268 lines
8.1 KiB
C
268 lines
8.1 KiB
C
/* $NetBSD: icpvar.h,v 1.7 2005/12/11 12:21:27 christos Exp $ */
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/*-
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* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran, and by Jason R. Thorpe of Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _IC_ICPVAR_H_
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#define _IC_ICPVAR_H_
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#include <dev/ic/icp_ioctl.h>
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/*
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* Miscellaneous constants.
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*/
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#define ICP_RETRIES 6
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#define ICP_WATCHDOG_FREQ 5
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#define ICP_BUSY_WAIT_MS 2500
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#define ICP_MAX_XFER 65536
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#define ICP_UCMD_SCRATCH_SIZE 4096
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#define ICP_SCRATCH_SIZE (8192 + ICP_UCMD_SCRATCH_SIZE)
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#define ICP_SCRATCH_SENSE \
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(ICP_SCRATCH_SIZE - sizeof(struct scsi_sense_data) * ICP_NCCBS)
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#define ICP_SCRATCH_UCMD (ICP_SCRATCH_SENSE - ICP_UCMD_SCRATCH_SIZE)
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#define ICP_NCCBS ICP_MAX_CMDS
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#define ICP_NCCB_RESERVE 4
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/*
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* Context structure for interrupt service.
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*/
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struct icp_intr_ctx {
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u_int32_t info;
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u_int32_t info2;
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u_int16_t cmd_status;
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u_int16_t service;
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u_int8_t istatus;
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};
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/*
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* Command control block.
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*/
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struct icp_ccb {
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SIMPLEQ_ENTRY(icp_ccb) ic_chain;
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u_int ic_service;
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u_int ic_flags;
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u_int ic_status;
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u_int ic_ident;
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u_int ic_nsgent;
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u_int ic_cmdlen;
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u_int ic_xfer_size;
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bus_dmamap_t ic_xfer_map;
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struct icp_sg *ic_sg;
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struct device *ic_dv;
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void *ic_context;
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void (*ic_intr)(struct icp_ccb *);
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struct icp_cmd ic_cmd;
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};
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#define IC_XFER_IN 0x01 /* Map describes inbound xfer */
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#define IC_XFER_OUT 0x02 /* Map describes outbound xfer */
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#define IC_WAITING 0x04 /* We have waiters */
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#define IC_COMPLETE 0x08 /* Command completed */
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#define IC_ALLOCED 0x10 /* CCB allocated */
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#define IC_UCMD 0x20 /* user ioctl */
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/*
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* Logical drive information.
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*/
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struct icp_cachedrv {
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u_int cd_size;
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u_int cd_type;
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};
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/*
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* Call-backs into the service back-ends (ld for cache service,
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* icpsp for raw service).
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*/
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struct icp_servicecb {
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void (*iscb_openings)(struct device *, int);
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};
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/*
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* Per-controller context.
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*/
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struct icp_softc {
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struct device icp_dv;
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void *icp_ih;
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bus_dma_tag_t icp_dmat;
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bus_space_tag_t icp_dpmemt;
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bus_space_handle_t icp_dpmemh;
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bus_addr_t icp_dpmembase;
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bus_space_tag_t icp_iot;
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bus_space_handle_t icp_ioh;
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bus_addr_t icp_iobase;
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int icp_class;
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u_int16_t icp_fw_vers;
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u_int16_t icp_ic_all_size;
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u_int8_t icp_bus_cnt;
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u_int8_t icp_bus_id[ICP_MAXBUS];
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struct icp_cachedrv icp_cdr[ICP_MAX_HDRIVES];
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const struct icp_servicecb *icp_servicecb[ICP_MAX_HDRIVES + ICP_MAXBUS];
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struct device *icp_children[ICP_MAX_HDRIVES + ICP_MAXBUS];
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int icp_ndevs;
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int icp_openings;
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int icp_features;
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int icp_nchan;
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u_int32_t icp_info;
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u_int32_t icp_info2;
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u_int16_t icp_status;
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u_int16_t icp_service;
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bus_dmamap_t icp_scr_dmamap;
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bus_dma_segment_t icp_scr_seg[1];
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caddr_t icp_scr;
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struct icp_ccb *icp_ccbs;
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u_int icp_nccbs;
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u_int icp_flags;
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u_int icp_qfreeze;
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u_int icp_running;
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SIMPLEQ_HEAD(,icp_ccb) icp_ccb_freelist;
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SIMPLEQ_HEAD(,icp_ccb) icp_ccb_queue;
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SIMPLEQ_HEAD(,icp_ccb) icp_ucmd_queue;
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struct callout icp_wdog_callout;
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struct icp_ccb *icp_ucmd_ccb;
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/* Temporary buffer for event data. */
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gdt_evt_data icp_evt;
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void (*icp_copy_cmd)(struct icp_softc *, struct icp_ccb *);
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u_int8_t (*icp_get_status)(struct icp_softc *);
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void (*icp_intr)(struct icp_softc *, struct icp_intr_ctx *);
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void (*icp_release_event)(struct icp_softc *,
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struct icp_ccb *);
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void (*icp_set_sema0)(struct icp_softc *);
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int (*icp_test_busy)(struct icp_softc *);
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/*
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* This info is needed by the user ioctl interface needed to
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* support the ICP configuration tools.
