X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fnetdev-provider.h;h=b095779cdac33b1f5e60b11d81f604b12b2d0038;hb=76c308b50d316a2186283467e12564c0234c7501;hp=4181758fa762a2c9c2e3837ed5f5a15a37a95d9b;hpb=6d9e6eb44fc82ae985e6e8db4f156ba56f8bea39;p=openvswitch diff --git a/lib/netdev-provider.h b/lib/netdev-provider.h index 4181758f..b095779c 100644 --- a/lib/netdev-provider.h +++ b/lib/netdev-provider.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010 Nicira Networks. + * Copyright (c) 2009, 2010, 2011 Nicira Networks. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -166,7 +166,7 @@ struct netdev_class { * * If this netdev class does not support enumeration, this may be a null * pointer. */ - int (*enumerate)(struct svec *all_names); + int (*enumerate)(struct sset *all_names); /* Attempts to receive a packet from 'netdev' into the 'size' bytes in * 'buffer'. If successful, returns the number of bytes in the received @@ -175,10 +175,9 @@ struct netdev_class { * * May return -EOPNOTSUPP if a network device does not implement packet * reception through this interface. This function may be set to null if - * it would always return -EOPNOTSUPP anyhow. (This will disable the OVS - * integrated DHCP client and OpenFlow controller discovery, and prevent - * the network device from being usefully used by the netdev-based - * "userspace datapath".) */ + * it would always return -EOPNOTSUPP anyhow. (This will prevent the + * network device from being usefully used by the netdev-based "userspace + * datapath".) */ int (*recv)(struct netdev *netdev, void *buffer, size_t size); /* Registers with the poll loop to wake up from the next call to @@ -209,10 +208,10 @@ struct netdev_class { * * May return EOPNOTSUPP if a network device does not implement packet * transmission through this interface. This function may be set to null - * if it would always return EOPNOTSUPP anyhow. (This will disable the OVS - * integrated DHCP client and OpenFlow controller discovery, and prevent - * the network device from being usefully used by the netdev-based - * "userspace datapath".) */ + * if it would always return EOPNOTSUPP anyhow. (This will prevent the + * network device from being usefully used by the netdev-based "userspace + * datapath". It will also prevent the OVS implementation of bonding from + * working properly over 'netdev'.) */ int (*send)(struct netdev *netdev, const void *buffer, size_t size); /* Registers with the poll loop to wake up from the next call to @@ -237,7 +236,10 @@ struct netdev_class { * * The MTU is the maximum size of transmitted (and received) packets, in * bytes, not including the hardware header; thus, this is typically 1500 - * bytes for Ethernet devices.*/ + * bytes for Ethernet devices. + * + * If 'netdev' does not have an MTU (e.g. as some tunnels do not), then + * this function should set '*mtup' to INT_MAX. */ int (*get_mtu)(const struct netdev *netdev, int *mtup); /* Returns the ifindex of 'netdev', if successful, as a positive number. @@ -329,11 +331,11 @@ struct netdev_class { * this function must not add "" to 'types'. * * The caller is responsible for initializing 'types' (e.g. with - * svec_init()) before calling this function. The caller takes ownership - * of the strings added to 'types'. + * sset_init()) before calling this function. The caller retains ownership + * of 'types'. * * May be NULL if 'netdev' does not support QoS at all. */ - int (*get_qos_types)(const struct netdev *netdev, struct svec *types); + int (*get_qos_types)(const struct netdev *netdev, struct sset *types); /* Queries 'netdev' for its capabilities regarding the specified 'type' of * QoS. On success, initializes 'caps' with the QoS capabilities.