f6c4dd3f48
interrupt handler from the upper half, etc. This fixes some serious stability problems that we were seeing on our production server. These patches have been tested for almost 6 months and are a highly recommended MFC candidate. Reviewed by: gibbs, merry, msmith MFC after: 4 days
2067 lines
59 KiB
C
2067 lines
59 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters.
|
|
*/
|
|
|
|
#include "opt_aac.h"
|
|
|
|
/* include <stddef.h> */
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#include <dev/aac/aac_compat.h>
|
|
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/devicestat.h>
|
|
#include <sys/disk.h>
|
|
#include <sys/file.h>
|
|
#include <sys/signalvar.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <dev/aac/aacreg.h>
|
|
#include <dev/aac/aac_ioctl.h>
|
|
#include <dev/aac/aacvar.h>
|
|
#include <dev/aac/aac_tables.h>
|
|
|
|
devclass_t aac_devclass;
|
|
|
|
static void aac_startup(void *arg);
|
|
|
|
/* Command Processing */
|
|
static void aac_startio(struct aac_softc *sc);
|
|
static void aac_timeout(struct aac_softc *sc);
|
|
static int aac_start(struct aac_command *cm);
|
|
static void aac_complete(void *context, int pending);
|
|
static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp);
|
|
static void aac_bio_complete(struct aac_command *cm);
|
|
static int aac_wait_command(struct aac_command *cm, int timeout);
|
|
static void aac_host_command(struct aac_softc *sc);
|
|
static void aac_host_response(struct aac_softc *sc);
|
|
|
|
/* Command Buffer Management */
|
|
static int aac_alloc_command(struct aac_softc *sc,
|
|
struct aac_command **cmp);
|
|
static void aac_release_command(struct aac_command *cm);
|
|
static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs,
|
|
int nseg, int error);
|
|
static int aac_alloc_commands(struct aac_softc *sc);
|
|
static void aac_free_commands(struct aac_softc *sc);
|
|
static void aac_map_command(struct aac_command *cm);
|
|
static void aac_unmap_command(struct aac_command *cm);
|
|
|
|
/* Hardware Interface */
|
|
static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg,
|
|
int error);
|
|
static int aac_init(struct aac_softc *sc);
|
|
static int aac_sync_command(struct aac_softc *sc, u_int32_t command,
|
|
u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
|
|
u_int32_t arg3, u_int32_t *sp);
|
|
static int aac_sync_fib(struct aac_softc *sc, u_int32_t command,
|
|
u_int32_t xferstate, void *data,
|
|
u_int16_t datasize, void *result,
|
|
u_int16_t *resultsize);
|
|
static int aac_enqueue_fib(struct aac_softc *sc, int queue,
|
|
struct aac_command *cm);
|
|
static int aac_dequeue_fib(struct aac_softc *sc, int queue,
|
|
u_int32_t *fib_size, struct aac_fib **fib_addr);
|
|
|
|
/* StrongARM interface */
|
|
static int aac_sa_get_fwstatus(struct aac_softc *sc);
|
|
static void aac_sa_qnotify(struct aac_softc *sc, int qbit);
|
|
static int aac_sa_get_istatus(struct aac_softc *sc);
|
|
static void aac_sa_clear_istatus(struct aac_softc *sc, int mask);
|
|
static void aac_sa_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);
|
|
static int aac_sa_get_mailboxstatus(struct aac_softc *sc);
|
|
static void aac_sa_set_interrupts(struct aac_softc *sc, int enable);
|
|
|
|
struct aac_interface aac_sa_interface = {
|
|
aac_sa_get_fwstatus,
|
|
aac_sa_qnotify,
|
|
aac_sa_get_istatus,
|
|
aac_sa_clear_istatus,
|
|
aac_sa_set_mailbox,
|
|
aac_sa_get_mailboxstatus,
|
|
aac_sa_set_interrupts
|
|
};
|
|
|
|
/* i960Rx interface */
|
|
static int aac_rx_get_fwstatus(struct aac_softc *sc);
|
|
static void aac_rx_qnotify(struct aac_softc *sc, int qbit);
|
|
static int aac_rx_get_istatus(struct aac_softc *sc);
|
|
static void aac_rx_clear_istatus(struct aac_softc *sc, int mask);
|
|
static void aac_rx_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);
|
|
static int aac_rx_get_mailboxstatus(struct aac_softc *sc);
|
|
static void aac_rx_set_interrupts(struct aac_softc *sc, int enable);
|
|
|
|
struct aac_interface aac_rx_interface = {
|
|
aac_rx_get_fwstatus,
|
|
aac_rx_qnotify,
|
|
aac_rx_get_istatus,
|
|
aac_rx_clear_istatus,
|
|
aac_rx_set_mailbox,
|
|
aac_rx_get_mailboxstatus,
|
|
aac_rx_set_interrupts
|
|
};
|
|
|
|
/* Debugging and Diagnostics */
|
|
static void aac_describe_controller(struct aac_softc *sc);
|
|
static char *aac_describe_code(struct aac_code_lookup *table,
|
|
u_int32_t code);
|
|
|
|
/* Management Interface */
|
|
static d_open_t aac_open;
|
|
static d_close_t aac_close;
|
|
static d_ioctl_t aac_ioctl;
|
|
static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib);
|
|
static void aac_handle_aif(struct aac_softc *sc,
|
|
struct aac_aif_command *aif);
|
|
#ifdef AAC_COMPAT_LINUX
|
|
static int aac_linux_rev_check(struct aac_softc *sc,
|
|
caddr_t udata);
|
|
static int aac_linux_getnext_aif(struct aac_softc *sc,
|
|
caddr_t arg);
|
|
static int aac_linux_return_aif(struct aac_softc *sc,
|
|
caddr_t uptr);
|
|
#endif
|
|
|
|
#define AAC_CDEV_MAJOR 150
|
|
|
|
static struct cdevsw aac_cdevsw = {
|
|
aac_open, /* open */
|
|
aac_close, /* close */
|
|
noread, /* read */
|
|
nowrite, /* write */
|
|
aac_ioctl, /* ioctl */
|
|
nopoll, /* poll */
|
|
nommap, /* mmap */
|
|
nostrategy, /* strategy */
|
|
"aac", /* name */
|
|
AAC_CDEV_MAJOR, /* major */
|
|
nodump, /* dump */
|
|
nopsize, /* psize */
|
|
0, /* flags */
|
|
};
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Device Interface
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Initialise the controller and softc
|
|
*/
|
|
int
|
|
aac_attach(struct aac_softc *sc)
|
|
{
|
|
int error, unit;
|
|
|
|
debug_called(1);
|
|
|
|
/*
|
|
* Initialise per-controller queues.
|
|
*/
|
|
aac_initq_free(sc);
|
|
aac_initq_ready(sc);
|
|
aac_initq_busy(sc);
|
|
aac_initq_complete(sc);
|
|
aac_initq_bio(sc);
|
|
|
|
#if __FreeBSD_version >= 500005
|
|
/*
|
|
* Initialise command-completion task.
|
|
*/
|
|
TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc);
|
|
#endif
|
|
|
|
/* disable interrupts before we enable anything */
|
|
AAC_MASK_INTERRUPTS(sc);
|
|
|
|
/* mark controller as suspended until we get ourselves organised */
|
|
sc->aac_state |= AAC_STATE_SUSPEND;
|
|
|
|
/*
|
|
* Allocate command structures.
|
|
*/
|
|
if ((error = aac_alloc_commands(sc)) != 0)
|
|
return(error);
|
|
|
|
/*
|
|
* Initialise the adapter.
|
|
*/
|
|
if ((error = aac_init(sc)) != 0)
|
|
return(error);
|
|
|
|
/*
|
|
* Print a little information about the controller.
|
|
*/
|
|
aac_describe_controller(sc);
|
|
|
|
/*
|
|
* Register to probe our containers later.
|
|
*/
|
|
sc->aac_ich.ich_func = aac_startup;
|
|
sc->aac_ich.ich_arg = sc;
|
|
if (config_intrhook_establish(&sc->aac_ich) != 0) {
|
|
device_printf(sc->aac_dev, "can't establish configuration hook\n");
|
|
return(ENXIO);
|
|
}
|
|
|
|
/*
|
|
* Make the control device.
