static int
bt_pci_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
int opri;
int error;
/* Initialize softc */
error = bt_pci_alloc_resources(dev);
if (error) {
device_printf(dev, "can't allocate resources in bt_pci_attach\n");
return error;
}
/* Allocate a dmatag for our CCB DMA maps */
/* XXX Should be a child of the PCI bus dma tag */
if (bus_dma_tag_create( /* parent */ NULL,
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&bt->parent_dmat) != 0) {
bt_pci_release_resources(dev);
return (ENOMEM);
}
/*
* Protect ourself from spurrious interrupts during
* intialization and attach. We should really rely
* on interrupts during attach, but we don't have
* access to our interrupts during ISA probes, so until
* that changes, we mask our interrupts during attach
* too.
*/
opri = splcam();
if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
bt_pci_release_resources(dev);
splx(opri);
return (ENXIO);
}
error = bt_attach(dev);
splx(opri);
if (error) {
bt_pci_release_resources(dev);
return (error);
}
return (0);
}
static int
ncvattach(DEVPORT_PDEVICE devi)
{
struct ncv_softc *sc;
struct scsi_low_softc *slp;
u_int32_t flags = DEVPORT_PDEVFLAGS(devi);
intrmask_t s;
char dvname[16]; /* SCSI_LOW_DVNAME_LEN */
strcpy(dvname, "ncv");
sc = DEVPORT_PDEVALLOC_SOFTC(devi);
if (sc == NULL) {
return(0);
}
slp = &sc->sc_sclow;
slp->sl_dev = devi;
sc->sc_iot = rman_get_bustag(sc->port_res);
sc->sc_ioh = rman_get_bushandle(sc->port_res);
slp->sl_hostid = NCV_HOSTID;
slp->sl_cfgflags = flags;
s = splcam();
ncvattachsubr(sc);
splx(s);
return(NCVIOSZ);
}
static struct wds_req *
wdsr_alloc(struct wds *wp)
{
struct wds_req *r;
int x;
int i;
r = NULL;
x = splcam();
/* anyway most of the time only 1 or 2 commands will
* be active because SCSI disconnect is not supported
* by hardware, so the search should be fast enough
*/
i = ffs(wp->wdsr_free) - 1;
if(i < 0) {
splx(x);
return (NULL);
}
wp->wdsr_free &= ~ (1<<i);
r = &wp->dx->req[i];
r->flags = 0; /* reset all flags */
r->ombn = i; /* luckily we have one omb per wdsr */
wp->dx->ombs[i].stat = 1;
r->mask = 0;
splx(x);
smallog3('r', i + '0', r->ombn + '0');
return (r);
}
/*
* Function name: twa_detach
* Description: Called when the controller is being detached from
* the pci bus.
*
* Input: dev -- bus device corresponding to the ctlr
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_detach(device_t dev)
{
struct twa_softc *sc = device_get_softc(dev);
int s;
int error;
twa_dbg_dprint_enter(3, sc);
error = EBUSY;
s = splcam();
if (sc->twa_state & TWA_STATE_OPEN)
goto out;
/* Shut the controller down. */
if ((error = twa_shutdown(dev)))
goto out;
/* Free all resources associated with this controller. */
twa_free(sc);
error = 0;
out:
splx(s);
return(error);
}
int
stg_attach(device_t dev)
{
struct stg_softc *sc;
struct scsi_low_softc *slp;
u_int32_t flags = device_get_flags(dev);
intrmask_t s;
char dvname[16];
sc = device_get_softc(dev);
strcpy(dvname,"stg");
slp = &sc->sc_sclow;
slp->sl_dev = dev;
sc->sc_iot = rman_get_bustag(sc->port_res);
sc->sc_ioh = rman_get_bushandle(sc->port_res);
slp->sl_hostid = STG_HOSTID;
slp->sl_cfgflags = flags;
s = splcam();
stgattachsubr(sc);
splx(s);
return(STGIOSZ);
}
static __inline void
mly_requeue_ccb(struct mly_softc *sc, union ccb *ccb)
{
int s;
s = splcam();
TAILQ_INSERT_HEAD(&sc->mly_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
splx(s);
}
static __inline void
adv_free_ccb_info(struct adv_softc *adv, struct adv_ccb_info *cinfo)
{
int opri;
opri = splcam();
cinfo->state = ACCB_FREE;
SLIST_INSERT_HEAD(&adv->free_ccb_infos, cinfo, links);
splx(opri);
}
static __inline void
ahbecbfree(struct ahb_softc* ahb, struct ecb* ecb)
{
int s;
s = splcam();
ecb->state = ECB_FREE;
SLIST_INSERT_HEAD(&ahb->free_ecbs, ecb, links);
splx(s);
}
static void
nsp_card_unload(DEVPORT_PDEVICE devi)
{
struct nsp_softc *sc = DEVPORT_PDEVGET_SOFTC(devi);
intrmask_t s;
s = splcam();
scsi_low_deactivate((struct scsi_low_softc *)sc);
scsi_low_dettach(&sc->sc_sclow);
splx(s);
}
static void
nsp_card_unload(device_t devi)
{
struct nsp_softc *sc = device_get_softc(devi);
intrmask_t s;
s = splcam();
scsi_low_deactivate((struct scsi_low_softc *)sc);
scsi_low_dettach(&sc->sc_sclow);
splx(s);
}
/********************************************************************************
* Bring the controller to a quiescent state, ready for system suspend.
