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bdev/uring: add support for bdev_uring_get_spdk_running_config()

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Signed-off-by: Yao Liu <yotta.liu@ucloud.cn>
Change-Id: If86ef2dad60260b5261fc05d075625dfa2ed0340
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/474178
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>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Yao Liu 2019-11-13 20:19:05 +08:00 committed by Tomasz Zawadzki
parent e475586b2a
commit 81b4f2fec2
1 changed files with 30 additions and 1 deletions
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31
module/bdev/uring/bdev_uring.c
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@ -77,6 +77,7 @@ struct bdev_uring {
static int bdev_uring_init(void);
static void bdev_uring_fini(void);
static void uring_free_bdev(struct bdev_uring *uring);
static void bdev_uring_get_spdk_running_config(FILE *fp);
static TAILQ_HEAD(, bdev_uring) g_uring_bdev_head;
#define SPDK_URING_QUEUE_DEPTH 512
@ -92,7 +93,7 @@ static struct spdk_bdev_module uring_if = {
.name = "uring",
.module_init = bdev_uring_init,
.module_fini = bdev_uring_fini,
.config_text = NULL,
.config_text = bdev_uring_get_spdk_running_config,
.get_ctx_size = bdev_uring_get_ctx_size,
};
@ -609,4 +610,32 @@ bdev_uring_fini(void)
spdk_io_device_unregister(&uring_if, NULL);
}
static void
bdev_uring_get_spdk_running_config(FILE *fp)
{
char *file;
char *name;
uint32_t block_size;
struct bdev_uring *uring;
fprintf(fp,
"\n"
"# Users must change this section to match the /dev/sdX devices to be\n"
"# exported as iSCSI LUNs. The devices are accessed using io_uring.\n"
"# The format is:\n"
"# URING <file name> <bdev name> [<block size>]\n"
"# The file name is the backing device\n"
"# The bdev name can be referenced from elsewhere in the configuration file.\n"
"# Block size may be omitted to automatically detect the block size of a bdev.\n"
"[URING]\n");
TAILQ_FOREACH(uring, &g_uring_bdev_head, link) {
file = uring->filename;
name = uring->bdev.name;
block_size = uring->bdev.blocklen;
fprintf(fp, " URING %s %s %d\n", file, name, block_size);
}
fprintf(fp, "\n");
}
SPDK_LOG_REGISTER_COMPONENT("uring", SPDK_LOG_URING)