|
|
*/
|
|
unit = device_get_unit(sc->aac_dev);
|
|
sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_WHEEL, 0644,
|
|
"aac%d", unit);
|
|
(void)make_dev_alias(sc->aac_dev_t, "afa%d", unit);
|
|
(void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit);
|
|
|
|
sc->aac_dev_t->si_drv1 = sc;
|
|
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Probe for containers, create disks.
|
|
*/
|
|
static void
|
|
aac_startup(void *arg)
|
|
{
|
|
struct aac_softc *sc = (struct aac_softc *)arg;
|
|
struct aac_mntinfo mi;
|
|
struct aac_mntinforesponse mir;
|
|
device_t child;
|
|
u_int16_t rsize;
|
|
int i;
|
|
|
|
debug_called(1);
|
|
|
|
/* disconnect ourselves from the intrhook chain */
|
|
config_intrhook_disestablish(&sc->aac_ich);
|
|
|
|
/* loop over possible containers */
|
|
mi.Command = VM_NameServe;
|
|
mi.MntType = FT_FILESYS;
|
|
for (i = 0; i < AAC_MAX_CONTAINERS; i++) {
|
|
/* request information on this container */
|
|
mi.MntCount = i;
|
|
rsize = sizeof(mir);
|
|
if (aac_sync_fib(sc, ContainerCommand, 0, &mi,
|
|
sizeof(struct aac_mntinfo), &mir, &rsize)) {
|
|
debug(2, "error probing container %d", i);
|
|
continue;
|
|
}
|
|
/* check response size */
|
|
if (rsize != sizeof(mir)) {
|
|
debug(2, "container info response wrong size (%d should be %d)",
|
|
rsize, sizeof(mir));
|
|
continue;
|
|
}
|
|
/*
|
|
* Check container volume type for validity. Note that many of the
|
|
* possible types may never show up.
|
|
*/
|
|
if ((mir.Status == ST_OK) && (mir.MntTable[0].VolType != CT_NONE)) {
|
|
debug(1, "%d: id %x name '%.16s' size %u type %d",
|
|
i, mir.MntTable[0].ObjectId,
|
|
mir.MntTable[0].FileSystemName, mir.MntTable[0].Capacity,
|
|
mir.MntTable[0].VolType);
|
|
|
|
if ((child = device_add_child(sc->aac_dev, NULL, -1)) == NULL) {
|
|
device_printf(sc->aac_dev, "device_add_child failed\n");
|
|
} else {
|
|
device_set_ivars(child, &sc->aac_container[i]);
|
|
}
|
|
device_set_desc(child, aac_describe_code(aac_container_types,
|
|
mir.MntTable[0].VolType));
|
|
sc->aac_container[i].co_disk = child;
|
|
sc->aac_container[i].co_mntobj = mir.MntTable[0];
|
|
}
|
|
}
|
|
|
|
/* poke the bus to actually attach the child devices */
|
|
if (bus_generic_attach(sc->aac_dev))
|
|
device_printf(sc->aac_dev, "bus_generic_attach failed\n");
|
|
|
|
/* mark the controller up */
|
|
sc->aac_state &= ~AAC_STATE_SUSPEND;
|
|
|
|
/* enable interrupts now */
|
|
AAC_UNMASK_INTERRUPTS(sc);
|
|
|
|
/* enable the timeout watchdog */
|
|
timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Free all of the resources associated with (sc)
|
|
*
|
|
* Should not be called if the controller is active.
|
|
*/
|
|
void
|
|
aac_free(struct aac_softc *sc)
|
|
{
|
|
debug_called(1);
|
|
|
|
/* remove the control device */
|
|
if (sc->aac_dev_t != NULL)
|
|
destroy_dev(sc->aac_dev_t);
|
|
|
|
/* throw away any FIB buffers, discard the FIB DMA tag */
|
|
if (sc->aac_fibs != NULL)
|
|
aac_free_commands(sc);
|
|
if (sc->aac_fib_dmat)
|
|
bus_dma_tag_destroy(sc->aac_fib_dmat);
|
|
|
|
/* destroy the common area */
|
|
if (sc->aac_common) {
|
|
bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap);
|
|
bus_dmamem_free(sc->aac_common_dmat, sc->aac_common,
|
|
sc->aac_common_dmamap);
|
|
}
|
|
if (sc->aac_common_dmat)
|
|
bus_dma_tag_destroy(sc->aac_common_dmat);
|
|
|
|
/* disconnect the interrupt handler */
|
|
if (sc->aac_intr)
|
|
bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr);
|
|
if (sc->aac_irq != NULL)
|
|
bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid,
|
|
sc->aac_irq);
|
|
|
|
/* destroy data-transfer DMA tag */
|
|
if (sc->aac_buffer_dmat)
|
|
bus_dma_tag_destroy(sc->aac_buffer_dmat);
|
|
|
|
/* destroy the parent DMA tag */
|
|
if (sc->aac_parent_dmat)
|
|
bus_dma_tag_destroy(sc->aac_parent_dmat);
|
|
|
|
/* release the register window mapping */
|
|
if (sc->aac_regs_resource != NULL)
|
|
bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, sc->aac_regs_rid,
|
|
sc->aac_regs_resource);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Disconnect from the controller completely, in preparation for unload.
|
|
*/
|
|
int
|
|
aac_detach(device_t dev)
|
|
{
|
|
struct aac_softc *sc = device_get_softc(dev);
|
|
int error;
|
|
|
|
debug_called(1);
|
|
|
|
if (sc->aac_state & AAC_STATE_OPEN)
|
|
return(EBUSY);
|
|
|
|
if ((error = aac_shutdown(dev)))
|
|
return(error);
|
|
|
|
aac_free(sc);
|
|
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Bring the controller down to a dormant state and detach all child devices.
|
|
*
|
|
* This function is called before detach or system shutdown.
|
|
*
|
|
* Note that we can assume that the bioq on the controller is empty, as we won't
|
|
* allow shutdown if any device is open.
|
|
*/
|
|
int
|
|
aac_shutdown(device_t dev)
|
|
{
|
|
struct aac_softc *sc = device_get_softc(dev);
|
|
struct aac_close_command cc;
|
|
int s, i;
|
|
|
|
debug_called(1);
|
|
|
|
s = splbio();
|
|
|
|
sc->aac_state |= AAC_STATE_SUSPEND;
|
|
|
|
/*
|
|
* Send a Container shutdown followed by a HostShutdown FIB to the
|
|
* controller to convince it that we don't want to talk to it anymore.
|
|
* We've been closed and all I/O completed already
|
|
*/
|
|
device_printf(sc->aac_dev, "shutting down controller...");
|
|
|
|
cc.Command = VM_CloseAll;
|
|
cc.ContainerId = 0xffffffff;
|
|
if (aac_sync_fib(sc, ContainerCommand, 0, &cc, sizeof(cc), NULL, NULL)) {
|
|
printf("FAILED.\n");
|
|
} else {
|
|
i = 0;
|
|
if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, &i,
|
|
sizeof(i), NULL, NULL)) {
|
|
printf("FAILED.\n");
|
|
} else {
|
|
printf("done.\n");
|
|
}
|
|
}
|
|
|
|
AAC_MASK_INTERRUPTS(sc);
|
|
|
|
splx(s);
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Bring the controller to a quiescent state, ready for system suspend.
|
|
*/
|
|
int
|
|
aac_suspend(device_t dev)
|
|
{
|
|
struct aac_softc *sc = device_get_softc(dev);
|
|
int s;
|
|
|
|
debug_called(1);
|
|
s = splbio();
|
|
|
|
sc->aac_state |= AAC_STATE_SUSPEND;
|
|
|
|
AAC_MASK_INTERRUPTS(sc);
|
|
splx(s);
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Bring the controller back to a state ready for operation.
|
|
*/
|
|
int
|
|
aac_resume(device_t dev)
|
|
{
|
|
struct aac_softc *sc = device_get_softc(dev);
|
|
|
|
debug_called(1);
|
|
sc->aac_state &= ~AAC_STATE_SUSPEND;
|
|
AAC_UNMASK_INTERRUPTS(sc);
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Take an interrupt.