*
* We can't assume that the controller is not active at this point, so we need
* to mask interrupts.
*/
static int
mly_pci_suspend(device_t dev)
{
struct mly_softc *sc = device_get_softc(dev);
int s;
debug_called(1);
s = splcam();
mly_detach(sc);
splx(s);
return(0);
}
static void
ncv_card_unload(DEVPORT_PDEVICE devi)
{
struct ncv_softc *sc = DEVPORT_PDEVGET_SOFTC(devi);
intrmask_t s;
printf("%s: unload\n", sc->sc_sclow.sl_xname);
s = splcam();
scsi_low_deactivate((struct scsi_low_softc *)sc);
scsi_low_dettach(&sc->sc_sclow);
splx(s);
}
static __inline union ccb *
mly_dequeue_ccb(struct mly_softc *sc)
{
union ccb *ccb;
int s;
s = splcam();
if ((ccb = (union ccb *)TAILQ_FIRST(&sc->mly_cam_ccbq)) != NULL)
TAILQ_REMOVE(&sc->mly_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
splx(s);
return(ccb);
}
static void
stg_isa_unload(device_t devi)
{
struct stg_softc *sc = device_get_softc(devi);
intrmask_t s;
printf("%s: unload\n",sc->sc_sclow.sl_xname);
s = splcam();
scsi_low_deactivate((struct scsi_low_softc *)sc);
scsi_low_dettach(&sc->sc_sclow);
splx(s);
}
static __inline struct ecb*
ahbecbget(struct ahb_softc *ahb)
{
struct ecb* ecb;
int s;
s = splcam();
if ((ecb = SLIST_FIRST(&ahb->free_ecbs)) != NULL)
SLIST_REMOVE_HEAD(&ahb->free_ecbs, links);
splx(s);
return (ecb);
}
int
stg_detach (device_t dev)
{
struct stg_softc *sc = device_get_softc(dev);
intrmask_t s;
s = splcam();
scsi_low_deactivate((struct scsi_low_softc *)sc);
scsi_low_dettach(&sc->sc_sclow);
splx(s);
stg_release_resource(dev);
return (0);
}
static int
nspattach(device_t devi)
{
struct nsp_softc *sc;
struct scsi_low_softc *slp;
u_int32_t flags = device_get_flags(devi);
u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0);
intrmask_t s;
char dvname[16];
strcpy(dvname,"nsp");
if (iobase == 0) {
printf("%s: no ioaddr is given\n", dvname);
return (0);
}
sc = device_get_softc(devi);
if (sc == NULL)
return (0);
slp = &sc->sc_sclow;
slp->sl_dev = devi;
sc->sc_iot = rman_get_bustag(sc->port_res);
sc->sc_ioh = rman_get_bushandle(sc->port_res);
if (sc->mem_res == NULL) {
printf("WARNING: CANNOT GET Memory RESOURCE going PIO mode");
flags |= PIO_MODE;
}
if ((flags & PIO_MODE) == 0) {
sc->sc_memt = rman_get_bustag(sc->mem_res);
sc->sc_memh = rman_get_bushandle(sc->mem_res);
} else {
sc->sc_memh = 0;
}
/* slp->sl_irq = devi->pd_irq; */
sc->sc_iclkdiv = CLKDIVR_20M;
sc->sc_clkdiv = CLKDIVR_40M;
slp->sl_hostid = NSP_HOSTID;
slp->sl_cfgflags = flags;
s = splcam();
nspattachsubr(sc);
splx(s);
return(NSP_IOSIZE);
}
static __inline struct adv_ccb_info *
adv_get_ccb_info(struct adv_softc *adv)
{
struct adv_ccb_info *cinfo;
int opri;
opri = splcam();
if ((cinfo = SLIST_FIRST(&adv->free_ccb_infos)) != NULL) {
SLIST_REMOVE_HEAD(&adv->free_ccb_infos, links);
} else {
cinfo = adv_alloc_ccb_info(adv);
}
splx(opri);
return (cinfo);
}
/*
* Function name: twa_suspend
* Description: Called to suspend I/O before hot-swapping PCI ctlrs.
* Doesn't do much as of now.
*
* Input: dev -- bus device corresponding to the ctlr
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_suspend(device_t dev)
{
struct twa_softc *sc = device_get_softc(dev);
int s;
twa_dbg_dprint_enter(3, sc);
s = splcam();
sc->twa_state |= TWA_STATE_SUSPEND;
twa_disable_interrupts(sc);
splx(s);
return(1);
}
/*
* Function name: twa_reset_stats
* Description: For being called from ddb.
* Resets some controller stats.
*
* Input: None
* Output: None
* Return value: None
*/
void
twa_reset_stats(void)
{
struct twa_softc *sc;
int s;
int i;
s = splcam();
for (i = 0; (sc = devclass_get_softc(twa_devclass, i)) != NULL; i++) {
sc->twa_qstats[TWAQ_FREE].q_max = 0;
sc->twa_qstats[TWAQ_BUSY].q_max = 0;
sc->twa_qstats[TWAQ_PENDING].q_max = 0;
sc->twa_qstats[TWAQ_COMPLETE].q_max = 0;
}
splx(s);
}
/*
* Function name: twa_shutdown
* Description: Called at unload/shutdown time. Lets the controller
* know that we are going down.
