28 static u32 nvmet_feat_data_len(struct nvmet_req *req, u32 cdw10)  in nvmet_feat_data_len()  argument
32 		return sizeof(req->sq->ctrl->hostid);  in nvmet_feat_data_len()
43 static void nvmet_execute_get_log_page_noop(struct nvmet_req *req)  in nvmet_execute_get_log_page_noop()  argument
45 	nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->transfer_len));  in nvmet_execute_get_log_page_noop()
48 static void nvmet_execute_get_log_page_error(struct nvmet_req *req)  in nvmet_execute_get_log_page_error()  argument
50 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_get_log_page_error()
60 		if (nvmet_copy_to_sgl(req, offset, &ctrl->slots[slot],  in nvmet_execute_get_log_page_error()
71 	nvmet_req_complete(req, 0);  in nvmet_execute_get_log_page_error()
74 static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req,  in nvmet_get_smart_log_nsid()  argument
80 	status = nvmet_req_find_ns(req);  in nvmet_get_smart_log_nsid()
85 	if (!req->ns->bdev)  in nvmet_get_smart_log_nsid()
88 	host_reads = part_stat_read(req->ns->bdev, ios[READ]);  in nvmet_get_smart_log_nsid()
90 		DIV_ROUND_UP(part_stat_read(req->ns->bdev, sectors[READ]), 1000);  in nvmet_get_smart_log_nsid()
91 	host_writes = part_stat_read(req->ns->bdev, ios[WRITE]);  in nvmet_get_smart_log_nsid()
93 		DIV_ROUND_UP(part_stat_read(req->ns->bdev, sectors[WRITE]), 1000);  in nvmet_get_smart_log_nsid()
103 static u16 nvmet_get_smart_log_all(struct nvmet_req *req,  in nvmet_get_smart_log_all()  argument
112 	ctrl = req->sq->ctrl;  in nvmet_get_smart_log_all()
133 static void nvmet_execute_get_log_page_smart(struct nvmet_req *req)  in nvmet_execute_get_log_page_smart()  argument
139 	if (req->transfer_len != sizeof(*log))  in nvmet_execute_get_log_page_smart()
146 	if (req->cmd->get_log_page.nsid == cpu_to_le32(NVME_NSID_ALL))  in nvmet_execute_get_log_page_smart()
147 		status = nvmet_get_smart_log_all(req, log);  in nvmet_execute_get_log_page_smart()
149 		status = nvmet_get_smart_log_nsid(req, log);  in nvmet_execute_get_log_page_smart()
153 	spin_lock_irqsave(&req->sq->ctrl->error_lock, flags);  in nvmet_execute_get_log_page_smart()
154 	put_unaligned_le64(req->sq->ctrl->err_counter,  in nvmet_execute_get_log_page_smart()
156 	spin_unlock_irqrestore(&req->sq->ctrl->error_lock, flags);  in nvmet_execute_get_log_page_smart()
158 	status = nvmet_copy_to_sgl(req, 0, log, sizeof(*log));  in nvmet_execute_get_log_page_smart()
162 	nvmet_req_complete(req, status);  in nvmet_execute_get_log_page_smart()
189 static void nvmet_execute_get_log_cmd_effects_ns(struct nvmet_req *req)  in nvmet_execute_get_log_cmd_effects_ns()  argument
200 	switch (req->cmd->get_log_page.csi) {  in nvmet_execute_get_log_cmd_effects_ns()
217 	status = nvmet_copy_to_sgl(req, 0, log, sizeof(*log));  in nvmet_execute_get_log_cmd_effects_ns()
221 	nvmet_req_complete(req, status);  in nvmet_execute_get_log_cmd_effects_ns()
224 static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)  in nvmet_execute_get_log_changed_ns()  argument
226 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_get_log_changed_ns()
230 	if (req->transfer_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32))  in nvmet_execute_get_log_changed_ns()
238 	status = nvmet_copy_to_sgl(req, 0, ctrl->changed_ns_list, len);  in nvmet_execute_get_log_changed_ns()
240 		status = nvmet_zero_sgl(req, len, req->transfer_len - len);  in nvmet_execute_get_log_changed_ns()
242 	nvmet_clear_aen_bit(req, NVME_AEN_BIT_NS_ATTR);  in nvmet_execute_get_log_changed_ns()
245 	nvmet_req_complete(req, status);  in nvmet_execute_get_log_changed_ns()
248 static u32 nvmet_format_ana_group(struct nvmet_req *req, u32 grpid,  in nvmet_format_ana_group()  argument
