enum { QUEUE_MASK = MAX_QUEUE_LEN - 1 };
BUILD_ASSERT_DECL(IS_POW2(MAX_QUEUE_LEN));
+struct dp_netdev_upcall {
+ struct dpif_upcall upcall; /* Queued upcall information. */
+ struct ofpbuf buf; /* ofpbuf instance for upcall.packet. */
+};
+
struct dp_netdev_queue {
- struct dpif_upcall *upcalls[MAX_QUEUE_LEN];
+ struct dp_netdev_upcall upcalls[MAX_QUEUE_LEN];
unsigned int head, tail;
};
struct dp_netdev_queue *q = &dp->queues[i];
while (q->tail != q->head) {
- struct dpif_upcall *upcall = q->upcalls[q->tail++ & QUEUE_MASK];
-
- ofpbuf_delete(upcall->packet);
- free(upcall);
+ struct dp_netdev_upcall *u = &q->upcalls[q->tail++ & QUEUE_MASK];
+ ofpbuf_uninit(&u->buf);
}
}
}
return 0;
}
+static const char* internal_port_type(const struct dp_netdev* dp)
+{
+ if (dp->class == &dpif_netdev_class)
+ return "tap";
+ if (dp->class == &dpif_planetlab_class)
+ return "pltap";
+ return "dummy";
+}
+
static int
do_add_port(struct dp_netdev *dp, const char *devname, const char *type,
uint16_t port_no)
/* XXX reject devices already in some dp_netdev. */
/* Open and validate network device. */
- open_type = (strcmp(type, "internal") ? type
- : dp->class != &dpif_netdev_class ? "dummy"
- : "tap");
+ open_type = (strcmp(type, "internal") ? type : internal_port_type(dp));
error = netdev_open(devname, open_type, &netdev);
if (error) {
return error;
struct dp_netdev *dp = get_dp_netdev(dpif);
int port_no;
- if (dpif->dpif_class != &dpif_netdev_class) {
+ if (dpif->dpif_class != &dpif_netdev_class &&
+ dpif->dpif_class != &dpif_planetlab_class)
+ {
/* If the port name contains a number, try to assign that port number.
* This can make writing unit tests easier because port numbers are
* predictable. */
{
struct dp_netdev_queue *q = find_nonempty_queue(dpif);
if (q) {
- struct dpif_upcall *u = q->upcalls[q->tail++ & QUEUE_MASK];
- *upcall = *u;
- free(u);
+ struct dp_netdev_upcall *u = &q->upcalls[q->tail++ & QUEUE_MASK];
+
+ *upcall = u->upcall;
+ upcall->packet = buf;
ofpbuf_uninit(buf);
- *buf = *upcall->packet;
- free(upcall->packet);
+ *buf = u->buf;
return 0;
} else {
int queue_no, const struct flow *flow, uint64_t arg)
{
struct dp_netdev_queue *q = &dp->queues[queue_no];
+ struct dp_netdev_upcall *u;
struct dpif_upcall *upcall;
struct ofpbuf *buf;
size_t key_len;
return ENOBUFS;
}
- buf = ofpbuf_new(ODPUTIL_FLOW_KEY_BYTES + 2 + packet->size);
+ u = &q->upcalls[q->head++ & QUEUE_MASK];
+
+ buf = &u->buf;
+ ofpbuf_init(buf, ODPUTIL_FLOW_KEY_BYTES + 2 + packet->size);
odp_flow_key_from_flow(buf, flow);
key_len = buf->size;
ofpbuf_pull(buf, key_len);
ofpbuf_reserve(buf, 2);
ofpbuf_put(buf, packet->data, packet->size);
- upcall = xzalloc(sizeof *upcall);
+ upcall = &u->upcall;
upcall->type = queue_no;
upcall->packet = buf;
upcall->key = buf->base;
upcall->key_len = key_len;
upcall->userdata = arg;
- q->upcalls[q->head++ & QUEUE_MASK] = upcall;
-
return 0;
}
}
}
+#define DPIF_NETDEV_CLASS_FUNCTIONS \
+ dpif_netdev_enumerate, \
+ dpif_netdev_open, \
+ dpif_netdev_close, \
+ dpif_netdev_destroy, \
+ dpif_netdev_run, \
+ dpif_netdev_wait, \
+ dpif_netdev_get_stats, \
+ dpif_netdev_port_add, \
+ dpif_netdev_port_del, \
+ dpif_netdev_port_query_by_number, \
+ dpif_netdev_port_query_by_name, \
+ dpif_netdev_get_max_ports, \
+ NULL, /* port_get_pid */ \
+ dpif_netdev_port_dump_start, \
+ dpif_netdev_port_dump_next, \
+ dpif_netdev_port_dump_done, \
+ dpif_netdev_port_poll, \
+ dpif_netdev_port_poll_wait, \
+ dpif_netdev_flow_get, \
+ dpif_netdev_flow_put, \
+ dpif_netdev_flow_del, \
+ dpif_netdev_flow_flush, \
+ dpif_netdev_flow_dump_start, \
+ dpif_netdev_flow_dump_next, \
+ dpif_netdev_flow_dump_done, \
+ dpif_netdev_execute, \
+ NULL, /* operate */ \
+ dpif_netdev_recv_set, \
+ dpif_netdev_queue_to_priority, \
+ dpif_netdev_recv, \
+ dpif_netdev_recv_wait, \
+ dpif_netdev_recv_purge, \
+
const struct dpif_class dpif_netdev_class = {
"netdev",
- dpif_netdev_enumerate,
- dpif_netdev_open,
- dpif_netdev_close,
- dpif_netdev_destroy,
- dpif_netdev_run,
- dpif_netdev_wait,
- dpif_netdev_get_stats,
- dpif_netdev_port_add,
- dpif_netdev_port_del,
- dpif_netdev_port_query_by_number,
- dpif_netdev_port_query_by_name,
- dpif_netdev_get_max_ports,
- NULL, /* port_get_pid */
- dpif_netdev_port_dump_start,
- dpif_netdev_port_dump_next,
- dpif_netdev_port_dump_done,
- dpif_netdev_port_poll,
- dpif_netdev_port_poll_wait,
- dpif_netdev_flow_get,
- dpif_netdev_flow_put,
- dpif_netdev_flow_del,
- dpif_netdev_flow_flush,
- dpif_netdev_flow_dump_start,
- dpif_netdev_flow_dump_next,
- dpif_netdev_flow_dump_done,
- dpif_netdev_execute,
- NULL, /* operate */
- dpif_netdev_recv_set,
- dpif_netdev_queue_to_priority,
- dpif_netdev_recv,
- dpif_netdev_recv_wait,
- dpif_netdev_recv_purge,
+ DPIF_NETDEV_CLASS_FUNCTIONS
+};
+
+const struct dpif_class dpif_planetlab_class = {
+ "planetlab",
+ DPIF_NETDEV_CLASS_FUNCTIONS
};
static void
dpif_dummy_register__("dummy");
}
+