*
* Input: dev -- bus device corresponding to the ctlr
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_shutdown(device_t dev)
{
struct twa_softc *sc = device_get_softc(dev);
int s;
int error = 0;
twa_dbg_dprint_enter(3, sc);
s = splcam();
/* Disconnect from the controller. */
error = twa_deinit_ctlr(sc);
splx(s);
return(error);
}
/*
* Function name: twa_report
* Description: For being called from ddb. Prints controller stats,
* and requests, if any, that are in the wrong queue.
*
* Input: None
* Output: None
* Return value: None
*/
void
twa_report(void)
{
struct twa_softc *sc;
struct twa_request *tr;
int s;
int i;
s = splcam();
for (i = 0; (sc = devclass_get_softc(twa_devclass, i)) != NULL; i++) {
twa_print_controller(sc);
TAILQ_FOREACH(tr, &sc->twa_busy, tr_link)
twa_print_request(tr, TWA_CMD_BUSY);
TAILQ_FOREACH(tr, &sc->twa_complete, tr_link)
twa_print_request(tr, TWA_CMD_COMPLETE);
}
splx(s);
}
static int
wds_cmd(int base, u_int8_t * p, int l)
{
int s = splcam();
while (l--) {
do {
outb(base + WDS_CMD, *p);
wds_wait(base + WDS_STAT, WDS_RDY, WDS_RDY);
} while (inb(base + WDS_STAT) & WDS_REJ);
p++;
}
wds_wait(base + WDS_STAT, WDS_RDY, WDS_RDY);
splx(s);
return (0);
}
static int
stgattach(device_t devi)
{
struct stg_softc *sc;
struct scsi_low_softc *slp;
u_int32_t flags = device_get_flags(devi);
u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0);
intrmask_t s;
char dvname[16];
strcpy(dvname,"stg");
if (iobase == 0)
{
printf("%s: no ioaddr is given\n", dvname);
return (0);
}
sc = device_get_softc(devi);
if (sc == NULL) {
return(0);
}
slp = &sc->sc_sclow;
slp->sl_dev = devi;
sc->sc_iot = rman_get_bustag(sc->port_res);
sc->sc_ioh = rman_get_bushandle(sc->port_res);
slp->sl_hostid = STG_HOSTID;
slp->sl_cfgflags = flags;
s = splcam();
stgattachsubr(sc);
splx(s);
return(STGIOSZ);
}
static void
isp_cam_async(void *cbarg, u_int32_t code, struct cam_path *path, void *arg)
{
struct cam_sim *sim;
struct ispsoftc *isp;
sim = (struct cam_sim *)cbarg;
isp = (struct ispsoftc *) cam_sim_softc(sim);
switch (code) {
case AC_LOST_DEVICE:
if (isp->isp_type & ISP_HA_SCSI) {
u_int16_t oflags, nflags;
sdparam *sdp = isp->isp_param;
int s, tgt = xpt_path_target_id(path);
s = splcam();
sdp += cam_sim_bus(sim);
isp->isp_update |= (1 << cam_sim_bus(sim));
nflags = DPARM_SAFE_DFLT;
if (ISP_FW_REVX(isp->isp_fwrev) >=
ISP_FW_REV(7, 55, 0)) {
nflags |= DPARM_NARROW | DPARM_ASYNC;
}
oflags = sdp->isp_devparam[tgt].dev_flags;
sdp->isp_devparam[tgt].dev_flags = nflags;
sdp->isp_devparam[tgt].dev_update = 1;
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, NULL);
sdp->isp_devparam[tgt].dev_flags = oflags;
(void) splx(s);
}
break;
default:
break;
}
}
static void
adv_action(struct cam_sim *sim, union ccb *ccb)
{
struct adv_softc *adv;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("adv_action\n"));
adv = (struct adv_softc *)cam_sim_softc(sim);
switch (ccb->ccb_h.func_code) {
/* Common cases first */
case XPT_SCSI_IO: /* Execute the requested I/O operation */
{
struct ccb_hdr *ccb_h;
struct ccb_scsiio *csio;
struct adv_ccb_info *cinfo;
ccb_h = &ccb->ccb_h;
csio = &ccb->csio;
cinfo = adv_get_ccb_info(adv);
if (cinfo == NULL)
panic("XXX Handle CCB info error!!!");
ccb_h->ccb_cinfo_ptr = cinfo;
cinfo->ccb = ccb;
/* Only use S/G if there is a transfer */
if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
/*
* We've been given a pointer
* to a single buffer
*/
if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
int s;
int error;
s = splsoftvm();
error =
bus_dmamap_load(adv->buffer_dmat,
cinfo->dmamap,
csio->data_ptr,
csio->dxfer_len,
adv_execute_ccb,
csio, /*flags*/0);
if (error == EINPROGRESS) {
/*
* So as to maintain ordering,
* freeze the controller queue
* until our mapping is
* returned.
