/********************************************************************************
* Bring the controller down to a dormant state and detach all child devices.
*
* Note that we can assume that the bioq on the controller is empty, as we won't
* allow shutdown if any device is open.
*/
static int
twe_shutdown(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
int i, error = 0;
debug_called(4);
/*
* Delete all our child devices.
*/
TWE_CONFIG_LOCK(sc);
for (i = 0; i < TWE_MAX_UNITS; i++) {
if (sc->twe_drive[i].td_disk != 0) {
if ((error = twe_detach_drive(sc, i)) != 0) {
TWE_CONFIG_UNLOCK(sc);
return (error);
}
}
}
TWE_CONFIG_UNLOCK(sc);
/*
* Bring the controller down.
*/
TWE_IO_LOCK(sc);
twe_deinit(sc);
TWE_IO_UNLOCK(sc);
return(0);
}
/********************************************************************************
* Handle an I/O request.
*/
static void
twed_strategy(struct bio *bp)
{
struct twed_softc *sc = bp->bio_disk->d_drv1;
debug_called(4);
bp->bio_driver1 = &sc->twed_drive->td_twe_unit;
TWED_BIO_IN;
/* bogus disk? */
if (sc == NULL || sc->twed_drive->td_disk == NULL) {
bp->bio_error = EINVAL;
bp->bio_flags |= BIO_ERROR;
printf("twe: bio for invalid disk!\n");
biodone(bp);
TWED_BIO_OUT;
return;
}
/* queue the bio on the controller */
TWE_IO_LOCK(sc->twed_controller);
twe_enqueue_bio(sc->twed_controller, bp);
/* poke the controller to start I/O */
twe_startio(sc->twed_controller);
TWE_IO_UNLOCK(sc->twed_controller);
return;
}
/********************************************************************************
* Disconnect from the controller completely, in preparation for unload.
*/
static int
twe_detach(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
debug_called(4);
TWE_IO_LOCK(sc);
if (sc->twe_state & TWE_STATE_OPEN) {
TWE_IO_UNLOCK(sc);
return (EBUSY);
}
sc->twe_state |= TWE_STATE_DETACHING;
TWE_IO_UNLOCK(sc);
/*
* Shut the controller down.
*/
if (twe_shutdown(dev)) {
TWE_IO_LOCK(sc);
sc->twe_state &= ~TWE_STATE_DETACHING;
TWE_IO_UNLOCK(sc);
return (EBUSY);
}
twe_free(sc);
return(0);
}
/********************************************************************************
* Handle an I/O request.
*/
static void
twed_strategy(twe_bio *bp)
{
struct twed_softc *sc = (struct twed_softc *)TWE_BIO_SOFTC(bp);
debug_called(4);
TWED_BIO_IN;
/* bogus disk? */
if (sc == NULL) {
TWE_BIO_SET_ERROR(bp, EINVAL);
printf("twe: bio for invalid disk!\n");
TWE_BIO_DONE(bp);
TWED_BIO_OUT;
return;
}
/* perform accounting */
TWE_BIO_STATS_START(bp);
/* queue the bio on the controller */
twe_enqueue_bio(sc->twed_controller, bp);
/* poke the controller to start I/O */
twe_startio(sc->twed_controller);
return;
}
/********************************************************************************
* Detach from CAM
*/
void
mly_cam_detach(struct mly_softc *sc)
{
int chn, nchn, first;
debug_called(1);
nchn = sc->mly_controllerinfo->physical_channels_present +
sc->mly_controllerinfo->virtual_channels_present;
/*
* Iterate over channels, deregistering as we go.
*/
nchn = sc->mly_controllerinfo->physical_channels_present +
sc->mly_controllerinfo->virtual_channels_present;
for (chn = 0, first = 1; chn < nchn; chn++) {
/*
* If a sim was registered for this channel, free it.
