133 	if (ctrl->opts->mask & NVMF_OPT_TRADDR)  in nvmf_get_address()
134 		len += scnprintf(buf, size, "traddr=%s", ctrl->opts->traddr);  in nvmf_get_address()
135 	if (ctrl->opts->mask & NVMF_OPT_TRSVCID)  in nvmf_get_address()
137 				(len) ? "," : "", ctrl->opts->trsvcid);  in nvmf_get_address()
138 	if (ctrl->opts->mask & NVMF_OPT_HOST_TRADDR)  in nvmf_get_address()
140 				(len) ? "," : "", ctrl->opts->host_traddr);  in nvmf_get_address()
141 	if (ctrl->opts->mask & NVMF_OPT_HOST_IFACE)  in nvmf_get_address()
143 				(len) ? "," : "", ctrl->opts->host_iface);  in nvmf_get_address()
387 	uuid_copy(&data->hostid, &ctrl->opts->host->id);  in nvmf_connect_data_prep()
389 	strncpy(data->subsysnqn, ctrl->opts->subsysnqn, NVMF_NQN_SIZE);  in nvmf_connect_data_prep()
390 	strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE);  in nvmf_connect_data_prep()
413 	if (ctrl->opts->disable_sqflow)  in nvmf_connect_cmd_prep()
563 	if (ctrl->opts->max_reconnects == -1 ||  in nvmf_should_reconnect()
564 	    ctrl->nr_reconnects < ctrl->opts->max_reconnects)  in nvmf_should_reconnect()
611 		struct nvmf_ctrl_options *opts)  in nvmf_lookup_transport()  argument
618 		if (strcmp(ops->name, opts->transport) == 0)  in nvmf_lookup_transport()
653 static int nvmf_parse_options(struct nvmf_ctrl_options *opts,  in nvmf_parse_options()  argument
665 	opts->queue_size = NVMF_DEF_QUEUE_SIZE;  in nvmf_parse_options()
666 	opts->nr_io_queues = num_online_cpus();  in nvmf_parse_options()
667 	opts->reconnect_delay = NVMF_DEF_RECONNECT_DELAY;  in nvmf_parse_options()
668 	opts->kato = 0;  in nvmf_parse_options()
669 	opts->duplicate_connect = false;  in nvmf_parse_options()
670 	opts->fast_io_fail_tmo = NVMF_DEF_FAIL_FAST_TMO;  in nvmf_parse_options()
671 	opts->hdr_digest = false;  in nvmf_parse_options()
672 	opts->data_digest = false;  in nvmf_parse_options()
673 	opts->tos = -1; /* < 0 == use transport default */  in nvmf_parse_options()
688 		opts->mask |= token;  in nvmf_parse_options()
696 			kfree(opts->transport);  in nvmf_parse_options()
697 			opts->transport = p;  in nvmf_parse_options()
705 			kfree(opts->subsysnqn);  in nvmf_parse_options()
706 			opts->subsysnqn = p;  in nvmf_parse_options()
707 			nqnlen = strlen(opts->subsysnqn);  in nvmf_parse_options()
710 					opts->subsysnqn, NVMF_NQN_SIZE);  in nvmf_parse_options()
714 			opts->discovery_nqn =  in nvmf_parse_options()
715 				!(strcmp(opts->subsysnqn,  in nvmf_parse_options()
724 			kfree(opts->traddr);  in nvmf_parse_options()
725 			opts->traddr = p;  in nvmf_parse_options()
733 			kfree(opts->trsvcid);  in nvmf_parse_options()
734 			opts->trsvcid = p;  in nvmf_parse_options()
747 			opts->queue_size = token;  in nvmf_parse_options()
759 			if (opts->discovery_nqn) {  in nvmf_parse_options()
764 			opts->nr_io_queues = min_t(unsigned int,  in nvmf_parse_options()
777 			} else if (token == 0 && !opts->discovery_nqn) {  in nvmf_parse_options()
781 			opts->kato = token;  in nvmf_parse_options()
805 			opts->fast_io_fail_tmo = token;  in nvmf_parse_options()
