142 lines
5.1 KiB
C
142 lines
5.1 KiB
C
/* $NetBSD: siopvar_common.h,v 1.2 2000/05/23 17:08:07 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 */
|
|
typedef struct scr_table {
|
|
u_int32_t count;
|
|
u_int32_t addr;
|
|
} scr_table_t ;
|
|
|
|
/* Number of scatter/gather entries */
|
|
#define SIOP_NSG (MAXPHYS/NBPG + 1)
|
|
|
|
/*
|
|
* This structure interfaces the SCRIPT with the driver; it describes a full
|
|
* transfer. It lives in the same chunk of DMA-safe memory as the script.
|
|
*/
|
|
struct siop_xfer {
|
|
u_int8_t msg_out[8]; /* 0 */
|
|
u_int8_t msg_in[8]; /* 8 */
|
|
int status; /* 16 */
|
|
u_int32_t pad1; /* 20 */
|
|
u_int32_t id; /* 24 */
|
|
u_int32_t pad2; /* 28 */
|
|
scr_table_t t_msgin; /* 32 */
|
|
scr_table_t t_extmsgin; /* 40 */
|
|
scr_table_t t_extmsgdata; /* 48 */
|
|
scr_table_t t_msgtag; /* 56 */
|
|
scr_table_t t_msgout; /* 64 */
|
|
scr_table_t cmd; /* 72 */
|
|
scr_table_t t_status; /* 80 */
|
|
scr_table_t data[SIOP_NSG]; /* 88 */
|
|
} __attribute__((__packed__));
|
|
|
|
/*
|
|
* This decribes 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_target *siop_target; /* pointer to our target def */
|
|
struct scsipi_xfer *xs; /* xfer from the upper level */
|
|
struct siop_xfer *siop_table; /* tables dealing with this xfer */
|
|
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 scsipi_sense rs_cmd; /* request sense command buffer */
|
|
int status;
|
|
int flags;
|
|
};
|
|
|
|
/* 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 being 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 */
|
|
|
|
/* 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 */
|
|
struct cmd_list active_list[8]; /* per-lun active cmds */
|
|
struct siop_softc *siop_sc; /* points back to our adapter */
|
|
};
|
|
|
|
/* 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_OK 4 /* sync/wide agreement is valid */
|
|
|
|
/* target flags */
|
|
#define TARF_SYNC 0x00 /* target is sync */
|
|
#define TARF_WIDE 0x01 /* target is wide */
|
|
|
|
void siop_common_reset __P((struct siop_softc *));
|
|
|
|
int siop_wdtr_neg __P((struct siop_cmd *siop_cmd));
|
|
int siop_sdtr_neg __P((struct siop_cmd *siop_cmd));
|
|
/* actions to take at return of siop_wdtr_neg() and siop_sdtr_neg() */
|
|
#define SIOP_NEG_NOP 0x0
|
|
#define SIOP_NEG_MSGOUT 0x1
|
|
#define SIOP_NEG_ACK 0x2
|
|
|
|
void siop_minphys __P((struct buf *));
|
|
int siop_ioctl __P((struct scsipi_link *, u_long,
|
|
caddr_t, int, struct proc *));
|
|
void siop_sdp __P((struct siop_cmd *));
|
|
void siop_clearfifo __P((struct siop_softc *));
|