*/
if (sc->mly_cam_sim[chn] != NULL) {
debug(1, "deregister bus %d", chn);
xpt_bus_deregister(cam_sim_path(sc->mly_cam_sim[chn]));
debug(1, "free sim for channel %d (%sfree queue)", chn, first ? "" : "don't ");
cam_sim_free(sc->mly_cam_sim[chn], first ? TRUE : FALSE);
first = 0;
}
}
}
/*
* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
static void
mlxd_strategy(struct bio *bp)
{
struct mlxd_softc *sc = bp->bio_disk->d_drv1;
debug_called(1);
/* bogus disk? */
if (sc == NULL) {
bp->bio_error = EINVAL;
bp->bio_flags |= BIO_ERROR;
goto bad;
}
/* XXX may only be temporarily offline - sleep? */
MLX_IO_LOCK(sc->mlxd_controller);
if (sc->mlxd_drive->ms_state == MLX_SYSD_OFFLINE) {
MLX_IO_UNLOCK(sc->mlxd_controller);
bp->bio_error = ENXIO;
bp->bio_flags |= BIO_ERROR;
goto bad;
}
mlx_submit_buf(sc->mlxd_controller, bp);
MLX_IO_UNLOCK(sc->mlxd_controller);
return;
bad:
/*
* Correctly set the bio to indicate a failed tranfer.
*/
bp->bio_resid = bp->bio_bcount;
biodone(bp);
return;
}
/********************************************************************************
* Bring the controller down to a dormant state and detach all child devices.
*
* Note that we can assume that the bioq on the controller is empty, as we won't
* allow shutdown if any device is open.
*/
static int
twe_shutdown(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
int i, s, error;
debug_called(4);
s = splbio();
error = 0;
/*
* Delete all our child devices.
*/
for (i = 0; i < TWE_MAX_UNITS; i++) {
if (sc->twe_drive[i].td_disk != 0) {
if ((error = device_delete_child(sc->twe_dev, sc->twe_drive[i].td_disk)) != 0)
goto out;
sc->twe_drive[i].td_disk = 0;
}
}
/*
* Bring the controller down.
*/
twe_deinit(sc);
out:
splx(s);
return(error);
}
/********************************************************************************
* Bring the controller down to a dormant state and detach all child devices.
*
* This function is called before detach, system shutdown, or before performing
* an operation which may add or delete system disks. (Call amr_startup to
* resume normal operation.)
*
* Note that we can assume that the bioq on the controller is empty, as we won't
* allow shutdown if any device is open.
*/
static int
amr_pci_shutdown(device_t dev)
{
struct amr_softc *sc = device_get_softc(dev);
int i,error;
debug_called(1);
/* mark ourselves as in-shutdown */
sc->amr_state |= AMR_STATE_SHUTDOWN;
/* flush controller */
device_printf(sc->amr_dev, "flushing cache...");
printf("%s\n", amr_flush(sc) ? "failed" : "done");
error = 0;
/* delete all our child devices */
for(i = 0 ; i < AMR_MAXLD; i++) {
if( sc->amr_drive[i].al_disk != 0) {
if((error = device_delete_child(sc->amr_dev,sc->amr_drive[i].al_disk)) != 0)
goto shutdown_out;
sc->amr_drive[i].al_disk = 0;
}
}
/* XXX disable interrupts? */
shutdown_out:
return(error);
}
/********************************************************************************
* Free all of the resources associated with (sc).
*
* Should not be called if the controller is active.
*/
static void
twe_free(struct twe_softc *sc)
{
struct twe_request *tr;
debug_called(4);
/* throw away any command buffers */
while ((tr = twe_dequeue_free(sc)) != NULL)
twe_free_request(tr);
/* destroy the data-transfer DMA tag */
if (sc->twe_buffer_dmat)
bus_dma_tag_destroy(sc->twe_buffer_dmat);
/* disconnect the interrupt handler */
if (sc->twe_intr)
bus_teardown_intr(sc->twe_dev, sc->twe_irq, sc->twe_intr);
if (sc->twe_irq != NULL)
bus_release_resource(sc->twe_dev, SYS_RES_IRQ, 0, sc->twe_irq);
/* destroy the parent DMA tag */
if (sc->twe_parent_dmat)
bus_dma_tag_destroy(sc->twe_parent_dmat);
/* release the register window mapping */
if (sc->twe_io != NULL)
bus_release_resource(sc->twe_dev, SYS_RES_IOPORT, TWE_IO_CONFIG_REG, sc->twe_io);
/* destroy control device */
if (sc->twe_dev_t != (dev_t)NULL)
destroy_dev(sc->twe_dev_t);
}
/********************************************************************************
* Disconnect from the controller completely, in preparation for unload.
*/
static int
twe_detach(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
int s, error;
debug_called(4);
error = EBUSY;
s = splbio();
if (sc->twe_state & TWE_STATE_OPEN)
goto out;
/*
* Shut the controller down.