*/
adv_set_state(adv,
ADV_BUSDMA_BLOCK);
}
splx(s);
} else {
struct bus_dma_segment seg;
/* Pointer to physical buffer */
seg.ds_addr =
(bus_addr_t)csio->data_ptr;
seg.ds_len = csio->dxfer_len;
adv_execute_ccb(csio, &seg, 1, 0);
}
} else {
struct bus_dma_segment *segs;
if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
panic("adv_setup_data - Physical "
"segment pointers unsupported");
if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
panic("adv_setup_data - Virtual "
"segment addresses unsupported");
/* Just use the segments provided */
segs = (struct bus_dma_segment *)csio->data_ptr;
adv_execute_ccb(ccb, segs, csio->sglist_cnt, 0);
}
} else {
adv_execute_ccb(ccb, NULL, 0, 0);
}
break;
}
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
case XPT_TARGET_IO: /* Execute target I/O request */
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
case XPT_EN_LUN: /* Enable LUN as a target */
case XPT_ABORT: /* Abort the specified CCB */
/* XXX Implement */
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
#define IS_CURRENT_SETTINGS(c) (c->type == CTS_TYPE_CURRENT_SETTINGS)
#define IS_USER_SETTINGS(c) (c->type == CTS_TYPE_USER_SETTINGS)
case XPT_SET_TRAN_SETTINGS:
{
struct ccb_trans_settings_scsi *scsi;
struct ccb_trans_settings_spi *spi;
struct ccb_trans_settings *cts;
target_bit_vector targ_mask;
struct adv_transinfo *tconf;
u_int update_type;
int s;
cts = &ccb->cts;
targ_mask = ADV_TID_TO_TARGET_MASK(cts->ccb_h.target_id);
update_type = 0;
/*
* The user must specify which type of settings he wishes
* to change.
*/
if (IS_CURRENT_SETTINGS(cts) && !IS_USER_SETTINGS(cts)) {
tconf = &adv->tinfo[cts->ccb_h.target_id].current;
update_type |= ADV_TRANS_GOAL;
} else if (IS_USER_SETTINGS(cts) && !IS_CURRENT_SETTINGS(cts)) {
tconf = &adv->tinfo[cts->ccb_h.target_id].user;
update_type |= ADV_TRANS_USER;
} else {
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
s = splcam();
scsi = &cts->proto_specific.scsi;
spi = &cts->xport_specific.spi;
if ((update_type & ADV_TRANS_GOAL) != 0) {
if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
adv->disc_enable |= targ_mask;
else
adv->disc_enable &= ~targ_mask;
adv_write_lram_8(adv, ADVV_DISC_ENABLE_B,
adv->disc_enable);
}
if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
adv->cmd_qng_enabled |= targ_mask;
else
adv->cmd_qng_enabled &= ~targ_mask;
}
}
if ((update_type & ADV_TRANS_USER) != 0) {
if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
if ((spi->flags & CTS_SPI_VALID_DISC) != 0)
adv->user_disc_enable |= targ_mask;
else
adv->user_disc_enable &= ~targ_mask;
}
if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
adv->user_cmd_qng_enabled |= targ_mask;
else
adv->user_cmd_qng_enabled &= ~targ_mask;
}
}
/*
* If the user specifies either the sync rate, or offset,
* but not both, the unspecified parameter defaults to its
* current value in transfer negotiations.
*/
if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
|| ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
/*
* If the user provided a sync rate but no offset,
* use the current offset.
*/
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0)
spi->sync_offset = tconf->offset;
/*
* If the user provided an offset but no sync rate,
* use the current sync rate.
*/
if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0)
spi->sync_period = tconf->period;
adv_period_offset_to_sdtr(adv, &spi->sync_period,
&spi->sync_offset,
cts->ccb_h.target_id);
adv_set_syncrate(adv, /*struct cam_path */NULL,
cts->ccb_h.target_id, spi->sync_period,
spi->sync_offset, update_type);
}
splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_GET_TRAN_SETTINGS:
/* Get default/user set transfer settings for the target */
{
struct ccb_trans_settings_scsi *scsi;
struct ccb_trans_settings_spi *spi;
struct ccb_trans_settings *cts;
struct adv_transinfo *tconf;
target_bit_vector target_mask;
int s;
cts = &ccb->cts;
target_mask = ADV_TID_TO_TARGET_MASK(cts->ccb_h.target_id);
scsi = &cts->proto_specific.scsi;
spi = &cts->xport_specific.spi;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
s = splcam();
if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
tconf = &adv->tinfo[cts->ccb_h.target_id].current;
if ((adv->disc_enable & target_mask) != 0)
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
if ((adv->cmd_qng_enabled & target_mask) != 0)
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
} else {
tconf = &adv->tinfo[cts->ccb_h.target_id].user;
if ((adv->user_disc_enable & target_mask) != 0)
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
if ((adv->user_cmd_qng_enabled & target_mask) != 0)
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
}
spi->sync_period = tconf->period;
spi->sync_offset = tconf->offset;
splx(s);
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
spi->valid = CTS_SPI_VALID_SYNC_RATE
| CTS_SPI_VALID_SYNC_OFFSET
| CTS_SPI_VALID_BUS_WIDTH
| CTS_SPI_VALID_DISC;
scsi->valid = CTS_SCSI_VALID_TQ;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_CALC_GEOMETRY:
{
int extended;
extended = (adv->control & ADV_CNTL_BIOS_GT_1GB) != 0;
cam_calc_geometry(&ccb->ccg, extended);
xpt_done(ccb);
break;
}
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
{
int s;
s = splcam();
adv_stop_execution(adv);
adv_reset_bus(adv, /*initiate_reset*/TRUE);
adv_start_execution(adv);
splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_TERM_IO: /* Terminate the I/O process */
/* XXX Implement */
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
cpi->target_sprt = 0;
cpi->hba_misc = 0;
cpi->hba_eng_cnt = 0;
cpi->max_target = 7;
cpi->max_lun = 7;
cpi->initiator_id = adv->scsi_id;
cpi->bus_id = cam_sim_bus(sim);
cpi->base_transfer_speed = 3300;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "Advansys", 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;
cpi->transport = XPORT_SPI;
cpi->transport_version = 2;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
static void
isp_action(struct cam_sim *sim, union ccb *ccb)
{
int s, tgt, error;
struct ispsoftc *isp;
struct ccb_trans_settings *cts;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
isp = (struct ispsoftc *)cam_sim_softc(sim);
ccb->ccb_h.sim_priv.entries[0].field = 0;
ccb->ccb_h.sim_priv.entries[1].ptr = isp;
/*
* This should only happen for Fibre Channel adapters.
