ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lvol: Use blobstore ext API in data path

Browse Source 
The new blobstore ext API is used when the user
provides ext_io_opts in bdev layer.
To store blobstore ext_io_opts, vbdev_lvol reports
non-zero get_ctx_size in bdev module interface.

Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Change-Id: I64076b5369533be0c1d69ca48aef9d70a9abe488
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11373
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: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
This commit is contained in:
Alexey Marchuk 2022-01-31 15:10:53 +03:00 committed by Tomasz Zawadzki
parent c3a40396cf
commit 248ccd8607
2 changed files with 92 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
module/bdev/lvol/vbdev_lvol.c
View File

@ -3,6 +3,7 @@
*
* Copyright (c) Intel Corporation.
* All rights reserved.
* Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -40,6 +41,10 @@
#include "vbdev_lvol.h"
struct vbdev_lvol_io {
struct spdk_blob_ext_io_opts ext_io_opts;
};
static TAILQ_HEAD(, lvol_store_bdev) g_spdk_lvol_pairs = TAILQ_HEAD_INITIALIZER(
g_spdk_lvol_pairs);
@ -840,8 +845,23 @@ lvol_read(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
start_page = bdev_io->u.bdev.offset_blocks;
num_pages = bdev_io->u.bdev.num_blocks;
spdk_blob_io_readv(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io);
if (bdev_io->u.bdev.ext_opts) {
struct vbdev_lvol_io *lvol_io = (struct vbdev_lvol_io *)bdev_io->driver_ctx;
lvol_io->ext_io_opts.size = sizeof(lvol_io->ext_io_opts);
lvol_io->ext_io_opts.memory_domain = bdev_io->u.bdev.ext_opts->memory_domain;
lvol_io->ext_io_opts.memory_domain_ctx = bdev_io->u.bdev.ext_opts->memory_domain_ctx;
/* Save a pointer to ext_opts passed by the user, it will be used in bs_dev readv/writev_ext functions
* to restore ext_opts structure. That is done since bdev and blob extended functions use different
* extended opts structures */
lvol_io->ext_io_opts.user_ctx = bdev_io->u.bdev.ext_opts;
spdk_blob_io_readv_ext(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io, &lvol_io->ext_io_opts);
} else {
spdk_blob_io_readv(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io);
}
}
static void
@ -853,8 +873,23 @@ lvol_write(struct spdk_lvol *lvol, struct spdk_io_channel *ch, struct spdk_bdev_
start_page = bdev_io->u.bdev.offset_blocks;
num_pages = bdev_io->u.bdev.num_blocks;
spdk_blob_io_writev(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io);
if (bdev_io->u.bdev.ext_opts) {
struct vbdev_lvol_io *lvol_io = (struct vbdev_lvol_io *)bdev_io->driver_ctx;
lvol_io->ext_io_opts.size = sizeof(lvol_io->ext_io_opts);
lvol_io->ext_io_opts.memory_domain = bdev_io->u.bdev.ext_opts->memory_domain;
lvol_io->ext_io_opts.memory_domain_ctx = bdev_io->u.bdev.ext_opts->memory_domain_ctx;
/* Save a pointer to ext_opts passed by the user, it will be used in bs_dev readv/writev_ext functions
* to restore ext_opts structure. That is done since bdev and blob extended functions use different
* extended opts structures */
lvol_io->ext_io_opts.user_ctx = bdev_io->u.bdev.ext_opts;
spdk_blob_io_writev_ext(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io, &lvol_io->ext_io_opts);
} else {
spdk_blob_io_writev(blob, ch, bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, start_page,
num_pages, lvol_op_comp, bdev_io);
}
}
static int
@ -1278,7 +1313,7 @@ vbdev_lvs_fini_start(void)
static int
vbdev_lvs_get_ctx_size(void)
{
return 0;
return sizeof(struct vbdev_lvol_io);
}
static void

