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freebsd/sys/dev/aac/aacvar.h
Ed Maste a723a5482e Allow simultaneous opens of the device for issuing commands to the 
controller.  This is merged from Adaptec driver build 11669.
2007-12-07 00:22:23 +00:00

636 lines
19 KiB
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/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2001 Scott Long
* Copyright (c) 2000 BSDi
* Copyright (c) 2001 Adaptec, Inc.
* 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.
*
* $FreeBSD$
*/
#include <sys/bio.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/taskqueue.h>
#include <sys/selinfo.h>
#include <geom/geom_disk.h>
#ifndef AAC_DRIVER_BUILD
# define AAC_DRIVER_BUILD 1
#endif
/*
* Driver Parameter Definitions
*/
/*
* The firmware interface allows for a 16-bit s/g list length. We limit
* ourselves to a reasonable maximum and ensure alignment.
*/
#define AAC_MAXSGENTRIES 64 /* max S/G entries, limit 65535 */
/*
* We allocate a small set of FIBs for the adapter to use to send us messages.
*/
#define AAC_ADAPTER_FIBS 8
/*
* FIBs are allocated in page-size chunks and can grow up to the 512
* limit imposed by the hardware.
*/
#define AAC_PREALLOCATE_FIBS 128
#define AAC_NUM_MGT_FIB 8
/*
* The controller reports status events in AIFs. We hang on to a number of
* these in order to pass them out to user-space management tools.
*/
#define AAC_AIFQ_LENGTH 64
/*
* Firmware messages are passed in the printf buffer.
*/
#define AAC_PRINTF_BUFSIZE 256
/*
* We wait this many seconds for the adapter to come ready if it is still
* booting
*/
#define AAC_BOOT_TIMEOUT (3 * 60)
/*
* Timeout for immediate commands.
*/
#define AAC_IMMEDIATE_TIMEOUT 30 /* seconds */
/*
* Timeout for normal commands
*/
#define AAC_CMD_TIMEOUT 30 /* seconds */
/*
* Rate at which we periodically check for timed out commands and kick the
* controller.
*/
#define AAC_PERIODIC_INTERVAL 20 /* seconds */
/*
* Per-container data structure
*/
struct aac_container
{
struct aac_mntobj co_mntobj;
device_t co_disk;
int co_found;
TAILQ_ENTRY(aac_container) co_link;
};
/*
* Per-SIM data structure
*/
struct aac_sim
{
device_t sim_dev;
int TargetsPerBus;
int BusNumber;
int InitiatorBusId;
struct aac_softc *aac_sc;
TAILQ_ENTRY(aac_sim) sim_link;
};
/*
* Per-disk structure
*/
struct aac_disk
{
device_t ad_dev;
struct aac_softc *ad_controller;
struct aac_container *ad_container;
struct disk *ad_disk;
int ad_flags;
#define AAC_DISK_OPEN (1<<0)
int ad_cylinders;
int ad_heads;
int ad_sectors;
u_int32_t ad_size;
int unit;
};
/*
* Per-command control structure.
*/
struct aac_command
{
TAILQ_ENTRY(aac_command) cm_link; /* list linkage */
struct aac_softc *cm_sc; /* controller that owns us */
struct aac_fib *cm_fib; /* FIB associated with this
* command */
u_int64_t cm_fibphys; /* bus address of the FIB */
struct bio *cm_data; /* pointer to data in kernel
* space */
u_int32_t cm_datalen; /* data length */
bus_dmamap_t cm_datamap; /* DMA map for bio data */
struct aac_sg_table *cm_sgtable; /* pointer to s/g table in
* command */
int cm_flags;
#define AAC_CMD_MAPPED (1<<0) /* command has had its data
* mapped */
#define AAC_CMD_DATAIN (1<<1) /* command involves data moving
* from controller to host */
#define AAC_CMD_DATAOUT (1<<2) /* command involves data moving
* from host to controller */
#define AAC_CMD_COMPLETED (1<<3) /* command has been completed */
#define AAC_CMD_TIMEDOUT (1<<4) /* command taken too long */
#define AAC_ON_AACQ_FREE (1<<5)
#define AAC_ON_AACQ_READY (1<<6)
#define AAC_ON_AACQ_BUSY (1<<7)
#define AAC_ON_AACQ_AIF (1<<8)
#define AAC_ON_AACQ_NORM (1<<10)
#define AAC_ON_AACQ_MASK ((1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<10))
#define AAC_QUEUE_FRZN (1<<9) /* Freeze the processing of
* commands on the queue. */
void (* cm_complete)(struct aac_command *cm);
void *cm_private;
time_t cm_timestamp; /* command creation time */
int cm_queue;
int cm_index;
};
struct aac_fibmap {
TAILQ_ENTRY(aac_fibmap) fm_link; /* list linkage */
struct aac_fib *aac_fibs;
bus_dmamap_t aac_fibmap;
struct aac_command *aac_commands;
};
/*
* We gather a number of adapter-visible items into a single structure.