|
|
*/
|
|
void
|
|
aac_intr(void *arg)
|
|
{
|
|
struct aac_softc *sc = (struct aac_softc *)arg;
|
|
u_int16_t reason;
|
|
|
|
debug_called(2);
|
|
|
|
reason = AAC_GET_ISTATUS(sc);
|
|
|
|
/* controller wants to talk to the log? XXX should we defer this? */
|
|
if (reason & AAC_DB_PRINTF) {
|
|
if (sc->aac_common->ac_printf[0]) {
|
|
device_printf(sc->aac_dev, "** %.*s", AAC_PRINTF_BUFSIZE,
|
|
sc->aac_common->ac_printf);
|
|
sc->aac_common->ac_printf[0] = 0;
|
|
}
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF);
|
|
AAC_QNOTIFY(sc, AAC_DB_PRINTF);
|
|
}
|
|
|
|
/* controller has a message for us? */
|
|
if (reason & AAC_DB_COMMAND_READY) {
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_READY);
|
|
aac_host_command(sc);
|
|
}
|
|
|
|
/* controller has a response for us? */
|
|
if (reason & AAC_DB_RESPONSE_READY) {
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY);
|
|
aac_host_response(sc);
|
|
}
|
|
|
|
/*
|
|
* spurious interrupts that we don't use - reset the mask and clear the
|
|
* interrupts
|
|
*/
|
|
if (reason & (AAC_DB_COMMAND_NOT_FULL | AAC_DB_RESPONSE_NOT_FULL)) {
|
|
AAC_UNMASK_INTERRUPTS(sc);
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_NOT_FULL |
|
|
AAC_DB_RESPONSE_NOT_FULL);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Command Processing
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Start as much queued I/O as possible on the controller
|
|
*/
|
|
static void
|
|
aac_startio(struct aac_softc *sc)
|
|
{
|
|
struct aac_command *cm;
|
|
|
|
debug_called(2);
|
|
|
|
for(;;) {
|
|
/* try to get a command that's been put off for lack of resources */
|
|
cm = aac_dequeue_ready(sc);
|
|
|
|
/* try to build a command off the bio queue (ignore error return) */
|
|
if (cm == NULL)
|
|
aac_bio_command(sc, &cm);
|
|
|
|
/* nothing to do? */
|
|
if (cm == NULL)
|
|
break;
|
|
|
|
/* try to give the command to the controller */
|
|
if (aac_start(cm) == EBUSY) {
|
|
/* put it on the ready queue for later */
|
|
aac_requeue_ready(cm);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Deliver a command to the controller; allocate controller resources at the
|
|
* last moment when possible.
|
|
*/
|
|
static int
|
|
aac_start(struct aac_command *cm)
|
|
{
|
|
struct aac_softc *sc = cm->cm_sc;
|
|
int error;
|
|
|
|
debug_called(2);
|
|
|
|
/* get the command mapped */
|
|
aac_map_command(cm);
|
|
|
|
/* fix up the address values in the FIB */
|
|
cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
|
|
cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
|
|
|
|
/* save a pointer to the command for speedy reverse-lookup */
|
|
cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical
|
|
* address issue */
|
|
|
|
/* put the FIB on the outbound queue */
|
|
error = aac_enqueue_fib(sc, AAC_ADAP_NORM_CMD_QUEUE, cm);
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Handle notification of one or more FIBs coming from the controller.
|
|
*/
|
|
static void
|
|
aac_host_command(struct aac_softc *sc)
|
|
{
|
|
struct aac_fib *fib;
|
|
u_int32_t fib_size;
|
|
|
|
debug_called(1);
|
|
|
|
for (;;) {
|
|
if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, &fib_size, &fib))
|
|
break; /* nothing to do */
|
|
|
|
switch(fib->Header.Command) {
|
|
case AifRequest:
|
|
aac_handle_aif(sc, (struct aac_aif_command *)&fib->data[0]);
|
|
break;
|
|
default:
|
|
device_printf(sc->aac_dev, "unknown command from controller\n");
|
|
AAC_PRINT_FIB(sc, fib);
|
|
break;
|
|
}
|
|
|
|
/* XXX reply to FIBs requesting responses ?? */
|
|
/* XXX how do we return these FIBs to the controller? */
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Handle notification of one or more FIBs completed by the controller
|
|
*/
|
|
static void
|
|
aac_host_response(struct aac_softc *sc)
|
|
{
|
|
struct aac_command *cm;
|
|
struct aac_fib *fib;
|
|
u_int32_t fib_size;
|
|
|
|
debug_called(2);
|
|
|
|
for (;;) {
|
|
/* look for completed FIBs on our queue */
|
|
if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, &fib))
|
|
break; /* nothing to do */
|
|
|
|
/* get the command, unmap and queue for later processing */
|
|
cm = (struct aac_command *)fib->Header.SenderData;
|
|
if (cm == NULL) {
|
|
AAC_PRINT_FIB(sc, fib);
|
|
} else {
|
|
aac_remove_busy(cm);
|
|
aac_unmap_command(cm); /* XXX defer? */
|
|
aac_enqueue_complete(cm);
|
|
}
|
|
}
|
|
|
|
/* handle completion processing */
|
|
#if __FreeBSD_version >= 500005
|
|
taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete);
|
|
#else
|
|
aac_complete(sc, 0);
|
|
#endif
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Process completed commands.
|
|
*/
|
|
static void
|
|
aac_complete(void *context, int pending)
|
|
{
|
|
struct aac_softc *sc = (struct aac_softc *)context;
|
|
struct aac_command *cm;
|
|
|
|
debug_called(2);
|
|
|
|
/* pull completed commands off the queue */
|
|
for (;;) {
|
|
cm = aac_dequeue_complete(sc);
|
|
if (cm == NULL)
|
|
break;
|
|
cm->cm_flags |= AAC_CMD_COMPLETED;
|
|
|
|
/* is there a completion handler? */
|
|
if (cm->cm_complete != NULL) {
|
|
cm->cm_complete(cm);
|
|
} else {
|
|
/* assume that someone is sleeping on this command */
|
|
wakeup(cm);
|
|
}
|
|
}
|
|
|
|
/* see if we can start some more I/O */
|
|
aac_startio(sc);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Handle a bio submitted from a disk device.
|
|
*/
|
|
void
|
|
aac_submit_bio(struct bio *bp)
|
|
{
|
|
struct aac_disk *ad = (struct aac_disk *)bp->bio_dev->si_drv1;
|
|
struct aac_softc *sc = ad->ad_controller;
|
|
|
|
debug_called(2);
|
|
|
|
/* queue the BIO and try to get some work done */
|
|
aac_enqueue_bio(sc, bp);
|
|
aac_startio(sc);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Get a bio and build a command to go with it.