251 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_format_ana_group()
256 	if (!(req->cmd->get_log_page.lsp & NVME_ANA_LOG_RGO)) {  in nvmet_format_ana_group()
265 	desc->state = req->port->ana_state[grpid];  in nvmet_format_ana_group()
270 static void nvmet_execute_get_log_page_ana(struct nvmet_req *req)  in nvmet_execute_get_log_page_ana()  argument
290 		len = nvmet_format_ana_group(req, grpid, desc);  in nvmet_execute_get_log_page_ana()
291 		status = nvmet_copy_to_sgl(req, offset, desc, len);  in nvmet_execute_get_log_page_ana()
304 	nvmet_clear_aen_bit(req, NVME_AEN_BIT_ANA_CHANGE);  in nvmet_execute_get_log_page_ana()
310 	status = nvmet_copy_to_sgl(req, 0, &hdr, sizeof(hdr));  in nvmet_execute_get_log_page_ana()
312 	nvmet_req_complete(req, status);  in nvmet_execute_get_log_page_ana()
315 static void nvmet_execute_get_log_page(struct nvmet_req *req)  in nvmet_execute_get_log_page()  argument
317 	if (!nvmet_check_transfer_len(req, nvmet_get_log_page_len(req->cmd)))  in nvmet_execute_get_log_page()
320 	switch (req->cmd->get_log_page.lid) {  in nvmet_execute_get_log_page()
322 		return nvmet_execute_get_log_page_error(req);  in nvmet_execute_get_log_page()
324 		return nvmet_execute_get_log_page_smart(req);  in nvmet_execute_get_log_page()
331 		return nvmet_execute_get_log_page_noop(req);  in nvmet_execute_get_log_page()
333 		return nvmet_execute_get_log_changed_ns(req);  in nvmet_execute_get_log_page()
335 		return nvmet_execute_get_log_cmd_effects_ns(req);  in nvmet_execute_get_log_page()
337 		return nvmet_execute_get_log_page_ana(req);  in nvmet_execute_get_log_page()
340 	       req->cmd->get_log_page.lid, req->sq->qid);  in nvmet_execute_get_log_page()
341 	req->error_loc = offsetof(struct nvme_get_log_page_command, lid);  in nvmet_execute_get_log_page()
342 	nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);  in nvmet_execute_get_log_page()
345 static void nvmet_execute_identify_ctrl(struct nvmet_req *req)  in nvmet_execute_identify_ctrl()  argument
347 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_identify_ctrl()
443 	if (req->port->inline_data_size)  in nvmet_execute_identify_ctrl()
454 		cmd_capsule_size += req->port->inline_data_size;  in nvmet_execute_identify_ctrl()
477 	status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));  in nvmet_execute_identify_ctrl()
481 	nvmet_req_complete(req, status);  in nvmet_execute_identify_ctrl()
484 static void nvmet_execute_identify_ns(struct nvmet_req *req)  in nvmet_execute_identify_ns()  argument
489 	if (le32_to_cpu(req->cmd->identify.nsid) == NVME_NSID_ALL) {  in nvmet_execute_identify_ns()
490 		req->error_loc = offsetof(struct nvme_identify, nsid);  in nvmet_execute_identify_ns()
502 	status = nvmet_req_find_ns(req);  in nvmet_execute_identify_ns()
508 	nvmet_ns_revalidate(req->ns);  in nvmet_execute_identify_ns()
515 		cpu_to_le64(req->ns->size >> req->ns->blksize_shift);  in nvmet_execute_identify_ns()
516 	switch (req->port->ana_state[req->ns->anagrpid]) {  in nvmet_execute_identify_ns()
525 	if (req->ns->bdev)  in nvmet_execute_identify_ns()
526 		nvmet_bdev_set_limits(req->ns->bdev, id);  in nvmet_execute_identify_ns()
540 	id->anagrpid = cpu_to_le32(req->ns->anagrpid);  in nvmet_execute_identify_ns()
542 	memcpy(&id->nguid, &req->ns->nguid, sizeof(id->nguid));  in nvmet_execute_identify_ns()
544 	id->lbaf[0].ds = req->ns->blksize_shift;  in nvmet_execute_identify_ns()
546 	if (req->sq->ctrl->pi_support && nvmet_ns_has_pi(req->ns)) {  in nvmet_execute_identify_ns()
551 		id->dps = req->ns->pi_type;  in nvmet_execute_identify_ns()
