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examples/hello_bdev: allow running without ini config file

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Remove the config file check explicitly preventing hello_bdev
from starting and also update the docs not to reference config
files at all.

Change-Id: Ieefb629ef16d75a43c2c1fad2ac442f6e37cc16d
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/483386
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
This commit is contained in:
Darek Stojaczyk 2020-01-30 14:45:46 +01:00 committed by Tomasz Zawadzki
parent 70597c0a14
commit 15d92f6a12
1 changed files with 13 additions and 18 deletions
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31
examples/bdev/hello_world/hello_bdev.c
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@ -199,9 +199,9 @@ hello_start(void *arg1)
SPDK_NOTICELOG("Successfully started the application\n");
/*
* Get the bdev. There can be many bdevs configured in
* in the configuration file but this application will only
* use the one input by the user at runtime so we get it via its name.
* Get the bdev. There can be many bdevs configured, but this
* application will only use the one input by the user at runtime so
* we get it via its name.
*/
hello_context->bdev = spdk_bdev_get_by_name(hello_context->bdev_name);
if (hello_context->bdev == NULL) {
@ -262,35 +262,30 @@ main(int argc, char **argv)
opts.name = "hello_bdev";
/*
* The user can provide the config file and bdev name at run time.
* For example, to use Malloc0 in file bdev.conf run with params
* ./hello_bdev -c bdev.conf -b Malloc0
* To use passthru bdev PT0 run with params
* ./hello_bdev -c bdev.conf -b PT0
* If the bdev name is not specified,
* then Malloc0 is used by default
* Parse built-in SPDK command line parameters as well
* as our custom one(s).
*/
if ((rc = spdk_app_parse_args(argc, argv, &opts, "b:", NULL, hello_bdev_parse_arg,
hello_bdev_usage)) != SPDK_APP_PARSE_ARGS_SUCCESS) {
exit(rc);
}
if (opts.config_file == NULL) {
SPDK_ERRLOG("configfile must be specified using -c <conffile> e.g. -c bdev.conf\n");
exit(1);
}
hello_context.bdev_name = g_bdev_name;
/*
* spdk_app_start() will block running hello_start() until
* spdk_app_stop() is called by someone (not simply when
* hello_start() returns), or if an error occurs during
* spdk_app_start() before hello_start() runs.
* spdk_app_start() will initialize the SPDK framework, call hello_start(),
* and then block until spdk_app_stop() is called (or if an initialization
* error occurs, spdk_app_start() will return with rc even without calling
* hello_start().
*/
rc = spdk_app_start(&opts, hello_start, &hello_context);
if (rc) {
SPDK_ERRLOG("ERROR starting application\n");
}
/* At this point either spdk_app_stop() was called, or spdk_app_start()
* failed because of internal error.
*/
/* When the app stops, free up memory that we allocated. */
spdk_dma_free(hello_context.buff);