diff --git a/include/spdk/nvme_spec.h b/include/spdk/nvme_spec.h
index dd9cac244..f88abf94a 100644
--- a/include/spdk/nvme_spec.h
+++ b/include/spdk/nvme_spec.h
@@ -1525,6 +1525,30 @@ enum spdk_nvme_flush_broadcast {
 
 #define SPDK_NVME_NQN_FIELD_SIZE 256
 
+/** Identify Controller data NVMe over Fabrics-specific fields */
+struct spdk_nvme_cdata_nvmf_specific {
+	/** I/O queue command capsule supported size (16-byte units) */
+	uint32_t	ioccsz;
+
+	/** I/O queue response capsule supported size (16-byte units) */
+	uint32_t	iorcsz;
+
+	/** In-capsule data offset (16-byte units) */
+	uint16_t	icdoff;
+
+	/** Controller attributes */
+	struct {
+		/** Controller model: \ref spdk_nvmf_ctrlr_model */
+		uint8_t	ctrlr_model : 1;
+		uint8_t reserved : 7;
+	} ctrattr;
+
+	/** Maximum SGL block descriptors (0 = no limit) */
+	uint8_t		msdbd;
+
+	uint8_t		reserved[244];
+};
+
 struct __attribute__((packed)) __attribute__((aligned)) spdk_nvme_ctrlr_data {
 	/* bytes 0-255: controller capabilities and features */
 
@@ -1875,29 +1899,7 @@ struct __attribute__((packed)) __attribute__((aligned)) spdk_nvme_ctrlr_data {
 
 	uint8_t			reserved5[768];
 
-	/** NVMe over Fabrics-specific fields */
-	struct {
-		/** I/O queue command capsule supported size (16-byte units) */
-		uint32_t	ioccsz;
-
-		/** I/O queue response capsule supported size (16-byte units) */
-		uint32_t	iorcsz;
-
-		/** In-capsule data offset (16-byte units) */
-		uint16_t	icdoff;
-
-		/** Controller attributes */
-		struct {
-			/** Controller model: \ref spdk_nvmf_ctrlr_model */
-			uint8_t	ctrlr_model : 1;
-			uint8_t reserved : 7;
-		} ctrattr;
-
-		/** Maximum SGL block descriptors (0 = no limit) */
-		uint8_t		msdbd;
-
-		uint8_t		reserved[244];
-	} nvmf_specific;
+	struct spdk_nvme_cdata_nvmf_specific nvmf_specific;
 
 	/* bytes 2048-3071: power state descriptors */
 	struct spdk_nvme_power_state	psd[32];
diff --git a/include/spdk/nvmf_transport.h b/include/spdk/nvmf_transport.h
index acc58a7a8..6f63b341a 100644
--- a/include/spdk/nvmf_transport.h
+++ b/include/spdk/nvmf_transport.h
@@ -169,10 +169,18 @@ struct spdk_nvmf_listener {
 	TAILQ_ENTRY(spdk_nvmf_listener)	link;
 };
 
+/**
+ * A subset of struct spdk_nvme_ctrlr_data that are emulated by a fabrics device.
+ */
+struct spdk_nvmf_ctrlr_data {
+	struct spdk_nvme_cdata_nvmf_specific nvmf_specific;
+};
+
 struct spdk_nvmf_transport {
 	struct spdk_nvmf_tgt			*tgt;
 	const struct spdk_nvmf_transport_ops	*ops;
 	struct spdk_nvmf_transport_opts		opts;
+	struct spdk_nvmf_ctrlr_data		cdata;
 
 	/* A mempool for transport related data transfers */
 	struct spdk_mempool			*data_buf_pool;
@@ -354,6 +362,20 @@ struct spdk_nvmf_registers {
 	uint64_t			acq;
 };
 
