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examples/perf: exit perf tool if no controllers found

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Change-Id: Ie70236f6be40ad9598969da2a462af44763c4ac4
Signed-off-by: Liang Yan <liang.z.yan@intel.com>
Reviewed-on: https://review.gerrithub.io/379437
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Liang Yan 2017-09-22 11:40:23 +08:00 committed by Daniel Verkamp
parent ad9a842c71
commit 6bfff2f1cc
1 changed files with 7 additions and 0 deletions
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7
examples/nvme/perf/perf.c
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@ -147,6 +147,7 @@ static bool g_latency_ssd_tracking_enable = false;
static int g_latency_sw_tracking_level = 0; static int g_latency_sw_tracking_level = 0;
static struct ctrlr_entry *g_controllers = NULL; static struct ctrlr_entry *g_controllers = NULL;
static int g_controllers_found = 0;
static struct ns_entry *g_namespaces = NULL; static struct ns_entry *g_namespaces = NULL;
static int g_num_namespaces = 0; static int g_num_namespaces = 0;
static struct worker_thread *g_workers = NULL; static struct worker_thread *g_workers = NULL;
@ -1202,6 +1203,7 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
struct spdk_pci_device *pci_dev; struct spdk_pci_device *pci_dev;
struct spdk_pci_id pci_id; struct spdk_pci_id pci_id;
g_controllers_found++;
if (trid->trtype != SPDK_NVME_TRANSPORT_PCIE) { if (trid->trtype != SPDK_NVME_TRANSPORT_PCIE) {
printf("Attached to NVMe over Fabrics controller at %s:%s: %s\n", printf("Attached to NVMe over Fabrics controller at %s:%s: %s\n",
trid->traddr, trid->trsvcid, trid->traddr, trid->trsvcid,
@ -1365,6 +1367,11 @@ int main(int argc, char **argv)
goto cleanup; goto cleanup;
} }
if (g_controllers_found == 0) {
fprintf(stderr, "No NVMe controllers found.\n");
return 0;
}
if (associate_workers_with_ns() != 0) { if (associate_workers_with_ns() != 0) {
rc = -1; rc = -1;
goto cleanup; goto cleanup;