Commit cda27398 authored by Wojciech Malikowski's avatar Wojciech Malikowski Committed by Darek Stojaczyk
Browse files

examples/nvme/hello_world: Optional VMD enumeration 



New flag -V was added for VMD enabling.

Change-Id: I2d090a70b9d9b2bd996467a9b3da908f6eed1062
Signed-off-by: default avatarWojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457601


Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarDarek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent de6a68e0

examples/nvme/hello_world/hello_world.c

+41 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#include "spdk/stdinc.h"



#include "spdk/nvme.h"

#include "spdk/vmd.h"

#include "spdk/env.h"



struct ctrlr_entry {
@@ -52,6 +53,8 @@ struct ns_entry { 
static struct ctrlr_entry *g_controllers = NULL;

static struct ns_entry *g_namespaces = NULL;



static bool g_vmd = false;



static void

register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)

{
@@ -322,11 +325,44 @@ cleanup(void) 
	}

}



static void

usage(const char *program_name)

{

	printf("%s [options]", program_name);

	printf("\n");

	printf("options:\n");

	printf(" -V         enumerate VMD\n");

}



static int

parse_args(int argc, char **argv)

{

	int op;



	while ((op = getopt(argc, argv, "V")) != -1) {

		switch (op) {

		case 'V':

			g_vmd = true;

			break;

		default:

			usage(argv[0]);

			return 1;

		}

	}



	return 0;

}



int main(int argc, char **argv)

{

	int rc;

	struct spdk_env_opts opts;



	rc = parse_args(argc, argv);

	if (rc != 0) {

		return rc;

	}



	/*

	 * SPDK relies on an abstraction around the local environment

	 * named env that handles memory allocation and PCI device operations.
@@ -343,6 +379,11 @@ int main(int argc, char **argv) 


	printf("Initializing NVMe Controllers\n");



	if (g_vmd && spdk_vmd_init()) {

		fprintf(stderr, "Failed to initialize VMD."

			" Some NVMe devices can be unavailable.\n");

	}



	/*

	 * Start the SPDK NVMe enumeration process.  probe_cb will be called

	 *  for each NVMe controller found, giving our application a choice on