808 			if (opts->host) {  in nvmf_parse_options()
810 				       opts->host->nqn);  in nvmf_parse_options()
840 			opts->reconnect_delay = token;  in nvmf_parse_options()
848 			kfree(opts->host_traddr);  in nvmf_parse_options()
849 			opts->host_traddr = p;  in nvmf_parse_options()
857 			kfree(opts->host_iface);  in nvmf_parse_options()
858 			opts->host_iface = p;  in nvmf_parse_options()
876 			opts->duplicate_connect = true;  in nvmf_parse_options()
879 			opts->disable_sqflow = true;  in nvmf_parse_options()
882 			opts->hdr_digest = true;  in nvmf_parse_options()
885 			opts->data_digest = true;  in nvmf_parse_options()
897 			opts->nr_write_queues = token;  in nvmf_parse_options()
909 			opts->nr_poll_queues = token;  in nvmf_parse_options()
925 			opts->tos = token;  in nvmf_parse_options()
928 			opts->discovery_nqn = true;  in nvmf_parse_options()
941 			kfree(opts->dhchap_secret);  in nvmf_parse_options()
942 			opts->dhchap_secret = p;  in nvmf_parse_options()
955 			kfree(opts->dhchap_ctrl_secret);  in nvmf_parse_options()
956 			opts->dhchap_ctrl_secret = p;  in nvmf_parse_options()
966 	if (opts->discovery_nqn) {  in nvmf_parse_options()
967 		opts->nr_io_queues = 0;  in nvmf_parse_options()
968 		opts->nr_write_queues = 0;  in nvmf_parse_options()
969 		opts->nr_poll_queues = 0;  in nvmf_parse_options()
970 		opts->duplicate_connect = true;  in nvmf_parse_options()
972 		if (!opts->kato)  in nvmf_parse_options()
973 			opts->kato = NVME_DEFAULT_KATO;  in nvmf_parse_options()
976 		opts->max_reconnects = -1;  in nvmf_parse_options()
978 		opts->max_reconnects = DIV_ROUND_UP(ctrl_loss_tmo,  in nvmf_parse_options()
979 						opts->reconnect_delay);  in nvmf_parse_options()
980 		if (ctrl_loss_tmo < opts->fast_io_fail_tmo)  in nvmf_parse_options()
982 				opts->fast_io_fail_tmo, ctrl_loss_tmo);  in nvmf_parse_options()
985 	opts->host = nvmf_host_add(hostnqn, &hostid);  in nvmf_parse_options()
986 	if (IS_ERR(opts->host)) {  in nvmf_parse_options()
987 		ret = PTR_ERR(opts->host);  in nvmf_parse_options()
988 		opts->host = NULL;  in nvmf_parse_options()
997 void nvmf_set_io_queues(struct nvmf_ctrl_options *opts, u32 nr_io_queues,  in nvmf_set_io_queues()  argument
1000 	if (opts->nr_write_queues && opts->nr_io_queues < nr_io_queues) {  in nvmf_set_io_queues()
1006 		io_queues[HCTX_TYPE_READ] = opts->nr_io_queues;  in nvmf_set_io_queues()
1009 			min(opts->nr_write_queues, nr_io_queues);  in nvmf_set_io_queues()
1018 			min(opts->nr_io_queues, nr_io_queues);  in nvmf_set_io_queues()
1022 	if (opts->nr_poll_queues && nr_io_queues) {  in nvmf_set_io_queues()
1025 			min(opts->nr_poll_queues, nr_io_queues);  in nvmf_set_io_queues()
1033 	struct nvmf_ctrl_options *opts = ctrl->opts;  in nvmf_map_queues()  local
1035 	if (opts->nr_write_queues && io_queues[HCTX_TYPE_READ]) {  in nvmf_map_queues()
1056 	if (opts->nr_poll_queues && io_queues[HCTX_TYPE_POLL]) {  in nvmf_map_queues()
1073 static int nvmf_check_required_opts(struct nvmf_ctrl_options *opts,  in nvmf_check_required_opts()  argument