|
|
*/
|
|
static int
|
|
aac_bio_command(struct aac_softc *sc, struct aac_command **cmp)
|
|
{
|
|
struct aac_command *cm;
|
|
struct aac_fib *fib;
|
|
struct aac_blockread *br;
|
|
struct aac_blockwrite *bw;
|
|
struct aac_disk *ad;
|
|
struct bio *bp;
|
|
|
|
debug_called(2);
|
|
|
|
/* get the resources we will need */
|
|
cm = NULL;
|
|
if ((bp = aac_dequeue_bio(sc)) == NULL)
|
|
goto fail;
|
|
if (aac_alloc_command(sc, &cm)) /* get a command */
|
|
goto fail;
|
|
|
|
/* fill out the command */
|
|
cm->cm_data = (void *)bp->bio_data;
|
|
cm->cm_datalen = bp->bio_bcount;
|
|
cm->cm_complete = aac_bio_complete;
|
|
cm->cm_private = bp;
|
|
cm->cm_timestamp = time_second;
|
|
|
|
/* build the FIB */
|
|
fib = cm->cm_fib;
|
|
fib->Header.XferState =
|
|
AAC_FIBSTATE_HOSTOWNED |
|
|
AAC_FIBSTATE_INITIALISED |
|
|
AAC_FIBSTATE_FROMHOST |
|
|
AAC_FIBSTATE_REXPECTED |
|
|
AAC_FIBSTATE_NORM;
|
|
fib->Header.Command = ContainerCommand;
|
|
fib->Header.Size = sizeof(struct aac_fib_header);
|
|
|
|
/* build the read/write request */
|
|
ad = (struct aac_disk *)bp->bio_dev->si_drv1;
|
|
if (BIO_IS_READ(bp)) {
|
|
br = (struct aac_blockread *)&fib->data[0];
|
|
br->Command = VM_CtBlockRead;
|
|
br->ContainerId = ad->ad_container->co_mntobj.ObjectId;
|
|
br->BlockNumber = bp->bio_pblkno;
|
|
br->ByteCount = bp->bio_bcount;
|
|
fib->Header.Size += sizeof(struct aac_blockread);
|
|
cm->cm_sgtable = &br->SgMap;
|
|
cm->cm_flags |= AAC_CMD_DATAIN;
|
|
} else {
|
|
bw = (struct aac_blockwrite *)&fib->data[0];
|
|
bw->Command = VM_CtBlockWrite;
|
|
bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
|
|
bw->BlockNumber = bp->bio_pblkno;
|
|
bw->ByteCount = bp->bio_bcount;
|
|
bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
|
|
fib->Header.Size += sizeof(struct aac_blockwrite);
|
|
cm->cm_flags |= AAC_CMD_DATAOUT;
|
|
cm->cm_sgtable = &bw->SgMap;
|
|
}
|
|
|
|
*cmp = cm;
|
|
return(0);
|
|
|
|
fail:
|
|
if (bp != NULL)
|
|
aac_enqueue_bio(sc, bp);
|
|
if (cm != NULL)
|
|
aac_release_command(cm);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Handle a bio-instigated command that has been completed.
|
|
*/
|
|
static void
|
|
aac_bio_complete(struct aac_command *cm)
|
|
{
|
|
struct aac_blockread_response *brr;
|
|
struct aac_blockwrite_response *bwr;
|
|
struct bio *bp;
|
|
AAC_FSAStatus status;
|
|
|
|
/* fetch relevant status and then release the command */
|
|
bp = (struct bio *)cm->cm_private;
|
|
if (BIO_IS_READ(bp)) {
|
|
brr = (struct aac_blockread_response *)&cm->cm_fib->data[0];
|
|
status = brr->Status;
|
|
} else {
|
|
bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0];
|
|
status = bwr->Status;
|
|
}
|
|
aac_release_command(cm);
|
|
|
|
/* fix up the bio based on status */
|
|
if (status == ST_OK) {
|
|
bp->bio_resid = 0;
|
|
} else {
|
|
bp->bio_error = EIO;
|
|
bp->bio_flags |= BIO_ERROR;
|
|
/* pass an error string out to the disk layer */
|
|
bp->bio_driver1 = aac_describe_code(aac_command_status_table, status);
|
|
}
|
|
aac_biodone(bp);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Submit a command to the controller, return when it completes.
|
|
*/
|
|
static int
|
|
aac_wait_command(struct aac_command *cm, int timeout)
|
|
{
|
|
int s, error = 0;
|
|
|
|
debug_called(2);
|
|
|
|
/* Put the command on the ready queue and get things going */
|
|
aac_enqueue_ready(cm);
|
|
aac_startio(cm->cm_sc);
|
|
s = splbio();
|
|
while(!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) {
|
|
error = tsleep(cm, PRIBIO, "aacwait", 0);
|
|
}
|
|
splx(s);
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Command Buffer Management
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Allocate a command.
|
|
*/
|
|
static int
|
|
aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp)
|
|
{
|
|
struct aac_command *cm;
|
|
|
|
debug_called(3);
|
|
|
|
if ((cm = aac_dequeue_free(sc)) == NULL)
|
|
return(ENOMEM);
|
|
|
|
*cmp = cm;
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Release a command back to the freelist.
|
|
*/
|
|
static void
|
|
aac_release_command(struct aac_command *cm)
|
|
{
|
|
debug_called(3);
|
|
|
|
/* (re)initialise the command/FIB */
|
|
cm->cm_sgtable = NULL;
|
|
cm->cm_flags = 0;
|
|
cm->cm_complete = NULL;
|
|
cm->cm_private = NULL;
|
|
cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY;
|
|
cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB;
|
|
cm->cm_fib->Header.Flags = 0;
|
|
cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib);
|
|
|
|
/*
|
|
* These are duplicated in aac_start to cover the case where an
|
|
* intermediate stage may have destroyed them. They're left
|
|
* initialised here for debugging purposes only.
|
|
*/
|
|
cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
|
|
cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
|
|
|
|
aac_enqueue_free(cm);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Map helper for command/FIB allocation.
|
|
*/
|
|
static void
|
|
aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct aac_softc *sc = (struct aac_softc *)arg;
|
|
|
|
debug_called(3);
|
|
|
|
sc->aac_fibphys = segs[0].ds_addr;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Allocate and initialise commands/FIBs for this adapter.
|
|
*/
|
|
static int
|
|
aac_alloc_commands(struct aac_softc *sc)
|
|
{
|
|
struct aac_command *cm;
|
|
int i;
|
|
|
|
debug_called(1);
|
|
|
|
/* allocate the FIBs in DMAable memory and load them */
|
|
if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs,
|
|
BUS_DMA_NOWAIT, &sc->aac_fibmap)) {
|
|
return(ENOMEM);
|
|
}
|
|
bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs,
|
|
AAC_FIB_COUNT * sizeof(struct aac_fib),
|
|
aac_map_command_helper, sc, 0);
|
|
|
|
/* initialise constant fields in the command structure */
|
|
for (i = 0; i < AAC_FIB_COUNT; i++) {
|
|
cm = &sc->aac_command[i];
|
|
cm->cm_sc = sc;
|
|
cm->cm_fib = sc->aac_fibs + i;
|
|
cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib));
|
|
|
|
if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap))
|
|
aac_release_command(cm);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Free FIBs owned by this adapter.
|
|
*/
|
|
static void
|
|
aac_free_commands(struct aac_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
debug_called(1);
|
|
|
|
for (i = 0; i < AAC_FIB_COUNT; i++)
|
|
bus_dmamap_destroy(sc->aac_buffer_dmat, sc->aac_command[i].cm_datamap);
|
|
bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap);
|
|
bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Command-mapping helper function - populate this command's s/g table.
|
|
*/
|
|
static void
|
|
aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct aac_command *cm = (struct aac_command *)arg;
|
|
struct aac_fib *fib = cm->cm_fib;
|
|
struct aac_sg_table *sg;
|
|
int i;
|
|
|
|
debug_called(3);
|
|
|
|
/* find the s/g table */
|
|
sg = cm->cm_sgtable;
|
|
|
|
/* copy into the FIB */
|
|
if (sg != NULL) {
|
|
sg->SgCount = nseg;
|
|
for (i = 0; i < nseg; i++) {
|
|
sg->SgEntry[i].SgAddress = segs[i].ds_addr;
|
|
sg->SgEntry[i].SgByteCount = segs[i].ds_len;
|
|
}
|
|
/* update the FIB size for the s/g count */
|
|
fib->Header.Size += nseg * sizeof(struct aac_sg_entry);
|
|
}
|
|
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Map a command into controller-visible space.
|
|
*/
|
|
static void
|
|
aac_map_command(struct aac_command *cm)
|
|
{
|
|
struct aac_softc *sc = cm->cm_sc;
|
|
|
|
debug_called(2);
|
|
|
|
/* don't map more than once */
|
|
if (cm->cm_flags & AAC_CMD_MAPPED)
|
|
return;
|
|
|
|
if (cm->cm_datalen != 0) {
|
|
bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, cm->cm_data,
|
|
cm->cm_datalen, aac_map_command_sg, cm, 0);
|
|
|
|
if (cm->cm_flags & AAC_CMD_DATAIN)
|
|
bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
|
|
BUS_DMASYNC_PREREAD);
|
|
if (cm->cm_flags & AAC_CMD_DATAOUT)
|
|
bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
|
|
BUS_DMASYNC_PREWRITE);
|
|
}
|
|
cm->cm_flags |= AAC_CMD_MAPPED;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Unmap a command from controller-visible space.
