Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 112 insertions, 0 deletions

diff --git a/src/spdk/lib/bdev/nvme/bdev_nvme.h b/src/spdk/lib/bdev/nvme/bdev_nvme.h
new file mode 100644
index 00000000..b8c458e8
--- /dev/null
+++ b/src/spdk/lib/bdev/nvme/bdev_nvme.h
@@ -0,0 +1,112 @@
+/*-
+ *   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_BDEV_NVME_H
+#define SPDK_BDEV_NVME_H
+
+#include "spdk/stdinc.h"
+
+#include "spdk/queue.h"
+#include "spdk/nvme.h"
+#include "spdk/bdev_module.h"
+
+#define NVME_MAX_CONTROLLERS 1024
+
+enum spdk_bdev_timeout_action {
+	SPDK_BDEV_NVME_TIMEOUT_ACTION_NONE = 0,
+	SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET,
+	SPDK_BDEV_NVME_TIMEOUT_ACTION_ABORT,
+};
+
+struct spdk_bdev_nvme_opts {
+	enum spdk_bdev_timeout_action action_on_timeout;
+	uint64_t timeout_us;
+	uint32_t retry_count;
+	uint64_t nvme_adminq_poll_period_us;
+};
+
+struct nvme_ctrlr {
+	/**
+	 * points to pinned, physically contiguous memory region;
+	 * contains 4KB IDENTIFY structure for controller which is
+	 *  target for CONTROLLER IDENTIFY command during initialization
+	 */
+	struct spdk_nvme_ctrlr		*ctrlr;
+	struct spdk_nvme_transport_id	trid;
+	char				*name;
+	int				ref;
+	uint32_t			num_ns;
+	/** Array of bdevs indexed by nsid - 1 */
+	struct nvme_bdev		*bdevs;
+
+	struct spdk_poller		*adminq_timer_poller;
+
+	/** linked list pointer for device list */
+	TAILQ_ENTRY(nvme_ctrlr)	tailq;
+};
+
+struct nvme_bdev {
+	struct spdk_bdev	disk;
+	struct nvme_ctrlr	*nvme_ctrlr;
+	uint32_t		id;
+	bool			active;
+	struct spdk_nvme_ns	*ns;
+};
+
+void spdk_bdev_nvme_dump_trid_json(struct spdk_nvme_transport_id *trid,
+				   struct spdk_json_write_ctx *w);
+
+struct spdk_nvme_qpair *spdk_bdev_nvme_get_io_qpair(struct spdk_io_channel *ctrlr_io_ch);
+struct nvme_ctrlr *spdk_bdev_nvme_lookup_ctrlr(const char *ctrlr_name);
+struct nvme_ctrlr *spdk_bdev_nvme_first_ctrlr(void);
+struct nvme_ctrlr *spdk_bdev_nvme_next_ctrlr(struct nvme_ctrlr *prev);
+void spdk_bdev_nvme_get_opts(struct spdk_bdev_nvme_opts *opts);
+int spdk_bdev_nvme_set_opts(const struct spdk_bdev_nvme_opts *opts);
+int spdk_bdev_nvme_set_hotplug(bool enabled, uint64_t period_us, spdk_thread_fn cb, void *cb_ctx);
+
+int spdk_bdev_nvme_create(struct spdk_nvme_transport_id *trid,
+			  const char *base_name,
+			  const char **names, size_t *count,
+			  const char *hostnqn);
+struct spdk_nvme_ctrlr *spdk_bdev_nvme_get_ctrlr(struct spdk_bdev *bdev);
+
+/**
+ * Delete NVMe controller with all bdevs on top of it.
+ * Requires to pass name of NVMe controller.
+ *
+ * \param name NVMe controller name
+ * \return zero on success, -EINVAL on wrong parameters or -ENODEV if controller is not found
+ */
+int spdk_bdev_nvme_delete(const char *name);
+
+#endif // SPDK_BDEV_NVME_H