553 		id->lbaf[0].ms = cpu_to_le16(req->ns->metadata_size);  in nvmet_execute_identify_ns()
556 	if (req->ns->readonly)  in nvmet_execute_identify_ns()
560 		status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));  in nvmet_execute_identify_ns()
564 	nvmet_req_complete(req, status);  in nvmet_execute_identify_ns()
567 static void nvmet_execute_identify_nslist(struct nvmet_req *req)  in nvmet_execute_identify_nslist()  argument
570 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_identify_nslist()
573 	u32 min_nsid = le32_to_cpu(req->cmd->identify.nsid);  in nvmet_execute_identify_nslist()
592 	status = nvmet_copy_to_sgl(req, 0, list, buf_size);  in nvmet_execute_identify_nslist()
596 	nvmet_req_complete(req, status);  in nvmet_execute_identify_nslist()
599 static u16 nvmet_copy_ns_identifier(struct nvmet_req *req, u8 type, u8 len,  in nvmet_copy_ns_identifier()  argument
608 	status = nvmet_copy_to_sgl(req, *off, &desc, sizeof(desc));  in nvmet_copy_ns_identifier()
613 	status = nvmet_copy_to_sgl(req, *off, id, len);  in nvmet_copy_ns_identifier()
621 static void nvmet_execute_identify_desclist(struct nvmet_req *req)  in nvmet_execute_identify_desclist()  argument
626 	status = nvmet_req_find_ns(req);  in nvmet_execute_identify_desclist()
630 	if (memchr_inv(&req->ns->uuid, 0, sizeof(req->ns->uuid))) {  in nvmet_execute_identify_desclist()
631 		status = nvmet_copy_ns_identifier(req, NVME_NIDT_UUID,  in nvmet_execute_identify_desclist()
633 						  &req->ns->uuid, &off);  in nvmet_execute_identify_desclist()
637 	if (memchr_inv(req->ns->nguid, 0, sizeof(req->ns->nguid))) {  in nvmet_execute_identify_desclist()
638 		status = nvmet_copy_ns_identifier(req, NVME_NIDT_NGUID,  in nvmet_execute_identify_desclist()
640 						  &req->ns->nguid, &off);  in nvmet_execute_identify_desclist()
645 	status = nvmet_copy_ns_identifier(req, NVME_NIDT_CSI,  in nvmet_execute_identify_desclist()
647 					  &req->ns->csi, &off);  in nvmet_execute_identify_desclist()
651 	if (sg_zero_buffer(req->sg, req->sg_cnt, NVME_IDENTIFY_DATA_SIZE - off,  in nvmet_execute_identify_desclist()
656 	nvmet_req_complete(req, status);  in nvmet_execute_identify_desclist()
659 static bool nvmet_handle_identify_desclist(struct nvmet_req *req)  in nvmet_handle_identify_desclist()  argument
661 	switch (req->cmd->identify.csi) {  in nvmet_handle_identify_desclist()
663 		nvmet_execute_identify_desclist(req);  in nvmet_handle_identify_desclist()
667 			nvmet_execute_identify_desclist(req);  in nvmet_handle_identify_desclist()
676 static void nvmet_execute_identify(struct nvmet_req *req)  in nvmet_execute_identify()  argument
678 	if (!nvmet_check_transfer_len(req, NVME_IDENTIFY_DATA_SIZE))  in nvmet_execute_identify()
681 	switch (req->cmd->identify.cns) {  in nvmet_execute_identify()
683 		switch (req->cmd->identify.csi) {  in nvmet_execute_identify()
685 			return nvmet_execute_identify_ns(req);  in nvmet_execute_identify()
692 			switch (req->cmd->identify.csi) {  in nvmet_execute_identify()
694 				return nvmet_execute_identify_cns_cs_ns(req);  in nvmet_execute_identify()
701 		switch (req->cmd->identify.csi) {  in nvmet_execute_identify()
703 			return nvmet_execute_identify_ctrl(req);  in nvmet_execute_identify()
708 			switch (req->cmd->identify.csi) {  in nvmet_execute_identify()
710 				return nvmet_execute_identify_cns_cs_ctrl(req);  in nvmet_execute_identify()
717 		switch (req->cmd->identify.csi) {  in nvmet_execute_identify()
719 			return nvmet_execute_identify_nslist(req);  in nvmet_execute_identify()
725 		if (nvmet_handle_identify_desclist(req) == true)  in nvmet_execute_identify()
730 	nvmet_req_cns_error_complete(req);  in nvmet_execute_identify()
