perf: Add NSID in perf output information

Currently an option is implemented to monitor a correlation between the
core and namespace.

Previously:
==================================================================
Device Information
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 from core  0:
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 from core  0:
==================================================================

Now:
========================================================================
Device Information
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 NSID 1 from core 0:
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 NSID 2 from core 0:
========================================================================

Signed-off-by: Alla Kiseleva <[email protected]>

examples/nvme/perf/perf.c

@@ -632,27 +632,42 @@ static const struct ns_fn_table nvme_fn_table = {
 	.cleanup_ns_worker_ctx	= nvme_cleanup_ns_worker_ctx,
 };
 
-static void
+static int
 build_nvme_name(char *name, size_t length, struct spdk_nvme_ctrlr *ctrlr)
 {
 	const struct spdk_nvme_transport_id *trid;
+	int res = 0;
 
 	trid = spdk_nvme_ctrlr_get_transport_id(ctrlr);
 
 	switch (trid->trtype) {
 	case SPDK_NVME_TRANSPORT_PCIE:
-		snprintf(name, length, "PCIE (%s)", trid->traddr);
+		res = snprintf(name, length, "PCIE (%s)", trid->traddr);
 		break;
 	case SPDK_NVME_TRANSPORT_RDMA:
-		snprintf(name, length, "RDMA (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
+		res = snprintf(name, length, "RDMA (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
 		break;
 	case SPDK_NVME_TRANSPORT_TCP:
-		snprintf(name, length, "TCP  (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
+		res = snprintf(name, length, "TCP  (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
 		break;
+
 	default:
 		fprintf(stderr, "Unknown transport type %d\n", trid->trtype);
 		break;
 	}
+	return res;
+}
+
+static void
+build_nvme_ns_name(char *name, size_t length, struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid)
+{
+	int res = 0;
+
+	res = build_nvme_name(name, length, ctrlr);
+	if (res > 0) {
+		snprintf(name + res, length - res, " NSID %u", nsid);
+	}
+
 }
 
 static void
@@ -746,7 +761,7 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
 		g_max_io_size_blocks = entry->io_size_blocks;
 	}
 
-	build_nvme_name(entry->name, sizeof(entry->name), ctrlr);
+	build_nvme_ns_name(entry->name, sizeof(entry->name), ctrlr, spdk_nvme_ns_get_id(ns));
 
 	g_num_namespaces++;
 	entry->next = g_namespaces;