*/
if ((error = twe_shutdown(dev)))
goto out;
twe_free(sc);
error = 0;
out:
splx(s);
return(error);
}
static void
_inq(struct cam_sim *sim, union ccb *ccb)
{
struct ccb_pathinq *cpi = &ccb->cpi;
isc_session_t *sp = cam_sim_softc(sim);
debug_called(8);
debug(3, "sid=%d target=%d lun=%d", sp->sid, ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE | PI_WIDE_32;
cpi->target_sprt = 0;
cpi->hba_misc = 0;
cpi->hba_eng_cnt = 0;
cpi->max_target = 0; //ISCSI_MAX_TARGETS - 1;
cpi->initiator_id = ISCSI_MAX_TARGETS;
cpi->max_lun = sp->opt.maxluns - 1;
cpi->bus_id = cam_sim_bus(sim);
cpi->base_transfer_speed = 3300; // 40000; // XXX:
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "iSCSI", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->ccb_h.status = CAM_REQ_CMP;
#if defined(KNOB_VALID_ADDRESS)
cpi->transport = XPORT_ISCSI;
cpi->transport_version = 0;
#endif
}
/*
| this is a kludge,
| the jury is not back with a veredict, user or kernel
*/
static void
_nop_out(isc_session_t *sp)
{
pduq_t *pq;
nop_out_t *nop_out;
debug_called(8);
sdebug(4, "cws=%d", sp->cws);
if(sp->cws == 0) {
/*
| only send a nop if window is closed.
*/
if((pq = pdu_alloc(sp->isc, M_NOWAIT)) == NULL)
// I guess we ran out of resources
return;
nop_out = &pq->pdu.ipdu.nop_out;
nop_out->opcode = ISCSI_NOP_OUT;
nop_out->itt = htonl(sp->sn.itt);
nop_out->ttt = -1;
nop_out->I = 1;
nop_out->F = 1;
if(isc_qout(sp, pq) != 0) {
sdebug(1, "failed");
pdu_free(sp->isc, pq);
}
}
}
static int
ic_scan(isc_session_t *sp)
{
union ccb *ccb;
debug_called(8);
sdebug(2, "scanning sid=%d", sp->sid);
sp->flags &= ~ISC_CAMDEVS;
sp->flags |= ISC_SCANWAIT;
ccb = xpt_alloc_ccb();
ccb->ccb_h.path = sp->cam_path;
ccb->ccb_h.cbfcnp = scan_callback;
ccb->ccb_h.spriv_ptr0 = sp;
xpt_rescan(ccb);
while(sp->flags & ISC_SCANWAIT)
tsleep(sp, PRIBIO, "ffp", 5*hz); // the timeout time should
// be configurable
sdebug(2, "# of luns=%d", sp->target_nluns);
if(sp->target_nluns > 0) {
sp->flags |= ISC_CAMDEVS;
return 0;
}
return ENODEV;
}
static int
chapSHA1(char id, char *cp, char *chapSecret, unsigned char *digest)
{
SHA1_CTX ctx;
char *tmp;
int len;
debug_called(3);
SHA1_Init(&ctx);
SHA1_Update(&ctx, &id, 1);
if((len = str2bin(chapSecret, &tmp)) == 0) {
// print error
return -1;
}
SHA1_Update(&ctx, tmp, len);
free(tmp);
if((len = str2bin(cp, &tmp)) == 0) {
// print error
return -1;
}
SHA1_Update(&ctx, tmp, len);
free(tmp);
SHA1_Final(digest, &ctx);
return 0;
}
/*
* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
static void
mlxd_strategy(mlx_bio *bp)
{
struct mlxd_softc *sc = (struct mlxd_softc *)MLX_BIO_SOFTC(bp);
debug_called(1);
/* bogus disk? */
if (sc == NULL) {
MLX_BIO_SET_ERROR(bp, EINVAL);
goto bad;
}
/* XXX may only be temporarily offline - sleep? */
if (sc->mlxd_drive->ms_state == MLX_SYSD_OFFLINE) {
MLX_BIO_SET_ERROR(bp, ENXIO);
goto bad;
}
MLX_BIO_STATS_START(bp);
mlx_submit_buf(sc->mlxd_controller, bp);
return;
bad:
/*
* Correctly set the bio to indicate a failed tranfer.
