/*********************************************************************** * Handle a request for action from CAM */ static void amr_cam_action(struct cam_sim *sim, union ccb *ccb) { struct amr_softc *sc = cam_sim_softc(sim); switch(ccb->ccb_h.func_code) { /* * Perform SCSI I/O to a physical device. */ case XPT_SCSI_IO: { struct ccb_hdr *ccbh = &ccb->ccb_h; struct ccb_scsiio *csio = &ccb->csio; /* Validate the CCB */ ccbh->status = CAM_REQ_INPROG; /* check the CDB length */ if (csio->cdb_len > AMR_MAX_EXTCDB_LEN) ccbh->status = CAM_REQ_INVALID; if ((csio->cdb_len > AMR_MAX_CDB_LEN) && (sc->support_ext_cdb == 0)) ccbh->status = CAM_REQ_INVALID; /* check that the CDB pointer is not to a physical address */ if ((ccbh->flags & CAM_CDB_POINTER) && (ccbh->flags & CAM_CDB_PHYS)) ccbh->status = CAM_REQ_INVALID; /* * if there is data transfer, it must be to/from a virtual * address */ if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { if (ccbh->flags & CAM_DATA_PHYS) /* we can't map it */ ccbh->status = CAM_REQ_INVALID; if (ccbh->flags & CAM_SCATTER_VALID) /* we want to do the s/g setup */ ccbh->status = CAM_REQ_INVALID; } /* * If the command is to a LUN other than 0, fail it. * This is probably incorrect, but during testing the * firmware did not seem to respect the LUN field, and thus * devices appear echoed. */ if (csio->ccb_h.target_lun != 0) ccbh->status = CAM_DEV_NOT_THERE; /* if we're happy with the request, queue it for attention */ if (ccbh->status == CAM_REQ_INPROG) { /* save the channel number in the ccb */ csio->ccb_h.sim_priv.entries[0].field= cam_sim_bus(sim); amr_enqueue_ccb(sc, ccb); amr_startio(sc); return; } break; } case XPT_CALC_GEOMETRY: { cam_calc_geometry(&ccb->ccg, /*extended*/1); break; } /* * Return path stats. Some of these should probably be amended. */ case XPT_PATH_INQ: { struct ccb_pathinq *cpi = & ccb->cpi; debug(3, "XPT_PATH_INQ"); cpi->version_num = 1; /* XXX??? */ cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; cpi->target_sprt = 0; cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN; cpi->hba_eng_cnt = 0; cpi->max_target = AMR_MAX_TARGETS; cpi->max_lun = 0 /* AMR_MAX_LUNS*/; cpi->initiator_id = 7; /* XXX variable? */ strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strncpy(cpi->hba_vid, "LSI", HBA_IDLEN); strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); cpi->unit_number = cam_sim_unit(sim); cpi->bus_id = cam_sim_bus(sim); cpi->base_transfer_speed = 132 * 1024; /* XXX */ cpi->transport = XPORT_SPI; cpi->transport_version = 2; cpi->protocol = PROTO_SCSI; cpi->protocol_version = SCSI_REV_2; cpi->ccb_h.status = CAM_REQ_CMP; break; } case XPT_RESET_BUS: { struct ccb_pathinq *cpi = & ccb->cpi; debug(1, "XPT_RESET_BUS"); cpi->ccb_h.status = CAM_REQ_CMP; break; } case XPT_RESET_DEV: { debug(1, "XPT_RESET_DEV"); ccb->ccb_h.status = CAM_REQ_CMP; break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts = &(ccb->cts); debug(3, "XPT_GET_TRAN_SETTINGS"); struct ccb_trans_settings_scsi *scsi; struct ccb_trans_settings_spi *spi; 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; if (cts->type == CTS_TYPE_USER_SETTINGS) { ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; break; } spi->flags = CTS_SPI_FLAGS_DISC_ENB; spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT; spi->sync_period = 6; /* 40MHz how wide is this bus? */ spi->sync_offset = 31; /* How to extract this from board? */ 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; break; } case XPT_SET_TRAN_SETTINGS: debug(3, "XPT_SET_TRAN_SETTINGS"); ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; break; /* * Reject anything else as unsupported. */ default: /* we can't do this */ ccb->ccb_h.status = CAM_REQ_INVALID; break; } mtx_assert(&sc->amr_list_lock, MA_OWNED); xpt_done(ccb); }
