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);
}