* We want to pass through all but XPT_SCSI_IO (e.g.,
* path inquiry) but fail if we can't get good Fibre
* Channel link status.
*/
if (ccb->ccb_h.func_code == XPT_SCSI_IO &&
isp->isp_state != ISP_RUNSTATE) {
s = splcam();
DISABLE_INTS(isp);
isp_init(isp);
if (isp->isp_state != ISP_INITSTATE) {
(void) splx(s);
/*
* Lie. Say it was a selection timeout.
*/
ccb->ccb_h.status = CAM_SEL_TIMEOUT;
xpt_done(ccb);
return;
}
isp->isp_state = ISP_RUNSTATE;
ENABLE_INTS(isp);
(void) splx(s);
}
IDPRINTF(4, ("%s: isp_action code %x\n", isp->isp_name,
ccb->ccb_h.func_code));
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO: /* Execute the requested I/O operation */
/*
* Do a couple of preliminary checks...
*/
if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
if (isp->isp_type & ISP_HA_SCSI) {
if (ccb->ccb_h.target_id > (MAX_TARGETS-1)) {
ccb->ccb_h.status = CAM_PATH_INVALID;
} else if (ISP_FW_REVX(isp->isp_fwrev) >=
ISP_FW_REV(7, 55, 0)) {
/*
* Too much breakage.
*/
#if 0
if (ccb->ccb_h.target_lun > 31) {
ccb->ccb_h.status = CAM_PATH_INVALID;
}
#else
if (ccb->ccb_h.target_lun > 7) {
ccb->ccb_h.status = CAM_PATH_INVALID;
}
#endif
} else if (ccb->ccb_h.target_lun > 7) {
ccb->ccb_h.status = CAM_PATH_INVALID;
}
} else {
if (ccb->ccb_h.target_id > (MAX_FC_TARG-1)) {
ccb->ccb_h.status = CAM_PATH_INVALID;
#ifdef SCCLUN
} else if (ccb->ccb_h.target_lun > 15) {
ccb->ccb_h.status = CAM_PATH_INVALID;
#else
} else if (ccb->ccb_h.target_lun > 65535) {
ccb->ccb_h.status = CAM_PATH_INVALID;
#endif
}
}
if (ccb->ccb_h.status == CAM_PATH_INVALID) {
printf("%s: invalid tgt/lun (%d.%d) in XPT_SCSI_IO\n",
isp->isp_name, ccb->ccb_h.target_id,
ccb->ccb_h.target_lun);
xpt_done(ccb);
break;
}
s = splcam();
DISABLE_INTS(isp);
switch (ispscsicmd((ISP_SCSI_XFER_T *) ccb)) {
case CMD_QUEUED:
ccb->ccb_h.status |= CAM_SIM_QUEUED;
break;
case CMD_EAGAIN:
if (!(isp->isp_osinfo.simqfrozen & SIMQFRZ_RESOURCE)) {
xpt_freeze_simq(sim, 1);
isp->isp_osinfo.simqfrozen |= SIMQFRZ_RESOURCE;
}
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
xpt_done(ccb);
break;
case CMD_COMPLETE:
/*
* Just make sure that we didn't get it returned
* as completed, but with the request still in
* progress. In theory, 'cannot happen'.
*/
if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
CAM_REQ_INPROG) {
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
}
xpt_done(ccb);
break;
}
ENABLE_INTS(isp);
splx(s);
break;
case XPT_EN_LUN: /* Enable LUN as a target */
case XPT_TARGET_IO: /* Execute target I/O request */
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
case XPT_RESET_DEV: /* BDR the specified SCSI device */
tgt = ccb->ccb_h.target_id; /* XXX: Which Bus? */
s = splcam();
error = isp_control(isp, ISPCTL_RESET_DEV, &tgt);
(void) splx(s);
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
} else {
ccb->ccb_h.status = CAM_REQ_CMP;
}
xpt_done(ccb);
break;
case XPT_ABORT: /* Abort the specified CCB */
s = splcam();
error = isp_control(isp, ISPCTL_ABORT_CMD, ccb);
(void) splx(s);
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
} else {
ccb->ccb_h.status = CAM_REQ_CMP;
}
xpt_done(ccb);
break;
case XPT_SET_TRAN_SETTINGS: /* Nexus Settings */
cts = &ccb->cts;
tgt = cts->ccb_h.target_id;
s = splcam();
if (isp->isp_type & ISP_HA_FC) {
; /* nothing to change */
} else {
sdparam *sdp = isp->isp_param;
u_int16_t *dptr;
int bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
sdp += bus;
#if 0
if (cts->flags & CCB_TRANS_CURRENT_SETTINGS)
dptr = &sdp->isp_devparam[tgt].cur_dflags;
else
dptr = &sdp->isp_devparam[tgt].dev_flags;
#else
/*
* We always update (internally) from dev_flags
* so any request to change settings just gets
* vectored to that location.
