diff options
| -rw-r--r-- | include/net/net.h | 40 | ||||
| -rw-r--r-- | net/net.c | 51 |
2 files changed, 91 insertions, 0 deletions
diff --git a/include/net/net.h b/include/net/net.h index ffbd2c8d56..dff1872b4d 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -207,7 +207,47 @@ int qemu_show_nic_models(const char *arg, const char *const *models); void qemu_check_nic_model(NICInfo *nd, const char *model); int qemu_find_nic_model(NICInfo *nd, const char * const *models, const char *default_model); +/** + * qemu_find_nic_info: Obtain NIC configuration information + * @typename: Name of device object type + * @match_default: Match NIC configurations with no model specified + * @alias: Additional model string to match (for user convenience and + * backward compatibility). + * + * Search for a NIC configuration matching the NIC model constraints. + */ +NICInfo *qemu_find_nic_info(const char *typename, bool match_default, + const char *alias); +/** + * qemu_configure_nic_device: Apply NIC configuration to a given device + * @dev: Network device to be configured + * @match_default: Match NIC configurations with no model specified + * @alias: Additional model string to match + * + * Search for a NIC configuration for the provided device, using the + * additionally specified matching constraints. If found, apply the + * configuration using qdev_set_nic_properties() and return %true. + * + * This is used by platform code which creates the device anyway, + * regardless of whether there is a configuration for it. This tends + * to be platforms which ignore `--nodefaults` and create net devices + * anyway, for example because the Ethernet device on that board is + * always physically present. + */ +bool qemu_configure_nic_device(DeviceState *dev, bool match_default, + const char *alias); +/** + * qemu_create_nic_device: Create a NIC device if a configuration exists for it + * @typename: Object typename of network device + * @match_default: Match NIC configurations with no model specified + * @alias: Additional model string to match + * + * Search for a NIC configuration for the provided device type. If found, + * create an object of the corresponding type and return it. + */ +DeviceState *qemu_create_nic_device(const char *typename, bool match_default, + const char *alias); void print_net_client(Monitor *mon, NetClientState *nc); void net_socket_rs_init(SocketReadState *rs, SocketReadStateFinalize *finalize, @@ -1087,6 +1087,57 @@ static int net_init_nic(const Netdev *netdev, const char *name, return idx; } +NICInfo *qemu_find_nic_info(const char *typename, bool match_default, + const char *alias) +{ + NICInfo *nd; + int i; + + for (i = 0; i < nb_nics; i++) { + nd = &nd_table[i]; + + if (!nd->used || nd->instantiated) { + continue; + } + + if ((match_default && !nd->model) || !g_strcmp0(nd->model, typename) + || (alias && !g_strcmp0(nd->model, alias))) { + return nd; + } + } + return NULL; +} + + +/* "I have created a device. Please configure it if you can" */ +bool qemu_configure_nic_device(DeviceState *dev, bool match_default, + const char *alias) +{ + NICInfo *nd = qemu_find_nic_info(object_get_typename(OBJECT(dev)), + match_default, alias); + + if (nd) { + qdev_set_nic_properties(dev, nd); + return true; + } + return false; +} + +/* "Please create a device, if you have a configuration for it" */ +DeviceState *qemu_create_nic_device(const char *typename, bool match_default, + const char *alias) +{ + NICInfo *nd = qemu_find_nic_info(typename, match_default, alias); + DeviceState *dev; + + if (!nd) { + return NULL; + } + + dev = qdev_new(typename); + qdev_set_nic_properties(dev, nd); + return dev; +} static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])( const Netdev *netdev, |