*
* The ordering of this strucure may be important; we copy the Linux driver:
*
* Adapter FIBs
* Init struct
* Queue headers (Comm Area)
* Printf buffer
*
* In addition, we add:
* Sync Fib
*/
struct aac_common {
/* fibs for the controller to send us messages */
struct aac_fib ac_fibs[AAC_ADAPTER_FIBS];
/* the init structure */
struct aac_adapter_init ac_init;
/* arena within which the queue structures are kept */
u_int8_t ac_qbuf[sizeof(struct aac_queue_table) +
AAC_QUEUE_ALIGN];
/* buffer for text messages from the controller */
char ac_printf[AAC_PRINTF_BUFSIZE];
/* fib for synchronous commands */
struct aac_fib ac_sync_fib;
};
/*
* Interface operations
*/
struct aac_interface
{
int (*aif_get_fwstatus)(struct aac_softc *sc);
void (*aif_qnotify)(struct aac_softc *sc, int qbit);
int (*aif_get_istatus)(struct aac_softc *sc);
void (*aif_clr_istatus)(struct aac_softc *sc, int mask);
void (*aif_set_mailbox)(struct aac_softc *sc, u_int32_t command,
u_int32_t arg0, u_int32_t arg1,
u_int32_t arg2, u_int32_t arg3);
int (*aif_get_mailbox)(struct aac_softc *sc, int mb);
void (*aif_set_interrupts)(struct aac_softc *sc, int enable);
int (*aif_send_command)(struct aac_softc *sc, struct aac_command *cm);
int (*aif_get_outb_queue)(struct aac_softc *sc);
void (*aif_set_outb_queue)(struct aac_softc *sc, int index);
};
extern struct aac_interface aac_rx_interface;
extern struct aac_interface aac_sa_interface;
extern struct aac_interface aac_fa_interface;
extern struct aac_interface aac_rkt_interface;
#define AAC_GET_FWSTATUS(sc) ((sc)->aac_if.aif_get_fwstatus((sc)))
#define AAC_QNOTIFY(sc, qbit) ((sc)->aac_if.aif_qnotify((sc), (qbit)))
#define AAC_GET_ISTATUS(sc) ((sc)->aac_if.aif_get_istatus((sc)))
#define AAC_CLEAR_ISTATUS(sc, mask) ((sc)->aac_if.aif_clr_istatus((sc), \
(mask)))
#define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \
((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), (arg1), (arg2), \
(arg3)))
#define AAC_GET_MAILBOX(sc, mb) ((sc)->aac_if.aif_get_mailbox((sc), \
(mb)))
#define AAC_MASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \
0))
#define AAC_UNMASK_INTERRUPTS(sc) ((sc)->aac_if.aif_set_interrupts((sc), \
1))
#define AAC_SEND_COMMAND(sc, cm) ((sc)->aac_if.aif_send_command((sc), (cm)))
#define AAC_GET_OUTB_QUEUE(sc) ((sc)->aac_if.aif_get_outb_queue((sc)))
#define AAC_SET_OUTB_QUEUE(sc, idx) ((sc)->aac_if.aif_set_outb_queue((sc), (idx)))
#define AAC_SETREG4(sc, reg, val) bus_space_write_4(sc->aac_btag, \
sc->aac_bhandle, reg, val)
#define AAC_GETREG4(sc, reg) bus_space_read_4 (sc->aac_btag, \
sc->aac_bhandle, reg)
#define AAC_SETREG2(sc, reg, val) bus_space_write_2(sc->aac_btag, \
sc->aac_bhandle, reg, val)
#define AAC_GETREG2(sc, reg) bus_space_read_2 (sc->aac_btag, \
sc->aac_bhandle, reg)
#define AAC_SETREG1(sc, reg, val) bus_space_write_1(sc->aac_btag, \
sc->aac_bhandle, reg, val)
#define AAC_GETREG1(sc, reg) bus_space_read_1 (sc->aac_btag, \
sc->aac_bhandle, reg)
/* fib context (IOCTL) */
struct aac_fib_context {
u_int32_t unique;
int ctx_idx;
int ctx_wrap;
struct aac_fib_context *next, *prev;
};
/*
* Per-controller structure.
