DN_NR_HASH
pipe_hdr = &pipe_table[DN_NR_HASH(x->pipe_nr)];
fs_hdr = &flowset_table[DN_NR_HASH(x->fs_nr)];
pipe_hdr = &pipe_table[DN_NR_HASH(pipe_nr)];
fs_hdr = &flowset_table[DN_NR_HASH(fs_nr)];
fs_hdr = &flowset_table[DN_NR_HASH(fs_nr)];
pipe_hdr = &pipe_table[DN_NR_HASH(x->pipe_nr)];
fs_hdr = &flowset_table[DN_NR_HASH(x->fs_nr)];
pipe_hdr = &pipe_table[DN_NR_HASH(pipe_nr)];