Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 200 insertions, 0 deletions

diff --git a/src/spdk/lib/nvmf/transport.h b/src/spdk/lib/nvmf/transport.h
new file mode 100644
index 00000000..1329a80c
--- /dev/null
+++ b/src/spdk/lib/nvmf/transport.h
@@ -0,0 +1,200 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SPDK_NVMF_TRANSPORT_H
+#define SPDK_NVMF_TRANSPORT_H
+
+#include "spdk/stdinc.h"
+
+#include "spdk/nvme.h"
+#include "spdk/nvmf.h"
+
+struct spdk_nvmf_transport {
+	struct spdk_nvmf_tgt			*tgt;
+	const struct spdk_nvmf_transport_ops	*ops;
+	struct spdk_nvmf_transport_opts		opts;
+
+	TAILQ_ENTRY(spdk_nvmf_transport)	link;
+};
+
+struct spdk_nvmf_transport_ops {
+	/**
+	 * Transport type
+	 */
+	enum spdk_nvme_transport_type type;
+
+	/**
+	 * Initialize transport options to default value
+	 */
+	void (*opts_init)(struct spdk_nvmf_transport_opts *opts);
+
+	/**
+	 * Create a transport for the given transport opts
+	 */
+	struct spdk_nvmf_transport *(*create)(struct spdk_nvmf_transport_opts *opts);
+
+	/**
+	 * Destroy the transport
+	 */
+	int (*destroy)(struct spdk_nvmf_transport *transport);
+
+	/**
+	  * Instruct the transport to accept new connections at the address
+	  * provided. This may be called multiple times.
+	  */
+	int (*listen)(struct spdk_nvmf_transport *transport,
+		      const struct spdk_nvme_transport_id *trid);
+
+	/**
+	  * Stop accepting new connections at the given address.
+	  */
+	int (*stop_listen)(struct spdk_nvmf_transport *transport,
+			   const struct spdk_nvme_transport_id *trid);
+
+	/**
+	 * Check for new connections on the transport.
+	 */
+	void (*accept)(struct spdk_nvmf_transport *transport, new_qpair_fn cb_fn);
+
+	/**
+	 * Fill out a discovery log entry for a specific listen address.
+	 */
+	void (*listener_discover)(struct spdk_nvmf_transport *transport,
+				  struct spdk_nvme_transport_id *trid,
+				  struct spdk_nvmf_discovery_log_page_entry *entry);
+
+	/**
+	 * Create a new poll group
+	 */
+	struct spdk_nvmf_transport_poll_group *(*poll_group_create)(struct spdk_nvmf_transport *transport);
+
+	/**
+	 * Destroy a poll group
+	 */
+	void (*poll_group_destroy)(struct spdk_nvmf_transport_poll_group *group);
+
+	/**
+	 * Add a qpair to a poll group
+	 */
+	int (*poll_group_add)(struct spdk_nvmf_transport_poll_group *group,
+			      struct spdk_nvmf_qpair *qpair);
+
+	/**
+	 * Poll the group to process I/O
+	 */
+	int (*poll_group_poll)(struct spdk_nvmf_transport_poll_group *group);
+
+	/*
+	 * Free the request without sending a response
+	 * to the originator. Release memory tied to this request.
+	 */
+	int (*req_free)(struct spdk_nvmf_request *req);
+
+	/*
+	 * Signal request completion, which sends a response
+	 * to the originator.
+	 */
+	int (*req_complete)(struct spdk_nvmf_request *req);
+
+	/*
+	 * Deinitialize a connection.
+	 */
+	void (*qpair_fini)(struct spdk_nvmf_qpair *qpair);
+
+	/*
+	 * True if the qpair has no pending IO.
+	 */
+	bool (*qpair_is_idle)(struct spdk_nvmf_qpair *qpair);
+
+	/*
+	 * Get the peer transport ID for the queue pair.
+	 */
+	int (*qpair_get_peer_trid)(struct spdk_nvmf_qpair *qpair,
+				   struct spdk_nvme_transport_id *trid);
+
+	/*
+	 * Get the local transport ID for the queue pair.
+	 */
+	int (*qpair_get_local_trid)(struct spdk_nvmf_qpair *qpair,
+				    struct spdk_nvme_transport_id *trid);
+
+	/*
+	 * Get the listener transport ID that accepted this qpair originally.
+	 */
+	int (*qpair_get_listen_trid)(struct spdk_nvmf_qpair *qpair,
+				     struct spdk_nvme_transport_id *trid);
+};
+
+
+int spdk_nvmf_transport_stop_listen(struct spdk_nvmf_transport *transport,
+				    const struct spdk_nvme_transport_id *trid);
+
+void spdk_nvmf_transport_accept(struct spdk_nvmf_transport *transport, new_qpair_fn cb_fn);
+
+void spdk_nvmf_transport_listener_discover(struct spdk_nvmf_transport *transport,
+		struct spdk_nvme_transport_id *trid,
+		struct spdk_nvmf_discovery_log_page_entry *entry);
+
+struct spdk_nvmf_transport_poll_group *spdk_nvmf_transport_poll_group_create(
+	struct spdk_nvmf_transport *transport);
+
+void spdk_nvmf_transport_poll_group_destroy(struct spdk_nvmf_transport_poll_group *group);
+
+int spdk_nvmf_transport_poll_group_add(struct spdk_nvmf_transport_poll_group *group,
+				       struct spdk_nvmf_qpair *qpair);
+
+int spdk_nvmf_transport_poll_group_poll(struct spdk_nvmf_transport_poll_group *group);
+
+int spdk_nvmf_transport_req_free(struct spdk_nvmf_request *req);
+
+int spdk_nvmf_transport_req_complete(struct spdk_nvmf_request *req);
+
+void spdk_nvmf_transport_qpair_fini(struct spdk_nvmf_qpair *qpair);
+
+bool spdk_nvmf_transport_qpair_is_idle(struct spdk_nvmf_qpair *qpair);
+
+int spdk_nvmf_transport_qpair_get_peer_trid(struct spdk_nvmf_qpair *qpair,
+		struct spdk_nvme_transport_id *trid);
+
+int spdk_nvmf_transport_qpair_get_local_trid(struct spdk_nvmf_qpair *qpair,
+		struct spdk_nvme_transport_id *trid);
+
+int spdk_nvmf_transport_qpair_get_listen_trid(struct spdk_nvmf_qpair *qpair,
+		struct spdk_nvme_transport_id *trid);
+
+bool spdk_nvmf_transport_opts_init(enum spdk_nvme_transport_type type,
+				   struct spdk_nvmf_transport_opts *opts);
+
+extern const struct spdk_nvmf_transport_ops spdk_nvmf_transport_rdma;
+
+#endif /* SPDK_NVMF_TRANSPORT_H */