*/
struct aac_softc
{
/* bus connections */
device_t aac_dev;
struct resource *aac_regs_resource; /* register interface
* window */
int aac_regs_rid; /* resource ID */
bus_space_handle_t aac_bhandle; /* bus space handle */
bus_space_tag_t aac_btag; /* bus space tag */
bus_dma_tag_t aac_parent_dmat; /* parent DMA tag */
bus_dma_tag_t aac_buffer_dmat; /* data buffer/command
* DMA tag */
struct resource *aac_irq; /* interrupt */
int aac_irq_rid;
void *aac_intr; /* interrupt handle */
eventhandler_tag eh;
/* controller features, limits and status */
int aac_state;
#define AAC_STATE_SUSPEND (1<<0)
#define AAC_STATE_OPEN (1<<1)
#define AAC_STATE_INTERRUPTS_ON (1<<2)
#define AAC_STATE_AIF_SLEEPER (1<<3)
int aac_open_cnt;
struct FsaRevision aac_revision;
/* controller hardware interface */
int aac_hwif;
#define AAC_HWIF_I960RX 0
#define AAC_HWIF_STRONGARM 1
#define AAC_HWIF_FALCON 2
#define AAC_HWIF_RKT 3
#define AAC_HWIF_UNKNOWN -1
bus_dma_tag_t aac_common_dmat; /* common structure
* DMA tag */
bus_dmamap_t aac_common_dmamap; /* common structure
* DMA map */
struct aac_common *aac_common;
u_int32_t aac_common_busaddr;
struct aac_interface aac_if;
/* command/fib resources */
bus_dma_tag_t aac_fib_dmat; /* DMA tag for allocing FIBs */
TAILQ_HEAD(,aac_fibmap) aac_fibmap_tqh;
u_int total_fibs;
struct aac_command *aac_commands;
/* command management */
TAILQ_HEAD(,aac_command) aac_free; /* command structures
* available for reuse */
TAILQ_HEAD(,aac_command) aac_ready; /* commands on hold for
* controller resources */
TAILQ_HEAD(,aac_command) aac_busy;
TAILQ_HEAD(,aac_event) aac_ev_cmfree;
struct bio_queue_head aac_bioq;
struct aac_queue_table *aac_queues;
struct aac_queue_entry *aac_qentries[AAC_QUEUE_COUNT];
struct aac_qstat aac_qstat[AACQ_COUNT]; /* queue statistics */
/* connected containters */
TAILQ_HEAD(,aac_container) aac_container_tqh;
struct mtx aac_container_lock;
/*
* The general I/O lock. This protects the sync fib, the lists, the
* queues, and the registers.
*/
struct mtx aac_io_lock;
/* delayed activity infrastructure */
struct task aac_task_complete; /* deferred-completion
* task */
struct intr_config_hook aac_ich;
/* management interface */
struct cdev *aac_dev_t;
struct mtx aac_aifq_lock;
struct aac_fib aac_aifq[AAC_AIFQ_LENGTH];
int aifq_idx;
int aifq_filled;
struct aac_fib_context *fibctx;
struct selinfo rcv_select;
struct proc *aifthread;
int aifflags;
#define AAC_AIFFLAGS_RUNNING (1 << 0)
#define AAC_AIFFLAGS_AIF (1 << 1)
#define AAC_AIFFLAGS_EXIT (1 << 2)
#define AAC_AIFFLAGS_EXITED (1 << 3)
#define AAC_AIFFLAGS_PRINTF (1 << 4)
#define AAC_AIFFLAGS_ALLOCFIBS (1 << 5)
#define AAC_AIFFLAGS_PENDING (AAC_AIFFLAGS_AIF | AAC_AIFFLAGS_PRINTF | \
AAC_AIFFLAGS_ALLOCFIBS)
u_int32_t flags;
#define AAC_FLAGS_PERC2QC (1 << 0)
#define AAC_FLAGS_ENABLE_CAM (1 << 1) /* No SCSI passthrough */
#define AAC_FLAGS_CAM_NORESET (1 << 2) /* Fake SCSI resets */
#define AAC_FLAGS_CAM_PASSONLY (1 << 3) /* Only create pass devices */
#define AAC_FLAGS_SG_64BIT (1 << 4) /* Use 64-bit S/G addresses */
#define AAC_FLAGS_4GB_WINDOW (1 << 5) /* Device can access host mem
