static void
wds_intr(struct wds *wp)
{
struct wds_req *rp;
struct wds_mb *in;
u_int8_t stat;
u_int8_t c;
int addr = wp->addr;
DBG(DBX "wds%d: interrupt [\n", wp->unit);
smallog('[');
if (inb(addr + WDS_STAT) & WDS_IRQ) {
c = inb(addr + WDS_IRQSTAT);
if ((c & WDSI_MASK) == WDSI_MSVC) {
c = c & ~WDSI_MASK;
in = &wp->dx->imbs[c];
rp = cmdtovirt(wp, scsi_3btoul(in->addr));
stat = in->stat;
if (rp != NULL)
wds_done(wp, rp, stat);
else
device_printf(wp->dev,
"got weird command address %p"
"from controller\n", rp);
in->stat = 0;
} else
device_printf(wp->dev,
"weird interrupt, irqstat=0x%x\n", c);
outb(addr + WDS_IRQACK, 0);
} else {
smallog('?');
}
smallog(']');
DBG(DBX "wds%d: ]\n", wp->unit);
}
/*
* Convert the SCSI command in ccb to an ata_xfer command in xa
* for ATA_PORT_T_DISK operations. Set the completion function
* to convert the response back, then dispatch to the OpenBSD AHCI
* layer.
*
* AHCI DISK commands only support a limited command set, and we
* fake additional commands to make it play nice with the CAM subsystem.
*/
static
void
ahci_xpt_scsi_disk_io(struct ahci_port *ap, struct ata_port *atx,
union ccb *ccb)
{
struct ccb_hdr *ccbh;
struct ccb_scsiio *csio;
struct ata_xfer *xa;
struct ata_port *at;
struct ata_fis_h2d *fis;
struct ata_pass_12 *atp12;
struct ata_pass_16 *atp16;
scsi_cdb_t cdb;
union scsi_data *rdata;
int rdata_len;
u_int64_t capacity;
u_int64_t lba;
u_int32_t count;
ccbh = &ccb->csio.ccb_h;
csio = &ccb->csio;
at = atx ? atx : ap->ap_ata[0];
/*
* XXX not passing NULL at for direct attach!
*/
xa = ahci_ata_get_xfer(ap, atx);
rdata = (void *)csio->data_ptr;
rdata_len = csio->dxfer_len;
/*
* Build the FIS or process the csio to completion.
*/
cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ?
csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
switch(cdb->generic.opcode) {
case REQUEST_SENSE:
/*
* Auto-sense everything, so explicit sense requests
* return no-sense.
*/
ccbh->status = CAM_SCSI_STATUS_ERROR;
break;
case INQUIRY:
/*
* Inquiry supported features
*
* [opcode, byte2, page_code, length, control]
*/
if (cdb->inquiry.byte2 & SI_EVPD) {
ahci_xpt_page_inquiry(ap, at, ccb);
} else {
bzero(rdata, rdata_len);
if (rdata_len < SHORT_INQUIRY_LENGTH) {
ccbh->status = CAM_CCB_LEN_ERR;
break;
}
if (rdata_len > sizeof(rdata->inquiry_data))
rdata_len = sizeof(rdata->inquiry_data);
rdata->inquiry_data.device = T_DIRECT;
rdata->inquiry_data.version = SCSI_REV_SPC2;
rdata->inquiry_data.response_format = 2;
rdata->inquiry_data.additional_length = 32;
bcopy("SATA ", rdata->inquiry_data.vendor, 8);
bcopy(at->at_identify.model,
rdata->inquiry_data.product,
sizeof(rdata->inquiry_data.product));
bcopy(at->at_identify.firmware,
rdata->inquiry_data.revision,
sizeof(rdata->inquiry_data.revision));
ccbh->status = CAM_REQ_CMP;
}
/*
* Use the vendor specific area to set the TRIM status
* for scsi_da
*/
if (at->at_identify.support_dsm) {
rdata->inquiry_data.vendor_specific1[0] =
at->at_identify.support_dsm &ATA_SUPPORT_DSM_TRIM;
rdata->inquiry_data.vendor_specific1[1] =
at->at_identify.max_dsm_blocks;
}
break;
case READ_CAPACITY_16:
if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) {
ccbh->status = CAM_REQ_INVALID;
break;
}
if (rdata_len < sizeof(rdata->read_capacity_data_16)) {
ccbh->status = CAM_CCB_LEN_ERR;
break;
}
/* fall through */
case READ_CAPACITY:
if (rdata_len < sizeof(rdata->read_capacity_data)) {
ccbh->status = CAM_CCB_LEN_ERR;
break;
}
capacity = at->at_capacity;
bzero(rdata, rdata_len);
if (cdb->generic.opcode == READ_CAPACITY) {
rdata_len = sizeof(rdata->read_capacity_data);
if (capacity > 0xFFFFFFFFU)
capacity = 0xFFFFFFFFU;
bzero(&rdata->read_capacity_data, rdata_len);
scsi_ulto4b((u_int32_t)capacity - 1,
rdata->read_capacity_data.addr);
scsi_ulto4b(512, rdata->read_capacity_data.length);
} else {
rdata_len = sizeof(rdata->read_capacity_data_16);
bzero(&rdata->read_capacity_data_16, rdata_len);
scsi_u64to8b(capacity - 1,
rdata->read_capacity_data_16.addr);
scsi_ulto4b(512, rdata->read_capacity_data_16.length);
}
ccbh->status = CAM_REQ_CMP;
break;
case SYNCHRONIZE_CACHE:
/*
* Synchronize cache. Specification says this can take
* greater then 30 seconds so give it at least 45.