+/**
+ * Initialize NVMe-oF controller capabilities.
+ *
+ * After that call transport specific layer can override the settings
+ * but internally must enforce the conditions on when it can be updated
+ * (e.g. no connections active).
+ *
+ * \param opts transport options
+ * \param cdata subset of ctrlr capabilities
+ */
+void
+spdk_nvmf_ctrlr_data_init(struct spdk_nvmf_transport_opts *opts,
+			  struct spdk_nvmf_ctrlr_data *cdata);
+
 const struct spdk_nvmf_registers *spdk_nvmf_ctrlr_get_regs(struct spdk_nvmf_ctrlr *ctrlr);
 
 void spdk_nvmf_request_free_buffers(struct spdk_nvmf_request *req,
diff --git a/lib/nvmf/ctrlr.c b/lib/nvmf/ctrlr.c
index 859c788c6..e13991299 100644
--- a/lib/nvmf/ctrlr.c
+++ b/lib/nvmf/ctrlr.c
@@ -1813,6 +1813,17 @@ nvmf_ctrlr_populate_oacs(struct spdk_nvmf_ctrlr *ctrlr,
 				     NULL;
 }
 
+void
+spdk_nvmf_ctrlr_data_init(struct spdk_nvmf_transport_opts *opts, struct spdk_nvmf_ctrlr_data *cdata)
+{
+	cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
+	cdata->nvmf_specific.ioccsz += opts->in_capsule_data_size / 16;
+	cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16;
+	cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */
+	cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC;
+	cdata->nvmf_specific.msdbd = 1;
+}
+
 int
 spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_ctrlr_data *cdata)
 {
@@ -1867,23 +1878,7 @@ spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_c
 		cdata->vwc.present = 1;
 		cdata->vwc.flush_broadcast = SPDK_NVME_FLUSH_BROADCAST_NOT_SUPPORTED;
 
-		cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
-		cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16;
-		cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */
-		cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC;
-		/* The RDMA transport supports up to SPDK_NVMF_MAX_SGL_ENTRIES descriptors. */
-		if (transport->ops->type == SPDK_NVME_TRANSPORT_RDMA) {
-			cdata->nvmf_specific.msdbd = SPDK_NVMF_MAX_SGL_ENTRIES;
-		} else {
-			cdata->nvmf_specific.msdbd = 1;
-		}
-
-		/* TODO: this should be set by the transport */
-		/* Disable in-capsule data transfer for RDMA controller when dif_insert_or_strip is enabled
-		   since in-capsule data only works with NVME drives that support SGL memory layout */
-		if (!(transport->ops->type == SPDK_NVME_TRANSPORT_RDMA && ctrlr->dif_insert_or_strip)) {
-			cdata->nvmf_specific.ioccsz += transport->opts.in_capsule_data_size / 16;
-		}
+		cdata->nvmf_specific = transport->cdata.nvmf_specific;
 
 		cdata->oncs.dsm = spdk_nvmf_ctrlr_dsm_supported(ctrlr);
 		cdata->oncs.write_zeroes = spdk_nvmf_ctrlr_write_zeroes_supported(ctrlr);
diff --git a/lib/nvmf/fc.c b/lib/nvmf/fc.c
index 5ead74991..97fd21c2e 100644
--- a/lib/nvmf/fc.c
+++ b/lib/nvmf/fc.c
@@ -1889,6 +1889,8 @@ nvmf_fc_create(struct spdk_nvmf_transport_opts *opts)
 	/* initialize the low level FC driver */
 	nvmf_fc_lld_init();
 
+	spdk_nvmf_ctrlr_data_init(opts, &g_nvmf_ftransport->transport.cdata);
+
 	return &g_nvmf_ftransport->transport;
 }
 
diff --git a/lib/nvmf/rdma.c b/lib/nvmf/rdma.c
index ac1def76c..12c29bf93 100644
--- a/lib/nvmf/rdma.c
+++ b/lib/nvmf/rdma.c
@@ -2497,6 +2497,16 @@ spdk_nvmf_rdma_create(struct spdk_nvmf_transport_opts *opts)
 		rtransport->poll_fds[i++].events = POLLIN;
 	}
 