740 static void nvmet_execute_abort(struct nvmet_req *req)  in nvmet_execute_abort()  argument
742 	if (!nvmet_check_transfer_len(req, 0))  in nvmet_execute_abort()
744 	nvmet_set_result(req, 1);  in nvmet_execute_abort()
745 	nvmet_req_complete(req, 0);  in nvmet_execute_abort()
748 static u16 nvmet_write_protect_flush_sync(struct nvmet_req *req)  in nvmet_write_protect_flush_sync()  argument
752 	if (req->ns->file)  in nvmet_write_protect_flush_sync()
753 		status = nvmet_file_flush(req);  in nvmet_write_protect_flush_sync()
755 		status = nvmet_bdev_flush(req);  in nvmet_write_protect_flush_sync()
758 		pr_err("write protect flush failed nsid: %u\n", req->ns->nsid);  in nvmet_write_protect_flush_sync()
762 static u16 nvmet_set_feat_write_protect(struct nvmet_req *req)  in nvmet_set_feat_write_protect()  argument
764 	u32 write_protect = le32_to_cpu(req->cmd->common.cdw11);  in nvmet_set_feat_write_protect()
765 	struct nvmet_subsys *subsys = nvmet_req_subsys(req);  in nvmet_set_feat_write_protect()
768 	status = nvmet_req_find_ns(req);  in nvmet_set_feat_write_protect()
775 		req->ns->readonly = true;  in nvmet_set_feat_write_protect()
776 		status = nvmet_write_protect_flush_sync(req);  in nvmet_set_feat_write_protect()
778 			req->ns->readonly = false;  in nvmet_set_feat_write_protect()
781 		req->ns->readonly = false;  in nvmet_set_feat_write_protect()
789 		nvmet_ns_changed(subsys, req->ns->nsid);  in nvmet_set_feat_write_protect()
794 u16 nvmet_set_feat_kato(struct nvmet_req *req)  in nvmet_set_feat_kato()  argument
796 	u32 val32 = le32_to_cpu(req->cmd->common.cdw11);  in nvmet_set_feat_kato()
798 	nvmet_stop_keep_alive_timer(req->sq->ctrl);  in nvmet_set_feat_kato()
799 	req->sq->ctrl->kato = DIV_ROUND_UP(val32, 1000);  in nvmet_set_feat_kato()
800 	nvmet_start_keep_alive_timer(req->sq->ctrl);  in nvmet_set_feat_kato()
802 	nvmet_set_result(req, req->sq->ctrl->kato);  in nvmet_set_feat_kato()
807 u16 nvmet_set_feat_async_event(struct nvmet_req *req, u32 mask)  in nvmet_set_feat_async_event()  argument
809 	u32 val32 = le32_to_cpu(req->cmd->common.cdw11);  in nvmet_set_feat_async_event()
812 		req->error_loc = offsetof(struct nvme_common_command, cdw11);  in nvmet_set_feat_async_event()
816 	WRITE_ONCE(req->sq->ctrl->aen_enabled, val32);  in nvmet_set_feat_async_event()
817 	nvmet_set_result(req, val32);  in nvmet_set_feat_async_event()
822 void nvmet_execute_set_features(struct nvmet_req *req)  in nvmet_execute_set_features()  argument
824 	struct nvmet_subsys *subsys = nvmet_req_subsys(req);  in nvmet_execute_set_features()
825 	u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);  in nvmet_execute_set_features()
826 	u32 cdw11 = le32_to_cpu(req->cmd->common.cdw11);  in nvmet_execute_set_features()
831 	if (!nvmet_check_transfer_len(req, 0))  in nvmet_execute_set_features()
842 		nvmet_set_result(req,  in nvmet_execute_set_features()
846 		status = nvmet_set_feat_kato(req);  in nvmet_execute_set_features()
849 		status = nvmet_set_feat_async_event(req, NVMET_AEN_CFG_ALL);  in nvmet_execute_set_features()
855 		status = nvmet_set_feat_write_protect(req);  in nvmet_execute_set_features()
858 		req->error_loc = offsetof(struct nvme_common_command, cdw10);  in nvmet_execute_set_features()
863 	nvmet_req_complete(req, status);  in nvmet_execute_set_features()
866 static u16 nvmet_get_feat_write_protect(struct nvmet_req *req)  in nvmet_get_feat_write_protect()  argument
868 	struct nvmet_subsys *subsys = nvmet_req_subsys(req);  in nvmet_get_feat_write_protect()
871 	result = nvmet_req_find_ns(req);  in nvmet_get_feat_write_protect()