*/
MLX_BIO_RESID(bp) = MLX_BIO_LENGTH(bp);
MLX_BIO_DONE(bp);
return;
}
static void
_reject(isc_session_t *sp, pduq_t *pq)
{
pduq_t *opq;
pdu_t *pdu;
reject_t *reject;
int itt;
debug_called(8);
pdu = mtod(pq->mp, pdu_t *);
itt = pdu->ipdu.bhs.itt;
reject = &pq->pdu.ipdu.reject;
sdebug(2, "itt=%x reason=0x%x", ntohl(itt), reject->reason);
opq = i_search_hld(sp, itt, 0);
if(opq != NULL)
iscsi_reject(sp, opq, pq);
else {
switch(pq->pdu.ipdu.bhs.opcode) {
case ISCSI_LOGOUT_CMD: // XXX: wasabi does this - can't figure out why
sdebug(2, "ISCSI_LOGOUT_CMD ...");
break;
default:
xdebug("%d] we lost something itt=%x",
sp->sid, ntohl(pq->pdu.ipdu.bhs.itt));
}
}
pdu_free(sp->isc, pq);
}
static trans_t
doLogin(isess_t *sess)
{
isc_opt_t *op = sess->op;
int status, count;
debug_called(3);
if(op->chapSecret == NULL && op->tgtChapSecret == NULL)
/*
| don't need any security negotiation
| or in other words: we don't have any secrets to exchange
*/
sess->csg = LON_PHASE;
else
sess->csg = SN_PHASE;
if(sess->tsih) {
sess->tsih = 0; // XXX: no 'reconnect' yet
sess->flags &= ~SESS_NEGODONE; // XXX: KLUDGE
}
count = 10; // should be more than enough
do {
debug(3, "count=%d csg=%d", count, sess->csg);
status = loginPhase(sess);
if(count-- == 0)
// just in case we get into a loop
status = -1;
} while(status == 0 && (sess->csg != FF_PHASE));
sess->flags &= ~SESS_INITIALLOGIN;
debug(3, "status=%d", status);
switch(status) {
case 0: // all is ok ...
sess->flags |= SESS_LOGGEDIN;
if(strcmp(sess->op->sessionType, "Discovery") == 0)
doDiscovery(sess);
return T5;
case 1: // redirect - temporary/permanent
/*
| start from scratch?
*/
sess->flags &= ~SESS_NEGODONE;
sess->flags |= (SESS_REDIRECT | SESS_INITIALLOGIN1);
syslog(LOG_DEBUG, "target sent REDIRECT");
return T7;
case 2: // initiator terminal error
return 0;
case 3: // target terminal error -- could retry ...
sleep(5);
return T7; // lets try
default:
return 0;
}
}
int
ic_init(isc_session_t *sp)
{
struct cam_sim *sim;
struct cam_devq *devq;
debug_called(8);
if((devq = cam_simq_alloc(256)) == NULL)
return ENOMEM;
#if __FreeBSD_version >= 700000
mtx_init(&sp->cam_mtx, "isc-cam", NULL, MTX_DEF);
#else
isp->cam_mtx = Giant;
#endif
sim = cam_sim_alloc(ic_action,
ic_poll,
"iscsi",
sp,
sp->sid, // unit
#if __FreeBSD_version >= 700000
&sp->cam_mtx,
#endif
1, // max_dev_transactions
0, // max_tagged_dev_transactions
devq);
if(sim == NULL) {
cam_simq_free(devq);
#if __FreeBSD_version >= 700000
mtx_destroy(&sp->cam_mtx);
#endif
return ENXIO;
}
CAM_LOCK(sp);
if(xpt_bus_register(sim,
#if __FreeBSD_version >= 700000
NULL,
#endif
0/*bus_number*/) != CAM_SUCCESS) {
cam_sim_free(sim, /*free_devq*/TRUE);
CAM_UNLOCK(sp);
#if __FreeBSD_version >= 700000
mtx_destroy(&sp->cam_mtx);
#endif
return ENXIO;
}
sp->cam_sim = sim;
CAM_UNLOCK(sp);
sdebug(1, "cam subsystem initialized");
ic_scan(sp);
return 0;
}
/********************************************************************************
* Check for possibly-completed commands.