|
|
*/
|
|
static void
|
|
aac_unmap_command(struct aac_command *cm)
|
|
{
|
|
struct aac_softc *sc = cm->cm_sc;
|
|
|
|
debug_called(2);
|
|
|
|
if (!(cm->cm_flags & AAC_CMD_MAPPED))
|
|
return;
|
|
|
|
if (cm->cm_datalen != 0) {
|
|
if (cm->cm_flags & AAC_CMD_DATAIN)
|
|
bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
|
|
BUS_DMASYNC_POSTREAD);
|
|
if (cm->cm_flags & AAC_CMD_DATAOUT)
|
|
bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
|
|
bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap);
|
|
}
|
|
cm->cm_flags &= ~AAC_CMD_MAPPED;
|
|
}
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Hardware Interface
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Initialise the adapter.
|
|
*/
|
|
static void
|
|
aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct aac_softc *sc = (struct aac_softc *)arg;
|
|
|
|
debug_called(1);
|
|
|
|
sc->aac_common_busaddr = segs[0].ds_addr;
|
|
}
|
|
|
|
static int
|
|
aac_init(struct aac_softc *sc)
|
|
{
|
|
struct aac_adapter_init *ip;
|
|
time_t then;
|
|
u_int32_t code;
|
|
u_int8_t *qaddr;
|
|
|
|
debug_called(1);
|
|
|
|
/*
|
|
* First wait for the adapter to come ready.
|
|
*/
|
|
then = time_second;
|
|
do {
|
|
code = AAC_GET_FWSTATUS(sc);
|
|
if (code & AAC_SELF_TEST_FAILED) {
|
|
device_printf(sc->aac_dev, "FATAL: selftest failed\n");
|
|
return(ENXIO);
|
|
}
|
|
if (code & AAC_KERNEL_PANIC) {
|
|
device_printf(sc->aac_dev, "FATAL: controller kernel panic\n");
|
|
return(ENXIO);
|
|
}
|
|
if (time_second > (then + AAC_BOOT_TIMEOUT)) {
|
|
device_printf(sc->aac_dev, "FATAL: controller not coming ready, "
|
|
"status %x\n", code);
|
|
return(ENXIO);
|
|
}
|
|
} while (!(code & AAC_UP_AND_RUNNING));
|
|
|
|
/*
|
|
* Create DMA tag for the common structure and allocate it.
|
|
*/
|
|
if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
|
|
1, 0, /* algnmnt, boundary */
|
|
BUS_SPACE_MAXADDR, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
sizeof(struct aac_common), 1,/* maxsize, nsegments */
|
|
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
|
|
0, /* flags */
|
|
&sc->aac_common_dmat)) {
|
|
device_printf(sc->aac_dev, "can't allocate common structure DMA tag\n");
|
|
return(ENOMEM);
|
|
}
|
|
if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common,
|
|
BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) {
|
|
device_printf(sc->aac_dev, "can't allocate common structure\n");
|
|
return(ENOMEM);
|
|
}
|
|
bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, sc->aac_common,
|
|
sizeof(*sc->aac_common), aac_common_map, sc, 0);
|
|
bzero(sc->aac_common, sizeof(*sc->aac_common));
|
|
|
|
/*
|
|
* Fill in the init structure. This tells the adapter about the physical
|
|
* location of various important shared data structures.
|
|
*/
|
|
ip = &sc->aac_common->ac_init;
|
|
ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
|
|
|
|
ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr +
|
|
offsetof(struct aac_common, ac_fibs);
|
|
ip->AdapterFibsVirtualAddress = &sc->aac_common->ac_fibs[0];
|
|
ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib);
|
|
ip->AdapterFibAlign = sizeof(struct aac_fib);
|
|
|
|
ip->PrintfBufferAddress = sc->aac_common_busaddr +
|
|
offsetof(struct aac_common, ac_printf);
|
|
ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE;
|
|
|
|
ip->HostPhysMemPages = 0; /* not used? */
|
|
ip->HostElapsedSeconds = time_second; /* reset later if invalid */
|
|
|
|
/*
|
|
* Initialise FIB queues. Note that it appears that the layout of the
|
|
* indexes and the segmentation of the entries may be mandated by the
|
|
* adapter, which is only told about the base of the queue index fields.
|
|
*
|
|
* The initial values of the indices are assumed to inform the adapter
|
|
* of the sizes of the respective queues, and theoretically it could work
|
|
* out the entire layout of the queue structures from this. We take the
|
|
* easy route and just lay this area out like everyone else does.
|
|
*
|
|
* The Linux driver uses a much more complex scheme whereby several header
|
|
* records are kept for each queue. We use a couple of generic list
|
|
* manipulation functions which 'know' the size of each list by virtue of a
|
|
* table.
|
|
*/
|
|
qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN;
|
|
qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN;
|
|
sc->aac_queues = (struct aac_queue_table *)qaddr;
|
|
ip->CommHeaderAddress = sc->aac_common_busaddr + ((u_int32_t)sc->aac_queues
|
|
- (u_int32_t)sc->aac_common);
|
|
bzero(sc->aac_queues, sizeof(struct aac_queue_table));
|
|
|
|
sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_HOST_NORM_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_HOST_NORM_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_HOST_HIGH_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_HOST_HIGH_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_ADAP_NORM_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_ADAP_NORM_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_ADAP_HIGH_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_ADAP_HIGH_CMD_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_HOST_NORM_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_HOST_NORM_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_HOST_HIGH_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_HOST_HIGH_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_ADAP_NORM_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_ADAP_NORM_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX] =
|
|
AAC_ADAP_HIGH_RESP_ENTRIES;
|
|
sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX] =
|
|
AAC_ADAP_HIGH_RESP_ENTRIES;
|
|
sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] =
|
|
&sc->aac_queues->qt_HostNormCmdQueue[0];
|
|
sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] =
|
|
&sc->aac_queues->qt_HostHighCmdQueue[0];
|
|
sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] =
|
|
&sc->aac_queues->qt_AdapNormCmdQueue[0];
|
|
sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] =
|
|
&sc->aac_queues->qt_AdapHighCmdQueue[0];
|
|
sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] =
|
|
&sc->aac_queues->qt_HostNormRespQueue[0];
|
|
sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] =
|
|
&sc->aac_queues->qt_HostHighRespQueue[0];
|
|
sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] =
|
|
&sc->aac_queues->qt_AdapNormRespQueue[0];
|
|
sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] =
|
|
&sc->aac_queues->qt_AdapHighRespQueue[0];
|
|
|
|
/*
|
|
* Do controller-type-specific initialisation
|
|
*/
|
|
switch (sc->aac_hwif) {
|
|
case AAC_HWIF_I960RX:
|
|
AAC_SETREG4(sc, AAC_RX_ODBR, ~0);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Give the init structure to the controller.
|
|
*/
|
|
if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT,
|
|
sc->aac_common_busaddr + offsetof(struct aac_common,
|
|
ac_init), 0, 0, 0, NULL)) {
|
|
device_printf(sc->aac_dev, "error establishing init structure\n");
|
|
return(EIO);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Send a synchronous command to the controller and wait for a result.
|
|
*/
|
|
static int
|
|
aac_sync_command(struct aac_softc *sc, u_int32_t command,
|
|
u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3,
|
|
u_int32_t *sp)
|
|
{
|
|
time_t then;
|
|
u_int32_t status;
|
|
|
|
debug_called(3);
|
|
|
|
/* populate the mailbox */
|
|
AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3);
|
|
|
|
/* ensure the sync command doorbell flag is cleared */
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
|
|
|
|
/* then set it to signal the adapter */
|
|
AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND);
|
|
|
|
/* spin waiting for the command to complete */
|
|
then = time_second;
|
|
do {
|
|
if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) {
|
|
debug(2, "timed out");
|
|
return(EIO);
|
|
}
|
|
} while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND));
|
|
|
|
/* clear the completion flag */
|
|
AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
|
|
|
|
/* get the command status */
|
|
status = AAC_GET_MAILBOXSTATUS(sc);
|
|
if (sp != NULL)
|
|
*sp = status;
|
|
return(0);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Send a synchronous FIB to the controller and wait for a result.
