From a00efdbfda012300a25ffc6848a77a7a7df379b1 Mon Sep 17 00:00:00 2001
From: Jacek Kalwas <jacek.kalwas@intel.com>
Date: Mon, 17 Feb 2020 18:23:26 +0100
Subject: [PATCH] nvmf: add util to get subsystem from ctrlr

Signed-off-by: Jacek Kalwas <jacek.kalwas@intel.com>
Change-Id: I28e51e1ca9f1334bf267c08b47b8fb6b961a0aa0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/919
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
---
 include/spdk/nvmf_transport.h | 10 ++++++++++
 lib/nvmf/ctrlr.c              |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/include/spdk/nvmf_transport.h b/include/spdk/nvmf_transport.h
index a6ca0407b..a3541d1e0 100644
--- a/include/spdk/nvmf_transport.h
+++ b/include/spdk/nvmf_transport.h
@@ -341,6 +341,16 @@ void spdk_nvmf_request_exec_fabrics(struct spdk_nvmf_request *req);
 int spdk_nvmf_request_free(struct spdk_nvmf_request *req);
 int spdk_nvmf_request_complete(struct spdk_nvmf_request *req);
 
+/**
+ * Get the NVMe-oF subsystem associated with this controller.
+ *
+ * \param ctrlr The NVMe-oF controller
+ *
+ * \return The NVMe-oF subsystem
+ */
+struct spdk_nvmf_subsystem *
+spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr);
+
 static inline enum spdk_nvme_data_transfer
 spdk_nvmf_req_get_xfer(struct spdk_nvmf_request *req) {
 	enum spdk_nvme_data_transfer xfer;
diff --git a/lib/nvmf/ctrlr.c b/lib/nvmf/ctrlr.c
index 53c1de852..375870a31 100644
--- a/lib/nvmf/ctrlr.c
+++ b/lib/nvmf/ctrlr.c
@@ -3018,3 +3018,8 @@ void spdk_nvmf_request_get_data(struct spdk_nvmf_request *req, void **data, uint
 	*data = req->data;
 	*length = req->length;
 }
+
+struct spdk_nvmf_subsystem *spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr)
+{
+	return ctrlr->subsys;
+}