*/
dptr = &sdp->isp_devparam[tgt].dev_flags;
#endif
/*
* Note that these operations affect the
* the goal flags (dev_flags)- not
* the current state flags. Then we mark
* things so that the next operation to
* this HBA will cause the update to occur.
*/
if (cts->valid & CCB_TRANS_DISC_VALID) {
if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) {
*dptr |= DPARM_DISC;
} else {
*dptr &= ~DPARM_DISC;
}
}
if (cts->valid & CCB_TRANS_TQ_VALID) {
if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) {
*dptr |= DPARM_TQING;
} else {
*dptr &= ~DPARM_TQING;
}
}
if (cts->valid & CCB_TRANS_BUS_WIDTH_VALID) {
switch (cts->bus_width) {
case MSG_EXT_WDTR_BUS_16_BIT:
*dptr |= DPARM_WIDE;
break;
default:
*dptr &= ~DPARM_WIDE;
}
}
/*
* Any SYNC RATE of nonzero and SYNC_OFFSET
* of nonzero will cause us to go to the
* selected (from NVRAM) maximum value for
* this device. At a later point, we'll
* allow finer control.
*/
if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
(cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) &&
(cts->sync_offset > 0)) {
*dptr |= DPARM_SYNC;
} else {
*dptr &= ~DPARM_SYNC;
}
if (bootverbose || isp->isp_dblev >= 3)
printf("%s: %d.%d set %s period 0x%x offset "
"0x%x flags 0x%x\n", isp->isp_name, bus,
tgt,
(cts->flags & CCB_TRANS_CURRENT_SETTINGS)?
"current" : "user",
sdp->isp_devparam[tgt].sync_period,
sdp->isp_devparam[tgt].sync_offset,
sdp->isp_devparam[tgt].dev_flags);
s = splcam();
sdp->isp_devparam[tgt].dev_update = 1;
isp->isp_update |= (1 << bus);
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, NULL);
(void) splx(s);
}
(void) splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_GET_TRAN_SETTINGS:
cts = &ccb->cts;
tgt = cts->ccb_h.target_id;
if (isp->isp_type & ISP_HA_FC) {
/*
* a lot of normal SCSI things don't make sense.
*/
cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
/*
* How do you measure the width of a high
* speed serial bus? Well, in bytes.
*
* Offset and period make no sense, though, so we set
* (above) a 'base' transfer speed to be gigabit.
*/
cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
} else {
sdparam *sdp = isp->isp_param;
u_int16_t dval, pval, oval;
int bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
sdp += bus;
if (cts->flags & CCB_TRANS_CURRENT_SETTINGS) {
s = splcam();
/*
* First do a refresh to see if things
* have changed recently!
*/
sdp->isp_devparam[tgt].dev_refresh = 1;
isp->isp_update |= (1 << bus);
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS,
NULL);
(void) splx(s);
dval = sdp->isp_devparam[tgt].cur_dflags;
oval = sdp->isp_devparam[tgt].cur_offset;
pval = sdp->isp_devparam[tgt].cur_period;
} else {
dval = sdp->isp_devparam[tgt].dev_flags;
oval = sdp->isp_devparam[tgt].sync_offset;
pval = sdp->isp_devparam[tgt].sync_period;
}
s = splcam();
cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
if (dval & DPARM_DISC) {
cts->flags |= CCB_TRANS_DISC_ENB;
}
if (dval & DPARM_TQING) {
cts->flags |= CCB_TRANS_TAG_ENB;
}
if (dval & DPARM_WIDE) {
cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
} else {
cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
}
cts->valid = CCB_TRANS_BUS_WIDTH_VALID |
CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
if ((dval & DPARM_SYNC) && oval != 0) {
cts->sync_period = pval;
cts->sync_offset = oval;
cts->valid |=
CCB_TRANS_SYNC_RATE_VALID |
CCB_TRANS_SYNC_OFFSET_VALID;
}
splx(s);
if (bootverbose || isp->isp_dblev >= 3)
printf("%s: %d.%d get %s period 0x%x offset "
"0x%x flags 0x%x\n", isp->isp_name, bus,
tgt,
(cts->flags & CCB_TRANS_CURRENT_SETTINGS)?