*/
static void
mly_cam_poll(struct cam_sim *sim)
{
struct mly_softc *sc = cam_sim_softc(sim);
debug_called(2);
mly_done(sc);
}
static int
mlxd_probe(device_t dev)
{
debug_called(1);
device_set_desc(dev, "Mylex System Drive");
return (0);
}
static void
_async(isc_session_t *sp, pduq_t *pq)
{
debug_called(8);
iscsi_async(sp, pq);
pdu_free(sp->isc, pq);
}
/********************************************************************************
* Save the physical address of the memory mailbox
*/
static void
mly_mmbox_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct mly_softc *sc = (struct mly_softc *)arg;
debug_called(2);
sc->mly_mmbox_busaddr = segs->ds_addr;
}
static int
handleLoginResp(isess_t *sess, pdu_t *pp)
{
login_rsp_t *lp = (login_rsp_t *)pp;
uint st_class, status = ntohs(lp->status);
debug_called(3);
debug(4, "Tbit=%d csg=%d nsg=%d status=%x", lp->T, lp->CSG, lp->NSG, status);
st_class = status >> 8;
if(status) {
int st_detail = status & 0xff;
switch(st_class) {
case 1: // Redirect
switch(st_detail) {
// the ITN (iSCSI target Name) requests a:
case 1: // temporary address change
case 2: // permanent address change
status = 0;
}
break;
case 2: // Initiator Error
if(st_detail < CLASS1_ERRS)
printf("0x%04x: %s\n", status, status_class1[st_detail]);
break;
case 3:
if(st_detail < CLASS3_ERRS)
printf("0x%04x: %s\n", status, status_class3[st_detail]);
break;
}
}
if(status == 0) {
processParams(sess, pp);
setOptions(sess, 0); // XXX: just in case ...
if(lp->T) {
isc_opt_t *op = sess->op;
if(sess->csg == SN_PHASE && (op->tgtChapDigest != NULL))
if(handleTgtResp(sess, pp) != 0)
return 1; // XXX: Authentication failure ...
sess->csg = lp->NSG;
if(sess->csg == FF_PHASE) {
// XXX: will need this when implementing reconnect.
sess->tsih = lp->tsih;
debug(2, "TSIH=%x", sess->tsih);
}
}
}
return st_class;
}
/********************************************************************************
* Free all of the resources associated with (sc)
*
* Should not be called if the controller is active.
*/
static void
amr_pci_free(struct amr_softc *sc)
{
void *p;
debug_called(1);
amr_free(sc);
/* destroy data-transfer DMA tag */
if (sc->amr_buffer_dmat)
bus_dma_tag_destroy(sc->amr_buffer_dmat);
if (sc->amr_buffer64_dmat)
bus_dma_tag_destroy(sc->amr_buffer64_dmat);
/* free and destroy DMA memory and tag for passthrough pool */
if (sc->amr_ccb) {
bus_dmamap_unload(sc->amr_ccb_dmat, sc->amr_ccb_dmamap);
bus_dmamem_free(sc->amr_ccb_dmat, sc->amr_ccb, sc->amr_ccb_dmamap);
}
if (sc->amr_ccb_dmat)
bus_dma_tag_destroy(sc->amr_ccb_dmat);
/* free and destroy DMA memory and tag for s/g lists */
if (sc->amr_sgtable) {
bus_dmamap_unload(sc->amr_sg_dmat, sc->amr_sg_dmamap);
bus_dmamem_free(sc->amr_sg_dmat, sc->amr_sgtable, sc->amr_sg_dmamap);
}
if (sc->amr_sg_dmat)
bus_dma_tag_destroy(sc->amr_sg_dmat);
/* free and destroy DMA memory and tag for mailbox */
p = (void *)(uintptr_t)(volatile void *)sc->amr_mailbox64;
if (sc->amr_mailbox) {
bus_dmamap_unload(sc->amr_mailbox_dmat, sc->amr_mailbox_dmamap);
bus_dmamem_free(sc->amr_mailbox_dmat, p, sc->amr_mailbox_dmamap);
}
if (sc->amr_mailbox_dmat)
bus_dma_tag_destroy(sc->amr_mailbox_dmat);
/* disconnect the interrupt handler */
if (sc->amr_intr)
bus_teardown_intr(sc->amr_dev, sc->amr_irq, sc->amr_intr);
if (sc->amr_irq != NULL)
bus_release_resource(sc->amr_dev, SYS_RES_IRQ, 0, sc->amr_irq);
/* destroy the parent DMA tag */
if (sc->amr_parent_dmat)
bus_dma_tag_destroy(sc->amr_parent_dmat);
/* release the register window mapping */
if (sc->amr_reg != NULL)
bus_release_resource(sc->amr_dev,
AMR_IS_QUARTZ(sc) ? SYS_RES_MEMORY : SYS_RES_IOPORT,
PCIR_BAR(0), sc->amr_reg);
}
/********************************************************************************
* Free all of the resources associated with (sc)
*
* Should not be called if the controller is active.
