libnvme: drop fabric_args

Remove the final references to 'fabric_args' and remove the structure.

Signed-off-by; Hannes Reinecke <[email protected]>

Author: hreinecke

libnvme/src/nvme/fabrics.c

@@ -2539,11 +2539,10 @@ static bool validate_uri(struct nvme_global_ctx *ctx,
 static int nbft_connect(struct nvme_global_ctx *ctx,
 		struct nvmf_context *fctx, struct nvme_host *h,
 		struct nvmf_disc_log_entry *e,
-		struct nbft_info_subsystem_ns *ss, struct fabric_args *trcfg,
+		struct nbft_info_subsystem_ns *ss,
 		struct nvme_fabrics_config *cfg)
 {
 	nvme_ctrl_t c;
-	struct nvmf_context next_fctx = *fctx;
 	int saved_log_level;
 	bool saved_log_tstamp;
 	bool saved_log_pid;
@@ -2553,20 +2552,13 @@ static int nbft_connect(struct nvme_global_ctx *ctx,
 		&saved_log_pid);
 
 	/* Already connected ? */
-	next_fctx.subsysnqn = trcfg->subsysnqn;
-	next_fctx.transport = trcfg->transport;
-	next_fctx.traddr = trcfg->traddr;
-	next_fctx.trsvcid = trcfg->trsvcid;
-	next_fctx.host_traddr = trcfg->host_traddr;
-	next_fctx.host_iface = trcfg->host_iface;
-
-	c = lookup_ctrl(h, &next_fctx);
+	c = lookup_ctrl(h, fctx);
 	if (c && nvme_ctrl_get_name(c))
 		return 0;
 
-	ret = nvme_create_ctrl(ctx, next_fctx.subsysnqn, next_fctx.transport,
-			     next_fctx.traddr, next_fctx.host_traddr,
-			     next_fctx.host_iface, next_fctx.trsvcid, &c);
+	ret = nvme_create_ctrl(ctx, fctx->subsysnqn, fctx->transport,
+			     fctx->traddr, fctx->host_traddr,
+			     fctx->host_iface, fctx->trsvcid, &c);
 	if (ret)
 		return ret;
 
@@ -2604,16 +2596,16 @@ static int nbft_connect(struct nvme_global_ctx *ctx,
 		return ret;
 	}
 
-	if (next_fctx.connected)
-		next_fctx.connected(&next_fctx, c, next_fctx.user_data);
+	if (fctx->connected)
+		fctx->connected(fctx, c, fctx->user_data);
 
 	return 0;
 }
 
 static int nbft_discovery(struct nvme_global_ctx *ctx,
 		struct nvmf_context *fctx, struct nbft_info_discovery *dd,
 		struct nvme_host *h, struct nvme_ctrl *c,
-		struct nvme_fabrics_config *defcfg, struct fabric_args *deftrcfg)
+		struct nvme_fabrics_config *defcfg)
 {
 	struct nvmf_discovery_log *log = NULL;
 	int ret;
@@ -2647,15 +2639,6 @@ static int nbft_discovery(struct nvme_global_ctx *ctx,
 		next_fctx.traddr = e->traddr;
 		next_fctx.trsvcid = e->trsvcid;
 
-		struct fabric_args trcfg = {
-			.subsysnqn	= e->subnqn,
-			.transport	= nvmf_trtype_str(e->trtype),
-			.traddr		= e->traddr,
-			.host_traddr	= fctx->host_traddr,
-			.host_iface	= fctx->host_iface,
-			.trsvcid	= e->trsvcid,
-		};
-
 		if (e->subtype == NVME_NQN_CURR)
 			continue;
 
@@ -2677,27 +2660,25 @@ static int nbft_discovery(struct nvme_global_ctx *ctx,
 				defcfg, NULL, &child);
 			if (ret)
 				continue;
-			nbft_discovery(ctx, &next_fctx, dd, h, child,
-				       defcfg, &trcfg);
+			nbft_discovery(ctx, &next_fctx, dd, h, child, defcfg);
 			nvme_disconnect_ctrl(child);
 			nvme_free_ctrl(child);
 		} else {
-			ret = nbft_connect(ctx, &next_fctx, h, e, NULL,
-				&trcfg, defcfg);
+			ret = nbft_connect(ctx, &next_fctx, h, e, NULL, defcfg);
 
