223 lines
7.4 KiB
C
223 lines
7.4 KiB
C
/* $NetBSD: twavar.h,v 1.5 2006/07/11 00:25:42 simonb Exp $ */
|
|
/* $wasabi: twavar.h,v 1.12 2006/05/01 15:16:59 simonb Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2003-04 3ware, Inc.
|
|
* Copyright (c) 2000 Michael Smith
|
|
* Copyright (c) 2000 BSDi
|
|
* All rights reserved.
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD: src/sys/dev/twa/twa.h,v 1.4 2004/06/16 09:47:00 phk Exp $
|
|
*/
|
|
|
|
/*
|
|
* 3ware driver for 9000 series storage controllers.
|
|
*
|
|
* Author: Vinod Kashyap
|
|
*/
|
|
#ifndef _PCI_TWAVAR_H_
|
|
#define _PCI_TWAVAR_H_
|
|
|
|
#include "locators.h"
|
|
|
|
struct twa_callbacks {
|
|
void (*tcb_openings)(struct device *, int);
|
|
};
|
|
|
|
struct twa_drive {
|
|
uint32_t td_id;
|
|
uint64_t td_size;
|
|
struct device *td_dev;
|
|
const struct twa_callbacks *td_callbacks;
|
|
};
|
|
|
|
/* Per-controller structure. */
|
|
struct twa_softc {
|
|
struct device twa_dv;
|
|
bus_space_tag_t twa_bus_iot; /* bus space tag */
|
|
bus_space_handle_t twa_bus_ioh; /* bus space handle */
|
|
bus_dma_tag_t twa_dma_tag; /* data buffer DMA tag */
|
|
bus_dmamap_t twa_cmd_map; /* DMA map for the array of cmd pkts */
|
|
void *twa_ih; /* interrupt handle cookie */
|
|
caddr_t twa_cmds;
|
|
bus_addr_t twa_cmd_pkt_phys;/* phys addr of first of array of cmd pkts */
|
|
|
|
pci_chipset_tag_t pc;
|
|
pcitag_t tag;
|
|
/* Request queues and arrays. */
|
|
TAILQ_HEAD(, twa_request) twa_free; /* free request packets */
|
|
TAILQ_HEAD(, twa_request) twa_busy; /* requests busy in the controller */
|
|
TAILQ_HEAD(, twa_request) twa_pending; /* internal requests pending */
|
|
|
|
struct twa_request *twa_lookup[TWA_Q_LENGTH];/* requests indexed by request_id */
|
|
|
|
struct twa_request *twa_req_buf;
|
|
struct twa_command_packet *twa_cmd_pkt_buf;
|
|
|
|
struct twa_drive sc_units[TWA_MAX_UNITS];
|
|
/* AEN handler fields. */
|
|
struct tw_cl_event_packet *twa_aen_queue[TWA_Q_LENGTH];/* circular queue of AENs from firmware */
|
|
uint16_t working_srl; /* driver & firmware negotiated srl */
|
|
uint16_t working_branch; /* branch # of the firmware that the driver is compatible with */
|
|
uint16_t working_build; /* build # of the firmware that the driver is compatible with */
|
|
uint32_t twa_operating_mode; /* base mode/current mode */
|
|
uint32_t twa_aen_head; /* AEN queue head */
|
|
uint32_t twa_aen_tail; /* AEN queue tail */
|
|
uint32_t twa_current_sequence_id;/* index of the last event + 1 */
|
|
uint32_t twa_aen_queue_overflow; /* indicates if unretrieved events were overwritten */
|
|
uint32_t twa_aen_queue_wrapped; /* indicates if AEN queue ever wrapped */
|
|
/* Controller state. */
|
|
uint32_t twa_state;
|
|
uint32_t twa_sc_flags;
|
|
#ifdef TWA_DEBUG
|
|
struct twa_q_statistics twa_qstats[TWAQ_COUNT]; /* queue statistics */
|
|
#endif /* TWA_DEBUG */
|
|
|
|
struct _twa_ioctl_lock{
|
|
uint32_t lock; /* lock state */
|
|
uint32_t timeout; /* time at which the lock
|
|
* will become available,
|
|
* even if not released
|
|
*/
|
|
} twa_ioctl_lock; /* lock for use by user
|
|
* applications,
|
|
* for synchronization between
|
|
* ioctl calls
|
|
*/
|
|
int sc_openings;
|
|
int sc_nunits;
|
|
|
|
struct twa_request *sc_twa_request;
|
|
};
|
|
|
|
|
|
|
|
/* Possible values of tr->tr_status. */
|
|
#define TWA_CMD_SETUP 0x0 /* being assembled */
|
|
#define TWA_CMD_BUSY 0x1 /* submitted to controller */
|
|
#define TWA_CMD_PENDING 0x2 /* in pending queue */