/******************************************************************************** * Handle a request for action from CAM */ static void amr_cam_action(struct cam_sim *sim, union ccb *ccb) { struct amr_softc *sc = cam_sim_softc(sim); switch(ccb->ccb_h.func_code) { /* * Perform SCSI I/O to a physical device. */ case XPT_SCSI_IO: { struct ccb_hdr *ccbh = &ccb->ccb_h; struct ccb_scsiio *csio = &ccb->csio; /* Validate the CCB */ ccbh->status = CAM_REQ_INPROG; /* check the CDB length */ if (csio->cdb_len > AMR_MAX_EXTCDB_LEN) ccbh->status = CAM_REQ_CMP_ERR; if ((csio->cdb_len > AMR_MAX_CDB_LEN) && (sc->support_ext_cdb == 0 )) ccbh->status = CAM_REQ_CMP_ERR; /* check that the CDB pointer is not to a physical address */ if ((ccbh->flags & CAM_CDB_POINTER) && (ccbh->flags & CAM_CDB_PHYS)) ccbh->status = CAM_REQ_CMP_ERR; /* if there is data transfer, it must be to/from a virtual address */ if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { if (ccbh->flags & CAM_DATA_PHYS) /* we can't map it */ ccbh->status = CAM_REQ_CMP_ERR; if (ccbh->flags & CAM_SCATTER_VALID) /* we want to do the s/g setup */ ccbh->status = CAM_REQ_CMP_ERR; } /* * If the command is to a LUN other than 0, fail it. * This is probably incorrect, but during testing the firmware did not * seem to respect the LUN field, and thus devices appear echoed. */ if (csio->ccb_h.target_lun != 0) ccbh->status = CAM_REQ_CMP_ERR; /* if we're happy with the request, queue it for attention */ if (ccbh->status == CAM_REQ_INPROG) { /* save the channel number in the ccb */ csio->ccb_h.sim_priv.entries[0].field = cam_sim_bus(sim); amr_enqueue_ccb(sc, ccb); amr_startio(sc); return; } break; } case XPT_CALC_GEOMETRY: { struct ccb_calc_geometry *ccg = &ccb->ccg; u_int32_t size_in_mb; u_int32_t secs_per_cylinder; size_in_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size); if (size_in_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; break; } /* * Return path stats. Some of these should probably be * amended. */ case XPT_PATH_INQ: { struct ccb_pathinq *cpi = & ccb->cpi; debug(3, "XPT_PATH_INQ"); cpi->version_num = 1; /* XXX??? */ cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; cpi->target_sprt = 0; cpi->hba_misc = PIM_NOBUSRESET; cpi->hba_eng_cnt = 0; cpi->max_target = AMR_MAX_TARGETS; cpi->max_lun = 0 /* AMR_MAX_LUNS*/; cpi->initiator_id = 7; /* XXX variable? */ strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strncpy(cpi->hba_vid, "LSI", HBA_IDLEN); strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); cpi->unit_number = cam_sim_unit(sim); cpi->bus_id = cam_sim_bus(sim); cpi->base_transfer_speed = 132 * 1024; /* XXX get from controller? */ cpi->ccb_h.status = CAM_REQ_CMP; break; } case XPT_RESET_BUS: { struct ccb_pathinq *cpi = & ccb->cpi; debug(1, "XPT_RESET_BUS"); cpi->ccb_h.status = CAM_REQ_CMP; break; } case XPT_RESET_DEV: { debug(1, "XPT_RESET_DEV"); ccb->ccb_h.status = CAM_REQ_CMP; break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts; debug(3, "XPT_GET_TRAN_SETTINGS"); cts = &(ccb->cts); if ((cts->flags & CCB_TRANS_USER_SETTINGS) == 0) { ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; break; } cts->flags = CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB; cts->bus_width = MSG_EXT_WDTR_BUS_32_BIT; cts->sync_period = 6; /* 40MHz how wide is this bus? */ cts->sync_offset = 31; /* How to extract this from board? */ cts->valid = CCB_TRANS_SYNC_RATE_VALID | CCB_TRANS_SYNC_OFFSET_VALID | CCB_TRANS_BUS_WIDTH_VALID | CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID; ccb->ccb_h.status = CAM_REQ_CMP; break; } case XPT_SET_TRAN_SETTINGS: debug(3, "XPT_SET_TRAN_SETTINGS"); ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; break; /* * Reject anything else as unsupported. */ default: /* we can't do this */ ccb->ccb_h.status = CAM_REQ_INVALID; break; } xpt_done(ccb); }