/*
* 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.
*
* 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.
*
*/
/* structure and definitions for the siop driver */
/* Number of tag */
#define SIOP_NTAG 16
/*
* xfer description of the script: tables and reselect script
* In struct siop_common_cmd siop_xfer will point to this.
*/
struct siop_xfer {
struct siop_common_xfer siop_tables;
/* uint32_t resel[sizeof(load_dsa) / sizeof(load_dsa[0])]; */
uint32_t resel[25];
} __packed;
/*
* This describes a command handled by the SCSI controller
* These are chained in either a free list or an active list
* We have one queue per target
*/
struct siop_cmd {
TAILQ_ENTRY (siop_cmd) next;
struct siop_common_cmd cmd_c;
struct siop_cbd *siop_cbdp; /* pointer to our siop_cbd */
int reselslot;
uint32_t saved_offset; /* offset in table after disc without sdp */
};
#define cmd_tables cmd_c.siop_tables
/* 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 */
};
/* per lun struct */
struct siop_lun {
struct siop_tag siop_tag[SIOP_NTAG]; /* tag array */
int lun_flags; /* per-lun flags, none currently */
u_int reseloff;
};
/*
* per target struct; siop_common_cmd->target and siop_common_softc->targets[]
* will point to this
*/
struct siop_target {
struct siop_common_target target_c;
struct siop_lun *siop_lun[8]; /* per-lun state */
u_int reseloff;
struct siop_lunsw *lunsw;
};
struct siop_lunsw {
TAILQ_ENTRY (siop_lunsw) next;
uint32_t lunsw_off; /* offset of this lun sw, from sc_scriptaddr*/
uint32_t lunsw_size; /* size of this lun sw */
};