*/
fis = xa->fis;
fis->flags = ATA_H2D_FLAGS_CMD;
fis->command = ATA_C_FLUSH_CACHE;
fis->device = 0;
if (xa->timeout < 45000)
xa->timeout = 45000;
xa->datalen = 0;
xa->flags = 0;
xa->complete = ahci_ata_complete_disk_synchronize_cache;
break;
case TRIM:
fis = xa->fis;
fis->command = ATA_C_DATA_SET_MANAGEMENT;
fis->features = (u_int8_t)ATA_SF_DSM_TRIM;
fis->features_exp = (u_int8_t)(ATA_SF_DSM_TRIM>> 8);
xa->flags = ATA_F_WRITE;
fis->flags = ATA_H2D_FLAGS_CMD;
xa->data = csio->data_ptr;
xa->datalen = csio->dxfer_len;
xa->timeout = ccbh->timeout*50; /* milliseconds */
fis->sector_count =(u_int8_t)(xa->datalen/512);
fis->sector_count_exp =(u_int8_t)((xa->datalen/512)>>8);
lba = 0;
fis->lba_low = (u_int8_t)lba;
fis->lba_mid = (u_int8_t)(lba >> 8);
fis->lba_high = (u_int8_t)(lba >> 16);
fis->lba_low_exp = (u_int8_t)(lba >> 24);
fis->lba_mid_exp = (u_int8_t)(lba >> 32);
fis->lba_high_exp = (u_int8_t)(lba >> 40);
fis->device = ATA_H2D_DEVICE_LBA;
xa->data = csio->data_ptr;
xa->complete = ahci_ata_complete_disk_rw;
ccbh->status = CAM_REQ_INPROG;
break;
case TEST_UNIT_READY:
case START_STOP_UNIT:
case PREVENT_ALLOW:
/*
* Just silently return success
*/
ccbh->status = CAM_REQ_CMP;
rdata_len = 0;
break;
case ATA_PASS_12:
atp12 = &cdb->ata_pass_12;
fis = xa->fis;
/*
* Figure out the flags to be used, depending on the direction of the
* CAM request.
*/
switch (ccbh->flags & CAM_DIR_MASK) {
case CAM_DIR_IN:
xa->flags = ATA_F_READ;
break;
case CAM_DIR_OUT:
xa->flags = ATA_F_WRITE;
break;
default:
xa->flags = 0;
}
xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE;
xa->data = csio->data_ptr;
xa->datalen = csio->dxfer_len;
xa->complete = ahci_ata_complete_disk_rw;
xa->timeout = ccbh->timeout;
/*
* Populate the fis from the information we received through CAM
* ATA passthrough.
*/
fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */
fis->features = atp12->features;
fis->sector_count = atp12->sector_count;
fis->lba_low = atp12->lba_low;
fis->lba_mid = atp12->lba_mid;
fis->lba_high = atp12->lba_high;
fis->device = atp12->device; /* maybe always 0? */
fis->command = atp12->command;
fis->control = atp12->control;
/*
* Mark as in progress so it is sent to the device.
