488570ebd4
Many open source projects have moved to using SPDX identifiers to specify license information, reducing the amount of boilerplate code in every source file. This patch replaces the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause identifier. Almost all of these files share the exact same license text, and this patch only modifies the files that contain the most common license text. There can be slight variations because the third clause contains company names - most say "Intel Corporation", but there are instances for Nvidia, Samsung, Eideticom and even "the copyright holder". Used a bash script to automate replacement of the license text with SPDX identifier which is checked into scripts/spdx.sh. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Dong Yi <dongx.yi@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: <qun.wan@intel.com>
142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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* Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#include "spdk/stdinc.h"
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#include "spdk/blob.h"
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#include "spdk/dma.h"
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#include "blobstore.h"
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static void
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zeroes_destroy(struct spdk_bs_dev *bs_dev)
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{
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return;
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}
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static void
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zeroes_read(struct spdk_bs_dev *dev, struct spdk_io_channel *channel, void *payload,
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uint64_t lba, uint32_t lba_count, struct spdk_bs_dev_cb_args *cb_args)
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{
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memset(payload, 0, dev->blocklen * lba_count);
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, 0);
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}
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static void
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zeroes_write(struct spdk_bs_dev *dev, struct spdk_io_channel *channel, void *payload,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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zeroes_readv(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count, struct spdk_bs_dev_cb_args *cb_args)
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{
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int i;
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for (i = 0; i < iovcnt; i++) {
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memset(iov[i].iov_base, 0, iov[i].iov_len);
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}
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, 0);
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}
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static void
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zeroes_writev(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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_read_memory_domain_memzero_done(void *ctx, int rc)
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{
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struct spdk_bs_dev_cb_args *cb_args = (struct spdk_bs_dev_cb_args *)ctx;
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, rc);
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}
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static void
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zeroes_readv_ext(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count, struct spdk_bs_dev_cb_args *cb_args,
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struct spdk_blob_ext_io_opts *ext_io_opts)
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{
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int i, rc;
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if (ext_io_opts->memory_domain) {
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rc = spdk_memory_domain_memzero(ext_io_opts->memory_domain, ext_io_opts->memory_domain_ctx, iov,
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iovcnt, _read_memory_domain_memzero_done, cb_args);
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if (rc) {
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, rc);
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}
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return;
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}
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for (i = 0; i < iovcnt; i++) {
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memset(iov[i].iov_base, 0, iov[i].iov_len);
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}
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, 0);
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}
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static void
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zeroes_writev_ext(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args,
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struct spdk_blob_ext_io_opts *ext_io_opts)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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zeroes_write_zeroes(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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uint64_t lba, uint64_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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zeroes_unmap(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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uint64_t lba, uint64_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static struct spdk_bs_dev g_zeroes_bs_dev = {
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.blockcnt = UINT64_MAX,
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.blocklen = 512,
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.create_channel = NULL,
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.destroy_channel = NULL,
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.destroy = zeroes_destroy,
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.read = zeroes_read,
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.write = zeroes_write,
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.readv = zeroes_readv,
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.writev = zeroes_writev,
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.readv_ext = zeroes_readv_ext,
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.writev_ext = zeroes_writev_ext,
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.write_zeroes = zeroes_write_zeroes,
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.unmap = zeroes_unmap,
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};
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struct spdk_bs_dev *
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bs_create_zeroes_dev(void)
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{
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return &g_zeroes_bs_dev;
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}
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