+	spdk_nvmf_ctrlr_data_init(opts, &rtransport->transport.cdata);
+
+	rtransport->transport.cdata.nvmf_specific.msdbd = SPDK_NVMF_MAX_SGL_ENTRIES;
+
+	/* Disable in-capsule data transfer for RDMA controller when dif_insert_or_strip is enabled
+	since in-capsule data only works with NVME drives that support SGL memory layout */
+	if (opts->dif_insert_or_strip) {
+		rtransport->transport.cdata.nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
+	}
+
 	return &rtransport->transport;
 }
 
diff --git a/lib/nvmf/tcp.c b/lib/nvmf/tcp.c
index e66ad15c6..3d4a65e9e 100644
--- a/lib/nvmf/tcp.c
+++ b/lib/nvmf/tcp.c
@@ -514,6 +514,8 @@ spdk_nvmf_tcp_create(struct spdk_nvmf_transport_opts *opts)
 		return NULL;
 	}
 
+	spdk_nvmf_ctrlr_data_init(opts, &ttransport->transport.cdata);
+
 	pthread_mutex_init(&ttransport->lock, NULL);
 
 	return &ttransport->transport;
diff --git a/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c b/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
index 16132cde9..1a444b31c 100644
--- a/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
+++ b/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
@@ -1411,6 +1411,8 @@ test_identify_ctrlr(void)
 	struct spdk_nvme_ctrlr_data cdata = {};
 	uint32_t expected_ioccsz;
 
+	spdk_nvmf_ctrlr_data_init(&transport.opts, &transport.cdata);
+
 	/* Check ioccsz, TCP transport */
 	tops.type = SPDK_NVME_TRANSPORT_TCP;
 	expected_ioccsz = sizeof(struct spdk_nvme_cmd) / 16 + transport.opts.in_capsule_data_size / 16;
@@ -1429,13 +1431,6 @@ test_identify_ctrlr(void)
 	expected_ioccsz = sizeof(struct spdk_nvme_cmd) / 16 + transport.opts.in_capsule_data_size / 16;
 	CU_ASSERT(spdk_nvmf_ctrlr_identify_ctrlr(&ctrlr, &cdata) == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE);
 	CU_ASSERT(cdata.nvmf_specific.ioccsz == expected_ioccsz);
-
-	/* Check ioccsz, RDMA transport with dif_insert_or_strip */
-	tops.type = SPDK_NVME_TRANSPORT_RDMA;
-	ctrlr.dif_insert_or_strip = true;
-	expected_ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
-	CU_ASSERT(spdk_nvmf_ctrlr_identify_ctrlr(&ctrlr, &cdata) == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE);
-	CU_ASSERT(cdata.nvmf_specific.ioccsz == expected_ioccsz);
 }
 
 static int
diff --git a/test/unit/lib/nvmf/rdma.c/rdma_ut.c b/test/unit/lib/nvmf/rdma.c/rdma_ut.c
index e954e7966..3cddc16d1 100644
--- a/test/unit/lib/nvmf/rdma.c/rdma_ut.c
+++ b/test/unit/lib/nvmf/rdma.c/rdma_ut.c
@@ -73,6 +73,8 @@ DEFINE_STUB_V(spdk_trace_register_description, (const char *name,
 DEFINE_STUB_V(_spdk_trace_record, (uint64_t tsc, uint16_t tpoint_id, uint16_t poller_id,
 				   uint32_t size, uint64_t object_id, uint64_t arg1));
 
+DEFINE_STUB_V(spdk_nvmf_ctrlr_data_init, (struct spdk_nvmf_transport_opts *opts,
+		struct spdk_nvmf_ctrlr_data *cdata));
 DEFINE_STUB_V(spdk_nvmf_request_exec, (struct spdk_nvmf_request *req));
 DEFINE_STUB(spdk_nvme_transport_id_compare, int, (const struct spdk_nvme_transport_id *trid1,
 		const struct spdk_nvme_transport_id *trid2), 0);