|
|
*/
|
|
static int
|
|
aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate,
|
|
void *data, u_int16_t datasize,
|
|
void *result, u_int16_t *resultsize)
|
|
{
|
|
struct aac_fib *fib = &sc->aac_common->ac_sync_fib;
|
|
|
|
debug_called(3);
|
|
|
|
if (datasize > AAC_FIB_DATASIZE)
|
|
return(EINVAL);
|
|
|
|
/*
|
|
* Set up the sync FIB
|
|
*/
|
|
fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | AAC_FIBSTATE_INITIALISED |
|
|
AAC_FIBSTATE_EMPTY;
|
|
fib->Header.XferState |= xferstate;
|
|
fib->Header.Command = command;
|
|
fib->Header.StructType = AAC_FIBTYPE_TFIB;
|
|
fib->Header.Size = sizeof(struct aac_fib) + datasize;
|
|
fib->Header.SenderSize = sizeof(struct aac_fib);
|
|
fib->Header.SenderFibAddress = (u_int32_t)fib;
|
|
fib->Header.ReceiverFibAddress = sc->aac_common_busaddr +
|
|
offsetof(struct aac_common, ac_sync_fib);
|
|
|
|
/*
|
|
* Copy in data.
|
|
*/
|
|
if (data != NULL) {
|
|
KASSERT(datasize <= sizeof(fib->data),
|
|
"aac_sync_fib: datasize to large");
|
|
bcopy(data, fib->data, datasize);
|
|
fib->Header.XferState |= AAC_FIBSTATE_FROMHOST | AAC_FIBSTATE_NORM;
|
|
}
|
|
|
|
/*
|
|
* Give the FIB to the controller, wait for a response.
|
|
*/
|
|
if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, fib->Header.ReceiverFibAddress,
|
|
0, 0, 0, NULL)) {
|
|
debug(2, "IO error");
|
|
return(EIO);
|
|
}
|
|
|
|
/*
|
|
* Copy out the result
|
|
*/
|
|
if (result != NULL) {
|
|
u_int copysize;
|
|
|
|
copysize = fib->Header.Size - sizeof(struct aac_fib_header);
|
|
if (copysize > *resultsize)
|
|
copysize = *resultsize;
|
|
*resultsize = fib->Header.Size - sizeof(struct aac_fib_header);
|
|
bcopy(fib->data, result, copysize);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/********************************************************************************
|
|
* Adapter-space FIB queue manipulation
|
|
*
|
|
* Note that the queue implementation here is a little funky; neither the PI or
|
|
* CI will ever be zero. This behaviour is a controller feature.
|
|
*/
|
|
static struct {
|
|
int size;
|
|
int notify;
|
|
} aac_qinfo[] = {
|
|
{AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL},
|
|
{AAC_HOST_HIGH_CMD_ENTRIES, 0},
|
|
{AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY},
|
|
{AAC_ADAP_HIGH_CMD_ENTRIES, 0},
|
|
{AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL},
|
|
{AAC_HOST_HIGH_RESP_ENTRIES, 0},
|
|
{AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY},
|
|
{AAC_ADAP_HIGH_RESP_ENTRIES, 0}
|
|
};
|
|
|
|
/*
|
|
* Atomically insert an entry into the nominated queue, returns 0 on success or
|
|
* EBUSY if the queue is full.
|
|
*
|
|
* Note: it would be more efficient to defer notifying the controller in
|
|
* the case where we may be inserting several entries in rapid succession,
|
|
* but implementing this usefully may be difficult (it would involve a
|
|
* separate queue/notify interface).
|
|
*/
|
|
static int
|
|
aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm)
|
|
{
|
|
u_int32_t pi, ci;
|
|
int s, error;
|
|
u_int32_t fib_size;
|
|
u_int32_t fib_addr;
|
|
|
|
fib_size = cm->cm_fib->Header.Size;
|
|
fib_addr = cm->cm_fib->Header.ReceiverFibAddress;
|
|
|
|
debug_called(3);
|
|
|
|
s = splbio();
|
|
|
|
/* get the producer/consumer indices */
|
|
pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
|
|
ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
|
|
|
|
/* wrap the queue? */
|
|
if (pi >= aac_qinfo[queue].size)
|
|
pi = 0;
|
|
|
|
/* check for queue full */
|
|
if ((pi + 1) == ci) {
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
/* populate queue entry */
|
|
(sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
|
|
(sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
|
|
|
|
/* update producer index */
|
|
sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
|
|
|
|
/*
|
|
* To avoid a race with its completion interrupt, place this command on the
|
|
* busy queue prior to advertising it to the controller.
|
|
*/
|
|
aac_enqueue_busy(cm);
|
|
|
|
/* notify the adapter if we know how */
|
|
if (aac_qinfo[queue].notify != 0)
|
|
AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
|
|
|
|
error = 0;
|
|
|
|
out:
|
|
splx(s);
|
|
return(error);
|
|
}
|
|
|
|
/*
|
|
* Atomically remove one entry from the nominated queue, returns 0 on success or
|
|
* ENOENT if the queue is empty.
|
|
*/
|
|
static int
|
|
aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size,
|
|
struct aac_fib **fib_addr)
|
|
{
|
|
u_int32_t pi, ci;
|
|
int s, error;
|
|
int notify;
|
|
|
|
debug_called(3);
|
|
|
|
s = splbio();
|
|
|
|
/* get the producer/consumer indices */
|
|
pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
|
|
ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
|
|
|
|
/* check for queue empty */
|
|
if (ci == pi) {
|
|
error = ENOENT;
|
|
goto out;
|
|
}
|
|
|
|
notify = 0;
|
|
if (ci == pi + 1)
|
|
notify++;
|
|
|
|
/* wrap the queue? */
|
|
if (ci >= aac_qinfo[queue].size)
|
|
ci = 0;
|
|
|
|
/* fetch the entry */
|
|
*fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size;
|
|
*fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + ci)->aq_fib_addr;
|
|
|
|
/* update consumer index */
|
|
sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1;
|
|
|
|
/* if we have made the queue un-full, notify the adapter */
|
|
if (notify && (aac_qinfo[queue].notify != 0))
|
|
AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
|
|
error = 0;
|
|
|
|
out:
|
|
splx(s);
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Check for commands that have been outstanding for a suspiciously long time,
|
|
* and complain about them.
|
|
*/
|
|
static void
|
|
aac_timeout(struct aac_softc *sc)
|
|
{
|
|
int s;
|
|
struct aac_command *cm;
|
|
time_t deadline;
|
|
|
|
#if 0
|
|
/* simulate an interrupt to handle possibly-missed interrupts */
|
|
/*
|
|
* XXX This was done to work around another bug which has since been
|
|
* fixed. It is dangerous anyways because you don't want multiple
|
|
* threads in the interrupt handler at the same time! If calling
|
|
* is deamed neccesary in the future, proper mutexes must be used.
|
|
*/
|
|
s = splbio();
|
|
aac_intr(sc);
|
|
splx(s);
|
|
#endif
|
|
|
|
/* kick the I/O queue to restart it in the case of deadlock */
|
|
aac_startio(sc);
|
|
|
|
/* traverse the busy command list, bitch about late commands once only */
|
|
deadline = time_second - AAC_CMD_TIMEOUT;
|
|
s = splbio();
|
|
TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) {
|
|
if ((cm->cm_timestamp < deadline)
|
|
/* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) {
|
|
cm->cm_flags |= AAC_CMD_TIMEDOUT;
|
|
device_printf(sc->aac_dev, "COMMAND %p TIMEOUT AFTER %d SECONDS\n",
|
|
cm, (int)(time_second - cm->cm_timestamp));
|
|
AAC_PRINT_FIB(sc, cm->cm_fib);
|
|
}
|
|
}
|
|
splx(s);
|
|
|
|
/* reset the timer for next time */
|
|
timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz);
|
|
return;
|
|
}
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Interface Function Vectors
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Read the current firmware status word.