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*/
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int icp_pci_bus;
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int icp_pci_device;
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int icp_pci_device_id;
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int icp_pci_subdevice_id;
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};
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/* icp_features */
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#define ICP_FEAT_CACHESERVICE 0x01 /* cache service usable */
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#define ICP_FEAT_RAWSERVICE 0x02 /* raw service usable */
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/* icp_flags */
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#define ICP_F_WAIT_CCB 0x01 /* someone waiting for CCBs */
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#define ICP_F_WAIT_FREEZE 0x02 /* someone waiting for qfreeze */
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#define ICP_HAS_WORK(icp) \
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(! SIMPLEQ_EMPTY(&(icp)->icp_ccb_queue) || \
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! SIMPLEQ_EMPTY(&(icp)->icp_ucmd_queue))
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#define ICP_STAT_INCR(icp, x) \
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do { \
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/* XXX Globals, for now. XXX */ \
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icp_stats. ## x ## _act++; \
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if (icp_stats. ## x ## _act > icp_stats. ## x ## _max) \
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icp_stats. ## x ## _max = icp_stats. ## x ## _act; \
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} while (/*CONSTCOND*/0)
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#define ICP_STAT_SET(icp, x, v) \
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do { \
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/* XXX Globals, for now. XXX */ \
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icp_stats. ## x ## _act = (v); \
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if (icp_stats. ## x ## _act > icp_stats. ## x ## _max) \
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icp_stats. ## x ## _max = icp_stats. ## x ## _act; \
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} while (/*CONSTCOND*/0)
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#define ICP_STAT_DECR(icp, x) \
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do { \
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/* XXX Globals, for now. XXX */ \
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icp_stats. ## x ## _act--; \
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} while (/*CONSTCOND*/0)
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#define ICP_ISA 0x01
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#define ICP_EISA 0x02
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#define ICP_PCI 0x03
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#define ICP_PCINEW 0x04
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#define ICP_MPR 0x05
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#define ICP_CLASS_MASK 0x07
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#define ICP_FC 0x10
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#define ICP_CLASS(icp) ((icp)->icp_class & ICP_CLASS_MASK)
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int icp_init(struct icp_softc *, const char *);
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int icp_intr(void *);
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extern int icp_count;
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extern gdt_statist_t icp_stats;
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/*
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* Consumer interface.
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*/
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struct icp_attach_args {
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int icpa_unit;
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};
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#define ICPA_UNIT_SCSI 100
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struct icp_ccb *icp_ccb_alloc(struct icp_softc *);
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struct icp_ccb *icp_ccb_alloc_wait(struct icp_softc *);
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void icp_ccb_enqueue(struct icp_softc *, struct icp_ccb *);
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void icp_ccb_free(struct icp_softc *, struct icp_ccb *);
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int icp_ccb_map(struct icp_softc *, struct icp_ccb *, void *, int, int);
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int icp_ccb_poll(struct icp_softc *, struct icp_ccb *, int);
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void icp_ccb_unmap(struct icp_softc *, struct icp_ccb *);
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int icp_ccb_wait(struct icp_softc *, struct icp_ccb *, int);
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int icp_ccb_wait_user(struct icp_softc *, struct icp_ccb *, int);
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int icp_cmd(struct icp_softc *, u_int8_t, u_int16_t, u_int32_t, u_int32_t,
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u_int32_t);
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int icp_ucmd(struct icp_softc *, gdt_ucmd_t *);
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int icp_freeze(struct icp_softc *);
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void icp_unfreeze(struct icp_softc *);
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void icp_rescan(struct icp_softc *, int);
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void icp_rescan_all(struct icp_softc *);
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void icp_register_servicecb(struct icp_softc *, int,
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const struct icp_servicecb *);
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gdt_evt_str *icp_store_event(struct icp_softc *, u_int16_t, u_int16_t,
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gdt_evt_data *);
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int icp_read_event(struct icp_softc *, int, gdt_evt_str *);
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void icp_readapp_event(struct icp_softc *, u_int8_t, gdt_evt_str *);
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void icp_clear_events(struct icp_softc *);
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#endif /* !_IC_ICPVAR_H_ */
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