/*- * 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_COMMON_BDEV_NVME_H #define SPDK_COMMON_BDEV_NVME_H #include "spdk/nvme.h" #include "spdk/bdev_module.h" TAILQ_HEAD(nvme_bdev_ctrlrs, nvme_bdev_ctrlr); extern struct nvme_bdev_ctrlrs g_nvme_bdev_ctrlrs; extern pthread_mutex_t g_bdev_nvme_mutex; #define NVME_MAX_CONTROLLERS 1024 struct nvme_bdev_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; bool destruct; /** * PI check flags. This flags is set to NVMe controllers created only * through construct_nvme_bdev RPC or .INI config file. Hot added * NVMe controllers are not included. */ uint32_t prchk_flags; 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_bdev_ctrlr) tailq; }; struct nvme_bdev { struct spdk_bdev disk; struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; uint32_t id; bool active; struct spdk_nvme_ns *ns; }; struct nvme_bdev_ctrlr *nvme_bdev_ctrlr_get(const struct spdk_nvme_transport_id *trid); struct nvme_bdev_ctrlr *nvme_bdev_ctrlr_get_by_name(const char *name); struct nvme_bdev_ctrlr *nvme_bdev_first_ctrlr(void); struct nvme_bdev_ctrlr *nvme_bdev_next_ctrlr(struct nvme_bdev_ctrlr *prev); void nvme_bdev_dump_trid_json(struct spdk_nvme_transport_id *trid, struct spdk_json_write_ctx *w); #endif /* SPDK_COMMON_BDEV_NVME_H */