mlx4_get_slave_num_gids
short_field = mlx4_get_slave_num_gids(dev, slave, port);
mlx4_get_slave_num_gids(dev, 0, i);
int mlx4_get_slave_num_gids(struct mlx4_dev *dev, int slave, int port);
num_gids = mlx4_get_slave_num_gids(dev, slave, port);
num_gids = mlx4_get_slave_num_gids(dev, slave, port);
num_gids = mlx4_get_slave_num_gids(dev, slave, port);
num_gids = mlx4_get_slave_num_gids(dev, slave, port);