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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_1394_TARGETS_SCSA1394_CMD_H
#define _SYS_1394_TARGETS_SCSA1394_CMD_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* scsa1394 command
*/
#include <sys/scsi/scsi_types.h>
#include <sys/1394/targets/scsa1394/sbp2.h>
#include <sys/note.h>
#ifdef __cplusplus
extern "C" {
#endif
/* preferred pkt_private length in 64-bit quantities */
#ifdef _LP64
#define SCSA1394_CMD_PRIV_SIZE 2
#else /* _ILP32 */
#define SCSA1394_CMD_PRIV_SIZE 1
#endif
#define SCSA1394_CMD_PRIV_LEN (SCSA1394_CMD_PRIV_SIZE * sizeof (uint64_t))
/* entry describing a page table segment */
typedef struct scsa1394_cmd_seg {
size_t ss_len;
uint64_t ss_daddr;
uint64_t ss_baddr;
t1394_addr_handle_t ss_addr_hdl;
} scsa1394_cmd_seg_t;
/* command packet structure */
typedef struct scsa1394_cmd {
sbp2_task_t sc_task; /* corresponding SBP-2 task */
struct scsa1394_lun *sc_lun; /* lun it belongs to */
int sc_state; /* command state */
int sc_flags; /* command flags */
struct buf *sc_bp; /* data buffer */
struct scsi_pkt *sc_pkt; /* corresponding scsi pkt */
size_t sc_cdb_len;
size_t sc_cdb_actual_len;
size_t sc_scb_len;
size_t sc_priv_len;
uchar_t sc_cdb[SCSI_CDB_SIZE];
uchar_t sc_pkt_cdb[SCSI_CDB_SIZE];
struct scsi_arq_status sc_scb;
uint64_t sc_priv[SCSA1394_CMD_PRIV_SIZE];
clock_t sc_start_time;
int sc_timeout;
/* DMA: command ORB */
ddi_dma_handle_t sc_orb_dma_hdl;
ddi_acc_handle_t sc_orb_acc_hdl;
ddi_dma_cookie_t sc_orb_dmac;
t1394_addr_handle_t sc_orb_addr_hdl;
/* DMA: data buffer */
ddi_dma_handle_t sc_buf_dma_hdl;
uint_t sc_buf_nsegs; /* # of segments/cookies */
uint_t sc_buf_nsegs_alloc; /* # of entries allocated */
scsa1394_cmd_seg_t *sc_buf_seg; /* segment array */
scsa1394_cmd_seg_t sc_buf_seg_mem; /* backstore for one segment */
uint_t sc_nwin; /* # windows */
uint_t sc_curwin; /* current window */
off_t sc_win_offset; /* current window offset */
size_t sc_win_len; /* current window length */
size_t sc_xfer_bytes; /* current xfer byte count */
size_t sc_xfer_blks; /* current xfer blk count */
/* DMA: page table */
ddi_dma_handle_t sc_pt_dma_hdl;
ddi_acc_handle_t sc_pt_acc_hdl;
ddi_dma_cookie_t sc_pt_dmac;
caddr_t sc_pt_kaddr;
uint64_t sc_pt_baddr;
t1394_addr_handle_t sc_pt_addr_hdl;
size_t sc_pt_ent_alloc; /* # allocated entries */
int sc_pt_cmd_size;
/* for symbios mode only */
int sc_lba; /* start LBA */
int sc_blk_size; /* xfer block size */
size_t sc_total_blks; /* total xfer blocks */
size_t sc_resid_blks; /* blocks left */
struct scsi_pkt sc_scsi_pkt; /* must be last */
/* embedded SCSI packet */
/* ... scsi_pkt_size() */
} scsa1394_cmd_t;
#define SCSA1394_CMD_SIZE (sizeof (struct scsa1394_cmd) - \
sizeof (struct scsi_pkt) + scsi_pkt_size())
_NOTE(SCHEME_PROTECTS_DATA("unique per task", { scsa1394_cmd scsa1394_cmd_seg
scsi_pkt scsi_inquiry scsi_extended_sense scsi_cdb scsi_arq_status }))
#define PKT2CMD(pktp) ((scsa1394_cmd_t *)((pktp)->pkt_ha_private))
#define CMD2PKT(cmdp) ((struct scsi_pkt *)((cmdp)->sc_pkt))
#define TASK2CMD(task) ((scsa1394_cmd_t *)(task)->ts_drv_priv)
#define CMD2TASK(cmdp) ((sbp2_task_t *)&(cmdp)->sc_task)
/* state */
enum {
SCSA1394_CMD_INIT,
SCSA1394_CMD_START,
SCSA1394_CMD_STATUS
};
/* flags */
enum {
SCSA1394_CMD_CDB_EXT = 0x0001,
SCSA1394_CMD_PRIV_EXT = 0x0002,
SCSA1394_CMD_SCB_EXT = 0x0004,
SCSA1394_CMD_EXT = (SCSA1394_CMD_CDB_EXT |
SCSA1394_CMD_PRIV_EXT |
SCSA1394_CMD_SCB_EXT),
SCSA1394_CMD_DMA_CDB_VALID = 0x0008,
SCSA1394_CMD_DMA_BUF_BIND_VALID = 0x0010,
SCSA1394_CMD_DMA_BUF_PT_VALID = 0x0020,
SCSA1394_CMD_DMA_BUF_ADDR_VALID = 0x0040,
SCSA1394_CMD_DMA_BUF_VALID = (SCSA1394_CMD_DMA_BUF_BIND_VALID |
SCSA1394_CMD_DMA_BUF_ADDR_VALID |
SCSA1394_CMD_DMA_BUF_PT_VALID),
SCSA1394_CMD_DMA_BUF_MAPIN = 0x0080,
SCSA1394_CMD_READ = 0x0100,
SCSA1394_CMD_WRITE = 0x0200,
SCSA1394_CMD_RDWR = (SCSA1394_CMD_READ |
SCSA1394_CMD_WRITE),
SCSA1394_CMD_SYMBIOS_BREAKUP = 0x400
};
#ifdef __cplusplus
}
#endif
#endif /* _SYS_1394_TARGETS_SCSA1394_CMD_H */
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