876 	if (req->ns->readonly == true)  in nvmet_get_feat_write_protect()
880 	nvmet_set_result(req, result);  in nvmet_get_feat_write_protect()
886 void nvmet_get_feat_kato(struct nvmet_req *req)  in nvmet_get_feat_kato()  argument
888 	nvmet_set_result(req, req->sq->ctrl->kato * 1000);  in nvmet_get_feat_kato()
891 void nvmet_get_feat_async_event(struct nvmet_req *req)  in nvmet_get_feat_async_event()  argument
893 	nvmet_set_result(req, READ_ONCE(req->sq->ctrl->aen_enabled));  in nvmet_get_feat_async_event()
896 void nvmet_execute_get_features(struct nvmet_req *req)  in nvmet_execute_get_features()  argument
898 	struct nvmet_subsys *subsys = nvmet_req_subsys(req);  in nvmet_execute_get_features()
899 	u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);  in nvmet_execute_get_features()
902 	if (!nvmet_check_transfer_len(req, nvmet_feat_data_len(req, cdw10)))  in nvmet_execute_get_features()
928 		nvmet_get_feat_async_event(req);  in nvmet_execute_get_features()
931 		nvmet_set_result(req, 1);  in nvmet_execute_get_features()
934 		nvmet_set_result(req,  in nvmet_execute_get_features()
938 		nvmet_get_feat_kato(req);  in nvmet_execute_get_features()
942 		if (!(req->cmd->common.cdw11 & cpu_to_le32(1 << 0))) {  in nvmet_execute_get_features()
943 			req->error_loc =  in nvmet_execute_get_features()
949 		status = nvmet_copy_to_sgl(req, 0, &req->sq->ctrl->hostid,  in nvmet_execute_get_features()
950 				sizeof(req->sq->ctrl->hostid));  in nvmet_execute_get_features()
953 		status = nvmet_get_feat_write_protect(req);  in nvmet_execute_get_features()
956 		req->error_loc =  in nvmet_execute_get_features()
962 	nvmet_req_complete(req, status);  in nvmet_execute_get_features()
965 void nvmet_execute_async_event(struct nvmet_req *req)  in nvmet_execute_async_event()  argument
967 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_async_event()
969 	if (!nvmet_check_transfer_len(req, 0))  in nvmet_execute_async_event()
975 		nvmet_req_complete(req, NVME_SC_ASYNC_LIMIT | NVME_SC_DNR);  in nvmet_execute_async_event()
978 	ctrl->async_event_cmds[ctrl->nr_async_event_cmds++] = req;  in nvmet_execute_async_event()
984 void nvmet_execute_keep_alive(struct nvmet_req *req)  in nvmet_execute_keep_alive()  argument
986 	struct nvmet_ctrl *ctrl = req->sq->ctrl;  in nvmet_execute_keep_alive()
989 	if (!nvmet_check_transfer_len(req, 0))  in nvmet_execute_keep_alive()
1001 	nvmet_req_complete(req, status);  in nvmet_execute_keep_alive()
1004 u16 nvmet_parse_admin_cmd(struct nvmet_req *req)  in nvmet_parse_admin_cmd()  argument
1006 	struct nvme_command *cmd = req->cmd;  in nvmet_parse_admin_cmd()
1010 		return nvmet_parse_fabrics_cmd(req);  in nvmet_parse_admin_cmd()
1011 	if (nvmet_req_subsys(req)->type == NVME_NQN_DISC)  in nvmet_parse_admin_cmd()
1012 		return nvmet_parse_discovery_cmd(req);  in nvmet_parse_admin_cmd()
1014 	ret = nvmet_check_ctrl_status(req);  in nvmet_parse_admin_cmd()
1018 	if (nvmet_is_passthru_req(req))  in nvmet_parse_admin_cmd()
1019 		return nvmet_parse_passthru_admin_cmd(req);  in nvmet_parse_admin_cmd()
1023 		req->execute = nvmet_execute_get_log_page;  in nvmet_parse_admin_cmd()
1026 		req->execute = nvmet_execute_identify;  in nvmet_parse_admin_cmd()
1029 		req->execute = nvmet_execute_abort;  in nvmet_parse_admin_cmd()
1032 		req->execute = nvmet_execute_set_features;  in nvmet_parse_admin_cmd()
1035 		req->execute = nvmet_execute_get_features;  in nvmet_parse_admin_cmd()
1038 		req->execute = nvmet_execute_async_event;  in nvmet_parse_admin_cmd()
1041 		req->execute = nvmet_execute_keep_alive;  in nvmet_parse_admin_cmd()
1044 		return nvmet_report_invalid_opcode(req);  in nvmet_parse_admin_cmd()