eal: add hotplug operations for PCI and vdev

[dpdk.git] / lib / librte_eal / common / eal_common_dev.c

diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index a8a4146..88f9d3f 100644 (file)
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -150,3 +150,51 @@ rte_eal_vdev_uninit(const char *name)
        RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
        return -EINVAL;
 }
+
+int rte_eal_dev_attach(const char *name, const char *devargs)
+{
+       struct rte_pci_addr addr;
+
+       if (name == NULL || devargs == NULL) {
+               RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
+               return -EINVAL;
+       }
+
+       if (eal_parse_pci_DomBDF(name, &addr) == 0) {
+               if (rte_eal_pci_probe_one(&addr) < 0)
+                       goto err;
+
+       } else {
+               if (rte_eal_vdev_init(name, devargs))
+                       goto err;
+       }
+
+       return 0;
+
+err:
+       RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
+       return -EINVAL;
+}
+
+int rte_eal_dev_detach(const char *name)
+{
+       struct rte_pci_addr addr;
+
+       if (name == NULL) {
+               RTE_LOG(ERR, EAL, "Invalid device provided.\n");
+               return -EINVAL;
+       }
+
+       if (eal_parse_pci_DomBDF(name, &addr) == 0) {
+               if (rte_eal_pci_detach(&addr) < 0)
+                       goto err;
+       } else {
+               if (rte_eal_vdev_uninit(name))
+                       goto err;
+       }
+       return 0;
+
+err:
+       RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);
+       return -EINVAL;
+}