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NetBSD/sys/dev/ic/icpvar.h

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/* $NetBSD: icpvar.h,v 1.13 2012/10/27 17:18:20 chs Exp $ */
/*-
* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran, and by Jason R. Thorpe of Wasabi Systems, Inc.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _IC_ICPVAR_H_
#define _IC_ICPVAR_H_
#include <sys/mutex.h>
#include <dev/ic/icp_ioctl.h>
/*
* Miscellaneous constants.
*/
#define ICP_RETRIES 6
#define ICP_WATCHDOG_FREQ 5
#define ICP_BUSY_WAIT_MS 2500
#define ICP_MAX_XFER 65536
#define ICP_UCMD_SCRATCH_SIZE 4096
#define ICP_SCRATCH_SIZE (8192 + ICP_UCMD_SCRATCH_SIZE)
#define ICP_SCRATCH_SENSE \
(ICP_SCRATCH_SIZE - sizeof(struct scsi_sense_data) * (ICP_NCCBS + ICP_NCCB_RESERVE))
#define ICP_SCRATCH_UCMD (ICP_SCRATCH_SENSE - ICP_UCMD_SCRATCH_SIZE)
#define ICP_NCCBS ICP_MAX_CMDS
#define ICP_NCCB_RESERVE 4
/*
* Context structure for interrupt service.
*/
struct icp_intr_ctx {
u_int32_t info;
u_int32_t info2;
u_int16_t cmd_status;
u_int16_t service;
u_int8_t istatus;
};
/*
* Command control block.
*/
struct icp_ccb {
SIMPLEQ_ENTRY(icp_ccb) ic_chain;
u_int ic_service;
u_int ic_flags;
u_int ic_status;
u_int ic_ident;
u_int ic_nsgent;
u_int ic_cmdlen;
u_int ic_xfer_size;
bus_dmamap_t ic_xfer_map;
struct icp_sg *ic_sg;
device_t ic_dv;
void *ic_context;
void (*ic_intr)(struct icp_ccb *);
struct icp_cmd ic_cmd;
};
#define IC_XFER_IN 0x01 /* Map describes inbound xfer */
#define IC_XFER_OUT 0x02 /* Map describes outbound xfer */
#define IC_WAITING 0x04 /* We have waiters */
#define IC_COMPLETE 0x08 /* Command completed */
#define IC_ALLOCED 0x10 /* CCB allocated */
#define IC_UCMD 0x20 /* user ioctl */
/*
* Logical drive information.
*/
struct icp_cachedrv {
u_int cd_size;
u_int cd_type;
};
/*
* Call-backs into the service back-ends (ld for cache service,
* icpsp for raw service).
*/
struct icp_servicecb {
void (*iscb_openings)(device_t, int);
};
/*
* Per-controller context.
*/
struct icp_softc {
device_t icp_dv;
void *icp_ih;
bus_dma_tag_t icp_dmat;
bus_space_tag_t icp_dpmemt;
bus_space_handle_t icp_dpmemh;
bus_addr_t icp_dpmembase;
bus_space_tag_t icp_iot;
bus_space_handle_t icp_ioh;
bus_addr_t icp_iobase;
int icp_class;
u_int16_t icp_fw_vers;
u_int16_t icp_ic_all_size;
u_int8_t icp_bus_cnt;
u_int8_t icp_bus_id[ICP_MAXBUS];
struct icp_cachedrv icp_cdr[ICP_MAX_HDRIVES];
const struct icp_servicecb *icp_servicecb[ICP_MAX_HDRIVES + ICP_MAXBUS];
device_t icp_children[ICP_MAX_HDRIVES + ICP_MAXBUS];
int icp_ndevs;
int icp_openings;
int icp_features;
int icp_nchan;
u_int32_t icp_info;
u_int32_t icp_info2;
u_int16_t icp_status;
u_int16_t icp_service;
bus_dmamap_t icp_scr_dmamap;
bus_dma_segment_t icp_scr_seg[1];
void * icp_scr;
struct icp_ccb *icp_ccbs;
u_int icp_nccbs;
u_int icp_flags;
u_int icp_qfreeze;
u_int icp_running;
SIMPLEQ_HEAD(,icp_ccb) icp_ccb_freelist;
SIMPLEQ_HEAD(,icp_ccb) icp_ccb_queue;
SIMPLEQ_HEAD(,icp_ccb) icp_ucmd_queue;
struct callout icp_wdog_callout;
struct icp_ccb *icp_ucmd_ccb;
/* Temporary buffer for event data. */
gdt_evt_data icp_evt;
void (*icp_copy_cmd)(struct icp_softc *, struct icp_ccb *);
u_int8_t (*icp_get_status)(struct icp_softc *);
void (*icp_intr)(struct icp_softc *, struct icp_intr_ctx *);
void (*icp_release_event)(struct icp_softc *,
struct icp_ccb *);
void (*icp_set_sema0)(struct icp_softc *);
int (*icp_test_busy)(struct icp_softc *);
/*
* This info is needed by the user ioctl interface needed to
* support the ICP configuration tools.