|
|
*/
|
|
static int
|
|
aac_sa_get_fwstatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(3);
|
|
|
|
return(AAC_GETREG4(sc, AAC_SA_FWSTATUS));
|
|
}
|
|
|
|
static int
|
|
aac_rx_get_fwstatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(3);
|
|
|
|
return(AAC_GETREG4(sc, AAC_RX_FWSTATUS));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Notify the controller of a change in a given queue
|
|
*/
|
|
|
|
static void
|
|
aac_sa_qnotify(struct aac_softc *sc, int qbit)
|
|
{
|
|
debug_called(3);
|
|
|
|
AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
|
|
}
|
|
|
|
static void
|
|
aac_rx_qnotify(struct aac_softc *sc, int qbit)
|
|
{
|
|
debug_called(3);
|
|
|
|
AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Get the interrupt reason bits
|
|
*/
|
|
static int
|
|
aac_sa_get_istatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(3);
|
|
|
|
return(AAC_GETREG2(sc, AAC_SA_DOORBELL0));
|
|
}
|
|
|
|
static int
|
|
aac_rx_get_istatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(3);
|
|
|
|
return(AAC_GETREG4(sc, AAC_RX_ODBR));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Clear some interrupt reason bits
|
|
*/
|
|
static void
|
|
aac_sa_clear_istatus(struct aac_softc *sc, int mask)
|
|
{
|
|
debug_called(3);
|
|
|
|
AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
|
|
}
|
|
|
|
static void
|
|
aac_rx_clear_istatus(struct aac_softc *sc, int mask)
|
|
{
|
|
debug_called(3);
|
|
|
|
AAC_SETREG4(sc, AAC_RX_ODBR, mask);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Populate the mailbox and set the command word
|
|
*/
|
|
static void
|
|
aac_sa_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)
|
|
{
|
|
debug_called(4);
|
|
|
|
AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
|
|
AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
|
|
AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
|
|
AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
|
|
AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
|
|
}
|
|
|
|
static void
|
|
aac_rx_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)
|
|
{
|
|
debug_called(4);
|
|
|
|
AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
|
|
AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
|
|
AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
|
|
AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
|
|
AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Fetch the immediate command status word
|
|
*/
|
|
static int
|
|
aac_sa_get_mailboxstatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(4);
|
|
|
|
return(AAC_GETREG4(sc, AAC_SA_MAILBOX));
|
|
}
|
|
|
|
static int
|
|
aac_rx_get_mailboxstatus(struct aac_softc *sc)
|
|
{
|
|
debug_called(4);
|
|
|
|
return(AAC_GETREG4(sc, AAC_RX_MAILBOX));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Set/clear interrupt masks
|
|
*/
|
|
static void
|
|
aac_sa_set_interrupts(struct aac_softc *sc, int enable)
|
|
{
|
|
debug(2, "%sable interrupts", enable ? "en" : "dis");
|
|
|
|
if (enable) {
|
|
AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
|
|
} else {
|
|
AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
aac_rx_set_interrupts(struct aac_softc *sc, int enable)
|
|
{
|
|
debug(2, "%sable interrupts", enable ? "en" : "dis");
|
|
|
|
if (enable) {
|
|
AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
|
|
} else {
|
|
AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Debugging and Diagnostics
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
* Print some information about the controller.
|
|
*/
|
|
static void
|
|
aac_describe_controller(struct aac_softc *sc)
|
|
{
|
|
u_int8_t buf[AAC_FIB_DATASIZE]; /* XXX really a bit big
|
|
* for the stack */
|
|
u_int16_t bufsize;
|
|
struct aac_adapter_info *info;
|
|
u_int8_t arg;
|
|
|
|
debug_called(2);
|
|
|
|
arg = 0;
|
|
bufsize = sizeof(buf);
|
|
if (aac_sync_fib(sc, RequestAdapterInfo, 0, &arg, sizeof(arg), &buf,
|
|
&bufsize)) {
|
|
device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
|
|
return;
|
|
}
|
|
if (bufsize != sizeof(*info)) {
|
|
device_printf(sc->aac_dev, "RequestAdapterInfo returned wrong data "
|
|
"size (%d != %d)\n", bufsize, sizeof(*info));
|
|
/*return;*/
|
|
}
|
|
info = (struct aac_adapter_info *)&buf[0];
|
|
|
|
device_printf(sc->aac_dev, "%s %dMHz, %dMB total memory, %s (%d)\n",
|
|
aac_describe_code(aac_cpu_variant, info->CpuVariant),
|
|
info->ClockSpeed, info->TotalMem / (1024 * 1024),
|
|
aac_describe_code(aac_battery_platform,
|
|
info->batteryPlatform), info->batteryPlatform);
|
|
|
|
/* save the kernel revision structure for later use */
|
|
sc->aac_revision = info->KernelRevision;
|
|
device_printf(sc->aac_dev, "Kernel %d.%d-%d, S/N %llx\n",
|
|
info->KernelRevision.external.comp.major,
|
|
info->KernelRevision.external.comp.minor,
|
|
info->KernelRevision.external.comp.dash,
|
|
info->SerialNumber); /* XXX format? */
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Look up a text description of a numeric error code and return a pointer to
|
|
* same.
|
|
*/
|
|
static char *
|
|
aac_describe_code(struct aac_code_lookup *table, u_int32_t code)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; table[i].string != NULL; i++)
|
|
if (table[i].code == code)
|
|
return(table[i].string);
|
|
return(table[i + 1].string);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*****************************************************************************
|
|
Management Interface
|
|
*****************************************************************************
|
|
*****************************************************************************/
|
|
|
|
static int
|
|
aac_open(dev_t dev, int flags, int fmt, struct proc *p)
|
|
{
|
|
struct aac_softc *sc = dev->si_drv1;
|
|
|
|
debug_called(2);
|
|
|
|
/* Check to make sure the device isn't already open */
|
|
if (sc->aac_state & AAC_STATE_OPEN) {
|
|
return EBUSY;
|
|
}
|
|
sc->aac_state |= AAC_STATE_OPEN;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
aac_close(dev_t dev, int flags, int fmt, struct proc *p)
|
|
{
|
|
struct aac_softc *sc = dev->si_drv1;
|
|
|
|
debug_called(2);
|
|
|
|
/* Mark this unit as no longer open */
|
|
sc->aac_state &= ~AAC_STATE_OPEN;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
|
|
{
|
|
union aac_statrequest *as = (union aac_statrequest *)arg;
|
|
struct aac_softc *sc = dev->si_drv1;
|
|
int error = 0;
|
|
#ifdef AAC_COMPAT_LINUX
|
|
int i;
|
|
#endif
|
|
|
|
debug_called(2);
|
|
|
|
switch (cmd) {
|
|
case AACIO_STATS:
|
|
switch (as->as_item) {
|
|
case AACQ_FREE:
|
|
case AACQ_BIO:
|
|
case AACQ_READY:
|
|
case AACQ_BUSY:
|
|
case AACQ_COMPLETE:
|
|
bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat,
|
|
sizeof(struct aac_qstat));
|
|
break;
|
|
default:
|
|
error = ENOENT;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
#ifdef AAC_COMPAT_LINUX
|
|
case FSACTL_SENDFIB:
|
|
debug(1, "FSACTL_SENDFIB");
|
|
error = aac_ioctl_sendfib(sc, arg);
|
|
break;
|
|
case FSACTL_AIF_THREAD:
|
|
debug(1, "FSACTL_AIF_THREAD");
|
|
error = EINVAL;
|
|
break;
|
|
case FSACTL_OPEN_GET_ADAPTER_FIB:
|
|
debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB");
|
|
/*
|
|
* Pass the caller out an AdapterFibContext.
|
|
*
|
|
* Note that because we only support one opener, we
|
|
* basically ignore this. Set the caller's context to a magic
|
|
* number just in case.
|
|
*
|
|
* The Linux code hands the driver a pointer into kernel space,
|
|
* and then trusts it when the caller hands it back. Aiee!