* 2GB-4GB range */
#define AAC_FLAGS_NO4GB (1 << 6) /* Can't access host mem >2GB */
#define AAC_FLAGS_256FIBS (1 << 7) /* Can only do 256 commands */
#define AAC_FLAGS_BROKEN_MEMMAP (1 << 8) /* Broken HostPhysMemPages */
#define AAC_FLAGS_SLAVE (1 << 9)
#define AAC_FLAGS_MASTER (1 << 10)
#define AAC_FLAGS_NEW_COMM (1 << 11) /* New comm. interface supported */
#define AAC_FLAGS_RAW_IO (1 << 12) /* Raw I/O interface */
#define AAC_FLAGS_ARRAY_64BIT (1 << 13) /* 64-bit array size */
u_int32_t supported_options;
u_int32_t scsi_method_id;
TAILQ_HEAD(,aac_sim) aac_sim_tqh;
u_int32_t aac_max_fibs; /* max. FIB count */
u_int32_t aac_max_fibs_alloc; /* max. alloc. per alloc_commands() */
u_int32_t aac_max_fib_size; /* max. FIB size */
u_int32_t aac_sg_tablesize; /* max. sg count from host */
u_int32_t aac_max_sectors; /* max. I/O size from host (blocks) */
};
/*
* Event callback mechanism for the driver
*/
#define AAC_EVENT_NONE 0x00
#define AAC_EVENT_CMFREE 0x01
#define AAC_EVENT_MASK 0xff
#define AAC_EVENT_REPEAT 0x100
typedef void aac_event_cb_t(struct aac_softc *sc, struct aac_event *event,
void *arg);
struct aac_event {
TAILQ_ENTRY(aac_event) ev_links;
int ev_type;
aac_event_cb_t *ev_callback;
void *ev_arg;
};
/*
* Public functions
*/
extern void aac_free(struct aac_softc *sc);
extern int aac_attach(struct aac_softc *sc);
extern int aac_detach(device_t dev);
extern int aac_shutdown(device_t dev);
extern int aac_suspend(device_t dev);
extern int aac_resume(device_t dev);
extern void aac_new_intr(void *arg);
extern int aac_fast_intr(void *arg);
extern void aac_submit_bio(struct bio *bp);
extern void aac_biodone(struct bio *bp);
extern void aac_startio(struct aac_softc *sc);
extern int aac_alloc_command(struct aac_softc *sc,
struct aac_command **cmp);
extern void aac_release_command(struct aac_command *cm);
extern int aac_sync_fib(struct aac_softc *sc, u_int32_t command,
u_int32_t xferstate, struct aac_fib *fib,
u_int16_t datasize);
extern void aac_add_event(struct aac_softc *sc, struct aac_event
*event);
/*
* Debugging levels:
* 0 - quiet, only emit warnings
* 1 - noisy, emit major function points and things done
* 2 - extremely noisy, emit trace items in loops, etc.
*/
#ifdef AAC_DEBUG
# define debug(level, fmt, args...) \
do { \
if (level <=AAC_DEBUG) printf("%s: " fmt "\n", __func__ , ##args); \
} while (0)
# define debug_called(level) \
do { \
if (level <= AAC_DEBUG) printf("%s: called\n", __func__); \
} while (0)
extern void aac_print_queues(struct aac_softc *sc);
extern void aac_panic(struct aac_softc *sc, char *reason);
extern void aac_print_fib(struct aac_softc *sc, struct aac_fib *fib,
const char *caller);
extern void aac_print_aif(struct aac_softc *sc,
struct aac_aif_command *aif);
#define AAC_PRINT_FIB(sc, fib) aac_print_fib(sc, fib, __func__)
#else
# define debug(level, fmt, args...)
# define debug_called(level)
# define aac_print_queues(sc)
# define aac_panic(sc, reason)
# define AAC_PRINT_FIB(sc, fib)
# define aac_print_aif(sc, aac_aif_command)
#endif
struct aac_code_lookup {
char *string;
u_int32_t code;
};
/*
* Queue primitives for driver queues.