"current" : "user", pval, oval, dval);
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_CALC_GEOMETRY:
{
struct ccb_calc_geometry *ccg;
u_int32_t secs_per_cylinder;
u_int32_t size_mb;
ccg = &ccb->ccg;
if (ccg->block_size == 0) {
printf("%s: %d.%d XPT_CALC_GEOMETRY block size 0?\n",
isp->isp_name, ccg->ccb_h.target_id,
ccg->ccb_h.target_lun);
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
size_mb = ccg->volume_size /((1024L * 1024L) / ccg->block_size);
if (size_mb > 1024) {
ccg->heads = 255;
ccg->secs_per_track = 63;
} else {
ccg->heads = 64;
ccg->secs_per_track = 32;
}
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_RESET_BUS: /* Reset the specified bus */
tgt = cam_sim_bus(sim);
s = splcam();
error = isp_control(isp, ISPCTL_RESET_BUS, &tgt);
(void) splx(s);
if (error)
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
else {
if (cam_sim_bus(sim) && isp->isp_path2 != NULL)
xpt_async(AC_BUS_RESET, isp->isp_path2, NULL);
else if (isp->isp_path != NULL)
xpt_async(AC_BUS_RESET, isp->isp_path, NULL);
ccb->ccb_h.status = CAM_REQ_CMP;
}
xpt_done(ccb);
break;
case XPT_TERM_IO: /* Terminate the I/O process */
/* Does this need to be implemented? */
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1;
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
cpi->target_sprt = 0;
cpi->hba_eng_cnt = 0;
if (IS_FC(isp)) {
cpi->hba_misc = PIM_NOBUSRESET;
cpi->max_target = MAX_FC_TARG-1;
cpi->initiator_id =
((fcparam *)isp->isp_param)->isp_loopid;
#ifdef SCCLUN
cpi->max_lun = (1 << 16) - 1;
#else
cpi->max_lun = (1 << 4) - 1;
#endif
/*
* Set base transfer capabilities for Fibre Channel.
* Technically not correct because we don't know
* what media we're running on top of- but we'll
* look good if we always say 100MB/s.
*/
cpi->base_transfer_speed = 100000;
} else {
sdparam *sdp = isp->isp_param;
sdp += cam_sim_bus(xpt_path_sim(cpi->ccb_h.path));
cpi->hba_misc = 0;
cpi->initiator_id = sdp->isp_initiator_id;
cpi->max_target = MAX_TARGETS-1;
if (ISP_FW_REVX(isp->isp_fwrev) >=
ISP_FW_REV(7, 55, 0)) {
#if 0
/*
* Too much breakage.
*/
cpi->max_lun = (1 << 5) - 1;
#else
cpi->max_lun = (1 << 3) - 1;
#endif
} else {
cpi->max_lun = (1 << 3) - 1;
}
cpi->base_transfer_speed = 3300;
}
cpi->bus_id = cam_sim_bus(sim);
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "Qlogic", 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;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
static void
wds_action(struct cam_sim * sim, union ccb * ccb)
{
int unit = cam_sim_unit(sim);
int s;
DBG(DBX "wds%d: action 0x%x\n", unit, ccb->ccb_h.func_code);
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO:
s = splcam();
DBG(DBX "wds%d: SCSI IO entered\n", unit);
wds_scsi_io(sim, &ccb->csio);
DBG(DBX "wds%d: SCSI IO returned\n", unit);
splx(s);
break;
case XPT_RESET_BUS:
/* how to do it right ? */
printf("wds%d: reset\n", unit);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_ABORT:
ccb->ccb_h.status = CAM_UA_ABORT;
xpt_done(ccb);
break;
case XPT_CALC_GEOMETRY:
{
struct ccb_calc_geometry *ccg;
u_int32_t size_mb;
u_int32_t secs_per_cylinder;
ccg = &ccb->ccg;
size_mb = ccg->volume_size
/ ((1024L * 1024L) / ccg->block_size);
ccg->heads = 64;
ccg->secs_per_track = 16;
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = 0; /* nothing fancy */
cpi->target_sprt = 0;
cpi->hba_misc = 0;
cpi->hba_eng_cnt = 0;
cpi->max_target = 7;
cpi->max_lun = 7;
cpi->initiator_id = WDS_HBA_ID;
cpi->hba_misc = 0;
cpi->bus_id = cam_sim_bus(sim);
cpi->base_transfer_speed = 3300;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "WD/FDC", 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;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
void
adv_timeout(void *arg)
{
int s;
union ccb *ccb;
struct adv_softc *adv;
struct adv_ccb_info *cinfo;
ccb = (union ccb *)arg;
adv = (struct adv_softc *)xpt_path_sim(ccb->ccb_h.path)->softc;
cinfo = (struct adv_ccb_info *)ccb->ccb_h.ccb_cinfo_ptr;
xpt_print_path(ccb->ccb_h.path);
printf("Timed out\n");
s = splcam();
/* Have we been taken care of already?? */
if (cinfo == NULL || cinfo->state == ACCB_FREE) {
splx(s);
return;
}
adv_stop_execution(adv);
if ((cinfo->state & ACCB_ABORT_QUEUED) == 0) {
struct ccb_hdr *ccb_h;
/*
* In order to simplify the recovery process, we ask the XPT
* layer to halt the queue of new transactions and we traverse
* the list of pending CCBs and remove their timeouts. This
* means that the driver attempts to clear only one error
* condition at a time. In general, timeouts that occur
* close together are related anyway, so there is no benefit
* in attempting to handle errors in parrallel. Timeouts will
* be reinstated when the recovery process ends.