|
|
*/
|
|
i = AAC_AIF_SILLYMAGIC;
|
|
error = copyout(&i, arg, sizeof(i));
|
|
break;
|
|
case FSACTL_GET_NEXT_ADAPTER_FIB:
|
|
debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB");
|
|
error = aac_linux_getnext_aif(sc, arg);
|
|
break;
|
|
case FSACTL_CLOSE_GET_ADAPTER_FIB:
|
|
debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB");
|
|
/* don't do anything here */
|
|
break;
|
|
case FSACTL_MINIPORT_REV_CHECK:
|
|
debug(1, "FSACTL_MINIPORT_REV_CHECK");
|
|
error = aac_linux_rev_check(sc, arg);
|
|
break;
|
|
#endif
|
|
default:
|
|
device_printf(sc->aac_dev, "unsupported cmd 0x%lx\n", cmd);
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Send a FIB supplied from userspace
|
|
*/
|
|
static int
|
|
aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib)
|
|
{
|
|
struct aac_command *cm;
|
|
int size, error;
|
|
|
|
debug_called(2);
|
|
|
|
cm = NULL;
|
|
|
|
/*
|
|
* Get a command
|
|
*/
|
|
if (aac_alloc_command(sc, &cm)) {
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Fetch the FIB header, then re-copy to get data as well.
|
|
*/
|
|
if ((error = copyin(ufib, cm->cm_fib, sizeof(struct aac_fib_header))) != 0)
|
|
goto out;
|
|
size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header);
|
|
if (size > sizeof(struct aac_fib)) {
|
|
device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", size,
|
|
sizeof(struct aac_fib));
|
|
size = sizeof(struct aac_fib);
|
|
}
|
|
if ((error = copyin(ufib, cm->cm_fib, size)) != 0)
|
|
goto out;
|
|
cm->cm_fib->Header.Size = size;
|
|
cm->cm_timestamp = time_second;
|
|
|
|
/*
|
|
* Pass the FIB to the controller, wait for it to complete.
|
|
*/
|
|
if ((error = aac_wait_command(cm, 30)) != 0) /* XXX user timeout? */
|
|
goto out;
|
|
|
|
/*
|
|
* Copy the FIB and data back out to the caller.
|
|
*/
|
|
size = cm->cm_fib->Header.Size;
|
|
if (size > sizeof(struct aac_fib)) {
|
|
device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", size,
|
|
sizeof(struct aac_fib));
|
|
size = sizeof(struct aac_fib);
|
|
}
|
|
error = copyout(cm->cm_fib, ufib, size);
|
|
|
|
out:
|
|
if (cm != NULL) {
|
|
aac_release_command(cm);
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Handle an AIF sent to us by the controller; queue it for later reference.
|
|
*
|
|
* XXX what's the right thing to do here when the queue is full? Drop the older
|
|
* or newer entries?
|
|
*/
|
|
static void
|
|
aac_handle_aif(struct aac_softc *sc, struct aac_aif_command *aif)
|
|
{
|
|
int next, s;
|
|
|
|
debug_called(2);
|
|
|
|
s = splbio();
|
|
next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH;
|
|
if (next != sc->aac_aifq_tail) {
|
|
bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command));
|
|
sc->aac_aifq_head = next;
|
|
if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
|
|
wakeup(sc->aac_aifq);
|
|
}
|
|
splx(s);
|
|
aac_print_aif(sc, aif);
|
|
}
|
|
|
|
/******************************************************************************
|
|
******************************************************************************
|
|
Linux Management Interface
|
|
******************************************************************************
|
|
******************************************************************************/
|
|
|
|
#ifdef AAC_COMPAT_LINUX
|
|
|
|
#include <sys/proc.h>
|
|
#include <machine/../linux/linux.h>
|
|
#include <machine/../linux/linux_proto.h>
|
|
#include <compat/linux/linux_ioctl.h>
|
|
|
|
#define AAC_LINUX_IOCTL_MIN 0x2000
|
|
#define AAC_LINUX_IOCTL_MAX 0x21ff
|
|
|
|
static linux_ioctl_function_t aac_linux_ioctl;
|
|
static struct linux_ioctl_handler aac_handler = {aac_linux_ioctl,
|
|
AAC_LINUX_IOCTL_MIN,
|
|
AAC_LINUX_IOCTL_MAX};
|
|
|
|
SYSINIT (aac_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_register_handler, &aac_handler);
|
|
SYSUNINIT(aac_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_unregister_handler, &aac_handler);
|
|
|
|
MODULE_DEPEND(aac, linux, 1, 1, 1);
|
|
|
|
static int
|
|
aac_linux_ioctl(struct proc *p, struct linux_ioctl_args *args)
|
|
{
|
|
struct file *fp = p->p_fd->fd_ofiles[args->fd];
|
|
u_long cmd = args->cmd;
|
|
|
|
/*
|
|
* Pass the ioctl off to our standard handler.
|
|
*/
|
|
return(fo_ioctl(fp, cmd, (caddr_t)args->arg, p));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Return the Revision of the driver to userspace and check to see if the
|
|
* userspace app is possibly compatible. This is extremely bogus right now
|
|
* because I have no idea how to handle the versioning of this driver. It is
|
|
* needed, though, to get aaccli working.
|
|
*/
|
|
static int
|
|
aac_linux_rev_check(struct aac_softc *sc, caddr_t udata)
|
|
{
|
|
struct aac_rev_check rev_check;
|
|
struct aac_rev_check_resp rev_check_resp;
|
|
int error = 0;
|
|
|
|
debug_called(2);
|
|
|
|
/*
|
|
* Copyin the revision struct from userspace
|
|
*/
|
|
if ((error = copyin(udata, (caddr_t)&rev_check,
|
|
sizeof(struct aac_rev_check))) != 0) {
|
|
return error;
|
|
}
|
|
|
|
debug(2, "Userland revision= %d\n", rev_check.callingRevision.buildNumber);
|
|
|
|
/*
|
|
* Doctor up the response struct.
|
|
*/
|
|
rev_check_resp.possiblyCompatible = 1;
|
|
rev_check_resp.adapterSWRevision.external.ul = sc->aac_revision.external.ul;
|
|
rev_check_resp.adapterSWRevision.buildNumber = sc->aac_revision.buildNumber;
|
|
|
|
return(copyout((caddr_t)&rev_check_resp, udata,
|
|
sizeof(struct aac_rev_check_resp)));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Pass the caller the next AIF in their queue
|
|
*/
|
|
static int
|
|
aac_linux_getnext_aif(struct aac_softc *sc, caddr_t arg)
|
|
{
|
|
struct get_adapter_fib_ioctl agf;
|
|
int error, s;
|
|
|
|
debug_called(2);
|
|
|
|
if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
|
|
|
|
/*
|
|
* Check the magic number that we gave the caller.
|
|
*/
|
|
if (agf.AdapterFibContext != AAC_AIF_SILLYMAGIC) {
|
|
error = EFAULT;
|
|
} else {
|
|
|
|
s = splbio();
|
|
error = aac_linux_return_aif(sc, agf.AifFib);
|
|
|
|
if ((error == EAGAIN) && (agf.Wait)) {
|
|
sc->aac_state |= AAC_STATE_AIF_SLEEPER;
|
|
while (error == EAGAIN) {
|
|
error = tsleep(sc->aac_aifq, PRIBIO | PCATCH, "aacaif", 0);
|
|
if (error == 0)
|
|
error = aac_linux_return_aif(sc, agf.AifFib);
|
|
}
|
|
sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
|
|
}
|
|
splx(s);
|
|
}
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* Hand the next AIF off the top of the queue out to userspace.
|
|
*/
|
|
static int
|
|
aac_linux_return_aif(struct aac_softc *sc, caddr_t uptr)
|
|
{
|
|
int error, s;
|
|
|
|
debug_called(2);
|
|
|
|
s = splbio();
|
|
if (sc->aac_aifq_tail == sc->aac_aifq_head) {
|
|
error = EAGAIN;
|
|
} else {
|
|
error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr,
|
|
sizeof(struct aac_aif_command));
|
|
if (!error)
|
|
sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % AAC_AIFQ_LENGTH;
|
|
}
|
|
splx(s);
|
|
return(error);
|
|
}
|
|
|
|
|
|
#endif /* AAC_COMPAT_LINUX */
|