1076 	if ((opts->mask & required_opts) != required_opts) {  in nvmf_check_required_opts()
1081 			    !(opt_tokens[i].token & opts->mask)) {  in nvmf_check_required_opts()
1094 		struct nvmf_ctrl_options *opts)  in nvmf_ip_options_match()  argument
1096 	if (!nvmf_ctlr_matches_baseopts(ctrl, opts) ||  in nvmf_ip_options_match()
1097 	    strcmp(opts->traddr, ctrl->opts->traddr) ||  in nvmf_ip_options_match()
1098 	    strcmp(opts->trsvcid, ctrl->opts->trsvcid))  in nvmf_ip_options_match()
1114 	if ((opts->mask & NVMF_OPT_HOST_TRADDR) &&  in nvmf_ip_options_match()
1115 	    (ctrl->opts->mask & NVMF_OPT_HOST_TRADDR)) {  in nvmf_ip_options_match()
1116 		if (strcmp(opts->host_traddr, ctrl->opts->host_traddr))  in nvmf_ip_options_match()
1118 	} else if ((opts->mask & NVMF_OPT_HOST_TRADDR) ||  in nvmf_ip_options_match()
1119 		   (ctrl->opts->mask & NVMF_OPT_HOST_TRADDR)) {  in nvmf_ip_options_match()
1123 	if ((opts->mask & NVMF_OPT_HOST_IFACE) &&  in nvmf_ip_options_match()
1124 	    (ctrl->opts->mask & NVMF_OPT_HOST_IFACE)) {  in nvmf_ip_options_match()
1125 		if (strcmp(opts->host_iface, ctrl->opts->host_iface))  in nvmf_ip_options_match()
1127 	} else if ((opts->mask & NVMF_OPT_HOST_IFACE) ||  in nvmf_ip_options_match()
1128 		   (ctrl->opts->mask & NVMF_OPT_HOST_IFACE)) {  in nvmf_ip_options_match()
1136 static int nvmf_check_allowed_opts(struct nvmf_ctrl_options *opts,  in nvmf_check_allowed_opts()  argument
1139 	if (opts->mask & ~allowed_opts) {  in nvmf_check_allowed_opts()
1143 			if ((opt_tokens[i].token & opts->mask) &&  in nvmf_check_allowed_opts()
1156 void nvmf_free_options(struct nvmf_ctrl_options *opts)  in nvmf_free_options()  argument
1158 	nvmf_host_put(opts->host);  in nvmf_free_options()
1159 	kfree(opts->transport);  in nvmf_free_options()
1160 	kfree(opts->traddr);  in nvmf_free_options()
1161 	kfree(opts->trsvcid);  in nvmf_free_options()
1162 	kfree(opts->subsysnqn);  in nvmf_free_options()
1163 	kfree(opts->host_traddr);  in nvmf_free_options()
1164 	kfree(opts->host_iface);  in nvmf_free_options()
1165 	kfree(opts->dhchap_secret);  in nvmf_free_options()
1166 	kfree(opts->dhchap_ctrl_secret);  in nvmf_free_options()
1167 	kfree(opts);  in nvmf_free_options()
1182 	struct nvmf_ctrl_options *opts;  in nvmf_create_ctrl()  local
1187 	opts = kzalloc(sizeof(*opts), GFP_KERNEL);  in nvmf_create_ctrl()
1188 	if (!opts)  in nvmf_create_ctrl()
1191 	ret = nvmf_parse_options(opts, buf);  in nvmf_create_ctrl()
1196 	request_module("nvme-%s", opts->transport);  in nvmf_create_ctrl()
1203 	ret = nvmf_check_required_opts(opts, NVMF_REQUIRED_OPTS);  in nvmf_create_ctrl()
1206 	opts->mask &= ~NVMF_REQUIRED_OPTS;  in nvmf_create_ctrl()
1209 	ops = nvmf_lookup_transport(opts);  in nvmf_create_ctrl()
1212 			opts->transport);  in nvmf_create_ctrl()
1223 	ret = nvmf_check_required_opts(opts, ops->required_opts);  in nvmf_create_ctrl()
1226 	ret = nvmf_check_allowed_opts(opts, NVMF_ALLOWED_OPTS |  in nvmf_create_ctrl()
1231 	ctrl = ops->create_ctrl(dev, opts);  in nvmf_create_ctrl()
1246 	nvmf_free_options(opts);  in nvmf_create_ctrl()