*/
void
mly_free(struct mly_softc *sc)
{
struct mly_command_cluster *mcc;
debug_called(1);
/* detach from CAM */
mly_cam_detach(sc);
/* throw away any command buffers */
while ((mcc = mly_dequeue_cluster(sc)) != NULL)
mly_free_command_cluster(mcc);
/* throw away the controllerinfo structure */
if (sc->mly_controllerinfo != NULL)
free(sc->mly_controllerinfo, M_DEVBUF);
/* throw away the controllerparam structure */
if (sc->mly_controllerparam != NULL)
free(sc->mly_controllerparam, M_DEVBUF);
/* destroy data-transfer DMA tag */
if (sc->mly_buffer_dmat)
bus_dma_tag_destroy(sc->mly_buffer_dmat);
/* free and destroy DMA memory and tag for s/g lists */
if (sc->mly_sg_table) {
bus_dmamap_unload(sc->mly_sg_dmat, sc->mly_sg_dmamap);
bus_dmamem_free(sc->mly_sg_dmat, sc->mly_sg_table, sc->mly_sg_dmamap);
}
if (sc->mly_sg_dmat)
bus_dma_tag_destroy(sc->mly_sg_dmat);
/* free and destroy DMA memory and tag for memory mailbox */
if (sc->mly_mmbox) {
bus_dmamap_unload(sc->mly_mmbox_dmat, sc->mly_mmbox_dmamap);
bus_dmamem_free(sc->mly_mmbox_dmat, sc->mly_mmbox, sc->mly_mmbox_dmamap);
}
if (sc->mly_mmbox_dmat)
bus_dma_tag_destroy(sc->mly_mmbox_dmat);
/* disconnect the interrupt handler */
if (sc->mly_intr)
bus_teardown_intr(sc->mly_dev, sc->mly_irq, sc->mly_intr);
if (sc->mly_irq != NULL)
bus_release_resource(sc->mly_dev, SYS_RES_IRQ, sc->mly_irq_rid, sc->mly_irq);
/* destroy the parent DMA tag */
if (sc->mly_parent_dmat)
bus_dma_tag_destroy(sc->mly_parent_dmat);
/* release the register window mapping */
if (sc->mly_regs_resource != NULL)
bus_release_resource(sc->mly_dev, SYS_RES_MEMORY, sc->mly_regs_rid, sc->mly_regs_resource);
}
/********************************************************************************
* Save the physical address of the base of the s/g table.
*/
static void
mly_sg_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct mly_softc *sc = (struct mly_softc *)arg;
debug_called(2);
/* save base of s/g table's address in bus space */
sc->mly_sg_busaddr = segs->ds_addr;
}
/*******************************************************************************
* Take an interrupt, or be poked by other code to look for interrupt-worthy
* status.
*/
static void
amr_pci_intr(void *arg)
{
struct amr_softc *sc = (struct amr_softc *)arg;
debug_called(3);
/* collect finished commands, queue anything waiting */
amr_done(sc);
}
/********************************************************************************
* 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 camq on the controller is empty, as we won't
* allow shutdown if any device is open.
*/
static int
mly_pci_shutdown(device_t dev)
{
struct mly_softc *sc = device_get_softc(dev);
debug_called(1);
mly_detach(sc);
return(0);
}
/********************************************************************************
* Allocate and map the scatter/gather table in bus space.
*/
static void
amr_sglist_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
uint32_t *addr;
debug_called(1);
addr = arg;
*addr = segs[0].ds_addr;
}
/********************************************************************************
* Bring the controller back to a state ready for operation.
*/
static int
mly_pci_resume(device_t dev)
{
struct mly_softc *sc = device_get_softc(dev);
debug_called(1);
sc->mly_state &= ~MLY_STATE_SUSPEND;
MLY_UNMASK_INTERRUPTS(sc);
return(0);
}