|
|
#define TWA_CMD_COMPLETE 0x3 /* completed by controller */
|
|
|
|
/* Possible values of tr->tr_flags. */
|
|
#define TWA_CMD_DATA_IN (1 << 0)
|
|
#define TWA_CMD_DATA_OUT (1 << 1)
|
|
#define TWA_CMD_DATA_COPY_NEEDED (1 << 2)
|
|
#define TWA_CMD_SLEEP_ON_REQUEST (1 << 3)
|
|
#define TWA_CMD_IN_PROGRESS (1 << 4)
|
|
#define TWA_CMD_AEN (1 << 5)
|
|
#define TWA_CMD_AEN_BUSY (1 << 6)
|
|
|
|
/* Possible values of tr->tr_cmd_pkt_type. */
|
|
#define TWA_CMD_PKT_TYPE_7K (1<<0)
|
|
#define TWA_CMD_PKT_TYPE_9K (1<<1)
|
|
#define TWA_CMD_PKT_TYPE_INTERNAL (1<<2)
|
|
#define TWA_CMD_PKT_TYPE_IOCTL (1<<3)
|
|
#define TWA_CMD_PKT_TYPE_EXTERNAL (1<<4)
|
|
|
|
/* Possible values of sc->twa_state. */
|
|
#define TWA_STATE_INTR_ENABLED (1<<0) /* interrupts have been enabled */
|
|
#define TWA_STATE_SHUTDOWN (1<<1) /* controller is shut down */
|
|
#define TWA_STATE_OPEN (1<<2) /* control device is open */
|
|
#define TWA_STATE_SIMQ_FROZEN (1<<3) /* simq frozen */
|
|
#define TWA_STATE_REQUEST_WAIT (1<<4)
|
|
|
|
/* Possible values of sc->twa_ioctl_lock.lock. */
|
|
#define TWA_LOCK_FREE 0x0 /* lock is free */
|
|
#define TWA_LOCK_HELD 0x1 /* lock is held */
|
|
|
|
/* Driver's request packet. */
|
|
struct twa_request {
|
|
struct twa_command_packet *tr_command;
|
|
/* ptr to cmd pkt submitted to controller */
|
|
uint32_t tr_request_id;
|
|
/* request id for tracking with firmware */
|
|
void *tr_data;
|
|
/* ptr to data being passed to firmware */
|
|
size_t tr_length;
|
|
/* length of buffer being passed to firmware */
|
|
void *tr_real_data;
|
|
/* ptr to, and length of data passed */
|
|
size_t tr_real_length;
|
|
/* to us from above, in case a buffer copy
|
|
* was done due to non-compliance to
|
|
* alignment requirements
|
|
*/
|
|
TAILQ_ENTRY(twa_request) tr_link;
|
|
/* to link this request in a list */
|
|
struct twa_softc *tr_sc;
|
|
/* controller that owns us */
|
|
uint32_t tr_status;
|
|
/* command status */
|
|
uint32_t tr_flags;
|
|
/* request flags */
|
|
uint32_t tr_error;
|
|
/* error encountered before request submission */
|
|
uint32_t tr_cmd_pkt_type;
|
|
/* request specific data to use during callback */
|
|
void (*tr_callback)(struct twa_request *tr);
|
|
/* callback handler */
|
|
bus_addr_t tr_cmd_phys;
|
|
/* physical address of command in controller space */
|
|
bus_dmamap_t tr_dma_map;
|
|
/* DMA map for data */
|
|
struct buf *bp;
|
|
|
|
struct ld_twa_softc *tr_ld_sc;
|
|
};
|
|
|
|
static __inline size_t twa_get_maxsegs(void) {
|
|
size_t max_segs = ((MAXPHYS + PAGE_SIZE - 1) / PAGE_SIZE) + 1;
|
|
#ifdef TWA_SG_SIZE
|
|
if (TWA_MAX_SG_ELEMENTS < max_segs)
|
|
max_segs = TWA_MAX_SG_ELEMENTS;
|
|
#endif
|
|
return max_segs;
|
|
}
|
|
|
|
static __inline size_t twa_get_maxxfer(size_t maxsegs) {
|
|
return (maxsegs - 1) * PAGE_SIZE;
|
|
}
|
|
|
|
struct twa_attach_args {
|
|
int twaa_unit;
|
|
};
|
|
|
|
#define twaacf_unit cf_loc[TWACF_UNIT]
|
|
|
|
struct twa_request *twa_get_request(struct twa_softc *, int);
|
|
struct twa_request *twa_get_request_wait(struct twa_softc *, int);
|
|
int twa_map_request(struct twa_request *);
|
|
void twa_register_callbacks(struct twa_softc *sc, int unit,
|
|
const struct twa_callbacks *);
|
|
void twa_request_wait_handler(struct twa_request *);
|
|
void twa_release_request(struct twa_request *);
|
|
|
|
/* Error/AEN message structure. */
|
|
struct twa_message {
|
|
uint32_t code;
|
|
const char *message;
|
|
};
|
|
|
|
#endif /* !_PCI_TWAVAR_H_ */
|