/* * Read a PM register */ int ahci_pm_read(struct ahci_port *ap, int target, int which, u_int32_t *datap) { struct ata_xfer *xa; int error; xa = ahci_ata_get_xfer(ap, ap->ap_ata[15]); xa->fis->type = ATA_FIS_TYPE_H2D; xa->fis->flags = ATA_H2D_FLAGS_CMD | 15; xa->fis->command = ATA_C_READ_PM; xa->fis->features = which; xa->fis->device = target | ATA_H2D_DEVICE_LBA; xa->fis->control = ATA_FIS_CONTROL_4BIT; xa->complete = ahci_pm_dummy_done; xa->datalen = 0; xa->flags = ATA_F_POLL | ATA_F_AUTOSENSE; xa->timeout = 1000; if (ahci_ata_cmd(xa) == ATA_S_COMPLETE) { *datap = xa->rfis.sector_count | (xa->rfis.lba_low << 8) | (xa->rfis.lba_mid << 16) | (xa->rfis.lba_high << 24); error = 0; } else { kprintf("%s.%d pm_read SCA[%d] failed\n", PORTNAME(ap), target, which); *datap = 0; error = EIO; } ahci_ata_put_xfer(xa); return (error); }
/* * Write a PM register */ int ahci_pm_write(struct ahci_port *ap, int target, int which, u_int32_t data) { struct ata_xfer *xa; int error; xa = ahci_ata_get_xfer(ap, ap->ap_ata[15]); xa->fis->type = ATA_FIS_TYPE_H2D; xa->fis->flags = ATA_H2D_FLAGS_CMD | 15; xa->fis->command = ATA_C_WRITE_PM; xa->fis->features = which; xa->fis->device = target | ATA_H2D_DEVICE_LBA; xa->fis->sector_count = (u_int8_t)data; xa->fis->lba_low = (u_int8_t)(data >> 8); xa->fis->lba_mid = (u_int8_t)(data >> 16); xa->fis->lba_high = (u_int8_t)(data >> 24); xa->fis->control = ATA_FIS_CONTROL_4BIT; xa->complete = ahci_pm_dummy_done; xa->datalen = 0; xa->flags = ATA_F_POLL; xa->timeout = 1000; if (ahci_ata_cmd(xa) == ATA_S_COMPLETE) error = 0; else error = EIO; ahci_ata_put_xfer(xa); return(error); }
/* * Setting the transfer mode is irrelevant for the SATA transport * but some (atapi) devices seem to need it anyway. In addition * if we are running through a SATA->PATA converter for some reason * beyond my comprehension we might have to set the mode. * * We only support DMA modes for SATA attached devices, so don't bother * with legacy modes. */ static int ahci_set_xfer(struct ahci_port *ap, struct ata_port *atx) { struct ata_port *at; struct ata_xfer *xa; u_int16_t mode; u_int16_t mask; at = atx ? atx : ap->ap_ata[0]; /* * Figure out the supported UDMA mode. Ignore other legacy modes. */ mask = le16toh(at->at_identify.ultradma); if ((mask & 0xFF) == 0 || mask == 0xFFFF) return(0); mask &= 0xFF; mode = 0x4F; while ((mask & 0x8000) == 0) { mask <<= 1; --mode; } /* * SATA atapi devices often still report a dma mode, even though * it is irrelevant for SATA transport. It is also possible that * we are running through a SATA->PATA converter and seeing the * PATA dma mode. * * In this case the device may require a (dummy) SETXFER to be * sent before it will work properly. */ xa = ahci_ata_get_xfer(ap, atx); xa->complete = ahci_ata_dummy_done; xa->fis->command = ATA_C_SET_FEATURES; xa->fis->features = ATA_SF_SETXFER; xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; xa->fis->sector_count = mode; xa->flags = ATA_F_PIO | ATA_F_POLL; xa->timeout = 1000; xa->datalen = 0; if (ahci_ata_cmd(xa) != ATA_S_COMPLETE) { kprintf("%s: Unable to set dummy xfer mode \n", ATANAME(ap, atx)); } else if (bootverbose) { kprintf("%s: Set dummy xfer mode to %02x\n", ATANAME(ap, atx), mode); } ahci_ata_put_xfer(xa); return(0); }
/* * DISK-specific probe after initial ident */ static int ahci_cam_probe_disk(struct ahci_port *ap, struct ata_port *atx) { struct ata_port *at; struct ata_xfer *xa; at = atx ? atx : ap->ap_ata[0]; /* * Set dummy xfer mode */ ahci_set_xfer(ap, atx); /* * Enable write cache if supported * * NOTE: "WD My Book" external disk devices have a very poor * daughter board between the the ESATA and the HD. Sending * any ATA_C_SET_FEATURES commands will break the hardware port * with a fatal protocol error. However, this device also * indicates that WRITECACHE is already on and READAHEAD is * not supported so we avoid the issue. */ if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) && (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) { xa = ahci_ata_get_xfer(ap, atx); xa->complete = ahci_ata_dummy_done; xa->fis->command = ATA_C_SET_FEATURES; xa->fis->features = ATA_SF_WRITECACHE_EN; /* xa->fis->features = ATA_SF_LOOKAHEAD_EN; */ xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; xa->fis->device = 0; xa->flags = ATA_F_PIO | ATA_F_POLL; xa->timeout = 1000; xa->datalen = 0; if (ahci_ata_cmd(xa) == ATA_S_COMPLETE) at->at_features |= ATA_PORT_F_WCACHE; else kprintf("%s: Unable to enable write-caching\n", ATANAME(ap, atx)); ahci_ata_put_xfer(xa); } /* * Enable readahead if supported */ if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) && (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) { xa = ahci_ata_get_xfer(ap, atx); xa->complete = ahci_ata_dummy_done; xa->fis->command = ATA_C_SET_FEATURES; xa->fis->features = ATA_SF_LOOKAHEAD_EN; xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; xa->fis->device = 0; xa->flags = ATA_F_PIO | ATA_F_POLL; xa->timeout = 1000; xa->datalen = 0; if (ahci_ata_cmd(xa) == ATA_S_COMPLETE) at->at_features |= ATA_PORT_F_RAHEAD; else kprintf("%s: Unable to enable read-ahead\n", ATANAME(ap, atx)); ahci_ata_put_xfer(xa); } /* * FREEZE LOCK the device so malicious users can't lock it on us. * As there is no harm in issuing this to devices that don't * support the security feature set we just send it, and don't bother * checking if the device sends a command abort to tell us it doesn't * support it */ if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) && (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 && (AhciNoFeatures & (1 << ap->ap_num)) == 0) { xa = ahci_ata_get_xfer(ap, atx); xa->complete = ahci_ata_dummy_done; xa->fis->command = ATA_C_SEC_FREEZE_LOCK; xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; xa->flags = ATA_F_PIO | ATA_F_POLL; xa->timeout = 1000; xa->datalen = 0; if (ahci_ata_cmd(xa) == ATA_S_COMPLETE) at->at_features |= ATA_PORT_F_FRZLCK; else kprintf("%s: Unable to set security freeze\n", ATANAME(ap, atx)); ahci_ata_put_xfer(xa); } return (0); }
/* * Once the AHCI port has been attached we need to probe for a device or * devices on the port and setup various options. * * If at is NULL we are probing the direct-attached device on the port, * which may or may not be a port multiplier. */ int ahci_cam_probe(struct ahci_port *ap, struct ata_port *atx) { struct ata_port *at; struct ata_xfer *xa; u_int64_t capacity; u_int64_t capacity_bytes; int model_len; int firmware_len; int serial_len; int error; int devncqdepth; int i; const char *model_id; const char *firmware_id; const char *serial_id; const char *wcstr; const char *rastr; const char *scstr; const char *type; error = EIO; /* * Delayed CAM attachment for initial probe, sim may be NULL */ if (ap->ap_sim == NULL) return(0); /* * A NULL atx indicates a probe of the directly connected device. * A non-NULL atx indicates a device connected via a port multiplier. * We need to preserve atx for calls to ahci_ata_get_xfer(). * * at is always non-NULL. For directly connected devices we supply * an (at) pointing to target 0. */ if (atx == NULL) { at = ap->ap_ata[0]; /* direct attached - device 0 */ if (ap->ap_type == ATA_PORT_T_PM) { kprintf("%s: Found Port Multiplier\n", ATANAME(ap, atx)); return (0); } at->at_type = ap->ap_type; } else { at = atx; if (atx->at_type == ATA_PORT_T_PM) { kprintf("%s: Bogus device, reducing port count to %d\n", ATANAME(ap, atx), atx->at_target); if (ap->ap_pmcount > atx->at_target) ap->ap_pmcount = atx->at_target; goto err; } } if (ap->ap_type == ATA_PORT_T_NONE) goto err; if (at->at_type == ATA_PORT_T_NONE) goto err; /* * Issue identify, saving the result */ xa = ahci_ata_get_xfer(ap, atx); xa->complete = ahci_ata_dummy_done; xa->data = &at->at_identify; xa->datalen = sizeof(at->at_identify); xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; switch(at->at_type) { case ATA_PORT_T_DISK: xa->fis->command = ATA_C_IDENTIFY; type = "DISK"; break; case ATA_PORT_T_ATAPI: xa->fis->command = ATA_C_ATAPI_IDENTIFY; xa->flags |= ATA_F_AUTOSENSE; type = "ATAPI"; break; default: xa->fis->command = ATA_C_ATAPI_IDENTIFY; type = "UNKNOWN(ATAPI?)"; break; } xa->fis->features = 0; xa->fis->device = 0; xa->timeout = 1000; if (ahci_ata_cmd(xa) != ATA_S_COMPLETE) { kprintf("%s: Detected %s device but unable to IDENTIFY\n", ATANAME(ap, atx), type); ahci_ata_put_xfer(xa); goto