net/ifc: add probing error logs

Driver probe may fail for different causes, debug message is helpful for
debugging issue.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/drivers/net/ifc/ifcvf_vdpa.c b/drivers/net/ifc/ifcvf_vdpa.c
index e844109..aacd5f9 100644 (file)
--- a/drivers/net/ifc/ifcvf_vdpa.c
+++ b/drivers/net/ifc/ifcvf_vdpa.c
@@ -22,7 +22,7 @@
 
 #define DRV_LOG(level, fmt, args...) \
        rte_log(RTE_LOG_ ## level, ifcvf_vdpa_logtype, \
-               "%s(): " fmt "\n", __func__, ##args)
+               "IFCVF %s(): " fmt "\n", __func__, ##args)
 
 #ifndef PAGE_SIZE
 #define PAGE_SIZE 4096
@@ -756,11 +756,16 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 
        internal->pdev = pci_dev;
        rte_spinlock_init(&internal->lock);
-       if (ifcvf_vfio_setup(internal) < 0)
-               return -1;
 
-       if (ifcvf_init_hw(&internal->hw, internal->pdev) < 0)
-               return -1;
+       if (ifcvf_vfio_setup(internal) < 0) {
+               DRV_LOG(ERR, "failed to setup device %s", pci_dev->name);
+               goto error;
+       }
+
+       if (ifcvf_init_hw(&internal->hw, internal->pdev) < 0) {
+               DRV_LOG(ERR, "failed to init device %s", pci_dev->name);
+               goto error;
+       }
 
        internal->max_queues = IFCVF_MAX_QUEUES;
        features = ifcvf_get_features(&internal->hw);
@@ -782,8 +787,10 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 
        internal->did = rte_vdpa_register_device(&internal->dev_addr,
                                &ifcvf_ops);
-       if (internal->did < 0)
+       if (internal->did < 0) {
+               DRV_LOG(ERR, "failed to register device %s", pci_dev->name);
                goto error;
+       }
 
        rte_atomic32_set(&internal->started, 1);
        update_datapath(internal);