common/iavf: support advanced RSS input set change

[dpdk.git] / drivers / bus / vdev / vdev.c

diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 2c03ca4..a89ea23 100644 (file)
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -143,10 +143,11 @@ vdev_probe_all_drivers(struct rte_vdev_device *dev)
        struct rte_vdev_driver *driver;
        int ret;
 
-       name = rte_vdev_device_name(dev);
+       if (rte_dev_is_probed(&dev->device))
+               return -EEXIST;
 
-       VDEV_LOG(DEBUG, "Search driver %s to probe device %s", name,
-               rte_vdev_device_name(dev));
+       name = rte_vdev_device_name(dev);
+       VDEV_LOG(DEBUG, "Search driver to probe device %s", name);
 
        if (vdev_parse(name, &driver))
                return -1;
@@ -191,7 +192,7 @@ alloc_devargs(const char *name, const char *args)
        else
                devargs->args = strdup("");
 
-       ret = snprintf(devargs->name, sizeof(devargs->name), "%s", name);
+       ret = strlcpy(devargs->name, name, sizeof(devargs->name));
        if (ret < 0 || ret >= (int)sizeof(devargs->name)) {
                free(devargs->args);
                free(devargs);
@@ -408,6 +409,10 @@ vdev_scan(void)
 
        if (rte_mp_action_register(VDEV_MP_KEY, vdev_action) < 0 &&
            rte_errno != EEXIST) {
+               /* for primary, unsupported IPC is not an error */
+               if (rte_eal_process_type() == RTE_PROC_PRIMARY &&
+                               rte_errno == ENOTSUP)
+                       goto scan;
                VDEV_LOG(ERR, "Failed to add vdev mp action");
                return -1;
        }
@@ -435,6 +440,7 @@ vdev_scan(void)
                /* Fall through to allow private vdevs in secondary process */
        }
 
+scan:
        /* call custom scan callbacks if any */
        rte_spinlock_lock(&vdev_custom_scan_lock);
        TAILQ_FOREACH(custom_scan, &vdev_custom_scans, next) {
@@ -482,7 +488,7 @@ static int
 vdev_probe(void)
 {
        struct rte_vdev_device *dev;
-       int ret = 0;
+       int r, ret = 0;
 
        /* call the init function for each virtual device */
        TAILQ_FOREACH(dev, &vdev_device_list, next) {
@@ -491,10 +497,10 @@ vdev_probe(void)
                 * we call each driver probe.
                 */
 
-               if (rte_dev_is_probed(&dev->device))
-                       continue;
-
-               if (vdev_probe_all_drivers(dev)) {
+               r = vdev_probe_all_drivers(dev);
+               if (r != 0) {
+                       if (r == -EEXIST)
+                               continue;
                        VDEV_LOG(ERR, "failed to initialize %s device",
                                rte_vdev_device_name(dev));
                        ret = -1;