dm2s.h revision 25cf1a301a396c38e8adf52c15f537b80d2483f7
/*
* 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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _DDM2S_H
#define _DDM2S_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#define DM2S_MAX_SG 20 /* Max. scatter-gather elements */
#define DM2S_MAX_RETRIES 3 /* Max. number of retries */
/*
* Instance structure.
*/
typedef struct dm2s {
dev_info_t *ms_dip; /* Devinfo pointer */
major_t ms_major; /* Major number */
uint32_t ms_ppa; /* Device instance */
mkey_t ms_key; /* Mailbox key */
target_id_t ms_target; /* Target-id */
ddi_iblock_cookie_t ms_ibcookie; /* Interrupt block cookie */
kmutex_t ms_lock; /* Lock to protect this structure */
kcondvar_t ms_wait; /* Cond. var to signal events */
uint32_t ms_mtu; /* MTU supported */
queue_t *ms_rq; /* Read side queue */
queue_t *ms_wq; /* Write side queuee */
uint32_t ms_state; /* State of the device */
uint32_t ms_retries; /* Number of retries */
timeout_id_t ms_rq_timeoutid; /* Timeout id for read queue */
timeout_id_t ms_wq_timeoutid; /* Timeout id for write queue */
bufcall_id_t ms_rbufcid; /* Buffcall-id for the read */
uint64_t ms_obytes; /* Number of output bytes */
uint64_t ms_ibytes; /* Number of input bytes */
uint32_t ms_clean; /* Cleanup flags */
mscat_gath_t ms_sg_rcv; /* Scatter-gather for receive */
mscat_gath_t ms_sg_tx[DM2S_MAX_SG]; /* scatter-gather for Tx */
} dm2s_t;
/* ms_state flags */
#define DM2S_MB_INITED 0x00000001 /* Mailbox initialized */
#define DM2S_MB_CONN 0x00000002 /* Mailbox in connected state */
#define DM2S_MB_DISC 0x00000004 /* Mailbox is disconnected */
#define DM2S_OPENED 0x00000008 /* Device opened */
#define DM2S_MBOX_READY(x) ((x)->ms_state & DM2S_MB_CONN)
/* ms_clean flags */
#define DM2S_CLEAN_LOCK 0x00000001
#define DM2S_CLEAN_CV 0x00000002
#define DM2S_CLEAN_NODE 0x00000004
#ifdef DEBUG
/*
* Debug levels
*/
#define DBG_DRV 0x01 /* driver related traces */
#define DBG_MBOX 0x02 /* Mailbox traces */
#define DBG_MESG 0x04 /* Mailbox Message traces */
#define DBG_WARN 0x10 /* warning type traces */
static void dm2s_dump_bytes(char *str, uint32_t total_len,
uint32_t num_sg, mscat_gath_t *sgp);
#define DPRINTF(f, x) if (f & dm2s_debug) printf x
#define DMPBYTES(s, l, n, sg) dm2s_dump_bytes(s, l, n, sg)
#else /* DEBUG */
#define DPRINTF(f, x)
#define DMPBYTES(s, l, n, sg)
#endif /* DEBUG */
#ifdef __cplusplus
}
#endif
#endif /* _DDM2S_H */