*/
int icp_pci_bus;
int icp_pci_device;
int icp_pci_device_id;
int icp_pci_subdevice_id;
};
/* icp_features */
#define ICP_FEAT_CACHESERVICE 0x01 /* cache service usable */
#define ICP_FEAT_RAWSERVICE 0x02 /* raw service usable */
/* icp_flags */
#define ICP_F_WAIT_CCB 0x01 /* someone waiting for CCBs */
#define ICP_F_WAIT_FREEZE 0x02 /* someone waiting for qfreeze */
#define ICP_HAS_WORK(icp) \
(! SIMPLEQ_EMPTY(&(icp)->icp_ccb_queue) || \
! SIMPLEQ_EMPTY(&(icp)->icp_ucmd_queue))
#define ICP_STAT_INCR(icp, x) \
do { \
/* XXX Globals, for now. XXX */ \
icp_stats. ## x ## _act++; \
if (icp_stats. ## x ## _act > icp_stats. ## x ## _max) \
icp_stats. ## x ## _max = icp_stats. ## x ## _act; \
} while (/*CONSTCOND*/0)
#define ICP_STAT_SET(icp, x, v) \
do { \
/* XXX Globals, for now. XXX */ \
icp_stats. ## x ## _act = (v); \
if (icp_stats. ## x ## _act > icp_stats. ## x ## _max) \
icp_stats. ## x ## _max = icp_stats. ## x ## _act; \
} while (/*CONSTCOND*/0)
#define ICP_STAT_DECR(icp, x) \
do { \
/* XXX Globals, for now. XXX */ \
icp_stats. ## x ## _act--; \
} while (/*CONSTCOND*/0)
#define ICP_ISA 0x01
#define ICP_EISA 0x02
#define ICP_PCI 0x03
#define ICP_PCINEW 0x04
#define ICP_MPR 0x05
#define ICP_CLASS_MASK 0x07
#define ICP_FC 0x10
#define ICP_CLASS(icp) ((icp)->icp_class & ICP_CLASS_MASK)
int icp_init(struct icp_softc *, const char *);
int icp_intr(void *);
extern int icp_count;
extern gdt_statist_t icp_stats;
/*
* Consumer interface.
*/
struct icp_attach_args {
int icpa_unit;
};
#define ICPA_UNIT_SCSI 100
struct icp_ccb *icp_ccb_alloc(struct icp_softc *);
struct icp_ccb *icp_ccb_alloc_wait(struct icp_softc *);
void icp_ccb_enqueue(struct icp_softc *, struct icp_ccb *);
void icp_ccb_free(struct icp_softc *, struct icp_ccb *);
int icp_ccb_map(struct icp_softc *, struct icp_ccb *, void *, int, int);
int icp_ccb_poll(struct icp_softc *, struct icp_ccb *, int);
void icp_ccb_unmap(struct icp_softc *, struct icp_ccb *);
int icp_ccb_wait(struct icp_softc *, struct icp_ccb *, int);
int icp_ccb_wait_user(struct icp_softc *, struct icp_ccb *, int);
int icp_cmd(struct icp_softc *, u_int8_t, u_int16_t, u_int32_t, u_int32_t,
u_int32_t);
int icp_ucmd(struct icp_softc *, gdt_ucmd_t *);
int icp_freeze(struct icp_softc *);
void icp_unfreeze(struct icp_softc *);
void icp_rescan(struct icp_softc *, int);
void icp_rescan_all(struct icp_softc *);
void icp_register_servicecb(struct icp_softc *, int,
const struct icp_servicecb *);
gdt_evt_str *icp_store_event(struct icp_softc *, u_int16_t, u_int16_t,
gdt_evt_data *);
int icp_read_event(struct icp_softc *, int, gdt_evt_str *);
void icp_readapp_event(struct icp_softc *, u_int8_t, gdt_evt_str *);
void icp_clear_events(struct icp_softc *);
extern kmutex_t icp_ioctl_mutex;
#endif /* !_IC_ICPVAR_H_ */
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