53
test/unit/lib/bdev/vbdev_lvol.c/vbdev_lvol_ut.c
View File

@ -3,6 +3,7 @@
*
* Copyright (c) Intel Corporation.
* All rights reserved.
* Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -60,6 +61,7 @@ bool lvol_already_opened = false;
bool g_examine_done = false;
bool g_bdev_alias_already_exists = false;
bool g_lvs_with_name_already_exists = false;
bool g_ext_api_called;
DEFINE_STUB_V(spdk_bdev_module_fini_start_done, (void));
@ -562,6 +564,23 @@ spdk_blob_io_writev(struct spdk_blob *blob, struct spdk_io_channel *channel,
cb_fn(cb_arg, 0);
}
void
spdk_blob_io_writev_ext(struct spdk_blob *blob, struct spdk_io_channel *channel,
struct iovec *iov, int iovcnt, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg,
struct spdk_blob_ext_io_opts *io_opts)
{
struct vbdev_lvol_io *lvol_io = (struct vbdev_lvol_io *)g_io->driver_ctx;
CU_ASSERT(blob == NULL);
CU_ASSERT(channel == g_ch);
CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
CU_ASSERT(length == g_io->u.bdev.num_blocks);
CU_ASSERT(io_opts == &lvol_io->ext_io_opts);
g_ext_api_called = true;
cb_fn(cb_arg, 0);
}
void
spdk_blob_io_readv(struct spdk_blob *blob, struct spdk_io_channel *channel,
struct iovec *iov, int iovcnt, uint64_t offset, uint64_t length,
@ -574,6 +593,23 @@ spdk_blob_io_readv(struct spdk_blob *blob, struct spdk_io_channel *channel,
cb_fn(cb_arg, 0);
}
void
spdk_blob_io_readv_ext(struct spdk_blob *blob, struct spdk_io_channel *channel,
struct iovec *iov, int iovcnt, uint64_t offset, uint64_t length,
spdk_blob_op_complete cb_fn, void *cb_arg,
struct spdk_blob_ext_io_opts *io_opts)
{
struct vbdev_lvol_io *lvol_io = (struct vbdev_lvol_io *)g_io->driver_ctx;
CU_ASSERT(blob == NULL);
CU_ASSERT(channel == g_ch);
CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
CU_ASSERT(length == g_io->u.bdev.num_blocks);
CU_ASSERT(io_opts == &lvol_io->ext_io_opts);
g_ext_api_called = true;
cb_fn(cb_arg, 0);
}
void
spdk_bdev_module_list_add(struct spdk_bdev_module *bdev_module)
{
@ -1356,7 +1392,9 @@ ut_vbdev_lvol_io_type_supported(void)
static void
ut_lvol_read_write(void)
{
g_io = calloc(1, sizeof(struct spdk_bdev_io));
struct spdk_bdev_ext_io_opts bdev_ext_opts = {};
g_io = calloc(1, sizeof(struct spdk_bdev_io) + vbdev_lvs_get_ctx_size());
SPDK_CU_ASSERT_FATAL(g_io != NULL);
g_base_bdev = calloc(1, sizeof(struct spdk_bdev));
SPDK_CU_ASSERT_FATAL(g_base_bdev != NULL);
@ -1374,6 +1412,19 @@ ut_lvol_read_write(void)
lvol_write(g_lvol, g_ch, g_io);
CU_ASSERT(g_io->internal.status = SPDK_BDEV_IO_STATUS_SUCCESS);
g_ext_api_called = false;
g_io->u.bdev.ext_opts = &bdev_ext_opts;
lvol_read(g_ch, g_io);
CU_ASSERT(g_io->internal.status = SPDK_BDEV_IO_STATUS_SUCCESS);
CU_ASSERT(g_ext_api_called == true);
g_ext_api_called = false;
lvol_write(g_lvol, g_ch, g_io);
CU_ASSERT(g_io->internal.status = SPDK_BDEV_IO_STATUS_SUCCESS);
CU_ASSERT(g_ext_api_called == true);
g_ext_api_called = false;
free(g_io);
free(g_base_bdev);
free(g_lvol);