int nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba, uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg) { struct nvme_request *req; struct nvme_command *cmd; req = nvme_allocate_request_vaddr(payload, lba_count*nvme_ns_get_sector_size(ns), cb_fn, cb_arg); if (req == NULL) return (ENOMEM); cmd = &req->cmd; cmd->opc = NVME_OPC_WRITE; cmd->nsid = ns->id; /* TODO: create a write command data structure */ *(uint64_t *)&cmd->cdw10 = lba; cmd->cdw12 = lba_count-1; nvme_ctrlr_submit_io_request(ns->ctrlr, req); return (0); }
int nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload, uint8_t num_ranges, nvme_cb_fn_t cb_fn, void *cb_arg) { struct nvme_request *req; struct nvme_command *cmd; req = nvme_allocate_request_vaddr(payload, num_ranges * sizeof(struct nvme_dsm_range), cb_fn, cb_arg); if (req == NULL) return (ENOMEM); cmd = &req->cmd; cmd->opc = NVME_OPC_DATASET_MANAGEMENT; cmd->nsid = ns->id; /* TODO: create a delete command data structure */ cmd->cdw10 = num_ranges - 1; cmd->cdw11 = NVME_DSM_ATTR_DEALLOCATE; nvme_ctrlr_submit_io_request(ns->ctrlr, req); return (0); }
static void nvme_sim_nvmeio(struct cam_sim *sim, union ccb *ccb) { struct ccb_nvmeio *nvmeio = &ccb->nvmeio; struct nvme_request *req; void *payload; uint32_t size; struct nvme_controller *ctrlr; ctrlr = sim2ctrlr(sim); payload = nvmeio->data_ptr; size = nvmeio->dxfer_len; /* SG LIST ??? */ if ((nvmeio->ccb_h.flags & CAM_DATA_MASK) == CAM_DATA_BIO) req = nvme_allocate_request_bio((struct bio *)payload, nvme_sim_nvmeio_done, ccb); else if (payload == NULL) req = nvme_allocate_request_null(nvme_sim_nvmeio_done, ccb); else req = nvme_allocate_request_vaddr(payload, size, nvme_sim_nvmeio_done, ccb); if (req == NULL) { nvmeio->ccb_h.status = CAM_RESRC_UNAVAIL; xpt_done(ccb); return; } memcpy(&req->cmd, &ccb->nvmeio.cmd, sizeof(ccb->nvmeio.cmd)); nvme_ctrlr_submit_io_request(ctrlr, req); ccb->ccb_h.status |= CAM_SIM_QUEUED; }
void nvme_ctrlr_cmd_get_log_page(struct nvme_controller *ctrlr, uint8_t log_page, uint32_t nsid, void *payload, uint32_t payload_size, nvme_cb_fn_t cb_fn, void *cb_arg) { struct nvme_request *req; struct nvme_command *cmd; req = nvme_allocate_request_vaddr(payload, payload_size, cb_fn, cb_arg); cmd = &req->cmd; cmd->opc = NVME_OPC_GET_LOG_PAGE; cmd->nsid = nsid; cmd->cdw10 = ((payload_size/sizeof(uint32_t)) - 1) << 16; cmd->cdw10 |= log_page; nvme_ctrlr_submit_admin_request(ctrlr, req); }
void nvme_ctrlr_cmd_identify_namespace(struct nvme_controller *ctrlr, uint16_t nsid, void *payload, nvme_cb_fn_t cb_fn, void *cb_arg) { struct nvme_request *req; struct nvme_command *cmd; req = nvme_allocate_request_vaddr(payload, sizeof(struct nvme_namespace_data), cb_fn, cb_arg); cmd = &req->cmd; cmd->opc = NVME_OPC_IDENTIFY; /* * TODO: create an identify command data structure */ cmd->nsid = nsid; nvme_ctrlr_submit_admin_request(ctrlr, req); }
void nvme_ctrlr_cmd_identify_controller(struct nvme_controller *ctrlr, void *payload, nvme_cb_fn_t cb_fn, void *cb_arg) { struct nvme_request *req; struct nvme_command *cmd; req = nvme_allocate_request_vaddr(payload, sizeof(struct nvme_controller_data), cb_fn, cb_arg); cmd = &req->cmd; cmd->opc = NVME_OPC_IDENTIFY; /* * TODO: create an identify command data structure, which * includes this CNS bit in cdw10. */ cmd->cdw10 = 1; nvme_ctrlr_submit_admin_request(ctrlr, req); }