a6dbe3721e
per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2019 Intel Corporation.
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* All rights reserved.
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*/
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/** \file
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* SPDK cuse
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*/
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#ifndef SPDK_NVME_IO_MSG_H_
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#define SPDK_NVME_IO_MSG_H_
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typedef void (*spdk_nvme_io_msg_fn)(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
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void *arg);
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struct spdk_nvme_io_msg {
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struct spdk_nvme_ctrlr *ctrlr;
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uint32_t nsid;
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spdk_nvme_io_msg_fn fn;
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void *arg;
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};
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struct nvme_io_msg_producer {
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const char *name;
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void (*update)(struct spdk_nvme_ctrlr *ctrlr);
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void (*stop)(struct spdk_nvme_ctrlr *ctrlr);
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STAILQ_ENTRY(nvme_io_msg_producer) link;
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};
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int nvme_io_msg_send(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid, spdk_nvme_io_msg_fn fn,
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void *arg);
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/**
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* Process IO message sent to controller from external module.
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*
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* This call process requests from the ring, send IO to an allocated qpair or
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* admin commands in its context. This call is non-blocking and intended to be
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* polled by SPDK thread to provide safe environment for NVMe request
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* completion sent by external module to controller.
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*
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* The caller must ensure that each controller is polled by only one thread at
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* a time.
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*
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* This function may be called at any point while the controller is attached to
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* the SPDK NVMe driver.
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*
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* \param ctrlr Opaque handle to NVMe controller.
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*
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* \return number of processed external IO messages.
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*/
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int nvme_io_msg_process(struct spdk_nvme_ctrlr *ctrlr);
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int nvme_io_msg_ctrlr_register(struct spdk_nvme_ctrlr *ctrlr,
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struct nvme_io_msg_producer *io_msg_producer);
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void nvme_io_msg_ctrlr_unregister(struct spdk_nvme_ctrlr *ctrlr,
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struct nvme_io_msg_producer *io_msg_producer);
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void nvme_io_msg_ctrlr_detach(struct spdk_nvme_ctrlr *ctrlr);
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void nvme_io_msg_ctrlr_update(struct spdk_nvme_ctrlr *ctrlr);
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#endif /* SPDK_NVME_IO_MSG_H_ */
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