*/
#define AACQ_ADD(sc, qname) \
do { \
struct aac_qstat *qs; \
\
qs = &(sc)->aac_qstat[qname]; \
\
qs->q_length++; \
if (qs->q_length > qs->q_max) \
qs->q_max = qs->q_length; \
} while (0)
#define AACQ_REMOVE(sc, qname) (sc)->aac_qstat[qname].q_length--
#define AACQ_INIT(sc, qname) \
do { \
sc->aac_qstat[qname].q_length = 0; \
sc->aac_qstat[qname].q_max = 0; \
} while (0)
#define AACQ_COMMAND_QUEUE(name, index) \
static __inline void \
aac_initq_ ## name (struct aac_softc *sc) \
{ \
TAILQ_INIT(&sc->aac_ ## name); \
AACQ_INIT(sc, index); \
} \
static __inline void \
aac_enqueue_ ## name (struct aac_command *cm) \
{ \
if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \
printf("command %p is on another queue, flags = %#x\n", \
cm, cm->cm_flags); \
panic("command is on another queue"); \
} \
TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link); \
cm->cm_flags |= AAC_ON_ ## index; \
AACQ_ADD(cm->cm_sc, index); \
} \
static __inline void \
aac_requeue_ ## name (struct aac_command *cm) \
{ \
if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \
printf("command %p is on another queue, flags = %#x\n", \
cm, cm->cm_flags); \
panic("command is on another queue"); \
} \
TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link); \
cm->cm_flags |= AAC_ON_ ## index; \
AACQ_ADD(cm->cm_sc, index); \
} \
static __inline struct aac_command * \
aac_dequeue_ ## name (struct aac_softc *sc) \
{ \
struct aac_command *cm; \
\
if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) { \
if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \
printf("command %p not in queue, flags = %#x, " \
"bit = %#x\n", cm, cm->cm_flags, \
AAC_ON_ ## index); \
panic("command not in queue"); \
} \
TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link); \
cm->cm_flags &= ~AAC_ON_ ## index; \
AACQ_REMOVE(sc, index); \
} \
return(cm); \
} \
static __inline void \
aac_remove_ ## name (struct aac_command *cm) \
{ \
if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \
printf("command %p not in queue, flags = %#x, " \
"bit = %#x\n", cm, cm->cm_flags, \
AAC_ON_ ## index); \
panic("command not in queue"); \
} \
TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link); \
cm->cm_flags &= ~AAC_ON_ ## index; \
AACQ_REMOVE(cm->cm_sc, index); \
} \
struct hack
AACQ_COMMAND_QUEUE(free, AACQ_FREE);
AACQ_COMMAND_QUEUE(ready, AACQ_READY);
AACQ_COMMAND_QUEUE(busy, AACQ_BUSY);
/*
* outstanding bio queue
*/
static __inline void
aac_initq_bio(struct aac_softc *sc)
{
bioq_init(&sc->aac_bioq);
AACQ_INIT(sc, AACQ_BIO);
}
static __inline void
aac_enqueue_bio(struct aac_softc *sc, struct bio *bp)
{
bioq_insert_tail(&sc->aac_bioq, bp);
AACQ_ADD(sc, AACQ_BIO);
}
static __inline struct bio *
aac_dequeue_bio(struct aac_softc *sc)
{
struct bio *bp;
if ((bp = bioq_first(&sc->aac_bioq)) != NULL) {
bioq_remove(&sc->aac_bioq, bp);
AACQ_REMOVE(sc, AACQ_BIO);
}
return(bp);
}
static __inline void
aac_print_printf(struct aac_softc *sc)
{
/*
* XXX We have the ability to read the length of the printf string
* from out of the mailboxes.
*/
device_printf(sc->aac_dev, "**Monitor** %.*s", AAC_PRINTF_BUFSIZE,
sc->aac_common->ac_printf);
sc->aac_common->ac_printf[0] = 0;
AAC_QNOTIFY(sc, AAC_DB_PRINTF);
}
static __inline int
aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib)
{
mtx_assert(&sc->aac_io_lock, MA_OWNED);
*fib = &sc->aac_common->ac_sync_fib;
return (0);
}
static __inline void
aac_release_sync_fib(struct aac_softc *sc)
{
mtx_assert(&sc->aac_io_lock, MA_OWNED);
}
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