*/
adv_set_state(adv, ADV_IN_TIMEOUT);
/* This CCB is the CCB representing our recovery actions */
cinfo->state |= ACCB_RECOVERY_CCB|ACCB_ABORT_QUEUED;
ccb_h = LIST_FIRST(&adv->pending_ccbs);
while (ccb_h != NULL) {
untimeout(adv_timeout, ccb_h, ccb_h->timeout_ch);
ccb_h = LIST_NEXT(ccb_h, sim_links.le);
}
/* XXX Should send a BDR */
/* Attempt an abort as our first tact */
xpt_print_path(ccb->ccb_h.path);
printf("Attempting abort\n");
adv_abort_ccb(adv, ccb->ccb_h.target_id,
ccb->ccb_h.target_lun, ccb,
CAM_CMD_TIMEOUT, /*queued_only*/FALSE);
ccb->ccb_h.timeout_ch =
timeout(adv_timeout, ccb, 2 * hz);
} else {
/* Our attempt to perform an abort failed, go for a reset */
xpt_print_path(ccb->ccb_h.path);
printf("Resetting bus\n");
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_CMD_TIMEOUT;
adv_reset_bus(adv, /*initiate_reset*/TRUE);
}
adv_start_execution(adv);
splx(s);
}
static void
adv_execute_ccb(void *arg, bus_dma_segment_t *dm_segs,
int nsegments, int error)
{
struct ccb_scsiio *csio;
struct ccb_hdr *ccb_h;
struct cam_sim *sim;
struct adv_softc *adv;
struct adv_ccb_info *cinfo;
struct adv_scsi_q scsiq;
struct adv_sg_head sghead;
int s;
csio = (struct ccb_scsiio *)arg;
ccb_h = &csio->ccb_h;
sim = xpt_path_sim(ccb_h->path);
adv = (struct adv_softc *)cam_sim_softc(sim);
cinfo = (struct adv_ccb_info *)csio->ccb_h.ccb_cinfo_ptr;
/*
* Setup our done routine to release the simq on
* the next ccb that completes.
*/
if ((adv->state & ADV_BUSDMA_BLOCK) != 0)
adv->state |= ADV_BUSDMA_BLOCK_CLEARED;
if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
if ((ccb_h->flags & CAM_CDB_PHYS) == 0) {
/* XXX Need phystovirt!!!! */
/* How about pmap_kenter??? */
scsiq.cdbptr = csio->cdb_io.cdb_ptr;
} else {
scsiq.cdbptr = csio->cdb_io.cdb_ptr;
}
} else {
scsiq.cdbptr = csio->cdb_io.cdb_bytes;
}
/*
* Build up the request
*/
scsiq.q1.status = 0;
scsiq.q1.q_no = 0;
scsiq.q1.cntl = 0;
scsiq.q1.sg_queue_cnt = 0;
scsiq.q1.target_id = ADV_TID_TO_TARGET_MASK(ccb_h->target_id);
scsiq.q1.target_lun = ccb_h->target_lun;
scsiq.q1.sense_len = csio->sense_len;
scsiq.q1.extra_bytes = 0;
scsiq.q2.ccb_index = cinfo - adv->ccb_infos;
scsiq.q2.target_ix = ADV_TIDLUN_TO_IX(ccb_h->target_id,
ccb_h->target_lun);
scsiq.q2.flag = 0;
scsiq.q2.cdb_len = csio->cdb_len;
if ((ccb_h->flags & CAM_TAG_ACTION_VALID) != 0)
scsiq.q2.tag_code = csio->tag_action;
else
scsiq.q2.tag_code = 0;
scsiq.q2.vm_id = 0;
if (nsegments != 0) {
bus_dmasync_op_t op;
scsiq.q1.data_addr = dm_segs->ds_addr;
scsiq.q1.data_cnt = dm_segs->ds_len;
if (nsegments > 1) {
scsiq.q1.cntl |= QC_SG_HEAD;
sghead.entry_cnt
= sghead.entry_to_copy
= nsegments;
sghead.res = 0;
sghead.sg_list = adv_fixup_dmasegs(adv, dm_segs);
scsiq.sg_head = &sghead;
} else {
scsiq.sg_head = NULL;
}
if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_IN)
op = BUS_DMASYNC_PREREAD;
else
op = BUS_DMASYNC_PREWRITE;
bus_dmamap_sync(adv->buffer_dmat, cinfo->dmamap, op);
} else {
scsiq.q1.data_addr = 0;
scsiq.q1.data_cnt = 0;
scsiq.sg_head = NULL;
}
s = splcam();
/*
* Last time we need to check if this SCB needs to
* be aborted.
*/
if (ccb_h->status != CAM_REQ_INPROG) {
if (nsegments != 0)
bus_dmamap_unload(adv->buffer_dmat, cinfo->dmamap);
adv_clear_state(adv, (union ccb *)csio);
adv_free_ccb_info(adv, cinfo);
xpt_done((union ccb *)csio);
splx(s);
return;
}
if (adv_execute_scsi_queue(adv, &scsiq, csio->dxfer_len) != 0) {
/* Temporary resource shortage */
adv_set_state(adv, ADV_RESOURCE_SHORTAGE);
if (nsegments != 0)
bus_dmamap_unload(adv->buffer_dmat, cinfo->dmamap);
csio->ccb_h.status = CAM_REQUEUE_REQ;
adv_clear_state(adv, (union ccb *)csio);
adv_free_ccb_info(adv, cinfo);
xpt_done((union ccb *)csio);
splx(s);
return;
}
cinfo->state |= ACCB_ACTIVE;
ccb_h->status |= CAM_SIM_QUEUED;
LIST_INSERT_HEAD(&adv->pending_ccbs, ccb_h, sim_links.le);
/* Schedule our timeout */
ccb_h->timeout_ch =
timeout(adv_timeout, csio, (ccb_h->timeout * hz)/1000);
splx(s);
}