*/
ccbh->status = CAM_REQ_INPROG;
break;
case ATA_PASS_16:
atp16 = &cdb->ata_pass_16;
fis = xa->fis;
/*
* Figure out the flags to be used, depending on the direction of the
* CAM request.
*/
switch (ccbh->flags & CAM_DIR_MASK) {
case CAM_DIR_IN:
xa->flags = ATA_F_READ;
break;
case CAM_DIR_OUT:
xa->flags = ATA_F_WRITE;
break;
default:
xa->flags = 0;
}
xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE;
xa->data = csio->data_ptr;
xa->datalen = csio->dxfer_len;
xa->complete = ahci_ata_complete_disk_rw;
xa->timeout = ccbh->timeout;
/*
* Populate the fis from the information we received through CAM
* ATA passthrough.
*/
fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */
fis->features = atp16->features;
fis->features_exp = atp16->features_ext;
fis->sector_count = atp16->sector_count;
fis->sector_count_exp = atp16->sector_count_ext;
fis->lba_low = atp16->lba_low;
fis->lba_low_exp = atp16->lba_low_ext;
fis->lba_mid = atp16->lba_mid;
fis->lba_mid_exp = atp16->lba_mid_ext;
fis->lba_high = atp16->lba_high;
fis->lba_mid_exp = atp16->lba_mid_ext;
fis->device = atp16->device; /* maybe always 0? */
fis->command = atp16->command;
/*
* Mark as in progress so it is sent to the device.
*/
ccbh->status = CAM_REQ_INPROG;
break;
default:
switch(cdb->generic.opcode) {
case READ_6:
lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
xa->flags = ATA_F_READ;
break;
case READ_10:
lba = scsi_4btoul(cdb->rw_10.addr);
count = scsi_2btoul(cdb->rw_10.length);
xa->flags = ATA_F_READ;
break;
case READ_12:
lba = scsi_4btoul(cdb->rw_12.addr);
count = scsi_4btoul(cdb->rw_12.length);
xa->flags = ATA_F_READ;
break;
case READ_16:
lba = scsi_8btou64(cdb->rw_16.addr);
count = scsi_4btoul(cdb->rw_16.length);
xa->flags = ATA_F_READ;
break;
case WRITE_6:
lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF;
count = cdb->rw_6.length ? cdb->rw_6.length : 0x100;
xa->flags = ATA_F_WRITE;
break;
case WRITE_10:
lba = scsi_4btoul(cdb->rw_10.addr);
count = scsi_2btoul(cdb->rw_10.length);
xa->flags = ATA_F_WRITE;
break;
case WRITE_12:
lba = scsi_4btoul(cdb->rw_12.addr);
count = scsi_4btoul(cdb->rw_12.length);
xa->flags = ATA_F_WRITE;
break;
case WRITE_16:
lba = scsi_8btou64(cdb->rw_16.addr);
count = scsi_4btoul(cdb->rw_16.length);
xa->flags = ATA_F_WRITE;
break;
default:
ccbh->status = CAM_REQ_INVALID;
break;
}
if (ccbh->status != CAM_REQ_INPROG)
break;
fis = xa->fis;
fis->flags = ATA_H2D_FLAGS_CMD;
fis->lba_low = (u_int8_t)lba;
fis->lba_mid = (u_int8_t)(lba >> 8);
fis->lba_high = (u_int8_t)(lba >> 16);
fis->device = ATA_H2D_DEVICE_LBA;
/*
* NCQ only for direct-attached disks, do not currently
* try to use NCQ with port multipliers.
*/
if (at->at_ncqdepth > 1 &&
ap->ap_type == ATA_PORT_T_DISK &&
(ap->ap_sc->sc_cap & AHCI_REG_CAP_SNCQ) &&
(ccbh->flags & CAM_POLLED) == 0) {
/*
* Use NCQ - always uses 48 bit addressing
*/
xa->flags |= ATA_F_NCQ;
fis->command = (xa->flags & ATA_F_WRITE) ?
ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA;
fis->lba_low_exp = (u_int8_t)(lba >> 24);
fis->lba_mid_exp = (u_int8_t)(lba >> 32);
fis->lba_high_exp = (u_int8_t)(lba >> 40);
fis->sector_count = xa->tag << 3;
fis->features = (u_int8_t)count;
fis->features_exp = (u_int8_t)(count >> 8);
} else if (count > 0x100 || lba > 0x0FFFFFFFU) {