err; } ahci_ata_put_xfer(xa); ata_fix_identify(&at->at_identify); /* * Read capacity using SATA probe info. */ if (le16toh(at->at_identify.cmdset83) & 0x0400) { /* LBA48 feature set supported */ capacity = 0; for (i = 3; i >= 0; --i) { capacity <<= 16; capacity += le16toh(at->at_identify.addrsecxt[i]); } } else { capacity = le16toh(at->at_identify.addrsec[1]); capacity <<= 16; capacity += le16toh(at->at_identify.addrsec[0]); } if (capacity == 0) capacity = 1024 * 1024 / 512; at->at_capacity = capacity; if (atx == NULL) ap->ap_probe = ATA_PROBE_GOOD; capacity_bytes = capacity * 512; /* * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated * number of slots and limit the number of CAM ccb's to one less * so we always have a slot available for recovery. * * NCQ is not used if ap_ncqdepth is 1 or the host controller does * not support it, and in that case the driver can handle extra * ccb's. * * NCQ is currently used only with direct-attached disks. It is * not used with port multipliers or direct-attached ATAPI devices. * * Remember at least one extra CCB needs to be reserved for the * error ccb. */ if ((ap->ap_sc->sc_cap & AHCI_REG_CAP_SNCQ) && ap->ap_type == ATA_PORT_T_DISK && (le16toh(at->at_identify.satacap) & (1 << 8))) { at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; devncqdepth = at->at_ncqdepth; if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) at->at_ncqdepth = ap->ap_sc->sc_ncmds; if (at->at_ncqdepth > 1) { for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { xa = ahci_ata_get_xfer(ap, atx); if (xa->tag < at->at_ncqdepth) { xa->state = ATA_S_COMPLETE; ahci_ata_put_xfer(xa); } } if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { cam_sim_set_max_tags(ap->ap_sim, at->at_ncqdepth - 1); } } } else { devncqdepth = 0; } model_len = sizeof(at->at_identify.model); model_id = at->at_identify.model; ahci_strip_string(&model_id, &model_len); firmware_len = sizeof(at->at_identify.firmware); firmware_id = at->at_identify.firmware; ahci_strip_string(&firmware_id, &firmware_len); serial_len = sizeof(at->at_identify.serial); serial_id = at->at_identify.serial; ahci_strip_string(&serial_id, &serial_len); /* * Generate informatiive strings. * * NOTE: We do not automatically set write caching, lookahead, * or the security state for ATAPI devices. */ if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) wcstr = "enabled"; else if (at->at_type == ATA_PORT_T_ATAPI) wcstr = "disabled"; else wcstr = "enabling"; } else { wcstr = "notsupp"; } if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) rastr = "enabled"; else if (at->at_type == ATA_PORT_T_ATAPI) rastr = "disabled"; else rastr = "enabling"; } else { rastr = "notsupp"; } if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { if (at->at_identify.securestatus & ATA_SECURE_FROZEN) scstr = "frozen"; else if (at->at_type == ATA_PORT_T_ATAPI) scstr = "unfrozen"; else if (AhciNoFeatures & (1 << ap->ap_num)) scstr = "<disabled>"; else scstr = "freezing"; } else { scstr = "notsupp"; } kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n" "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " "capacity=%lld.%02dMB\n", ATANAME(ap, atx), type, model_len, model_len, model_id, firmware_len, firmware_len, firmware_id, serial_len, serial_len, serial_id, ATANAME(ap, atx), devncqdepth, ap->ap_sc->sc_ncmds, at->at_identify.satacap, at->at_identify.satafsup, (at->at_ncqdepth > 1 ? "YES" : "NO"), (long long)capacity_bytes / (1024 * 1024), (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) ); kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", ATANAME(ap, atx), at->at_identify.features85, at->at_identify.features86, at->at_identify.features87, wcstr, rastr, scstr ); /* * Additional type-specific probing */ switch(at->at_type) { case ATA_PORT_T_DISK: error = ahci_cam_probe_disk(ap, atx); break; case ATA_PORT_T_ATAPI: error = ahci_cam_probe_atapi(ap, atx); break; default: error = EIO; break; } err: if (error) { at->at_probe = ATA_PROBE_FAILED; if (atx == NULL) ap->ap_probe = at->at_probe; } else { at->at_probe = ATA_PROBE_GOOD; if (atx == NULL) ap->ap_probe = at->at_probe; } return (error); }
/* * 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) {