2389caa4f5
This was previously named "active" as in "active namespace". But we're really using this flag to keep track of whether the namespace structure is currently populated with data structures, bdevs, etc. for the associated namespace. If we find an active namespace on an SSD that is not populated with bdevs in the bdev/nvme module, then we need to populate it. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Ie66a5ffbcb52dd0e8f8e67a14f66f19d325d91bd Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/475933 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
139 lines
4.7 KiB
C
139 lines
4.7 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_COMMON_BDEV_NVME_H
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#define SPDK_COMMON_BDEV_NVME_H
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#include "spdk/nvme.h"
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#include "spdk/bdev_module.h"
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#include "spdk/opal.h"
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TAILQ_HEAD(nvme_bdev_ctrlrs, nvme_bdev_ctrlr);
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extern struct nvme_bdev_ctrlrs g_nvme_bdev_ctrlrs;
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extern pthread_mutex_t g_bdev_nvme_mutex;
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#define NVME_MAX_CONTROLLERS 1024
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enum nvme_bdev_ns_type {
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NVME_BDEV_NS_UNKNOWN = 0,
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NVME_BDEV_NS_STANDARD = 1,
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NVME_BDEV_NS_OCSSD = 2,
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};
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struct nvme_bdev_ns {
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uint32_t id;
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enum nvme_bdev_ns_type type;
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/** Marks whether this data structure has its bdevs
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* populated for the associated namespace. It is used
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* to keep track if we need manage the populated
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* resources when a newly active namespace is found,
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* or when a namespace becomes inactive.
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*/
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bool populated;
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struct spdk_nvme_ns *ns;
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struct nvme_bdev_ctrlr *ctrlr;
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TAILQ_HEAD(, nvme_bdev) bdevs;
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void *type_ctx;
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};
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struct nvme_bdev_ctrlr {
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/**
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* points to pinned, physically contiguous memory region;
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* contains 4KB IDENTIFY structure for controller which is
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* target for CONTROLLER IDENTIFY command during initialization
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*/
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struct spdk_nvme_ctrlr *ctrlr;
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struct spdk_nvme_transport_id trid;
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char *name;
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int ref;
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bool resetting;
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bool destruct;
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/**
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* PI check flags. This flags is set to NVMe controllers created only
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* through bdev_nvme_attach_controller RPC or .INI config file. Hot added
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* NVMe controllers are not included.
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*/
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uint32_t prchk_flags;
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uint32_t num_ns;
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/** Array of pointers to namespaces indexed by nsid - 1 */
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struct nvme_bdev_ns **namespaces;
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struct spdk_opal_dev *opal_dev;
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struct spdk_poller *opal_poller;
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struct spdk_poller *adminq_timer_poller;
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/** linked list pointer for device list */
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TAILQ_ENTRY(nvme_bdev_ctrlr) tailq;
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};
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struct nvme_bdev {
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struct spdk_bdev disk;
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struct nvme_bdev_ns *nvme_ns;
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struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;
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TAILQ_ENTRY(nvme_bdev) tailq;
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};
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typedef void (*spdk_bdev_create_nvme_fn)(void *ctx, size_t bdev_count, int rc);
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struct nvme_async_probe_ctx {
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struct spdk_nvme_probe_ctx *probe_ctx;
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const char *base_name;
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const char **names;
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uint32_t count;
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uint32_t prchk_flags;
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struct spdk_poller *poller;
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struct spdk_nvme_transport_id trid;
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struct spdk_nvme_ctrlr_opts opts;
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spdk_bdev_create_nvme_fn cb_fn;
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void *cb_ctx;
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uint32_t populates_in_progress;
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};
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void nvme_ctrlr_populate_namespace_done(struct nvme_async_probe_ctx *ctx,
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struct nvme_bdev_ns *ns, int rc);
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struct nvme_bdev_ctrlr *nvme_bdev_ctrlr_get(const struct spdk_nvme_transport_id *trid);
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struct nvme_bdev_ctrlr *nvme_bdev_ctrlr_get_by_name(const char *name);
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struct nvme_bdev_ctrlr *nvme_bdev_first_ctrlr(void);
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struct nvme_bdev_ctrlr *nvme_bdev_next_ctrlr(struct nvme_bdev_ctrlr *prev);
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void nvme_bdev_dump_trid_json(struct spdk_nvme_transport_id *trid,
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struct spdk_json_write_ctx *w);
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void nvme_bdev_ctrlr_destruct(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr);
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void nvme_bdev_attach_bdev_to_ns(struct nvme_bdev_ns *nvme_ns, struct nvme_bdev *nvme_disk);
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void nvme_bdev_detach_bdev_from_ns(struct nvme_bdev *nvme_disk);
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#endif /* SPDK_COMMON_BDEV_NVME_H */
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