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copy_engine: Support dump config text for IOAT config

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IOAT module of copy engine requires config information in the .INI
config file. However dump config text is not supported yet.

Dump config text is legacy feature but this becomes a preparation
for the upcoming JSON config file.

Change-Id: I9b7349cac9c00ca3ce1d944a84cbc445a6f1aec4
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/405845
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Shuhei Matsumoto 2018-04-02 18:33:10 +09:00 committed by Jim Harris
parent 3f522bfeb0
commit 0fed4e0704
4 changed files with 51 additions and 2 deletions
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7
include/spdk/copy_engine.h
View File

@ -66,6 +66,13 @@ int spdk_copy_engine_initialize(void);
*/
void spdk_copy_engine_finish(spdk_copy_fini_cb cb_fn, void *cb_arg);
/**
* Get the configuration for the copy engine.
*
* \param fp The pointer to a file that will be written to the configuration.
*/
void spdk_copy_engine_config_text(FILE *fp);
/**
* Close the copy engine module and perform any necessary cleanup.
*/

12
lib/copy/copy_engine.c
View File

@ -285,4 +285,16 @@ spdk_copy_engine_finish(spdk_copy_fini_cb cb_fn, void *cb_arg)
spdk_copy_engine_module_finish();
}
void
spdk_copy_engine_config_text(FILE *fp)
{
struct spdk_copy_module_if *copy_engine_module;
TAILQ_FOREACH(copy_engine_module, &spdk_copy_module_list, tailq) {
if (copy_engine_module->config_text) {
copy_engine_module->config_text(fp);
}
}
}
SPDK_COPY_MODULE_REGISTER(copy_engine_mem_init, NULL, NULL, copy_engine_mem_get_ctx_size)

32
lib/copy/ioat/copy_engine_ioat.c
View File

@ -116,6 +116,7 @@ struct ioat_task {
static int copy_engine_ioat_init(void);
static void copy_engine_ioat_exit(void *ctx);
static void copy_engine_ioat_config_text(FILE *fp);
static size_t
copy_engine_ioat_get_ctx_size(void)
@ -123,7 +124,8 @@ copy_engine_ioat_get_ctx_size(void)
return sizeof(struct ioat_task) + sizeof(struct spdk_copy_task);
}
SPDK_COPY_MODULE_REGISTER(copy_engine_ioat_init, copy_engine_ioat_exit, NULL,
SPDK_COPY_MODULE_REGISTER(copy_engine_ioat_init, copy_engine_ioat_exit,
copy_engine_ioat_config_text,
copy_engine_ioat_get_ctx_size)
static void
@ -319,3 +321,31 @@ copy_engine_ioat_init(void)
sizeof(struct ioat_io_channel));
return 0;
}
#define COPY_ENGINE_IOAT_HEADER_TMPL \
"[Ioat]\n" \
" # Users may not want to use offload even it is available.\n" \
" # Users may use the whitelist to initialize specified devices, IDS\n" \
" # uses BUS:DEVICE.FUNCTION to identify each Ioat channel.\n"
#define COPY_ENGINE_IOAT_DISABLE_TMPL \
" Disable %s\n"
#define COPY_ENGINE_IOAT_WHITELIST_TMPL \
" Whitelist %.4" PRIx16 ":%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8 "\n"
static void
copy_engine_ioat_config_text(FILE *fp)
{
int i;
struct spdk_pci_addr *dev;
fprintf(fp, COPY_ENGINE_IOAT_HEADER_TMPL);
fprintf(fp, COPY_ENGINE_IOAT_DISABLE_TMPL, g_ioat_disable ? "Yes" : "No");
for (i = 0; i < g_probe_ctx.num_whitelist_devices; i++) {
dev = &g_probe_ctx.whitelist[i];
fprintf(fp, COPY_ENGINE_IOAT_WHITELIST_TMPL,
dev->domain, dev->bus, dev->dev, dev->func);
}
}

2
lib/event/subsystems/copy/copy.c
View File

@ -64,7 +64,7 @@ static struct spdk_subsystem g_spdk_subsystem_copy = {
.name = "copy",
.init = spdk_copy_engine_subsystem_initialize,
.fini = spdk_copy_engine_subsystem_finish,
.config = NULL,
.config = spdk_copy_engine_config_text,
};
SPDK_SUBSYSTEM_REGISTER(g_spdk_subsystem_copy);