 			/*
 			 * With TCP/DHCP, it can happen that the OS
 			 * obtains a different local IP address than the
 			 * firmware had. Retry without host_traddr.
 			 */
 			if (ret == -ENVME_CONNECT_ADDRNOTAVAIL &&
-			    !strcmp(trcfg.transport, "tcp") &&
+			    !strcmp(next_fctx.transport, "tcp") &&
 			    strlen(dd->hfi->tcp_info.dhcp_server_ipaddr) > 0) {
-				const char *htradr = trcfg.host_traddr;
+				const char *htradr = next_fctx.host_traddr;
 
-				trcfg.host_traddr = NULL;
+				next_fctx.host_traddr = NULL;
 				ret = nbft_connect(ctx, &next_fctx, h, e, NULL,
-					&trcfg, defcfg);
+					defcfg);
 
 				if (ret == 0)
 					nvme_msg(ctx, LOG_INFO,
@@ -2807,17 +2788,8 @@ int nvmf_discovery_nbft(struct nvme_global_ctx *ctx,
 				nfctx.trsvcid = (*ss)->trsvcid;
 				nfctx.host_iface = NULL;
 
-				struct fabric_args trcfg = {
-					.subsysnqn	= (*ss)->subsys_nqn,
-					.transport	= (*ss)->transport,
-					.traddr		= (*ss)->traddr,
-					.trsvcid	= (*ss)->trsvcid,
-					.host_traddr	= host_traddr,
-					.host_iface	= NULL,
-				};
-
 				rr = nbft_connect(ctx, &nfctx, h, NULL,
-					*ss, &trcfg, fctx->cfg);
+					*ss, fctx->cfg);
 
 				/*
 				 * With TCP/DHCP, it can happen that the OS
@@ -2827,11 +2799,10 @@ int nvmf_discovery_nbft(struct nvme_global_ctx *ctx,
 				if (rr == -ENVME_CONNECT_ADDRNOTAVAIL &&
 				    !strcmp(nfctx.transport, "tcp") &&
 				    strlen(hfi->tcp_info.dhcp_server_ipaddr) > 0) {
-					trcfg.host_traddr = NULL;
 					nfctx.host_traddr = NULL;
 
 					rr = nbft_connect(ctx, &nfctx, h, NULL,
-						*ss, &trcfg, fctx->cfg);
+						*ss, fctx->cfg);
 
 					if (rr == 0)
 						nvme_msg(ctx, LOG_INFO,
@@ -2899,15 +2870,6 @@ int nvmf_discovery_nbft(struct nvme_global_ctx *ctx,
 					strdup(nvmf_get_default_trsvcid(
 						uri->protocol, true));
 
-			struct fabric_args trcfg = {
-				.subsysnqn	= NVME_DISC_SUBSYS_NAME,
-				.transport	= uri->protocol,
-				.traddr		= uri->host,
-				.trsvcid	= trsvcid,
-				.host_traddr	= host_traddr,
-				.host_iface	= NULL,
-			};
-
 			nfctx.subsysnqn = NVME_DISC_SUBSYS_NAME;
 			nfctx.transport =  uri->protocol;
 			nfctx.traddr = uri->host;
@@ -2926,7 +2888,6 @@ int nvmf_discovery_nbft(struct nvme_global_ctx *ctx,
 				if (ret == -ENVME_CONNECT_ADDRNOTAVAIL &&
 				    !strcmp(nfctx.transport, "tcp") &&
 				    strlen(hfi->tcp_info.dhcp_server_ipaddr) > 0) {
-					trcfg.host_traddr = NULL;
 					nfctx.traddr = NULL;
 					ret = nvmf_create_discovery_ctrl(ctx,
 						&nfctx, h, fctx->cfg, &c);
@@ -2941,8 +2902,7 @@ int nvmf_discovery_nbft(struct nvme_global_ctx *ctx,
 				goto out_free;
 			}
 
-			rr = nbft_discovery(ctx, &nfctx, *dd, h, c, fctx->cfg,
-				&trcfg);
+			rr = nbft_discovery(ctx, &nfctx, *dd, h, c, fctx->cfg);
 			if (!persistent)
 				nvme_disconnect_ctrl(c);
 			nvme_free_ctrl(c);

libnvme/src/nvme/private.h

@@ -405,15 +405,6 @@ struct nvmf_context {
 	void *user_data;
 };
 
-struct fabric_args {
-	const char *subsysnqn;
-	const char *transport;
-	const char *traddr;
-	const char *trsvcid;
-	const char *host_traddr;
-	const char *host_iface;
-};
-
 int nvme_set_attr(const char *dir, const char *attr, const char *value);
 
 int json_read_config(struct nvme_global_ctx *ctx, const char *config_file);