_NEG_ACK 0x2 #define SIOP_NEG_MSGREJ 0x3 void siop_print_info(struct siop_softc *, int); void siop_minphys(struct buf *); void siop_sdp(struct siop_cmd *); void siop_clearfifo(struct siop_softc *); void siop_resetbus(struct siop_softc *); int siop_period_factor_to_scf(struct siop_softc *, int, int); int siop_scf_to_period_factor(struct siop_softc *, int, int); /* XXXX should be callbacks */ void siop_add_dev(struct siop_softc *, int, int); void siop_del_dev(struct siop_softc *, int, int);