Hi all,
I am new for openvswitch world, I am confused about some code.
After datapath provided flow key to dpif-linux through netlink, how dpif-linux
queries the flow table?
More specificlly, how does the flow_get function get the 'reply' which contains
the action. I am getting stuck here.
dpif_linux_flow_get(const struct dpif *dpif_,
const struct nlattr *key, size_t key_len,
struct ofpbuf **actionsp, struct dpif_flow_stats *stats)
{
struct dpif_linux_flow reply;
struct ofpbuf *buf;
int error;
error = dpif_linux_flow_get__(dpif_, key, key_len, &reply, &buf);
if (!error) {
if (stats) {
dpif_linux_flow_get_stats(&reply, stats);
}
if (actionsp) {
buf->data = (void *) reply.actions;
buf->size = reply.actions_len;
*actionsp = buf;
} else {
ofpbuf_delete(buf);
}
}
return error;
} _______________________________________________
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